Need Help - Don't know what to call this... - Grasshopper2024-03-29T09:19:03Zhttps://www.grasshopper3d.com/forum/topics/need-help-don-t-know-what-to-call-this?commentId=2985220%3AComment%3A1211024&feed=yes&xn_auth=noI think it looks amazing... p…tag:www.grasshopper3d.com,2015-01-25:2985220:Comment:12109812015-01-25T03:02:04.099ZBrad Bakerhttps://www.grasshopper3d.com/profile/BBaker
<p>I think it looks amazing... pretty much exactly what I was trying to make!</p>
<p>I think it looks amazing... pretty much exactly what I was trying to make!</p> I can't believe noone has sai…tag:www.grasshopper3d.com,2015-01-25:2985220:Comment:12108822015-01-25T00:03:44.432ZPieter Segerenhttps://www.grasshopper3d.com/profile/Pieter
<p>I can't believe noone has said anything about the nasty surface I created there (zoom in on a ridge intersection... ~ D#h). I was going to report back here with a valid polysurface, but didn't get around to fix the issue(s) yet. But I wasn't going to leave it at that. ;)</p>
<p>I can't believe noone has said anything about the nasty surface I created there (zoom in on a ridge intersection... ~ D#h). I was going to report back here with a valid polysurface, but didn't get around to fix the issue(s) yet. But I wasn't going to leave it at that. ;)</p> Pieter -
Thank you for your i…tag:www.grasshopper3d.com,2015-01-24:2985220:Comment:12110242015-01-24T23:27:57.650ZBrad Bakerhttps://www.grasshopper3d.com/profile/BBaker
<p>Pieter -</p>
<p>Thank you for your input... I've been playing with your .gh file and I think this is my best route. What issue that I'm having is, I believe, how you are defining the edge and the ridges. When I create my own edge or bounding box and then create my ridges and apply your grasshopper script, everything is ok except for the upper "Network Surface" that connects to the "join"... I get an error on this that reads "At least Two Curves are needed in the U…</p>
<p>Pieter -</p>
<p>Thank you for your input... I've been playing with your .gh file and I think this is my best route. What issue that I'm having is, I believe, how you are defining the edge and the ridges. When I create my own edge or bounding box and then create my ridges and apply your grasshopper script, everything is ok except for the upper "Network Surface" that connects to the "join"... I get an error on this that reads "At least Two Curves are needed in the U direction"</p>
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<p>I'm not sure what the U direction is or how to implement this. Would you mind sharing with me the Rhino file that you used with the grasshopper script? I think that would help me understand how you pieced this all together.</p>
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<p>Thank you!</p>
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<p>-Brad</p> Ehm, I just noticed my inters…tag:www.grasshopper3d.com,2015-01-22:2985220:Comment:12095362015-01-22T22:30:46.764ZPieter Segerenhttps://www.grasshopper3d.com/profile/Pieter
<p>Ehm, I just noticed my intersection counting was wrong (another Doh!-moment) ~ I had 1 or 3 intersections in the file, sorry. <br/>Still, I hope you understood my train/chain of thoughts in the file anyway.</p>
<p>Ehm, I just noticed my intersection counting was wrong (another Doh!-moment) ~ I had 1 or 3 intersections in the file, sorry. <br/>Still, I hope you understood my train/chain of thoughts in the file anyway.</p> Hi BBaker, here is my attempt…tag:www.grasshopper3d.com,2015-01-22:2985220:Comment:12093192015-01-22T16:03:57.700ZPieter Segerenhttps://www.grasshopper3d.com/profile/Pieter
<p>Hi BBaker, <br></br>here is my attempt at creating surfaces from the curves in David's file. <br></br>There's some editing needed if you have more than one intersection in the ridges, but I've added also something to make it work when there are two intersections. Needs some more work but I hope you can edit the definition to fit your needs.…<br></br><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768951604?profile=original" target="_self"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/2768951604?profile=original" width="586"></img></a></p>
<p>Hi BBaker, <br/>here is my attempt at creating surfaces from the curves in David's file. <br/>There's some editing needed if you have more than one intersection in the ridges, but I've added also something to make it work when there are two intersections. Needs some more work but I hope you can edit the definition to fit your needs.<br/><a target="_self" href="http://storage.ning.com/topology/rest/1.0/file/get/2768951604?profile=original"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/2768951604?profile=original" width="586"/></a></p> All -
Thank you, Thank you!…tag:www.grasshopper3d.com,2015-01-22:2985220:Comment:12092462015-01-22T15:32:11.626ZBrad Bakerhttps://www.grasshopper3d.com/profile/BBaker
<p>All -</p>
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<p>Thank you, Thank you! These are great solutions and as I expected... there are multiple ways to do this. I really appreciate all the feedback and solutions that you guys came up with and took the time to illustrate. I hope in the future I can start contributing and helping others as you have done here.</p>
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<p>I think it is ok if I do not form the perfect "ridge", I plan on generating these profile/section cuts and putting them into autocad or something similar…</p>
<p>All -</p>
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<p>Thank you, Thank you! These are great solutions and as I expected... there are multiple ways to do this. I really appreciate all the feedback and solutions that you guys came up with and took the time to illustrate. I hope in the future I can start contributing and helping others as you have done here.</p>
