tag:blogger.com,1999:blog-51455552258101001532024-03-13T15:14:10.770-07:00polyseamAnonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comBlogger20125tag:blogger.com,1999:blog-5145555225810100153.post-86783201400037745492014-04-19T16:16:00.000-07:002014-04-19T17:27:47.096-07:00mark keller_final project<p><i>TETRAHEDRAL INFILL SOLIDS</i><br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgakpSueod9knAssgTEZBo1mVenASEhlgUE9Fb9r5yGjColjKa4c6Eby3ZcmHs4HnFCTKjyFFiET6bP8tkl6noJGhAGTrz7xs9F2n_0ZchQbPv-s7p5hK-xOBXeuhPtmGJTCgJcdmP7vBxE/s1600/gif1.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgakpSueod9knAssgTEZBo1mVenASEhlgUE9Fb9r5yGjColjKa4c6Eby3ZcmHs4HnFCTKjyFFiET6bP8tkl6noJGhAGTrz7xs9F2n_0ZchQbPv-s7p5hK-xOBXeuhPtmGJTCgJcdmP7vBxE/s1600/gif1.gif" /></a>
<br><br>This project follows a previous project I did using Processing, where I scripted a space frame that randomly assembled itself, analyzed its structural integrity at each frame, and fell apart. The space frame recorded most fit generations and used those as a starting point, allowing the program to 'evolve.'<br><br>
This project starts with the single tetrahedral frame and attempts to create manipulable and unique geometries within, as determined by the geometry of the tetrahedron.
<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4emLDZMjbPFEtyKMgNBm8w6MzMKeLTNeKespKSBh8TCatVEahUAgeRHMlXyJDp5-opK3SER9W7U2RP3N4HOyEtoShIrXaQfFmWSfcc4VaNukmd4Mtnts4Iop6ev16VW5e4cNEWl6lYf_D/s1600/01.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4emLDZMjbPFEtyKMgNBm8w6MzMKeLTNeKespKSBh8TCatVEahUAgeRHMlXyJDp5-opK3SER9W7U2RP3N4HOyEtoShIrXaQfFmWSfcc4VaNukmd4Mtnts4Iop6ev16VW5e4cNEWl6lYf_D/s1600/01.gif" /></a>
<br><br>The four surfaces of the tetrahedron each host a closed spline, tangent and coincident with each edge. A parameter drives the position that the spline is coincident with the edge, thereby driving the overall spline. An inner spline is also computed as coincident with lines from the vertices to the face center point, generally varying between ratios of .7 and .98.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbVG1tb_0UQl3a3uqkzeeRwNWzTYQuYrBKvdc9zyYICspGSTZ9jRj6LvYvI7C4_FZ_XLrqdUiqHRC8zCk1Ru3njxPJnyYfhKqDMHszjf5WQtdX_-f9xh0dfpO1nut8wpsS2auLiTuJrh9C/s1600/a05.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbVG1tb_0UQl3a3uqkzeeRwNWzTYQuYrBKvdc9zyYICspGSTZ9jRj6LvYvI7C4_FZ_XLrqdUiqHRC8zCk1Ru3njxPJnyYfhKqDMHszjf5WQtdX_-f9xh0dfpO1nut8wpsS2auLiTuJrh9C/s1600/a05.jpg" /></a>
<br><br>Each outer spline is extruded normal to itself, and intersected with the others to form the infill solid. Each inner spline is then extruded to cut holes from the solid.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJoyggtYqG3x_tg3s968YdvAlXJ1oOni-9g8qn1ZpZMgRoM9kshI6668dDrK3eK-Ueb-aWEJj4nifB3d8DDRb_SSokP6724qHw2fDEckWyP8Z2KMipCFlfculokvD5vgOBdfxbVdxjIV2C/s1600/a03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJoyggtYqG3x_tg3s968YdvAlXJ1oOni-9g8qn1ZpZMgRoM9kshI6668dDrK3eK-Ueb-aWEJj4nifB3d8DDRb_SSokP6724qHw2fDEckWyP8Z2KMipCFlfculokvD5vgOBdfxbVdxjIV2C/s1600/a03.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdZBtD9DHxcIsSkM54HsJXwKgv0TGnELhUEhW6pbZYfigzg7vf1rXMfvf3AAvo6CK3ygg_yZi1TYgcUNoy-lPhJRCkvEkTgKCt_NOv313DJEZsRATRYt1mEjunnuwWCvXKT4vY5cGr6PPA/s1600/a04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdZBtD9DHxcIsSkM54HsJXwKgv0TGnELhUEhW6pbZYfigzg7vf1rXMfvf3AAvo6CK3ygg_yZi1TYgcUNoy-lPhJRCkvEkTgKCt_NOv313DJEZsRATRYt1mEjunnuwWCvXKT4vY5cGr6PPA/s1600/a04.jpg" /></a>
<br><br>The result is a solid whose form depends both on the overall shape of the tetrahedron, and on the points determining the inner and outer splines. As the tetrahedron height changes, the infill solid morphs and expresses different geometric conditions.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjib8aD8pYPlBM1Yq3NJH8ec_2o213btWIGxsXk1Tziy194s6EZu3ewEJvZYhNh9qeiVfvsZl4Hv7jEGV6GIu33SCu2QS6rAGJkvIo7CIjxrQSdq5stgiLXbOMeOY135gtvimlB1DBiVXxc/s1600/gif2.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjib8aD8pYPlBM1Yq3NJH8ec_2o213btWIGxsXk1Tziy194s6EZu3ewEJvZYhNh9qeiVfvsZl4Hv7jEGV6GIu33SCu2QS6rAGJkvIo7CIjxrQSdq5stgiLXbOMeOY135gtvimlB1DBiVXxc/s1600/gif2.gif" /></a>
<br><br>The tetrahedron and infill can be multiplied as a powercopy. When each successive instantiation is built upon the previous, all tetrahedrons are interdependent: when a single tetrahedron's shape changes, all following tetrahedrons will deform, causing their infills to be modified. In this animation, the simple change in tetrahedron height changes every single instantiation every frame.<br><br>
It is also worth noting that the assembly tends to normalize over successive generations. While the first (stationary) tetrahedron is fairly irregular, the following instantiations trend towards being a regular tetrahedron.
<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6LxEm2Q2ILDCRxrAPV9iN1bWvHP-1H3wNCwYIiMkisYC_8HBA2wBu2G-w1DKouTeZ21E2ZggOd2D6gLDqyXlc1W2g6FLvnXaLGg0lAZeZTcTDTmC2TxEPqtfTfC7wM2ukLtEhsToMD-gd/s1600/gif4.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6LxEm2Q2ILDCRxrAPV9iN1bWvHP-1H3wNCwYIiMkisYC_8HBA2wBu2G-w1DKouTeZ21E2ZggOd2D6gLDqyXlc1W2g6FLvnXaLGg0lAZeZTcTDTmC2TxEPqtfTfC7wM2ukLtEhsToMD-gd/s1600/gif4.gif" /></a>
<br><br>The difficulty in the string of tetrahedrons is the ever-increasing chance of breaking the geometry. Errors such as the one below seemed to result from the solid operations required to form the infill solids. These errors made it difficult to get the above animation, though I would have liked to show a much greater range of motion.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2OJ3NIuzFQfTIttLfUgj7fK8ZALkkKh27OAUyNqc6o_SZi1DD7u-QkasYEPNiJ99X6OyD7cH6j25LRa7-37rS7jCwiO13Lj9QcbTYiTP_JSiMGjA9cCWDRCVbp3QHXOon-9pvLjOBTfzq/s1600/e01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2OJ3NIuzFQfTIttLfUgj7fK8ZALkkKh27OAUyNqc6o_SZi1DD7u-QkasYEPNiJ99X6OyD7cH6j25LRa7-37rS7jCwiO13Lj9QcbTYiTP_JSiMGjA9cCWDRCVbp3QHXOon-9pvLjOBTfzq/s1600/e01.jpg" /></a>
</p>
<br><br>I also took the parameters into tables where the values were randomized, resulting in some pretty strange assemblies.<br><br>
<i>SOLIDS:</i>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGuglSTLAfM4XKgwFGYnm1VlaB4I9tSwk_gNNV7H48PA9ljd9zfve_X4vQM1vQBjv0laBEmCk9GDD9Y63TEDm0lGvfEntegSng4B8IGynec9gpGiAnyMT_0kf2SEu5_iZ7wWVFnxvTn7bq/s1600/t02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGuglSTLAfM4XKgwFGYnm1VlaB4I9tSwk_gNNV7H48PA9ljd9zfve_X4vQM1vQBjv0laBEmCk9GDD9Y63TEDm0lGvfEntegSng4B8IGynec9gpGiAnyMT_0kf2SEu5_iZ7wWVFnxvTn7bq/s1600/t02.jpg" /></a>
<br><br><i>HOLES:</i>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEE41Zzsx_0PY9dwvn4PbxHIbtTSBeRQHCNtKIgazAwf2cDxW7pxI2MjODUSnLDnrzOP7hUX29Cvqz0CR8Qxf_qMvGocyyGyMrgqJZyoXyoag-JYyVlTbnxdHQSyHdWpjvovVxa4TfvJ0Z/s1600/t01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEE41Zzsx_0PY9dwvn4PbxHIbtTSBeRQHCNtKIgazAwf2cDxW7pxI2MjODUSnLDnrzOP7hUX29Cvqz0CR8Qxf_qMvGocyyGyMrgqJZyoXyoag-JYyVlTbnxdHQSyHdWpjvovVxa4TfvJ0Z/s1600/t01.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8qoo0Gxuj5Z6KClHhIbHpbHT5RCsyIrKcm-pKQNFW1tMqy8zVRQlVaxl0-fJJq9ZVIdt3DcQ8baLnKSRTOIa0bxbRKuQBSsDYFtgIF0eWoq9DvoHEVkK6KEPKDQb8YMZtQiRtVypMoF5r/s1600/h01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8qoo0Gxuj5Z6KClHhIbHpbHT5RCsyIrKcm-pKQNFW1tMqy8zVRQlVaxl0-fJJq9ZVIdt3DcQ8baLnKSRTOIa0bxbRKuQBSsDYFtgIF0eWoq9DvoHEVkK6KEPKDQb8YMZtQiRtVypMoF5r/s1600/h01.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhi5bh3ITRSTL-ztqehg6aWMopxH_ECNWTibY5kz-rqj-DTxkvUtkuNOklGD8Z6BJ3QgUtQs9CJemIlAR-g90DmS_XYeYztzvz94fizqbrIHk7uebFosruXnkI7yPhDPTUNTNeVGbRDCsPa/s1600/h02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhi5bh3ITRSTL-ztqehg6aWMopxH_ECNWTibY5kz-rqj-DTxkvUtkuNOklGD8Z6BJ3QgUtQs9CJemIlAR-g90DmS_XYeYztzvz94fizqbrIHk7uebFosruXnkI7yPhDPTUNTNeVGbRDCsPa/s1600/h02.jpg" /></a>
Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-45093391403394930522014-04-06T10:48:00.002-07:002014-04-06T10:48:40.209-07:00mark keller_10: scripted surfaces<p><i>SCRIPTED SURFACES</i><br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTVSlnb_xOwli2pgl0Ian75ctmouZuGSnTiA8qk4d2KuAb5LQB7AdHMjGBa9gfStSmhfz7tRw5y6kx6pr_PqKyoBFlikDRnjzYWveZ3g3x28-jc7CJ6qGmFQR1xgEMJp8IBG6hqJK7RW1M/s1600/02.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTVSlnb_xOwli2pgl0Ian75ctmouZuGSnTiA8qk4d2KuAb5LQB7AdHMjGBa9gfStSmhfz7tRw5y6kx6pr_PqKyoBFlikDRnjzYWveZ3g3x28-jc7CJ6qGmFQR1xgEMJp8IBG6hqJK7RW1M/s1600/02.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqE6hk7ZJ1fzD7azthWmRDSR-zn7P_RfZ0Kc-vt48YZmYK67llh8IpHcF_8ch1Nh5S603LOvGU_LbGXfXxpU-hYy7LlMjdVOmsTg1XJMRoTBD0BFcLh_1qSUVuH_KlwD-KCdwlOq0yIhI8/s1600/01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqE6hk7ZJ1fzD7azthWmRDSR-zn7P_RfZ0Kc-vt48YZmYK67llh8IpHcF_8ch1Nh5S603LOvGU_LbGXfXxpU-hYy7LlMjdVOmsTg1XJMRoTBD0BFcLh_1qSUVuH_KlwD-KCdwlOq0yIhI8/s1600/01.jpg" /></a>
<br><br>A fill surface is used with a passing point in the two examples above. At certain panels, the base triangle is not wide enough and the fill surface breaks, leaving a flat surface.<br><br>
