This example shows how to use inequality conditions in points to obtain evenly sampled surface. Here we have two set of points: blue (points_geq) and red (points_leq). For blue points surface should be greater than or equal to points values, for red "less than or equal".

See Also
points_leq, points_geq, completer

Here is the image of the resulting surface:

surface with inequality conditions

Pic 1. surface with inequality conditions

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

Some comments to script:

surfit: gridding and contouring software.