This example shows how one goes from randomly spaced data points to an evenly sampled surface. We have 13504 approximation points (file examples/surfit/points/points.txt) and equidistant grid with more than 250000 nodes. To approximate points to evenly sampled smooth surface we do the following things:

See Also
points, points_add, completer

Here is the image of the resulting surface:

approximation surface

Pic 1. approximation surface

small part of approximation surface

Pic 2. small part of approximation surface

This result was obtained with "examples/surfit/points/points_approx.tcl" script.

Some comments to script:

surfit: gridding and contouring software.