Example

The figure below was produced by the following commands:

 X = {1;0;1;0;.2;.5;.8}
 Y = {1;0;0;1;.2;.5;.8}
 Z = {0;0;0;0;10;0;-5}
 GRID\XYOUT X Y Z M XOUT YOUT   ! interpolate a matrix
 SET %LEGENDSIZE 2.3            ! legend label size
 WINDOW 5
 SET XLABEL 'CONTOUR\LEGEND XOUT YOUT M'
 CONTOUR\LEGEND XOUT YOUT M 10  ! 10 contours of matrix M
 WINDOW 7
 SET XLABEL 'CONTOUR\LEGEND X Y Z'
 CONTOUR\LEGEND X Y Z 10        ! 10 contours of scattered points
 WINDOW 6
 SCALES 0 .5 5 0 .5 5           ! set axes scales for zooming in
 SET XLABEL 'CONTOUR\PARTIAL XOUT YOUT M'
 CONTOUR\PARTIAL XOUT YOUT M 10 ! contour plot with no legend
 WINDOW 8
 SET XLABEL 'CONTOUR XOUT YOUT M'
 CONTOUR XOUT YOUT M 10         ! 10 contours, no legend
 DEFAULTS
 

  Matrix data