How to draw a topographic map, given the points with x, y values and its height?
For example here are a few points:
Point X Y HEIGHT DESCRIPTION
1 255.03 900.11 500.45 Part of a road
2 248.99 898.81 489.12 Part of a road
3 241.73 892.47 488.74 Part of a road
Could anyone give me a well explanation (or even a resource) to help me understand how to plot/draw the topographic map given the info?