xd3d is a simple scientific visualization tool designed to be easy to learn. It can plot 2d and 3d meshes, with shadowing, contour plots, vector fields, iso-contour (3d), as well as 3d surfaces z=f(x,y) defined by an algebraic expression or a cloud of points. It generates high quality vector PostScript files for scientific publications and still or animated bitmap images. It includes the graph plotter xgraphic. Reproducible: Always Steps to Reproduce:
Created attachment 31018 [details] xd3d-8.2.0.ebuild
Created attachment 31019 [details, diff] gentoo-xd3d-8.2.0.diff patch that allow xd3d to be compiled with user specified CFLAGS or with intels c compiler
In portage now.