Below, the fill surface is cut by an offset plane, and the bulginess of the surface is coded to correspond with the count of the curve and surface. Colors are made less gradient-like by switching the "j" variable with "i", allowing the red value to step incrementally every so many counts.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIAVTaZtfJvNrBeNnefdASNuA2KZ9dKIgr8ZjzusxwcOF_NbWQztk4txGjLAhWm0UZ3nRzGb3vjhSsX_6RCzDxJyiD_7pvCVB5Cc0dlDosylzglWZSHGdzyOxnvyIAGDuA35BhFjqjgYOR/s1600/02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIAVTaZtfJvNrBeNnefdASNuA2KZ9dKIgr8ZjzusxwcOF_NbWQztk4txGjLAhWm0UZ3nRzGb3vjhSsX_6RCzDxJyiD_7pvCVB5Cc0dlDosylzglWZSHGdzyOxnvyIAGDuA35BhFjqjgYOR/s1600/02.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFfii0NpMSusB_1GtOrgn8xHeVxelWBjTqq3QQQmLUXBvUk8rrfincQbMOEA0pUZWL4678Q_LxdNRczIVr4jg6_iHfJD2164P3aXuennddIJ2zGQ43qhUQHu3OR7f6uFpFzoOhtjNxHkKo/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFfii0NpMSusB_1GtOrgn8xHeVxelWBjTqq3QQQmLUXBvUk8rrfincQbMOEA0pUZWL4678Q_LxdNRczIVr4jg6_iHfJD2164P3aXuennddIJ2zGQ43qhUQHu3OR7f6uFpFzoOhtjNxHkKo/s1600/03.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihI7sf668OSyGxcIWeX17bD8GIObbUAfyoiaQzl-VlXCbsxFtDsoUyNJZoptAMeAAlhSn-R4SPvs0H4pDkPps6Tzt8MhiN72whMgXMFOH2tjJwHFbE2PXQC_bQAf36fOc6pwTzja2kl5Qb/s1600/05.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihI7sf668OSyGxcIWeX17bD8GIObbUAfyoiaQzl-VlXCbsxFtDsoUyNJZoptAMeAAlhSn-R4SPvs0H4pDkPps6Tzt8MhiN72whMgXMFOH2tjJwHFbE2PXQC_bQAf36fOc6pwTzja2kl5Qb/s1600/05.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNvG7uqGncYELFkPEgClG_KnxGpByRmFETW4W708H0I_d01epuf8FmGKlkfhzKRo1Oea8aCBy3GrzizwoM7O1xQPIacdylyt0a3O5qrh2-i3q0iX-xn3hq9mtEdj1WMxpCRGR_TVJkZyKP/s1600/06.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNvG7uqGncYELFkPEgClG_KnxGpByRmFETW4W708H0I_d01epuf8FmGKlkfhzKRo1Oea8aCBy3GrzizwoM7O1xQPIacdylyt0a3O5qrh2-i3q0iX-xn3hq9mtEdj1WMxpCRGR_TVJkZyKP/s1600/06.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhylYRxAMpItPwzkyH6z7htgZRA5srPyL80kOf7LUO5sic5R1cOMXMQbkAlRPqQVGxHqGHjMRPoyv7Hqo-uglcK8w1Gyf8eRSz7lpmPCuZ_PTBCtg50S83notycywnY6FgAipOkO2b4gXoY/s1600/08.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhylYRxAMpItPwzkyH6z7htgZRA5srPyL80kOf7LUO5sic5R1cOMXMQbkAlRPqQVGxHqGHjMRPoyv7Hqo-uglcK8w1Gyf8eRSz7lpmPCuZ_PTBCtg50S83notycywnY6FgAipOkO2b4gXoY/s1600/08.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilNuXQoDsTw7uVamq2lQmQJ1L5hNCuWGFcwVU-jyJtmfhwKQsgrJ7FkSOGoMQnUAXupWjAHajTa_thdhw5s4xnTbFugPqdpSYzHXNoGtxw1VPPtFrtbNapGoPje0bv8PGhRsnZ1Kwu1YP3/s1600/07.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilNuXQoDsTw7uVamq2lQmQJ1L5hNCuWGFcwVU-jyJtmfhwKQsgrJ7FkSOGoMQnUAXupWjAHajTa_thdhw5s4xnTbFugPqdpSYzHXNoGtxw1VPPtFrtbNapGoPje0bv8PGhRsnZ1Kwu1YP3/s1600/07.jpg" /></a>
<br><br>
Finally, a simple cylinder replaces the bulging fill surface to demonstrate the changing bulginess more clearly.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEil2dl4VxWX9-c2e5UjqTdMBNaFL32DEEezoBbhS4Uje-TK4Aq3EYZ4izRR-xxkWT2Ux3iJoshBYAAj7WRNmXkzk_4gS-D8n4VwhUJONNB3mCLlN_aPHiKlGqknUFK84IJFHJs_4H2jfJLr/s1600/09.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEil2dl4VxWX9-c2e5UjqTdMBNaFL32DEEezoBbhS4Uje-TK4Aq3EYZ4izRR-xxkWT2Ux3iJoshBYAAj7WRNmXkzk_4gS-D8n4VwhUJONNB3mCLlN_aPHiKlGqknUFK84IJFHJs_4H2jfJLr/s1600/09.jpg" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-2105699094654421112014-03-29T17:07:00.001-07:002014-03-29T17:07:29.913-07:00mark keller_09: scripted contours<p>SCRIPTED CONTOURS<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-uABea7X6OsmPcRrclEF1oqoZ-cEOqd2top4lTZ-h46v7Tw9up8gJUFikvbPg8AZseiLA-Zp-aJ9hjRP6rmkZPu2m-HFpLkzqFTv-Bed0PCRKuyf8uZE0rE544sP9pQmdne8715vb_1km/s1600/fill-surface.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-uABea7X6OsmPcRrclEF1oqoZ-cEOqd2top4lTZ-h46v7Tw9up8gJUFikvbPg8AZseiLA-Zp-aJ9hjRP6rmkZPu2m-HFpLkzqFTv-Bed0PCRKuyf8uZE0rE544sP9pQmdne8715vb_1km/s1600/fill-surface.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbWIqMD83TBShctxeg_fxRaAmg483mlYQIAu4RI2ifU7kJJ2Fsqoa80eiowSS4_mt9Xt_OTzDr31qTl6KH_A67JHWFnBZ57Te8_IfvzrCxEGbBdC0XUrMIOEhNOTG4FsO6v6F8GLunTrQr/s1600/01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbWIqMD83TBShctxeg_fxRaAmg483mlYQIAu4RI2ifU7kJJ2Fsqoa80eiowSS4_mt9Xt_OTzDr31qTl6KH_A67JHWFnBZ57Te8_IfvzrCxEGbBdC0XUrMIOEhNOTG4FsO6v6F8GLunTrQr/s1600/01.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhT-7UExMPn0vyhpBNBN6RLcxFc9wLKdRYjOMwPKo52h3rtiS1c6uKsYlqTX2e_3ARqh8RgHB4RcwK3_1YY_C-inwEpPoB3cskpSICghXBcNQ59QQgoM4WhssBVQf1mcpOF_hvpvOWwpuPH/s1600/02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhT-7UExMPn0vyhpBNBN6RLcxFc9wLKdRYjOMwPKo52h3rtiS1c6uKsYlqTX2e_3ARqh8RgHB4RcwK3_1YY_C-inwEpPoB3cskpSICghXBcNQ59QQgoM4WhssBVQf1mcpOF_hvpvOWwpuPH/s1600/02.jpg" /></a>
<br><br>
First a fill surface, then an open multisection surface. The multisection surface crashed when I attempted to use two controlling lines, as with the fill surface. To solve this, I used the multisection surface spine to drive a plane that then intersected the surface at the curve ratio.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvax5iXwSUQ7Di9C11vJRqdg9sbHFraSCXu7dmKc1j-QnOJ3d-P2bisYPBZ2gz8-S1hU1FEOLpOD7zWmT0q6pkG-lquVAgsHfArxxk_Kd6n_DqSHLJIu3lQa12qQqfyWlY-9RlUVWexSCc/s1600/open-surface.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvax5iXwSUQ7Di9C11vJRqdg9sbHFraSCXu7dmKc1j-QnOJ3d-P2bisYPBZ2gz8-S1hU1FEOLpOD7zWmT0q6pkG-lquVAgsHfArxxk_Kd6n_DqSHLJIu3lQa12qQqfyWlY-9RlUVWexSCc/s1600/open-surface.gif" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_fWTKWX8KPq7r5hYnNlhIz2hHDGQZWcw4fb4zpjddT4eGlPtsa_wz7GL6Ags4dFb7WeZoIfDi9g__73VPE9UZcNGk0FmcE_1NGy6ueebVWmvDrV8YXJGxdvXpOQdczXOrgv0Wq17NlNVZ/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_fWTKWX8KPq7r5hYnNlhIz2hHDGQZWcw4fb4zpjddT4eGlPtsa_wz7GL6Ags4dFb7WeZoIfDi9g__73VPE9UZcNGk0FmcE_1NGy6ueebVWmvDrV8YXJGxdvXpOQdczXOrgv0Wq17NlNVZ/s1600/03.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5RgkDJYKmX40ofqaI4xhC7gVmKCwI8qtgdO5G3_EW-dQLjdaihGhl0X8y8zLM3fDeo93jpvDnAB1asviPbqrdBh2uaNOQz_hMcIn7VzSUrrklsJf0mnaPsy1V2RYOrFipl4gfDejD2ZmQ/s1600/04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5RgkDJYKmX40ofqaI4xhC7gVmKCwI8qtgdO5G3_EW-dQLjdaihGhl0X8y8zLM3fDeo93jpvDnAB1asviPbqrdBh2uaNOQz_hMcIn7VzSUrrklsJf0mnaPsy1V2RYOrFipl4gfDejD2ZmQ/s1600/04.jpg" /></a>
<br><br>
Finally, a closed multisection surface using the same technique as the open one.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiUYfLfaYo5Hq56_2KnHJ6wHFdLQaVHj6_7FZSI6x_64zTMFlKnqYkKEv4ZmmwXuVbaE8YSlMeKXrretwpShTmnCn-xnzIXY4K5XwoydP6InHaL0UacLWWJ4YREROpWbOSTQG6uCLCUzLI/s1600/closed-surface.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiUYfLfaYo5Hq56_2KnHJ6wHFdLQaVHj6_7FZSI6x_64zTMFlKnqYkKEv4ZmmwXuVbaE8YSlMeKXrretwpShTmnCn-xnzIXY4K5XwoydP6InHaL0UacLWWJ4YREROpWbOSTQG6uCLCUzLI/s1600/closed-surface.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEickVCnMMXGS8jFvSWzgleS3GlrwAQIXOUPAe55v195edCKCU8ZfNhZmIEeyP-bMGEU3vuhmzo0rVxfMHABaqM1UxwM4x6X-MEFdhVUYxAgzJVmtIRMkzoCPLC-0jqgkr8PfEly0O1EKV-w/s1600/06.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEickVCnMMXGS8jFvSWzgleS3GlrwAQIXOUPAe55v195edCKCU8ZfNhZmIEeyP-bMGEU3vuhmzo0rVxfMHABaqM1UxwM4x6X-MEFdhVUYxAgzJVmtIRMkzoCPLC-0jqgkr8PfEly0O1EKV-w/s1600/06.jpg" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-43365048570018629742014-03-22T18:42:00.001-07:002014-03-22T18:42:47.581-07:00mark keller_08: reading<p><i>Algorithmic Architecture</i> by Kostas Terzidis<br><br>
"While the future of computers appears to include a variety of possible roles, it is worth exploring these roles in the context provided by the question: 'Who designs?' If one takes the position that designing is not exclusively a human activity and that ideas exist independently of human beings, then it would be possible to design a computational mechanism which would associate those ideas" (61).<br><br>
This chapter takes a freewheeling look at the role of technology in design by tackling both the design process and scientific method. At times comments like, "once a design idea is agreed upon, the architects move into the production phases" seem to miss the importance of existing, however convoluted, integration of design and production (read science) methods at all phases. Nonetheless, the larger argument towards a unified strategy to mediate scientific and design methodologies resonates quite loudly with the current state of architecture. I would modify the author's final statement seen above to not imply that the machine is in any way a designer. I find this mysticizes the determinism of computation. I would argue that the algorithmic machine allows the designer to work at a different scale: at the scale of the rule and the system rather than only at the scale of the result. The algorithmic machine extracts results from the rules and systems, and no matter how impossible they are to imagine relating to the ruleset, the human is still the sole point of design in the process.
