Questions tagged [opencascade]
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54 questions
6
votes
3
answers
327
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How can I get the chamfer of the 3D font and make a BoundaryMeshRegion?
The desire font as in the document which could be found by FindShortestCurve -> Scope -> Mesh Region -> the last example
https://reference.wolfram.com/language/ref/FindShortestCurve.html#...
- 1,675
3
votes
1
answer
132
views
Problem with IncludePoints in ToElement Mesh
In a finite element code I whish to use "IncludePoints" in ToElementMesh and I get a failure. Here is a minimum ...
- 17.7k
2
votes
0
answers
182
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The OpenCascadeShapeLinearSweep seems could not sweep the polygon from one point to another point
When we set direction = {{0,0,0}, {0,0,3}};, we could moving the polygon along the direction {0,0,1} and the polygon moving from ...
- 1,675
1
vote
1
answer
138
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RegionUnion Volume returns undefined
I am trying to calculate the volume of a structure made by RegionUnion. Here is the structure
...
- 41
6
votes
1
answer
574
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How can I color a cylinder inside a sphere?
I am trying to draw a figure and color it like this from here:
I tried
CSGRegion["Difference", {Ball[{0, 0, 0}, 5], Cylinder[{{0, 0, -5}, {0, 0, 5}}, 2]}]
...
- 167
0
votes
1
answer
128
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Why can't OpenCascadeLink dll be loaded?
I am running MMA 14.2.1.0 on Win 11. Needs["OpenCascadeLink`"] executes. But when I try to use OpenCascadeShapeImport I get this error:
LibraryFunction::load: The library C:\Program Files\...
- 5,526
10
votes
1
answer
384
views
Kernel crash during RegionDifference of complex 3D meshes + BoundaryMeshRegion::bsuncl error
I'm modeling a screw rotor with cavities (for CAD/CFD analysis). The workflow involves:
Generating the rotor body from 5 parametric surfaces.
Creating cavity profiles from 4 extruded segments.
...
- 317
5
votes
1
answer
189
views
*.STL files from using IMPORT command are not passing SolidRegionQ test
My goal is to create models in CAD or similar software and importing into MMA for analysis. I have created *.STL files using Blender, FREECAD, GMSH, etc.. none of them pass the SolidRegionQ test to ...
- 481
6
votes
1
answer
681
views
How can I draw Union of two cylinders like this?
I am trying to draw this picture
I tried
CSGRegion["Union", {Cylinder[{{-50, 0, 0}, {50, 0, 0}}, 20], Cylinder[{{0, -50, 0}, {0, 50, 0}}, 20]}]
- 4,949
4
votes
1
answer
190
views
Surgical fixation plate - OPEN CASCADE LINK EXAMPLE - appears to have problem with edges and wires
I am new to MMA and best way to learn is plow though examples ! I copied all the executable lines from the OPEN CASADE LINK example for Surgical fixation plate.
https://reference.wolfram.com/language/...
- 481
4
votes
1
answer
190
views
OpenCascadeShape does not appear to work for sphere object - no wire mesh formed
I tried a simple example using OpenCascadeShape, and BALL works as an option, but sphere does not - I get an error -
OpenCascadeShapeSurfaceMeshToBoundaryMesh[OpenCascadeShape[Sphere[{1,
2,3},10]]] is ...
- 481
3
votes
1
answer
163
views
How to convert a segmented 3D image into a FE mesh with different sub-regions?
I am exploring how to use Mathematica to segment micro - CT images into multiple regions and in the next step use this segmentation to create a water-tight finite element mesh which can then be used ...
- 4,677
6
votes
1
answer
317
views
Continuously vary tube radius of parametricPlot3D depending on distance from origin
I'm doing a project trying to 3D print the stereographic projections of 4D shapes, and I need it so that the lines are thinner towards the origin for structural reasons. I've written functions to do ...
5
votes
4
answers
958
views
How to use Mathematica to plot following helix solid geometry?
So, can you provide a method to plot this geometry in mathematica? It is soild instead of a surface. I need it to be printed out from mathematica as stl. document.
I have tried with Code "...
- 51
6
votes
3
answers
1k
views
How to rotate a triangle to get this picture?
Based on this answer, I am trying to draw the picture b).
I tried
...
- 4,949