python中txt文件的表面图

Question

What is the simplest way to create a surface plot from a .txt file with data points arranged in, say N rows and M columns? I just want to see what the file looks when layed onto a plane with each data point representing the height of the surface at that point, so to speak.

Answer 1

Assuming you can read the file into a matrix, you can use most popular plotting libraries to create a contour plot. (Contour is the 2D equivalent of surface, which is 3D).

Examples here: https://plot.ly/python/contour-plots/