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-68888952078942380982014-03-22T16:28:00.001-07:002014-03-22T16:55:35.573-07:00mark keller_08: random tetrahedron fractal<p>RANDOM TETRAHEDRON FRACTAL<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJB_OY8UXjfIT8_eJX7MZiXVIoPyhvqRKTmtpqWKLuMrMZz5TjLfEaJKAa1W7beL5BYxElqremJF73o5w6r2XSYMwDA9_Kjx3KpcR3uU0KRPBO7yxp7G4URPOxQABHybd1KySs1x8-EnIZ/s1600/gif2.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJB_OY8UXjfIT8_eJX7MZiXVIoPyhvqRKTmtpqWKLuMrMZz5TjLfEaJKAa1W7beL5BYxElqremJF73o5w6r2XSYMwDA9_Kjx3KpcR3uU0KRPBO7yxp7G4URPOxQABHybd1KySs1x8-EnIZ/s1600/gif2.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioT65snbglBV-MbwLSY7qakuj-h7rfTuUewo7UBV3HdC0gpjjRwhLaAMDvWcE2Ia6T3xGVKPI8BFtZxwedsCcTyKflpV8-kO8gySUNKeBd0mhPE1jennxCik1K1OGkQIUDvgFZn-EWNoSh/s1600/ReticulatingFractalStarFlower4.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioT65snbglBV-MbwLSY7qakuj-h7rfTuUewo7UBV3HdC0gpjjRwhLaAMDvWcE2Ia6T3xGVKPI8BFtZxwedsCcTyKflpV8-kO8gySUNKeBd0mhPE1jennxCik1K1OGkQIUDvgFZn-EWNoSh/s1600/ReticulatingFractalStarFlower4.jpg" /></a>
<br><br>Nested self-similar powercopies are used here to create a fractal tetrahedron geometry. Shown below is the unit powercopy. Each instantiation can be controlled by dictating the three points along the original triangle that determine the tetrahedron. Here these occur at the lines' midpoints, but can be set to any value, or randomized.<br><br>A height parameter responds to the area of the base triangle, while a universal multiplier allows control of the entire structure's relative height (see gif at top).<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgoDn990fkPZQ5OosrebyH1PUI3Gpeptu1gq97l8cl9aRWfmE0Dn3EB4GBWf2_GQDAVhkaHPxYd_n5gfE4skCgPgBEDTwK0Oa7gQm-vyTDny2psH7YN3MbOyT8N_TtHPFuATdsGsvjqFUl/s1600/01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgoDn990fkPZQ5OosrebyH1PUI3Gpeptu1gq97l8cl9aRWfmE0Dn3EB4GBWf2_GQDAVhkaHPxYd_n5gfE4skCgPgBEDTwK0Oa7gQm-vyTDny2psH7YN3MbOyT8N_TtHPFuATdsGsvjqFUl/s1600/01.jpg" /></a>
<br><br>The color of the tetrahedron is driven by a rule that relates the tetrahedron's normal vector to the Z and X axes. These two angle values drive the R and G value respectively. Permutations of controlled and randomized structures follow:<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkkWVZKWUhQ30lkYL6O3Ak0JoeNP_FJXy8GxOOll-NLq-sNPc5eHpUc7jmyaqsxGIihkKEFmlDGFCs_C0-Z4L5DuMkuceiNHKFBMkXs70gABz2hOCg_XpEEB1c0ExmwrxlUyaxUq6dFkSH/s1600/02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkkWVZKWUhQ30lkYL6O3Ak0JoeNP_FJXy8GxOOll-NLq-sNPc5eHpUc7jmyaqsxGIihkKEFmlDGFCs_C0-Z4L5DuMkuceiNHKFBMkXs70gABz2hOCg_XpEEB1c0ExmwrxlUyaxUq6dFkSH/s1600/02.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSaIqIQW2CjyPaFVvUJBTp4WS6TaARMyAgX1R4uqTyWIT72jLe_5F_LsGDqGmhyphenhyphenF7QbcM9OigsrFA8Gboida7j7OJCB6eqJJnsDnKJXAMup4SnxtQCiWX_uJ5W9120H_HIV7LYQsw9tgMj/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSaIqIQW2CjyPaFVvUJBTp4WS6TaARMyAgX1R4uqTyWIT72jLe_5F_LsGDqGmhyphenhyphenF7QbcM9OigsrFA8Gboida7j7OJCB6eqJJnsDnKJXAMup4SnxtQCiWX_uJ5W9120H_HIV7LYQsw9tgMj/s1600/03.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDHGCSjxesZV8hRy1a-EW5V0wWZ7eILKmbUKrUx5KjCiUPV79T2ejXW5qjdkiEXJpBw_ukjmZ_pGGNzLvaCZ9BSEaf5-J8xfMAxYETAZuxn22EeNyQf3TyY1AkBPrRIbcwz8DIBiTsFgVY/s1600/04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDHGCSjxesZV8hRy1a-EW5V0wWZ7eILKmbUKrUx5KjCiUPV79T2ejXW5qjdkiEXJpBw_ukjmZ_pGGNzLvaCZ9BSEaf5-J8xfMAxYETAZuxn22EeNyQf3TyY1AkBPrRIbcwz8DIBiTsFgVY/s1600/04.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSmEla1IVhChodZ43xwKO7G-MyQMPeunQs8cRR7WsH04SoY9zxP5Gw15ewKzskkcEK3ONhYbAO0AmAi__z8RLhLzFxa6KE_1SHMdIXtaUI1sqX5w7UpFV4fp9uWco3YzXXAQaPbNZeFEUD/s1600/05.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSmEla1IVhChodZ43xwKO7G-MyQMPeunQs8cRR7WsH04SoY9zxP5Gw15ewKzskkcEK3ONhYbAO0AmAi__z8RLhLzFxa6KE_1SHMdIXtaUI1sqX5w7UpFV4fp9uWco3YzXXAQaPbNZeFEUD/s1600/05.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1FsOqXSCzIB45CZmZMN5bVxe1AwwDxbImXDjbwK3ImJ_2ja-bmOiFEBNoGqYQfwxTfHqWLzjNzisWMaADh6-r2G16tIU1lCiU9EYiL4NTOoB1AeXlKHbQh7mcJhSFtHdvrXKbffpvuM8P/s1600/06.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1FsOqXSCzIB45CZmZMN5bVxe1AwwDxbImXDjbwK3ImJ_2ja-bmOiFEBNoGqYQfwxTfHqWLzjNzisWMaADh6-r2G16tIU1lCiU9EYiL4NTOoB1AeXlKHbQh7mcJhSFtHdvrXKbffpvuM8P/s1600/06.jpg" /></a>
<br><br>I ran into difficulty with the naming of new powercopies, and had to manually rename each new powercopy to avoid redundancy in the design table. The other problem was that a the powercopy seemed to accumulate more sub-versions of that powercopy as I placed them. Below you can see a powercopy placed with the extra sub-versions highlighted. I was not able to find an efficient way to place nested powercopies without this happening, and simply went back in and deleted them.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN6tjQtGjSP052alezZj5cRMaQ7Eymjab_XZbteghyphenhyphenAT3Nj9z_YWcge9z4TRYAc4V5dYfrgJDjDKTZuPonZmZfPSvbdf-6L4HUv7929c8n4HwztagrcKcx3PAF3NcIkrsJrgCN40cVJGba/s1600/07.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjN6tjQtGjSP052alezZj5cRMaQ7Eymjab_XZbteghyphenhyphenAT3Nj9z_YWcge9z4TRYAc4V5dYfrgJDjDKTZuPonZmZfPSvbdf-6L4HUv7929c8n4HwztagrcKcx3PAF3NcIkrsJrgCN40cVJGba/s1600/07.jpg" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-32455611248063375972014-03-15T11:25:00.002-07:002014-03-15T11:27:22.967-07:00mark keller_07: unfolded powercopy tower<p>UNFOLDED POWERCOPY TOWER<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi329a9dloeUjLj6WnJTDJao24yXv_iYTtTV4jlOh7lYu6KTFzZf6lQ_fKInRrbsHdz2geyl8bnQCJbqTByYl-hV9dMs1SA0Ncv43K5irJgj0eaODdZK31MfAZeg00RljgnBA7FgQZthVDq/s1600/images2.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi329a9dloeUjLj6WnJTDJao24yXv_iYTtTV4jlOh7lYu6KTFzZf6lQ_fKInRrbsHdz2geyl8bnQCJbqTByYl-hV9dMs1SA0Ncv43K5irJgj0eaODdZK31MfAZeg00RljgnBA7FgQZthVDq/s1600/images2.gif" /></a>
<br><br>
The powercopy geometry is formed from an input of three points, forming a plane on which a circle is drawn and copied along the Z axis. The area of the surface defined by the three input points determines the distance the second circle is copied, and also its radius. The original circle's radius is related to the length of the line it's centerpoint lies on.
