PyX - Example: 3dgraphs/surface.py
Simple 3d surface
#!/usr/bin/env python from pyx import * g = graph.graphxyz(size=4, x2=None, y2=None) g.plot(graph.data.file("surface.dat", x=1, y=2, z=3), [graph.style.surface()]) g.dodata() g.writeEPSfile("surface") g.writePDFfile("surface")
Description
This first simple example provides data for the x, y and z coordinates. PyX creates a rectangular grid from the data from the first two coordinates without relying on a special ordering of the data.
In this example we turn off the other two axes x2 and y2, which would be plotted on the opposite side of the bottom horizontal plane. The data are plotted prior to the axes by the dodata call.
A missing point will create a hole in the surface.
The underlying rectangular grid is created by the gridpos style. By changing its parameters you can also create the base rectangular grid from others than the first two coordinates.