Erick Katzenstein's Videos (Grasshopper) - Grasshopper 2019-11-18T08:20:59Z https://www.grasshopper3d.com/video/video/listForContributor?screenName=1m3l3krbi8ru4&rss=yes&xn_auth=no Assembly with Quaternions tag:www.grasshopper3d.com,2015-06-10:2985220:Video:1306736 2015-06-10T01:24:58.098Z Erick Katzenstein https://www.grasshopper3d.com/profile/ErickKatzenstein <a href="https://www.grasshopper3d.com/video/assembly-with-quaternions"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778191497?profile=original&amp;width=240&amp;height=135" width="240" height="135" alt="Thumbnail" /><br /> </a><br />Interpolating quaternions with slerping for assembly. More details here: <a href="http://www.manuscript.nyc/2015/06/interpolating-quaternions/">http://manuscript.nyc/2015/06/interpolating-quaternions/</a> <a href="https://www.grasshopper3d.com/video/assembly-with-quaternions"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778191497?profile=original&amp;width=240&amp;height=135" width="240" height="135" alt="Thumbnail" /><br /> </a><br />Interpolating quaternions with slerping for assembly. More details here: <a href="http://www.manuscript.nyc/2015/06/interpolating-quaternions/">http://manuscript.nyc/2015/06/interpolating-quaternions/</a> Interpolating Quaternions tag:www.grasshopper3d.com,2015-06-10:2985220:Video:1306490 2015-06-10T01:21:01.627Z Erick Katzenstein https://www.grasshopper3d.com/profile/ErickKatzenstein <a href="https://www.grasshopper3d.com/video/interpolating-quaternions"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778196515?profile=original&amp;width=240&amp;height=135" width="240" height="135" alt="Thumbnail" /><br /> </a><br />Interpolating quaternions with slerping. Adding a 't' to the Orient battery. More details here: <a href="http://www.manuscript.nyc/2015/06/interpolating-quaternions/">http://www.manuscript.nyc/2015/06/interpolating-quaternions/</a> <a href="https://www.grasshopper3d.com/video/interpolating-quaternions"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778196515?profile=original&amp;width=240&amp;height=135" width="240" height="135" alt="Thumbnail" /><br /> </a><br />Interpolating quaternions with slerping. Adding a 't' to the Orient battery. More details here: <a href="http://www.manuscript.nyc/2015/06/interpolating-quaternions/">http://www.manuscript.nyc/2015/06/interpolating-quaternions/</a> Shrink Wrap with Grasshopper and Kangaroo tag:www.grasshopper3d.com,2011-10-25:2985220:Video:460820 2011-10-25T13:43:11.520Z Erick Katzenstein https://www.grasshopper3d.com/profile/ErickKatzenstein <a href="https://www.grasshopper3d.com/video/shrink-wrap-with-grasshopper-and-kangaroo"><br /> <img alt="Thumbnail" height="150" src="https://storage.ning.com/topology/rest/1.0/file/get/2778162643?profile=original&amp;width=240&amp;height=150" width="240"></img><br /> </a> <br></br>This definition approximates a shrink wrap for generic brep geometry.<br></br> <br></br> There are two steps:<br></br> <br></br> The first step creates a mesh from a bounding box and drags each vertex to the closest point on the brep. Andrew Heumann offered a similar definition back in December (… <a href="https://www.grasshopper3d.com/video/shrink-wrap-with-grasshopper-and-kangaroo"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778162643?profile=original&amp;width=240&amp;height=150" width="240" height="150" alt="Thumbnail" /><br /> </a><br />This definition approximates a shrink wrap for generic brep geometry.<br /> <br /> There are two steps:<br /> <br /> The first step creates a mesh from a bounding box and drags each vertex to the closest point on the brep. Andrew Heumann offered a similar definition back in December (<a href="http://www.grasshopper3d.com/video/shrinkwrap-with-grasshopper?xg_source=activity">http://www.grasshopper3d.com/video/shrinkwrap-with-grasshopper?xg_source=activity</a>)<br /> <br /> The second step takes the original vertices of the mesh and treats them as anchor points (since they are now 'attached' to the geometry). The mesh is then triangulated and subdivided and a negative pressure is placed on the new faces with Kangaroo.<br /> <br /> We wanted to test the definition on complex geometry. The base geometry is a random structure produced with Rhinoscript.<br /> <br /> Collaboration with Jon Bailey (<a href="http://archimorph.wordpress.com/">http://archimorph.wordpress.com/</a>) Parking Generator tag:www.grasshopper3d.com,2011-10-02:2985220:Video:442512 2011-10-02T20:40:42.057Z Erick Katzenstein https://www.grasshopper3d.com/profile/ErickKatzenstein <a href="https://www.grasshopper3d.com/video/parking-generator-with-grasshopper"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778162914?profile=original&amp;width=240&amp;height=150" width="240" height="150" alt="Thumbnail" /><br /> </a><br />Had some tedious work drawing parking spaces. This creates parking lots from closed perimeters curves. Still in development.<br /> <br /> Thanks to Giulio Piacentino for his bake attributes script. <a href="https://www.grasshopper3d.com/video/parking-generator-with-grasshopper"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778162914?profile=original&amp;width=240&amp;height=150" width="240" height="150" alt="Thumbnail" /><br /> </a><br />Had some tedious work drawing parking spaces. This creates parking lots from closed perimeters curves. Still in development.<br /> <br /> Thanks to Giulio Piacentino for his bake attributes script. Geco with PV Panels (+Centipede) tag:www.grasshopper3d.com,2011-08-04:2985220:Video:352966 2011-08-04T18:52:21.544Z Erick Katzenstein https://www.grasshopper3d.com/profile/ErickKatzenstein <a href="https://www.grasshopper3d.com/video/geco-with-pv-panels-centipede-1"><br /> <img alt="Thumbnail" height="135" src="https://storage.ning.com/topology/rest/1.0/file/get/2778161628?profile=original&amp;width=240&amp;height=135" width="240"></img><br /> </a> <br></br>This grasshopper definition uses the GECO plugin to extract the quantitative values of solar exposure for roof panels during the year in Dallas, Texas.<br></br> <br></br> The hottest spots on the roof are selected to array photovoltaic panels. The number of photovoltaic panels is defined by the target energy intensity offset (kWh/sf/yr). This gives us two parameters for PV panels:… <a href="https://www.grasshopper3d.com/video/geco-with-pv-panels-centipede-1"><br /> <img src="https://storage.ning.com/topology/rest/1.0/file/get/2778161628?profile=original&amp;width=240&amp;height=135" width="240" height="135" alt="Thumbnail" /><br /> </a><br />This grasshopper definition uses the GECO plugin to extract the quantitative values of solar exposure for roof panels during the year in Dallas, Texas.<br /> <br /> The hottest spots on the roof are selected to array photovoltaic panels. The number of photovoltaic panels is defined by the target energy intensity offset (kWh/sf/yr). This gives us two parameters for PV panels: the gross sf of the building and the solar exposure.<br /> <br /> The PV panels chosen are then arrayed by a base PV component (box morph). Remaining panels are arrayed with a glass skin component. Geometry is immediately modeled based on environmental data.<br /> <br /> The results are then exported to 3ds Max with Centipede. Some low-res animations are included in this video. The first animation shows the PV panels changing based on form. The following two represent a ribbon scheme (solar shading), and an aperture scheme (solar mass/fenestration).