<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLkGZIC0ryopFWP1IDHd3O3EVRVAw23GbXuJIscIF9UOWwvnuDyfyZ96zNAAqqmrz5ig9ehxqaYIaNhuGagDjdUMcwxbCU7IZ6YyjeblkuzzhmFV-JL7HEytlfTQLg18Sx562Le57BpoAW/s1600/04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhLkGZIC0ryopFWP1IDHd3O3EVRVAw23GbXuJIscIF9UOWwvnuDyfyZ96zNAAqqmrz5ig9ehxqaYIaNhuGagDjdUMcwxbCU7IZ6YyjeblkuzzhmFV-JL7HEytlfTQLg18Sx562Le57BpoAW/s1600/04.jpg" /></a>
<br><br>
A line connecting the two circles can be adjusted to define the twist of the resulting broken hyperboloid. The final geometry and corresponding unfolded shape are as follows:<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXTgqbKR5Gm0LNnsQrPKDxO5Zsxj0R6nmsbPVmW7y8Sb6QIHiwlHe_uX4MGUgAQOc9bpidrESvn9IUWJH8cr6tVJ2yYPtVJaLxeKx0ReYqA0111RYX3hh5dTee3wp-7fR_ok7HDnO2KnDk/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXTgqbKR5Gm0LNnsQrPKDxO5Zsxj0R6nmsbPVmW7y8Sb6QIHiwlHe_uX4MGUgAQOc9bpidrESvn9IUWJH8cr6tVJ2yYPtVJaLxeKx0ReYqA0111RYX3hh5dTee3wp-7fR_ok7HDnO2KnDk/s1600/03.jpg" /></a>
<br><br>
When the framework is modified, the powercopies and their unfolded surfaces adapt. The powercopy is also controlled by a universal parameter that relates to the height of geometry. As this multiplier is varied, all powercopies react (see top).<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6ztqHiVgDyxhC-RW0Ey0wF7POSfYWQrxnyaRPqer4k_1pEp_QrapBvApt5OqkzWdnK84mCpo7luILpbc5CYKcv2QVimTGcZT8ctpEANJDvO1w3XSCGvDKF4h0ynimmob9RsCa4gkzv-1p/s1600/e01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6ztqHiVgDyxhC-RW0Ey0wF7POSfYWQrxnyaRPqer4k_1pEp_QrapBvApt5OqkzWdnK84mCpo7luILpbc5CYKcv2QVimTGcZT8ctpEANJDvO1w3XSCGvDKF4h0ynimmob9RsCa4gkzv-1p/s1600/e01.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCl9ob7pksfVSm6Y4RkENWUtbBPr-W6b3YOWM4PBdU9jIdhWxGU9Qmf82J79u_Ft3cLOcUZcXRk0A-bVDAk_28hpn-u5F7OdF8cogTyCLyaygIpqhH-oHXlTC0HTvEb6v0aJ60loxlQlIy/s1600/e02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCl9ob7pksfVSm6Y4RkENWUtbBPr-W6b3YOWM4PBdU9jIdhWxGU9Qmf82J79u_Ft3cLOcUZcXRk0A-bVDAk_28hpn-u5F7OdF8cogTyCLyaygIpqhH-oHXlTC0HTvEb6v0aJ60loxlQlIy/s1600/e02.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUo5Qri1AuoH4GbFVhEhaCjPDhvb_s6VT0uDQwKnP9PbotQKBAQZGjfDz3FtLaTgcJX4uXMyQ5v1ib75U4__fyZmTu3hsGx9kLdrND-YjRv8eDRdBqiwcB5Mfx9hVlG6TqYLjVvrwcbDbL/s1600/e03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUo5Qri1AuoH4GbFVhEhaCjPDhvb_s6VT0uDQwKnP9PbotQKBAQZGjfDz3FtLaTgcJX4uXMyQ5v1ib75U4__fyZmTu3hsGx9kLdrND-YjRv8eDRdBqiwcB5Mfx9hVlG6TqYLjVvrwcbDbL/s1600/e03.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqCxxQ6lOqX0_KTqzkc6uNlMIXsgyanRnIwwHqPo5C-_c_4dUzx-NAjZLSQ3Xm5In4tAVA1RUT9T3CfvYWwGFzmL33qrrDRkNaSl4ilS2uAgtxgULrwlqMkG9RouW0OahIStslsjtdO8kY/s1600/e04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqCxxQ6lOqX0_KTqzkc6uNlMIXsgyanRnIwwHqPo5C-_c_4dUzx-NAjZLSQ3Xm5In4tAVA1RUT9T3CfvYWwGFzmL33qrrDRkNaSl4ilS2uAgtxgULrwlqMkG9RouW0OahIStslsjtdO8kY/s1600/e04.jpg" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-72516302993156768002014-03-13T17:18:00.001-07:002014-03-13T17:18:41.897-07:00mark keller_07: reading<p><i>Models, Prototypes, and Archetypes</i> by Mark Burry<br><br>
"We have arrived at a point where increasing the complexity of design in order to be more responsive to environmental factors potentially affords new manufacturing options and new roles for the model—that is, prototyping, and within this process we might be observing the emergence of entirely new archetypes for new architectural responses fitting for our time." (57)<br><br>
Mark Burry discusses the utility of the prototype at 1:1 scale as the archetype for production in his projects, specifically Antoni Gaudi's Basílica i Temple Expiatori de la Sagrada Família. He posits that the line between digital and physical manufacturing is not as cut-and-dry as the aphorism, "file to factory," and that the digital model rendered physically may become the archetype of production where an archetype is not already known. I would say that this method of production is quite well suited for the extremely unique, difficult, and cost intensive work of Gaudi. However, it may fail to translate to projects that demand delivery on tighter budgets that cannot afford production of 1:1 prototypes, but must rely solely on small scale prototypes or digital models. In these instances, which I believe are much more common than not, it would seem the aphorism is still blurred, as digital fabrication rarely proceeds directly from file to factory without aspects of material research, trial prototyping, strength testing, etc. Despite the lack of the 1:1 model that Mr. Burry finds so appealing, the archetype may still be found in the realm of the physical, albeit in a more dispersed, collective manner. Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-47017174265988768572014-03-09T10:00:00.001-07:002014-03-09T14:55:47.215-07:00mark keller_06: powercopy tower<p>POWERCOPY TOWER<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4ZEvaQTveOYKP4P_LoTORbs6M2GKkW85FnNbTS2Sd5qUZoR43xzIxcBokcdHk2TPKGMkfqWNw-AK1n2uAL9ekhdypEMfC3-1iTzZKs4bQk1EJrWGyvHLkuEzdN2grXKEoVtAqWuB94poB/s1600/images.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4ZEvaQTveOYKP4P_LoTORbs6M2GKkW85FnNbTS2Sd5qUZoR43xzIxcBokcdHk2TPKGMkfqWNw-AK1n2uAL9ekhdypEMfC3-1iTzZKs4bQk1EJrWGyvHLkuEzdN2grXKEoVtAqWuB94poB/s1600/images.gif" /></a>
<br><br>The framework:<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBxdaWT0ga5wecKiOyoShgVeRVCnDwflwiNhhZBequg1a8yEcu4hIqQrynj4yU1nLfHazTEJAdYon-yadpyzpY5jV9ebbTo1EeudFmw5DZy5vajph9TBPJU1HYB0pym3PkTF913vWWT7Q5/s1600/01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBxdaWT0ga5wecKiOyoShgVeRVCnDwflwiNhhZBequg1a8yEcu4hIqQrynj4yU1nLfHazTEJAdYon-yadpyzpY5jV9ebbTo1EeudFmw5DZy5vajph9TBPJU1HYB0pym3PkTF913vWWT7Q5/s1600/01.jpg" /></a>
<br><br>The powercopy is created using three points as inputs. The surface area of the resulting triangle drives the height of a broken tetrahedron. An external parameter acts as a multiplier between the triangle area and the tetrahedron height.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgebjwLxIVcklBvpuHETcFVoQDr6QUXrP2I8q8onDms9MvECBAN7VBTihuKXb2S9X_NMxUJi1zOlZUxKM544vpR0NVIKiKbhs0Sc6yWZfP5AsTpHYLNq9MyfmVyI5kMFXRSRspr-YNlZhVx/s1600/02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgebjwLxIVcklBvpuHETcFVoQDr6QUXrP2I8q8onDms9MvECBAN7VBTihuKXb2S9X_NMxUJi1zOlZUxKM544vpR0NVIKiKbhs0Sc6yWZfP5AsTpHYLNq9MyfmVyI5kMFXRSRspr-YNlZhVx/s1600/02.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjOptESKLetEyCiZDZaBCWBIWRDgbx3VAH-d4X92v7pnC0YPVqjAn2VDX_sqQU7hnbYnkyldbJsUij5qD6pFyZbCrH22Nd_oHE19f-GGwilx9IFfwQS4rjz2DB3o9PjbB_yAmAILuhMVud/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjOptESKLetEyCiZDZaBCWBIWRDgbx3VAH-d4X92v7pnC0YPVqjAn2VDX_sqQU7hnbYnkyldbJsUij5qD6pFyZbCrH22Nd_oHE19f-GGwilx9IFfwQS4rjz2DB3o9PjbB_yAmAILuhMVud/s1600/03.jpg" /></a>
<br><br>A compound powercopy is then created where the original powercopy hosts four child powercopies of the same type. As the height multiplier changes, the broken tetrahedron opens and closes.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQLMTAC7CGQ0sQvic9mm7QUudUUEluCgvMi4u6WlecmN2mK1K0RWV0VyOYWR_70JBL4gWpwdebtLzvqFHxLBRkqr5XhlQodCIjgGRu92RYjfZw7UhGiUsdo1xZ3mAoTVbhb_zz3YJo9UT-/s1600/power2.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQLMTAC7CGQ0sQvic9mm7QUudUUEluCgvMi4u6WlecmN2mK1K0RWV0VyOYWR_70JBL4gWpwdebtLzvqFHxLBRkqr5XhlQodCIjgGRu92RYjfZw7UhGiUsdo1xZ3mAoTVbhb_zz3YJo9UT-/s1600/power2.gif" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-61958443728715898272014-03-03T17:27:00.001-08:002014-03-03T17:29:10.649-08:00mark keller_06: reading<p>
<i>Tectile Tectonics</i> by Lars Spuybroek<br><br>
"We come across the same erroneous idea time and time again, be it in Mumford, Schemacher, Ellul, or Illich: the belief that we can humanize machines by slowing them down, refraining from their continuous use, alternating their use with authentic home- and handcrafting, or using them on a less massive scale." (26)<br><br>
While I thoroughly enjoy the premise of the topic, Spuybroek is making fairly radical claims connecting gothic architecture to the realms both of the digital and the natural without a thorough or convincing argument in support. Here, the gothic is seen as a mediating typology that straddles the line between human flourish and mechanic production. I agree that it is, but isn't any other architectural typology as well? Further, what makes the gothic more of a balance between these two poles than neo-classical, modern, or postmodern architecture? Surely the great synthesis of custom production at mass scales and machine-oriented assembly of today is an amplified example of the gothic, albeit at times with less impressive formal results.<br><br>
Spuybroek's primary argument for the digital tie lies in his imagined example of the digital coding of the cathedral. While using Ruskin's six criteria as reference, he attempts to mentally draw the procedure of the formation of the edifice, as one might in CATIA. At a surficial level this is perhaps evocative, but the imagery used to relate sections such as "savageness", "naturalism", and "changefulness" all belongs to a fantastical cartoonish portrayal of the actual intricacies required both to model and to manufacture such a cathedral. If Spuybroek was truly interested in digital nature, his language would be much more specific and much more singular to gothic architecture.
