Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
While contouring a grid, I am using the PATH_FILE_NAME, PATH_INFO and PATH_XY keywords to save the contour path. I got the paths all right but I have trouble to understand how to interpretate the HIGH_LOW value in the contour_path_structure. I understand all the contours are "closed." But How do you determine the "surroundings" of a contour? Inside? Outside? Which side is inside? Thanks for any info! Tsengdar Lee