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Unexpected output of CSGRegion and RegionDifference?

Yu Chen

Yu Chen, Jiangmen Education Research Institute

Posted 7 months 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 6 months 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

EDITORIAL BOARD

EDITORIAL BOARD, WOLFRAM

Posted 6 months 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: EDITORIAL BOARD