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-71690266136197249542014-02-23T12:04:00.002-08:002014-02-23T12:07:18.828-08:00mark keller_05: flexible tower<p>FLEXIBLE TOWER<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC3Mcn9FvcW68PKpWq44LZtbhn8Urslz7MqbJtUXAhygnCmLkdaB-FDRzYnqB2rqsH5bobjnKXCbAIaZLJlk-I17z5Ti4XnIq2lDlZA8bsMRmkskk61jtlWz2giTt3o30L43C6c9hc0-Zm/s1600/02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC3Mcn9FvcW68PKpWq44LZtbhn8Urslz7MqbJtUXAhygnCmLkdaB-FDRzYnqB2rqsH5bobjnKXCbAIaZLJlk-I17z5Ti4XnIq2lDlZA8bsMRmkskk61jtlWz2giTt3o30L43C6c9hc0-Zm/s1600/02.jpg" /></a><br><br>
A framework is composed by extracting five profiles from a multi-section solid. The solid lofts from a triangular profile at the base to a hexagonal profile back to a triangular profile at the top.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxC8cdJI1MBe2HN-i8vdZa0xMv8eQMnTqefSVvJ-4Vg3sazaWm4xww0OeXhw7fzDRiKcR0WN0EPkIEXUMF4ECzDj6DAE1HvrhouWX3EnhWKaU32pNG6vdqQN513n7hp_8HQQvQp94yEB8n/s1600/c01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxC8cdJI1MBe2HN-i8vdZa0xMv8eQMnTqefSVvJ-4Vg3sazaWm4xww0OeXhw7fzDRiKcR0WN0EPkIEXUMF4ECzDj6DAE1HvrhouWX3EnhWKaU32pNG6vdqQN513n7hp_8HQQvQp94yEB8n/s1600/c01.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYSuOZMk_O_om3yTDSVp3Ng0ush41S0khaWxkq-MDAaL3aRCGB8hz6QQff7pr__RT6hAdFy_YI5vze3yFdIdTpwKmuYr4jq0zQ56RCtkgZaiGKsU51iZdhQRzl9k0HKJ71809AtcbOYjq7/s1600/c02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYSuOZMk_O_om3yTDSVp3Ng0ush41S0khaWxkq-MDAaL3aRCGB8hz6QQff7pr__RT6hAdFy_YI5vze3yFdIdTpwKmuYr4jq0zQ56RCtkgZaiGKsU51iZdhQRzl9k0HKJ71809AtcbOYjq7/s1600/c02.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjbZ5ax7Mr_dl4Xpps-DCcnRdRLSU9Co16l8vAy5hh7c40IjjXG568ArQcyBfr2tbmBHvRdnyHs_ZKETyZotEfBMrfWsYlNbbZ7ncs17uJgZQwzHwO5Djc7ndtz3wAvr5cAtEQcia4FABg/s1600/c03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjbZ5ax7Mr_dl4Xpps-DCcnRdRLSU9Co16l8vAy5hh7c40IjjXG568ArQcyBfr2tbmBHvRdnyHs_ZKETyZotEfBMrfWsYlNbbZ7ncs17uJgZQwzHwO5Djc7ndtz3wAvr5cAtEQcia4FABg/s1600/c03.jpg" /></a><br><br>
The desire is that the tower will bend substantially under its own weight. To accomplish this, members were sized at 2x3 Douglas Fir timber, and self weight was analyzed at 10 times the density of Douglas Fir.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh83NGcAMZffPoS2iPsUAwOT03wj1ksaEFhxdAXsDRFILdhGIJDKVYuBLeLQhFEKVsWrSIotqS98CP7cjEeUtl3DJhbUg_GbjJC9St2QMoUnIaQepUHNd_STQspMWvGLKOaYwnWx6w6uz6G/s1600/01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh83NGcAMZffPoS2iPsUAwOT03wj1ksaEFhxdAXsDRFILdhGIJDKVYuBLeLQhFEKVsWrSIotqS98CP7cjEeUtl3DJhbUg_GbjJC9St2QMoUnIaQepUHNd_STQspMWvGLKOaYwnWx6w6uz6G/s1600/01.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLtsuYqj3wGgLTOK2-FaAmktdi3UO5h2cgjR_WvQasqRreW7R-KdyXP5JMWtCu3k3qeTn2wEBIM2_LsC8ao23u0mD2CgoULJ1so4mCHR-SUtHopP2Q92BXP9VhR2flyTpxc0mGUzFpamgG/s1600/01.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLtsuYqj3wGgLTOK2-FaAmktdi3UO5h2cgjR_WvQasqRreW7R-KdyXP5JMWtCu3k3qeTn2wEBIM2_LsC8ao23u0mD2CgoULJ1so4mCHR-SUtHopP2Q92BXP9VhR2flyTpxc0mGUzFpamgG/s1600/01.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC3Mcn9FvcW68PKpWq44LZtbhn8Urslz7MqbJtUXAhygnCmLkdaB-FDRzYnqB2rqsH5bobjnKXCbAIaZLJlk-I17z5Ti4XnIq2lDlZA8bsMRmkskk61jtlWz2giTt3o30L43C6c9hc0-Zm/s1600/02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhC3Mcn9FvcW68PKpWq44LZtbhn8Urslz7MqbJtUXAhygnCmLkdaB-FDRzYnqB2rqsH5bobjnKXCbAIaZLJlk-I17z5Ti4XnIq2lDlZA8bsMRmkskk61jtlWz2giTt3o30L43C6c9hc0-Zm/s1600/02.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTnxClbx6JzVx-J0VovP4KJYEMzXzVO_58uJzmBvp7tLsdSwq7mUxnobfLuauvMmwuyyHdlFsSBigQoRdvfqZRPBK1im10o4AkEQpJLIXpfqBT56YkPneRGb_D7TJnkRPDsSuHzWh0hiLP/s1600/02.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTnxClbx6JzVx-J0VovP4KJYEMzXzVO_58uJzmBvp7tLsdSwq7mUxnobfLuauvMmwuyyHdlFsSBigQoRdvfqZRPBK1im10o4AkEQpJLIXpfqBT56YkPneRGb_D7TJnkRPDsSuHzWh0hiLP/s1600/02.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5hY_E3MakCSHwye_TragvDN88f9pTGAi10XBZUhbAyFVXcy-DcMNWl0kOtXufaz5voDGvKe8bsDKBQOblZnBVEDX0puSwHjjEyF94cC6-JLE3EJWV5z2JOPHRfjzwmFYEiOH8fORUkF5j/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5hY_E3MakCSHwye_TragvDN88f9pTGAi10XBZUhbAyFVXcy-DcMNWl0kOtXufaz5voDGvKe8bsDKBQOblZnBVEDX0puSwHjjEyF94cC6-JLE3EJWV5z2JOPHRfjzwmFYEiOH8fORUkF5j/s1600/03.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6TkzyHMtowjzsgij4TMw8YMya0IYu67bSGb9uDzWQGXorrKx40ytgIT0Kg3gqOuG7S5rEWCT3ehrVRJxRpfGgNiH9PRAWBNwNVNx6E7dPwOshmSsOWHM-rdW2nwEwsMsfsMvbFWz-ZAD_/s1600/03.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6TkzyHMtowjzsgij4TMw8YMya0IYu67bSGb9uDzWQGXorrKx40ytgIT0Kg3gqOuG7S5rEWCT3ehrVRJxRpfGgNiH9PRAWBNwNVNx6E7dPwOshmSsOWHM-rdW2nwEwsMsfsMvbFWz-ZAD_/s1600/03.gif" /></a><br><br>
The following iteration clearly bent too much:<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXOBCxPkm1Vq1_I2Mq6jNjGYSdfEDKXocdWXdX-74vHJw2bg5cGhb7gcND5UT265FU0b2150eyJycebp8Xnl2Q3B0VpiiPXkHMkzRnsr_2aDfUaSpBwOKcUlb5ytFtqIh4XMhj2zEqUzs_/s1600/04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXOBCxPkm1Vq1_I2Mq6jNjGYSdfEDKXocdWXdX-74vHJw2bg5cGhb7gcND5UT265FU0b2150eyJycebp8Xnl2Q3B0VpiiPXkHMkzRnsr_2aDfUaSpBwOKcUlb5ytFtqIh4XMhj2zEqUzs_/s1600/04.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_FJSQc0v4lH-YlaEAQJtren6lWWYiOrsm0E9J6L1ZzvoPoELdie1MrcWaTa6IuJdBgsgEq_vXqG5g0wICf11-0QavnM5LZ43ah9mNcucAfbr3XmTGrF-YKEFg9JcEHuKQlPJmOF4lt7Nx/s1600/04.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_FJSQc0v4lH-YlaEAQJtren6lWWYiOrsm0E9J6L1ZzvoPoELdie1MrcWaTa6IuJdBgsgEq_vXqG5g0wICf11-0QavnM5LZ43ah9mNcucAfbr3XmTGrF-YKEFg9JcEHuKQlPJmOF4lt7Nx/s1600/04.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAuHTTYEnynvkpbOf-LJ34hh7bh28eUory8u_awGQud88jdtqQ_DRkO_QHdanXHCZOQhxf86yW4dD66xHwgpaWn19EJoIyfUg9hodyR-rKHsj_1uqxDHUABF2ciar5Mh5pXXS7uB3cCGiB/s1600/05.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjAuHTTYEnynvkpbOf-LJ34hh7bh28eUory8u_awGQud88jdtqQ_DRkO_QHdanXHCZOQhxf86yW4dD66xHwgpaWn19EJoIyfUg9hodyR-rKHsj_1uqxDHUABF2ciar5Mh5pXXS7uB3cCGiB/s1600/05.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2X9Wis86BR5TkSkBMaTMwrJNRo-k1G3IVBBmOAo689Mc6rlSUFwkw9r7M1SMucu4xLmzFbAhCrDtsl4oB_JD3VpDzuwPHUrJn0Fs3-NxdrqcV_MkA8dIlyGIKEIhrkWqisX6b0MhUn1-S/s1600/05.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2X9Wis86BR5TkSkBMaTMwrJNRo-k1G3IVBBmOAo689Mc6rlSUFwkw9r7M1SMucu4xLmzFbAhCrDtsl4oB_JD3VpDzuwPHUrJn0Fs3-NxdrqcV_MkA8dIlyGIKEIhrkWqisX6b0MhUn1-S/s1600/05.gif" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-85559556721522462502014-02-23T07:06:00.003-08:002014-02-23T11:55:02.754-08:00mark keller_05: reading<p>
<i>How do Simulations Know?</i> by Yanni Loukissas<br><br>
"The techie-enabled architect understands every bolt in the building and can see and coordinate the work of every person involved. Dietrich looks forward to the day when he will be able to say, 'I understand what this shape is and how it's built and how pieces go together and I can validate and I can stand up and say this thing will work'" (Loukissas 65).While the promises of the simulation as an architectural tool are broad and significant, simulations encounter several layers of resistance in in the field. <br><br>
Foremost, simulations are questioned for their validity, especially when their results contradict age-old approximate knowledge. Older generations are wary of the inexperienced technician wielding simulation without real-world knowledge to ground the use of the tool. They may point to decreasing field experience of professionals and increasing specialization, but I wonder if these are not symptomatic of larger economic issues, and not a direct argument against the use of simulation. Simulations may also be difficult to comprehend when their results are multiple and at times contradictory. Further, when implementing the process of simulation, it can be difficult to work with contractors in a creative way, asking for their constraints of manufacturing rather than telling them to make a drawing work.<br><br>
Despite these difficulties, it seems to me that the vast majority of reluctant simulation adopters are simply stuck in old notions of rule-of-thumb knowledge and the authority of the generalist. The singular professional generalist is a model almost completely irrelevant in architecture and engineering, where decisions are now made by multiple collaborating specialists. Within this newer framework of operations, rules of thumb are no longer necessary, and simulations may be wielded with confidence, as they are held in check by corresponding specialists with corollary knowledge.
