This example shows how to build surface using contours. In this example 3 different contours were used. Two of them were (cntr_big_circle, cntr_center) approximated by resulting surface. Another one (cntr_big_circle) was used to modify completer gridding rule with weight.
Pic 1. Surface built from contours
This result was obtained with "examples/surfit/curvs/contour.tcl"
script.
surfit: gridding and contouring software.