问题
I have a rendering problem about importing dxf file.
Rendering success:
- Use linear_extrude() for a dxf file and display a sphere.
- Only use rotate_extrude() for a dxf file.
Rendering fail:
- Use rotate_extrude() for a dxf file and display a sphere.
Here is my source code:
module loadFile() {
rotate_extrude()
import("import_exercise.dxf");
}
module loadSphere() {
translate([0,0,-30])
sphere(10);
}
loadFile();
loadSphere();
Here is the error message:
ERROR: CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion violation! Expr: e->incident_sface() != SFace_const_handle() File: /Users/kintel/code/OpenSCAD/openscad/../libraries/install/include/CGAL/Nef_S2/SM_const_decorator.h Line: 329
Here is the scad file:
https://drive.google.com/file/d/1dT84jAzTGn-FxavEXamVivUwODelRqLS/view?usp=sharing
Here is the dxf file:
https://drive.google.com/file/d/1XhjWkydDVEnrn-vYcJOT5-yIjSRtdQaT/view?usp=sharing
Preview success
Render fail
Render success
Thank you!
回答1:
The problem is in the dxf-file. Your model touches the y-axis in 1 point. Explanation see in openscad forum. I modified your dxf in two ways. In the first the y-axis is not touched by a point but by a shape, in the second the shape is 0.1 mm parallel to y-axis. Both render without error and the resulting design is valid!
You can download the dxf-files from box
来源:https://stackoverflow.com/questions/48217579/how-can-i-render-a-dxf-file-with-sphere-in-openscad