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-68700614254454907492014-02-16T08:03:00.001-08:002014-02-16T08:48:53.256-08:00mark keller_04: collapsing pipe<p>
COLLAPSING PIPE<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-dSW7vV8MtpxZkZUkqyat9NWSg06IQriTc8iPvc2ptbOjZ607rLBXbnDCm5fxbQ45cZACv9GB7PrHhW61i4xXTMqKzxyYK-RJ6s7IpZaligo3nVHX0Im1oTaSLfSLHsd5GszOrgcJinsP/s1600/wire.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj-dSW7vV8MtpxZkZUkqyat9NWSg06IQriTc8iPvc2ptbOjZ607rLBXbnDCm5fxbQ45cZACv9GB7PrHhW61i4xXTMqKzxyYK-RJ6s7IpZaligo3nVHX0Im1oTaSLfSLHsd5GszOrgcJinsP/s1600/wire.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmz_UsRtfGw06rtvzvi8tiOxpsipopEaGRqg_npYUzzRSbxUKQzdMxGE2hsVHE4LLwro3ZfV0BCCihq9jf7QFkpmu_Ech08uW6cL7u0DCpNce10YrdNob1qQtxv7pf3OvmDJX4_kUdNlqF/s1600/solid.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmz_UsRtfGw06rtvzvi8tiOxpsipopEaGRqg_npYUzzRSbxUKQzdMxGE2hsVHE4LLwro3ZfV0BCCihq9jf7QFkpmu_Ech08uW6cL7u0DCpNce10YrdNob1qQtxv7pf3OvmDJX4_kUdNlqF/s1600/solid.jpg" /></a><br><br>
The collapsing pipe utilizes three levels of product models derived from two triangular plane part models and one axial framework part model. As the controlling angle is reduced from 180° to 130°, the planar assembly contracts inward, with each connected element perpetuating the resultant curve. <br><br>
The inspiration for this product model came from a piece of origami called the magic ball:<br><br>
<iframe width="870" height="428" src="//www.youtube.com/embed/VgXwSdJNks8?rel=0&showinfo=0&autohide=1&vq=hd720&" frameborder="0" allowfullscreen></iframe>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVKWC5ID_66289yYrBgjvUwQjxATYvkCj0dWBpGR0IP39Uv7Z6FBCJyELo7G7k77EmP1j22j82xynhhcCEUl7jWkBUmKuVAcB3IMxTBpvmAXpzs9Osz9WNrDnIfnUpFNtSKSBK873jkxjc/s1600/magicball-pattern.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVKWC5ID_66289yYrBgjvUwQjxATYvkCj0dWBpGR0IP39Uv7Z6FBCJyELo7G7k77EmP1j22j82xynhhcCEUl7jWkBUmKuVAcB3IMxTBpvmAXpzs9Osz9WNrDnIfnUpFNtSKSBK873jkxjc/s1600/magicball-pattern.jpg" /></a><br><br>
My attempt at replicating the basic structure and folding action:<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhun9IPasj75Js7R5kIKgDewYM3Y3V1CiLhSYUN1GC5oS68_UNB2b-o4ziBYZfOGx0fkURtLujaltUGeBrWReG2dfaQDU51x6hFlhlfZmBRXdeslcmhYkwnngxfPRA5wjbbJ19VtQiB7cV_/s1600/IMG_0765.JPG" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhun9IPasj75Js7R5kIKgDewYM3Y3V1CiLhSYUN1GC5oS68_UNB2b-o4ziBYZfOGx0fkURtLujaltUGeBrWReG2dfaQDU51x6hFlhlfZmBRXdeslcmhYkwnngxfPRA5wjbbJ19VtQiB7cV_/s1600/IMG_0765.JPG" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjuF0FdeMgyUuOtMckNTVeVDE3kuhyddtBkIqeRTmzweP7RotQB5hxGV4GD3__vsWdWF-JE5X8iD1FxWfbdBfLAygJmSNAn1psdvCcdELZTVsxxs7tD4UghGGwH8Ix4rPv2n8sY4LyJehKq/s1600/IMG_0767.JPG" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjuF0FdeMgyUuOtMckNTVeVDE3kuhyddtBkIqeRTmzweP7RotQB5hxGV4GD3__vsWdWF-JE5X8iD1FxWfbdBfLAygJmSNAn1psdvCcdELZTVsxxs7tD4UghGGwH8Ix4rPv2n8sY4LyJehKq/s1600/IMG_0767.JPG" /></a><br><br>
The first product level is made from a series of triangular parts constrained by the driving angle (shown at 129°), and coincidences to two axial frameworks. These constraints allow the entire product to move relative to the single driving angle. Two more product levels are used to aggregate these products into the final result.<br><br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgw5ugwFWQGyIEqdmbEUI5M7JZ-onUfnU3TyYnnhJX83G_nbNYWY1Rq9LpaWKXVN2xmtkqA8e_ALKYurbjRnG2tJFbzrO32qRy3ytjmn0Ix8GkBSDhQJi4nPrv_tHHylc9T0r10JIBHv0r/s1600/01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgw5ugwFWQGyIEqdmbEUI5M7JZ-onUfnU3TyYnnhJX83G_nbNYWY1Rq9LpaWKXVN2xmtkqA8e_ALKYurbjRnG2tJFbzrO32qRy3ytjmn0Ix8GkBSDhQJi4nPrv_tHHylc9T0r10JIBHv0r/s1600/01.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfhwmxT_kTiNjV5IiPLoqLlkmK28iGYvbA26nDL5LLkBY3fHrBSO29ye7BZdyd77TRFwHqNYAHZru82EcPZqpQB4jX_JIwf5IuAyRILdjT-VLk5OvFkQAfuMEsMTbR899nhov2KgUTyVPj/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfhwmxT_kTiNjV5IiPLoqLlkmK28iGYvbA26nDL5LLkBY3fHrBSO29ye7BZdyd77TRFwHqNYAHZru82EcPZqpQB4jX_JIwf5IuAyRILdjT-VLk5OvFkQAfuMEsMTbR899nhov2KgUTyVPj/s1600/03.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHpgVaqUKwLLKO-1FfWvASTYMNLoYecK9OiC14al7ih9Fa4tYUCtIqfgS7ozMYIYSNqVZoN3VrDNQGxNbAgqwQRX5oW86277v6vH6chfKbejl4lFqJHdX6EbDC84G4vMurbOd5ZSg5bqUD/s1600/04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHpgVaqUKwLLKO-1FfWvASTYMNLoYecK9OiC14al7ih9Fa4tYUCtIqfgS7ozMYIYSNqVZoN3VrDNQGxNbAgqwQRX5oW86277v6vH6chfKbejl4lFqJHdX6EbDC84G4vMurbOd5ZSg5bqUD/s1600/04.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRtuaCpuvnj0NA31GNGHJmwk2_IwGVIRKm_xqjaDd7gRPDl_1QFI6XpDDbJCUjWBqHvIqCo_nWphYwMG6vms-BMA6EZYVCvCFQ42J2LiEW88fL8vmRQQsTdUQMNqb28h5UmO31S7kT9KgG/s1600/wire.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRtuaCpuvnj0NA31GNGHJmwk2_IwGVIRKm_xqjaDd7gRPDl_1QFI6XpDDbJCUjWBqHvIqCo_nWphYwMG6vms-BMA6EZYVCvCFQ42J2LiEW88fL8vmRQQsTdUQMNqb28h5UmO31S7kT9KgG/s1600/wire.jpg" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-78801987884261746692014-02-11T19:13:00.001-08:002014-02-12T06:29:20.117-08:00mark keller_04: reading<p>
<i>Fabricating Architecture: CAD / CAM in the Business of Architecture, Engineering, and Construction</i><br><br>
Digital modeling in architectural design necessitates a collaborative and integrated design process. The success of the digital process may require 'throwing away the rule book' as James Glyph says, but such radically innovative workflows threaten with unforeseen and perhaps deleterious consequences. In my experience working, firms are reluctant to openly share information; they believe that giving out more information to contractors and clients leaves them (the architect) on the hook for the exactitude of that data. When problems arise or when costs are disputed, the less information the designer could have messed up, the less they have to worry about litigation. Of course, these concerns are very much a product of old methodologies of working where distinct professions are contractually bound to distinct aspects of the project; digital design techniques require a transgression of these methodologies. <br><br>
While the Glyph cites design / build as particularly suited to a CAD / CAM workflow, he neglects to mention <a href="http://www.aia.org/groups/aia/documents/pdf/aiab083423.pdf">integrated project delivery</a>—a deployment specifically built around the integration of owner, architect, and contractor with shared risk and shared reward. Often this can be accomplished by creating a temporary legal entity (corporation for example) that encompasses all disparate parties. By establishing a legal framework of collaboration, the benefits of CAD / CAM collaborative workflow are more easily realized by the trepidatious architect.
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-38745744971954092682014-02-09T16:58:00.001-08:002014-02-09T17:10:04.375-08:00mark keller: 03_dancing strandbeest<div class="p2">DANCING STRANDBEEST</div>
<p>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXj7i5wuTHev7yTFcVvRd-AsLMJOQ8It97w-JJL_Cfw7NcIVS0abcsWekapUkPEYzHx719glI5sx-cWTb8DwSoCuBW7ZQ6rXKrcQ9ged3NmwWeTcnhz-A08q8OoxYvKIkrJr1dbUTOLVbO/s1600/treedance_cropped.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXj7i5wuTHev7yTFcVvRd-AsLMJOQ8It97w-JJL_Cfw7NcIVS0abcsWekapUkPEYzHx719glI5sx-cWTb8DwSoCuBW7ZQ6rXKrcQ9ged3NmwWeTcnhz-A08q8OoxYvKIkrJr1dbUTOLVbO/s1600/treedance_cropped.gif" /></a>
The motion of the dancing strandbeest is derived from two rotational movements: one within the part, and one between parts. The internal movement is the same that Theo Jansen utilizes for his strandbeest, with a simplified geometry extracted from the sketch to form the solid leg. The twisting of the solid is controlled to yield a slight concave taper below the bend.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilb7TKBC2fnKbNnwb_s61NIMtujfsqIU_t5H0FE19HzSWLjLjhSfeVopihnTDHiLEwyOLw0WDDpqLUeGu-B6BfH9o4j3xdeMW1wziziymVrewzwj9hI68uMywqGJ4DZh4WHfiVgeG5qcc4/s1600/strandbeest.gif" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEilb7TKBC2fnKbNnwb_s61NIMtujfsqIU_t5H0FE19HzSWLjLjhSfeVopihnTDHiLEwyOLw0WDDpqLUeGu-B6BfH9o4j3xdeMW1wziziymVrewzwj9hI68uMywqGJ4DZh4WHfiVgeG5qcc4/s1600/strandbeest.gif" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD51VOG2cLBNKZF9ni3cKoAsAy52b4OPvaqzRl8rLbUVk5XXFx1-ycR6elr8aoNCRJ8f2wsP8guxHkoDIR_zh8UbdUZPyq2rLegUrZnkzztdIX8-IOc1e4SFX1dP-T76_3wi8gZ3DUU5BW/s1600/04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD51VOG2cLBNKZF9ni3cKoAsAy52b4OPvaqzRl8rLbUVk5XXFx1-ycR6elr8aoNCRJ8f2wsP8guxHkoDIR_zh8UbdUZPyq2rLegUrZnkzztdIX8-IOc1e4SFX1dP-T76_3wi8gZ3DUU5BW/s1600/04.jpg" /></a>
A second part mirrors the single leg and modifies it to generate a bifurcated, differentiated pair of legs. All parts are chamfered at their ends to create a visually piecemeal assembly.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcO50SoNhbeHg7tX3FifD_tp2YaRFmaPiYnJ7Gw4MKiTM8it6B-RMIjLrPLjspepaF1RLk6jyS9pTdeNqZpyO0QfCkZ5sAwtU7-jY1cqjVFuwt5-yJrGcd2VwjmTKM5cBP8yyu5yj_vrJM/s1600/02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgcO50SoNhbeHg7tX3FifD_tp2YaRFmaPiYnJ7Gw4MKiTM8it6B-RMIjLrPLjspepaF1RLk6jyS9pTdeNqZpyO0QfCkZ5sAwtU7-jY1cqjVFuwt5-yJrGcd2VwjmTKM5cBP8yyu5yj_vrJM/s1600/02.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHwm8A0jM-VLeKjju7yeN6jlqsrg6c92dMMjSdIgo6bQaCLrNQNHu6mrHk8To8oHu5nrnmYf3aCzGD81o06uBj4FxGflItLYXy9RrYtpdsZVPc0tBET2JQUkhYw0xr7PvhlcbathRk3aiI/s1600/03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHwm8A0jM-VLeKjju7yeN6jlqsrg6c92dMMjSdIgo6bQaCLrNQNHu6mrHk8To8oHu5nrnmYf3aCzGD81o06uBj4FxGflItLYXy9RrYtpdsZVPc0tBET2JQUkhYw0xr7PvhlcbathRk3aiI/s1600/03.jpg" /></a>
A third part acts as a connector.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiuB0UwhvM2d1AEbM559Z-wz0upKFlxjQimmQGPZgLgPRygCbCWkP-Bijk1Fy8OamiL4TP8V3COqF9mVmdKpZv7ixKu38lTOQfI9K1uQm07VHDe2lkiTZLEL5Ye9jvpOGd1dHD8ukI0mCN7/s1600/01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiuB0UwhvM2d1AEbM559Z-wz0upKFlxjQimmQGPZgLgPRygCbCWkP-Bijk1Fy8OamiL4TP8V3COqF9mVmdKpZv7ixKu38lTOQfI9K1uQm07VHDe2lkiTZLEL5Ye9jvpOGd1dHD8ukI0mCN7/s1600/01.jpg" /></a>