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<p>I think it is ok if I do not form the perfect "ridge", I plan on generating these profile/section cuts and putting them into autocad or something similar to refine the linework. I may also create this by hand, which would mean I only need a guide and can form the point myself.</p>
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<p>So, thank you all again! This is great, very excited to be part of this community!</p> Little embarrassed to put my…tag:www.grasshopper3d.com,2015-01-22:2985220:Comment:12091442015-01-22T10:28:45.206ZDarrell Plankhttps://www.grasshopper3d.com/profile/DarrellPlank
<p>Little embarrassed to put my monstrosity up after David's predictably elegant one. This problem caused me much soul searching in the ways of trees and I think I understand them better, but probably could have made a much nicer solution that this one - still, it makes curves approximately how you liked and lofts them. As David said, hard to make "creases" though I think you can come pretty close if you wanted to really bunch control points closely at the tops of the "ridges". You could do…</p>
<p>Little embarrassed to put my monstrosity up after David's predictably elegant one. This problem caused me much soul searching in the ways of trees and I think I understand them better, but probably could have made a much nicer solution that this one - still, it makes curves approximately how you liked and lofts them. As David said, hard to make "creases" though I think you can come pretty close if you wanted to really bunch control points closely at the tops of the "ridges". You could do that with my solution but it would just take more time. I probably should have generalized it so you could more easily pick the points on the curve but I'm too lazy.</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768951439?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2768951439?profile=RESIZE_1024x1024" width="721" class="align-full"/></a></p> I attached a file that create…tag:www.grasshopper3d.com,2015-01-20:2985220:Comment:12075372015-01-20T09:46:10.673ZDavid Ruttenhttps://www.grasshopper3d.com/profile/DavidRutten
<p>I attached a file that creates the cross section curves. It doesn't create a surface or mesh (or brep), that's probably quite a lot harder. But it shows how to parse a list of curves and connect them with -in this case- catenaries.…</p>
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<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768948623?profile=original" target="_self"><img class="align-center" src="http://storage.ning.com/topology/rest/1.0/file/get/2768948623?profile=RESIZE_1024x1024" width="721"></img></a></p>
<p>I attached a file that creates the cross section curves. It doesn't create a surface or mesh (or brep), that's probably quite a lot harder. But it shows how to parse a list of curves and connect them with -in this case- catenaries.</p>
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<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768948623?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2768948623?profile=RESIZE_1024x1024" width="721" class="align-center"/></a></p> Hi Baker,
there's several wa…tag:www.grasshopper3d.com,2015-01-20:2985220:Comment:12074482015-01-20T09:38:05.999ZDavid Ruttenhttps://www.grasshopper3d.com/profile/DavidRutten
<p>Hi Baker,</p>
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<p>there's several ways to approach this. If you want to create a single nurbs surface or quad-mesh that approxiates the shape, you'll have trouble getting the creases really sharp, as they are probably at angles to the underlying surface topology (i.e. the grid of control-points). <span style="font-size: 13px;">You can create shapes with sharp creases using Breps, but then you'll no longer have a single surface.…</span></p>
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<p>Hi Baker,</p>
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<p>there's several ways to approach this. If you want to create a single nurbs surface or quad-mesh that approxiates the shape, you'll have trouble getting the creases really sharp, as they are probably at angles to the underlying surface topology (i.e. the grid of control-points). <span style="font-size: 13px;">You can create shapes with sharp creases using Breps, but then you'll no longer have a single surface.</span></p>
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<p><span style="font-size: 13px;">Another rather important detail is the exact shape of the valleys. Are they supposed to be catenary sections? Parabolas? Circular arcs? Elliptical arcs? Bezier curves? 6th order curves? ...?</span></p>
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<p><span style="font-size: 13px;">If this shape is supposed to represent a physically deformed object, perhaps the best approach is to use Kangaroo with a custom mesh and fix some of the vertices. This will allow for creases, but gives less control over the exact shape of the cross sections.</span></p> Hi Baker,
Try this:
tag:www.grasshopper3d.com,2015-01-20:2985220:Comment:12075152015-01-20T08:08:16.798ZYasser Hafizshttps://www.grasshopper3d.com/profile/yasser_h
<p>Hi Baker,</p>
<p>Try this:</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768948605?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2768948605?profile=RESIZE_1024x1024" width="721" class="align-left"/></a></p>
<p>Hi Baker,</p>
<p>Try this:</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2768948605?profile=original" target="_self"><img width="721" src="http://storage.ning.com/topology/rest/1.0/file/get/2768948605?profile=RESIZE_1024x1024" width="721" class="align-left"/></a></p>