All Discussions Tagged 'Mesh' - Grasshopper2024-03-29T09:12:32Zhttps://www.grasshopper3d.com/group/kangaroo/forum/topic/listForTag?tag=Mesh&feed=yes&xn_auth=noPoint Mesh (Unclosed) collisiontag:www.grasshopper3d.com,2017-06-18:2985220:Topic:17710212017-06-18T18:19:47.423ZAddinhttps://www.grasshopper3d.com/profile/Addin
<p>I just came across this theoretical question while playing with the chain collision.</p>
<p>I found that there is not a Collision between surface & points, only solid. In almost all the examples/videos i have seen so far, people tend to use a flat box to represent a collision surface. When I tried to make a thin extrusion of a surface to trick the effect, it doesn't work unless I make it pretty thick. I don't understand. How does the thickness take part in the computation of collision?…</p>
<p>I just came across this theoretical question while playing with the chain collision.</p>
<p>I found that there is not a Collision between surface & points, only solid. In almost all the examples/videos i have seen so far, people tend to use a flat box to represent a collision surface. When I tried to make a thin extrusion of a surface to trick the effect, it doesn't work unless I make it pretty thick. I don't understand. How does the thickness take part in the computation of collision? Shouldn't it be irrelevant?</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2655044743?profile=original" target="_self"><img width="400" src="http://storage.ning.com/topology/rest/1.0/file/get/2655044743?profile=RESIZE_480x480" width="400" class="align-full"/></a></p>
<p>Since Kangaroo is computing everything by vertices, why do we have to build geometries solid? Is there a way to build a customized goal to collide open surface/mesh with points?</p> Inflatingtag:www.grasshopper3d.com,2017-06-03:2985220:Topic:17627562017-06-03T11:48:09.419ZNicolashttps://www.grasshopper3d.com/profile/Nicolas370
<p>Hi Everyone I'm starting to use Kangaroo2</p>
<p></p>
<p>It is amazing and super intuitive.</p>
<p></p>
<p>I'm trying to replicate things that are done in kangaroo 1.</p>
<p></p>
<p>It works like a charm.</p>
<p></p>
<p>I'm just having trouble understanding something</p>
<p></p>
<p>I'm trying to inflate a sphere inside a box, and it behaves in a weird manner.</p>
<p></p>
<p>When I apply pressure it moves upwards, even though it should stay still. since the pressures should pull equally in…</p>
<p>Hi Everyone I'm starting to use Kangaroo2</p>
<p></p>
<p>It is amazing and super intuitive.</p>
<p></p>
<p>I'm trying to replicate things that are done in kangaroo 1.</p>
<p></p>
<p>It works like a charm.</p>
<p></p>
<p>I'm just having trouble understanding something</p>
<p></p>
<p>I'm trying to inflate a sphere inside a box, and it behaves in a weird manner.</p>
<p></p>
<p>When I apply pressure it moves upwards, even though it should stay still. since the pressures should pull equally in opposing directions. Then when it reached the boundary of the cage it just starts spinning out of control.</p>
<p></p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2655046094?profile=original" target="_self"><img width="750" src="http://storage.ning.com/topology/rest/1.0/file/get/2655046094?profile=RESIZE_1024x1024" width="750" class="align-full"/></a> </p>
<p></p>
<p>In the inflation plus collision examples from kangaroo 1, the mesh was more stable when colliding.</p>
<p></p>
<p>I attach the file, any help would be much appreciated.</p>
<p></p>
<p>Thank in advance, and thanks Daniel for such an amazing plug in</p> Quad mesh for a 3D surfacetag:www.grasshopper3d.com,2014-04-17:2985220:Topic:10466122014-04-17T20:52:33.354ZThomas TRINELLEhttps://www.grasshopper3d.com/profile/ThomasTRINELLE
<p>Hi everyone,</p>
<p>I have been reading a lot of discussions on meshing surfaces, papers on different meshing techniques (based on curvatures, relaxation, morphing). I'm quite filled with theories and I think I get the big pictue now. Though, I couldn't get to solve my meshing issue !</p>
<p>It may be a stupid question, but I've been stuck on this the whole day.</p>
<p>I'm trying to mesh a specific patch surface. The mesh needs to be defined adequatly because I'll be using it for…</p>
<p>Hi everyone,</p>
<p>I have been reading a lot of discussions on meshing surfaces, papers on different meshing techniques (based on curvatures, relaxation, morphing). I'm quite filled with theories and I think I get the big pictue now. Though, I couldn't get to solve my meshing issue !</p>
<p>It may be a stupid question, but I've been stuck on this the whole day.</p>
<p>I'm trying to mesh a specific patch surface. The mesh needs to be defined adequatly because I'll be using it for form-finding using dynamic relaxation in order to supress the bending moments in my final structure (cf Heinz Isler's work).</p>
<p>Through my readings and Daniel's amazing research, my best guess would be to "wrap" a basic rectangular mesh on my 3D surface or to try some conformalization methods (<a href="http://vimeo.com/18269637">http://vimeo.com/18269637</a>).</p>
<p>Still being quite new in GH I can't manage to make it work. So there's the simple question : can you help me making a proper mesh (quads would be best) out of a 3D non regular surface ?</p>
<p>Here's attached the GH shape definition.</p>
<p>Thanks, a lot, in advance</p>
<p>Thomas</p>
<p> <a href="http://storage.ning.com/topology/rest/1.0/file/get/2654854014?profile=original" target="_self">PatchSurfaceDef.gh</a></p> Help with Panelization Forcestag:www.grasshopper3d.com,2013-05-13:2985220:Topic:8521512013-05-13T17:53:43.248ZNicholas Cecchihttps://www.grasshopper3d.com/profile/NicholasCecchi
<p>Daniel,</p>
<p>First off, thanks for the excellent tool.</p>
<p></p>
<p>I am trying to apply some planarization forces to a mesh to get the majority of quads planar, then taking whatever is leftover and splitting it into triangles. I am having trouble getting the Kangaroo Physics component to work with the planarization forces and was hoping someone could take a look at my definition to see where I am making a mistake.</p>
<p></p>
<p>Thanks,</p>
<p>Nick</p>
<p>Daniel,</p>
<p>First off, thanks for the excellent tool.</p>
<p></p>
<p>I am trying to apply some planarization forces to a mesh to get the majority of quads planar, then taking whatever is leftover and splitting it into triangles. I am having trouble getting the Kangaroo Physics component to work with the planarization forces and was hoping someone could take a look at my definition to see where I am making a mistake.</p>
<p></p>
<p>Thanks,</p>
<p>Nick</p>