Parts connect together end-to-end via three constraints: contact, coincidence, and angular. The angular constraint is driven by an angle parameter, which is then tied to the "theta" parameter within the bifurcated part. When the bifurcated "theta" = 320°, the angular constraint equals 320°, and the single leg part "theta" is 100° less (220°). The result is a form that does not repeat itself within the first three iterations of theta from 0° to 360°. A new result is created every single frame of the animation, and the looping period has not yet been determined.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_LzGNDy3XTEbamxuYb_d2wBuNGF1ZDYMhg7IqpZfz_heGw9R67PvF3fy1lF-my8JbBed2paWFLitIbsMwRzvsmjzUUxq3B-lU4yFeGfKRifv38k1FFx1aCuXLbjakvRyu8NwolCEvIm95/s1600/05.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_LzGNDy3XTEbamxuYb_d2wBuNGF1ZDYMhg7IqpZfz_heGw9R67PvF3fy1lF-my8JbBed2paWFLitIbsMwRzvsmjzUUxq3B-lU4yFeGfKRifv38k1FFx1aCuXLbjakvRyu8NwolCEvIm95/s1600/05.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQ1Ryi6ccXbCboZk8sa3RM7dPHjU7NjBje_u4rVs_MF2BVI_L5707FD17BfHwcQofnN2b9KSKhGTMlnwjbvj0frqvQdfgp2TcDOBO4DqnvyiU-NDGQ23vOJWkRlqmF9ZNxR_LhAaTO31LD/s1600/06.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQ1Ryi6ccXbCboZk8sa3RM7dPHjU7NjBje_u4rVs_MF2BVI_L5707FD17BfHwcQofnN2b9KSKhGTMlnwjbvj0frqvQdfgp2TcDOBO4DqnvyiU-NDGQ23vOJWkRlqmF9ZNxR_LhAaTO31LD/s1600/06.jpg" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-8082837799484209062014-02-05T16:44:00.001-08:002014-02-05T16:47:14.912-08:00mark keller_03: reading<p>
Michael Weinstock, <i>The Architecture of Emergence</i>.<br><br>
Emergent behavior is an interesting design concept because it relegates the designer to the role of the unknowing tinkerer. That one cannot possibly conceive of the result of an atomic ruleset multiplied over time means that the ruleset itself is unaware of its affects. Simulation tools begin to enable a looping process where the ruleset is created, the emergent properties are observed, and the ruleset is modified based on those observations. But even here we cannot exactly design results, only tinker until the simulation yields a more desirable affect. <br><br>
And that's the point. The designer is no longer encoding a specific outcome, but encoding methods of interactions at the smallest scale. Here, to a large extent, the means justifies the end (if there is an "end"). Furthermore, emergence implies evolution and a temporal behavior; inanimate systems designed in this way place themselves in a world of change and time wherein the system may create completely unexpected results, it may become malignant, or it may cease to exist altogether. As J. Huxley describes, in this evolution, "now and again there is a sudden rapid passage to a totally new and more comprehensive type of order or organisation, with quite new emergent properties, and involving quite new methods of further evolution." In other words, when a system is imbued with the capability for change, the patterns of evolution may be haphazard, radical, and stuttering. If this system displays strong emergence, the designer must truly act as a humble organizer of minutia, capable only to simulate the limited possibilities of future states within the scientific void of variable isolation.
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-38763768379056933442014-02-02T12:51:00.000-08:002014-02-02T14:15:12.090-08:00mark keller_02: pistachio with a door<div class="p2">A PISTACHIO WITH A DOOR IN IT</div>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV80HhPMJ8TirnzGzPLbrptdIDximEzla6U80UkYOyqBFzCqJQpUZiFnN5UPUlFECbU8z7mYVxTuqhrCc7kD8FIDFV_-LtbL2Aidqecq61QUvlE4I-UZlUq2GlOiaLp2B5fOF5ktN1Rk7J/s1600/Scan+1.jpg" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiV80HhPMJ8TirnzGzPLbrptdIDximEzla6U80UkYOyqBFzCqJQpUZiFnN5UPUlFECbU8z7mYVxTuqhrCc7kD8FIDFV_-LtbL2Aidqecq61QUvlE4I-UZlUq2GlOiaLp2B5fOF5ktN1Rk7J/s1600/Scan+1.jpg" /></a>
<br /><p>
The architectural direction is towards an enclosed form that could be rotationally molded using thermoplastics, as shown above. The form must have a planar equator that splits the geometry into two molds, perpendicular to the equator at all points.<br /><br />
The form begins with a 2D sketch of the equator spline and spine.<br />
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqk8VxcjPa2jmMhCyqi5B6hY7Ik1YRjyG8fgSTXVs7C6wXBmIURnARysUC7BlJ43TT5WkPgzDiwn_JfDPa4CfqvWPHfTcpMyNqKdeFv6qOwev4f3vuYbys852AYskCzBVNxA9d9xV8fNGQ/s1600/p01.jpg" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqk8VxcjPa2jmMhCyqi5B6hY7Ik1YRjyG8fgSTXVs7C6wXBmIURnARysUC7BlJ43TT5WkPgzDiwn_JfDPa4CfqvWPHfTcpMyNqKdeFv6qOwev4f3vuYbys852AYskCzBVNxA9d9xV8fNGQ/s1600/p01.jpg" /></a>
Next, the midpoint of the spine is used to generate a sectional spline. The height above and below the equator are functions of equator's area divided by its length. Equators with a higher ratio of area to length will generate taller sections, while equators with a lower ratio will generate shorter sections. The section is tangent to a vertical line when it hits the equator.<br><br> The equator spline must be duplicated and divided into two half-equator splines in a second sketch.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-8Q5T_jbnk6iBYorlXzrTdgCgixDDspRGy30NXZveoISFwGr55vuF6-gf7ipfiE1nB-rz8DMPdZzO-9uAc0hO_3kmxnk3yboXtGSsDm3dDqx-rJag2yCfZYOBbtmaQNybLmsGOovT12e5/s1600/p02.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-8Q5T_jbnk6iBYorlXzrTdgCgixDDspRGy30NXZveoISFwGr55vuF6-gf7ipfiE1nB-rz8DMPdZzO-9uAc0hO_3kmxnk3yboXtGSsDm3dDqx-rJag2yCfZYOBbtmaQNybLmsGOovT12e5/s1600/p02.jpg" /></a>
A multi-section surface is generated by moving the section spline along the two half-equator splines. This surface generation technique sometimes has difficulties with the very ends of the surface.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg1pMw2T_swmCC6eXT2qY37oX7x_JhlxbcA9d5H76h_-AuHOAVr0YjW4LSq1jFg9E6PxQsI_pjCtrfB9ukBgbYWY81sE7Jq3AsOlsVF4udb9_CfEDh45pLRvnat6YIdHu9gCB1WnXsfJSbd/s1600/p03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg1pMw2T_swmCC6eXT2qY37oX7x_JhlxbcA9d5H76h_-AuHOAVr0YjW4LSq1jFg9E6PxQsI_pjCtrfB9ukBgbYWY81sE7Jq3AsOlsVF4udb9_CfEDh45pLRvnat6YIdHu9gCB1WnXsfJSbd/s1600/p03.jpg" /></a>
The surface is split along the equator. A new sketch is placed on the plane tangent to the surface at the apex of the section spline.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyrMZInoVWIWKXyUYQugI974ibaK__8MbaCYlDWBfz_B8zYY2gzs8LkpP34AIs7DMuiuQBXpUka-3R4V3wuReggPOi5C1bxxPgLboLCLIA2udBHoIn-Hg4-4h2evXlzny0Xh0rWqCPeSMF/s1600/p04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyrMZInoVWIWKXyUYQugI974ibaK__8MbaCYlDWBfz_B8zYY2gzs8LkpP34AIs7DMuiuQBXpUka-3R4V3wuReggPOi5C1bxxPgLboLCLIA2udBHoIn-Hg4-4h2evXlzny0Xh0rWqCPeSMF/s1600/p04.jpg" /></a>
A door geometry is sketched and constrained to the orientation of the spine.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJjzKy7L9QFbS0kXosr0I6yO_ch7_wFY1nvOBVXnhDGv8HNp4Un60_E2yzYcMbY_KN-Fmwtmvqy4Ot2xreM3Dq9X61a339c8lFFN8gHzqRTD85Heaf2glDW-H8HQwWoRdceptVKvXO4NPD/s1600/p05.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJjzKy7L9QFbS0kXosr0I6yO_ch7_wFY1nvOBVXnhDGv8HNp4Un60_E2yzYcMbY_KN-Fmwtmvqy4Ot2xreM3Dq9X61a339c8lFFN8gHzqRTD85Heaf2glDW-H8HQwWoRdceptVKvXO4NPD/s1600/p05.jpg" /></a>
The door is extruded.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHvVX2F_Z8ymHy_CmrjKSRmo_JXKCzedL20uNWKKx5zNf886sVnFiYgigwIBSGWi4Po1ZPiaeLW1xphkOgdrflNIwgFwo0TP3lMFEnyitWFI_tNSVdSzxSr2DTUHg-G5PX8sKdGD2qmaAV/s1600/p06.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHvVX2F_Z8ymHy_CmrjKSRmo_JXKCzedL20uNWKKx5zNf886sVnFiYgigwIBSGWi4Po1ZPiaeLW1xphkOgdrflNIwgFwo0TP3lMFEnyitWFI_tNSVdSzxSr2DTUHg-G5PX8sKdGD2qmaAV/s1600/p06.jpg" /></a>
The two surfaces are then trimmed. A planar surface is offset from the equator is added to both halves to indicate the form edge. <br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDFAPm-nB3zz3J8geNXbBQigsweEI5vhIjbbICtlCOR-RRsZdDlCDcQOCzeHxW4ldfUnLMQwte0k0fL9izIkqnWOXLo3tuvDO3hn-9j_KG0ZMD7-_n0rYZEa_Bs5QtwHNyAZQMUOaYZca9/s1600/p07.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgDFAPm-nB3zz3J8geNXbBQigsweEI5vhIjbbICtlCOR-RRsZdDlCDcQOCzeHxW4ldfUnLMQwte0k0fL9izIkqnWOXLo3tuvDO3hn-9j_KG0ZMD7-_n0rYZEa_Bs5QtwHNyAZQMUOaYZca9/s1600/p07.jpg" /></a>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimZn8l0L0Pu6FmYOF1Ypn-Ot7HM1vBy1FI31XzPhW8QE0CMMbB6hpsPQWQ66o9PB1yA6d68EKntQnzV3TqDLHcjuJBZ6GSayKZCUBkhJa1fuQIIES08wydXMYaKs4EM3StzvMG79smPdka/s1600/p08.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimZn8l0L0Pu6FmYOF1Ypn-Ot7HM1vBy1FI31XzPhW8QE0CMMbB6hpsPQWQ66o9PB1yA6d68EKntQnzV3TqDLHcjuJBZ6GSayKZCUBkhJa1fuQIIES08wydXMYaKs4EM3StzvMG79smPdka/s1600/p08.jpg" /></a>
Wild variations may break the model in different ways. Sometimes the method of generating the multi-section surface cannot handle the equator profile. In other cases, the door extrusion matches the surface in unexpected ways. It was very difficult to manage the behavior of the split equator profiles, as they would frequently break or reverse, resulting in only three points for the section spline.<br>
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvWVw-SijmWgdMebq0eB8myzoEX4rG-INAhkkMwSlzoJPaDtmMKqgO08-pjZZXBnNvcNjvSZHQzRlkf_pXCQQ1u_DBoUwpfYU-uqJ_yqPCfm3gn-vjBDDi2beri4Al9wxPBDUaN0R2zftG/s1600/a01.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvWVw-SijmWgdMebq0eB8myzoEX4rG-INAhkkMwSlzoJPaDtmMKqgO08-pjZZXBnNvcNjvSZHQzRlkf_pXCQQ1u_DBoUwpfYU-uqJ_yqPCfm3gn-vjBDDi2beri4Al9wxPBDUaN0R2zftG/s1600/a01.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjmus_HRKGt9FoP3TNIkWNuSHTQW69KaMUTzW9eIn_dKt4XEiOC444XMbXURxrcXUpNfq2IfvFIyHuoV6x65lsR3VmfaxaCRw7kkNsEUgOl7_NhwCKKxHw49vbSiNDPAlPQL7-slxeNWPM/s1600/a03.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjjmus_HRKGt9FoP3TNIkWNuSHTQW69KaMUTzW9eIn_dKt4XEiOC444XMbXURxrcXUpNfq2IfvFIyHuoV6x65lsR3VmfaxaCRw7kkNsEUgOl7_NhwCKKxHw49vbSiNDPAlPQL7-slxeNWPM/s1600/a03.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgscfe1o2xA3gmf677RthVwS2Pfs07IkRdQeeoDUP0Jg-oPcZkYP4Umg1THKy-rGNikwQ2XEXgHhgni15CzmZtIKuhZTOP05JMLhxHvEPJLfl-gDZ4olfe6MwhYmcZUYS3gB-12X1V-OIFN/s1600/a04.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgscfe1o2xA3gmf677RthVwS2Pfs07IkRdQeeoDUP0Jg-oPcZkYP4Umg1THKy-rGNikwQ2XEXgHhgni15CzmZtIKuhZTOP05JMLhxHvEPJLfl-gDZ4olfe6MwhYmcZUYS3gB-12X1V-OIFN/s1600/a04.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5CVeZbV_G-juerRUeFHU6xx8IJHxX4i9Ml4gqhZDJ1mVogRLkaTDqEDM4f8RDoTeExj-gkolFUrHf4vTvVexbBVO94sKsQrSP61mLTboeRd5BsFfZ6jz-hy88y8eMb1-hh_3T7nm_D0k-/s1600/a05.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5CVeZbV_G-juerRUeFHU6xx8IJHxX4i9Ml4gqhZDJ1mVogRLkaTDqEDM4f8RDoTeExj-gkolFUrHf4vTvVexbBVO94sKsQrSP61mLTboeRd5BsFfZ6jz-hy88y8eMb1-hh_3T7nm_D0k-/s1600/a05.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEirvDphRrNR6yVN1zk-LLahvfe6Qn8T4qeFwyp86zfefVQUu_7X45wll54Odd0-tNzyAFkePo7oTU_G5En1rCRjq3tQv1LdEhFb1mQx63muQSxH1Qhu06vphmxqAMS_QVcfO6h1ntOJmHlT/s1600/a06.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEirvDphRrNR6yVN1zk-LLahvfe6Qn8T4qeFwyp86zfefVQUu_7X45wll54Odd0-tNzyAFkePo7oTU_G5En1rCRjq3tQv1LdEhFb1mQx63muQSxH1Qhu06vphmxqAMS_QVcfO6h1ntOJmHlT/s1600/a06.jpg" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhoWgRdQSSK0Yq0jWuc9ukTgA6bcoePyb5FtBr7cH7h9BuyMJ7QJMj5mTylWsemLCANO9S7A55snh3582rTa0-AhCgIR0PRdpc8WTa2U38-bdeZfxb5P5mwTEDL2nEcx4EA5VYv3PI2avwH/s1600/a07.jpg" imageanchor="1" ><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhoWgRdQSSK0Yq0jWuc9ukTgA6bcoePyb5FtBr7cH7h9BuyMJ7QJMj5mTylWsemLCANO9S7A55snh3582rTa0-AhCgIR0PRdpc8WTa2U38-bdeZfxb5P5mwTEDL2nEcx4EA5VYv3PI2avwH/s1600/a07.jpg" /></a>
