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Unexpected output of CSGRegion and RegionDifference?

Yu Chen

Yu Chen, Jiangmen Education Research Institute

Posted 19 days ago

The output of CSGRegion and RegionDifference in the attachment is wrong. What's wrong? Please enlighten me. thank you！ Attachments: CSGRegion and Re...nb

POSTED BY: Yu Chen

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Yu Chen

Yu Chen, Jiangmen Education Research Institute

Posted 3 days ago

Many thanks to the Wolfram's team and their professional guidance! Through the following guidance, I once again felt the power of Wolfram Mathematica. I hope that I can use relevant research results to repay everyone's help in the near future.

POSTED BY: Yu Chen

Moderation Team

Moderation Team, WOLFRAM

Posted 8 days ago

Here is a suggested answer from Wolfram's team Needs["NDSolve`FEM`"] Needs["OpenCascadeLink`"] cyl = OpenCascadeShape[Cylinder[{{-9, 0, 0}, {9, 0, 0}}, 7]]; dg = DiscretizeGraphics[ExampleData[{"Geometry3D", "SpaceShuttle"}]]; orbiter = OpenCascadeShape[ToBoundaryMesh[dg]]; shape = OpenCascadeShapeDifference[cyl, orbiter]; bmesh = OpenCascadeShapeSurfaceMeshToBoundaryMesh[shape]; bmesh["Wireframe"]

Here is a suggested answer from Wolfram's team

Needs["NDSolve`FEM`"]
Needs["OpenCascadeLink`"]
cyl = OpenCascadeShape[Cylinder[{{-9, 0, 0}, {9, 0, 0}}, 7]];
dg = DiscretizeGraphics[ExampleData[{"Geometry3D", "SpaceShuttle"}]];
orbiter = OpenCascadeShape[ToBoundaryMesh[dg]];
shape = OpenCascadeShapeDifference[cyl, orbiter];
bmesh = OpenCascadeShapeSurfaceMeshToBoundaryMesh[shape];
bmesh["Wireframe"]

POSTED BY: Moderation Team