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TikZ 3D圆环面

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hbghlyj posted 2023-7-26 10:13 |Read mode
Last edited by hbghlyj 2023-7-26 10:29这帖精确地画出了torus从视角(1,0,1)方向的轮廓,用tikz-3dplot\tdplotsetthetaplanecoords可以画出一些绕z轴旋转的圆。因为i.upmath.me默认导入了tikz-3dplot,可省略\usepackage{tikz-3dplot}这一行:

因为视角是(1,0,1),所以Ox和Oz的投影正相反.
3D制图中,被遮挡的线应该画成虚线,如何计算被遮挡是哪一部分?

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