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-50304644867489674102014-01-27T20:32:00.001-08:002014-01-27T20:40:58.860-08:00mark keller_02: reading<p>
While many of the properties of surface modeling were already familiar to me, the reading from <i>Digital Design Manufacturing</i> by Daniel Schodek did an excellent job at covering the basics of various digital modeling techniques. The distinctions between parametric design, dimensionally-driven design, design constraints, and parent-child relationships are seemingly subtle at times, but important definitions that I had not previously encountered. The discussed workflow of making late-game changes to parent features that affect several base features raises the question: at what point is the time saved in making these changes greater than the time expended to establish the parent-child relationships in the first place?<br /><br />
Conceptually, I understand the power of establishing such relationships and making changes within the rule set initially conceived; however, when the changes include modifications to that rule set, there are often unforeseen implications to children which compound in complexity with each level of dependency. In my experience, it is not uncommon to make such rule-based changes to the parent, and find that the children essentially break as a result, and all the initial work of establishing the rule set must be redone. Schodek addresses this briefly in the introduction to Chapter 11 with the caveat that programs like CATIA are intended for design development, not conceptual design, wherein the designer will have fairly defined preconceptions of the intended output, and therefore will be able to forecast necessary rule sets for parent features. This ability might also just come with experience using the software and understanding how to develop robust parent-child relationships.<br /><br />
Schodek also touches on finite-element analysis as a method to test digital models using simulated real-world stresses. I enjoyed the disclaimer that such tools are powerful, but not to be trifled with by those without the proper knowledge of structural behavior. Given that the user is knowledgeable, it seems that this facet of digital modeling is paramount to its ability to translate to a successful fabricated product, and allows the designer to remove much of the process of analysis from the physical realm thereby greatly streamlining the feedback loop.
</p>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-44862835049208834032014-01-27T17:21:00.000-08:002014-01-27T19:04:21.942-08:00mark keller_youtube video embed tips<div class="p2">
You might be wondering how to embed a Youtube video to your post and make it loop. Here's how:<br/><br/>
1. Upload a video to Youtube.<br/><br/>
2. Go to that video, and click on "share" > "embed." Uncheck "show suggested videos when the video finishes" and choose the video size you want.<br/><br/>
3. Copy the embed code. It should be something like<br/><br/>
<iframe width="640" height="480" src="//www.youtube.com/embed/lPgh67TtdbA?rel=0" frameborder="0" allowfullscreen></iframe><br/><br/>
4. Insert this code into your Blogger post. Do not use Blogger's button to insert a video, because it will not use the right code format.<br/><br/>
5. Now, tweak the code by adding "&amp;showinfo=0&amp;autohide=1&amp;vq=hd720&amp;autoplay=1&amp;loop=1&amp;playlist=lPgh67TtdbA" after "rel=0" giving you an embed code of something like:<br/><br/>
<iframe width="640" height="480" src="//www.youtube.com/embed/lPgh67TtdbA?rel=0&amp;showinfo=0&amp;autohide=1&amp;vq=hd720&amp;autoplay=1&amp;loop=1&amp;playlist=lPgh67TtdbA" frameborder="0" allowfullscreen></iframe><br/><br/>
Of course, you will have to change the playlist ID to your video's ID number, not mine.<br/><br/>
6. You can use<a href="http://www.vtubetools.com/"> this website</a> to further explore the custom embed settings.</div>Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-74114190584365937362014-01-25T17:18:00.000-08:002014-01-27T18:43:48.895-08:00mark keller_01: reading<p>"...the latest version of the building was not just designed in AutoCAD, it was designed for AutoCAD." (Loukissas 164)<br />
<br />
When a new tool emerges, it allows different methods of production that may generate ways of thinking or formal strategies previously unimagined. AutoCAD functions largely a digitized version of the ancient tools of compass, straightedge, and square. Although speed of production is greatly affected, the geometries possible within the domain of the program are similar to those possible etching marble by hand. A building designed for AutoCAD is probably radically different than a building designed for CATIA, whose domain ingrains design by constraint and parameter rather than by static spatial definition. When the designer no longer spends time tweaking lines, but setting rules and mediating the myriad generated iterations, the design is produced through a radically different process of thought and response.
<br /><br/>
Yanni Loukissas reveals generational disparities between the ability of master and apprentice to handle changing architectural technology in <i>Keepers of the Geometry. </i>In one studied firm, Paul Morris Associates, the principal rarely works with technology directly, and relies on apprentice Drew Thorndike to negotiate designs with the digital interface. Once designs are within the digital, Thorndike must then print them out for Morris to make revisions via trace paper. I see this process as typical of the transitional strategies older firms employ to keep themselves relevant; however, by not committing fully to using the medium by which his designs are developed, Morris is missing the mark. The lowest common denominator determines the agility and performance of the design, which in this case might be the manual recitation by trace and by Morris' intentional distance from the digital realm. This distance does not lessen over time, but Morris does begin to give more authority to the capabilities of the program, thereby losing "some of the physical intimacy he has with pencil drawings." The evolved method of working involves Morris standing behind Thorndike as the apprentice drives the computer program<span style="background-color: white; color: #444444; font-family: arial, sans-serif; font-size: x-small; line-height: 16.1200008392334px;">—</span>perhaps a more direct feedback loop, but nonetheless still one which is not fully invested in the logic and capabilities of the software.
<br /><br/>
My experience has been largely shaped by workflows similar to the one described above, and has indicated to me two things. One, not all firms require or desire a fully intimate relationship with the software they use, and perhaps are more efficient in their design process when the software is tapped in a very limited way. Two, those firms that wish to fully capitalize on the emerging capabilities of digital design tools must not take a transitional stance, and must have design leaders who understand the inner workings of the software itself.</p>
Anonymoushttp://www.blogger.com/profile/08461518449224176807noreply@blogger.comtag:blogger.com,1999:blog-5145555225810100153.post-25981685668706205512014-01-25T13:26:00.000-08:002014-01-27T17:41:45.965-08:00mark keller_01: dynamic diagram<div class="separator" style="clear: both; text-align: center;">
<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div>
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<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">The dynamic diagram is derived from <span style="background-color: white; line-height: 19.200000762939453px;">Chiesa di Sant'Ivo alla Sapienza</span><span style="background-color: white; line-height: 19.200000762939453px;">, a Baroque Roman Catholic church designed by Francesco Borromini. Completed in 1660, Sant'Ivo features a rotunda comprised of distinct geometries that crash into each other at sharp intersections; the resulting form contrasts Borromini's the more blended geometries of San Carlino.</span></span></div>
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<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">The relational geometry is primarily constrained by four independent radii shown above. By manipulating these variables, new arrangements can be created that are logically consistent with the relational rules of the plan, but which yield radically different spaces.</span></div>
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<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Wild geometric derivations include:</span></div>
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<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">The code doing all the work:</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoV9bCALmWeQ_EEMXfaHfXrtDe30LyRr4L8PXPXJPVzZD5bQqcsVg3iLAthkj9jy5up2U_Z_xNErUC2XM74zo30DhS0HiJq9Q2Ux_2b3KRaGEEUECwk_Sh0ZXxO5xzI6aq5FIzNqc7i-O5/s1600/04.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgoV9bCALmWeQ_EEMXfaHfXrtDe30LyRr4L8PXPXJPVzZD5bQqcsVg3iLAthkj9jy5up2U_Z_xNErUC2XM74zo30DhS0HiJq9Q2Ux_2b3KRaGEEUECwk_Sh0ZXxO5xzI6aq5FIzNqc7i-O5/s1600/04.jpg" /></a></div>
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<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">References: </span></div>
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<span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Tedeschini, Lora.<i> The Floor Plan of Sant'Ivo by Borromini. </i>Web. <<a href="http://scienar.unical.it/network/paper/Tedeschini.pdf">http://scienar.unical.it/network/paper/Tedeschini.pdf</a>>.</span></div>
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