Hao Hua
I got a similar exception, using cython solves this problem.
We do have the digital book, however, the publisher does not allow me to share it for the time being.
Hi, vikingee There is TestMultiSheets1b.java as an example. It uses an external library core.jar (https://processing.org) for displaying the 3D shapes. You can replace the data in double[][][] randompolys; //the input...
To input cad drawing, you may use https://github.com/whitegreen/Import-DXF
Dear friend, I suppose you need core.jar (a third part library for visualization) to run the example. I uploaded core.jar today.