Friends, I'm trying to figure the best way to use GIMP blend colors in a particular application.
I have a topographical map, and I want to apply a color gradient which follows the contour lines of the map, and blends from a darker hue at the lower contour to a lighter hue at the next higher contour. The contour lines are not parallel. In the final image, I want a uniform darker hue right next to the contour line, and a uniform ligher hue at the higher one. A further complication is that the contours do not have a uniform direction. In one part of the image the gradient from 10 units to 20 units will be right to left, in another part of the image going from 10 units to 20 will go from left to right, and in still others, the contour representing 20 units will be a smaller irregular shape inside the larger, different, but still irregular shape representing an elevation of 10 units. I've thought of a number of ways to do this manually, for example, divide the map into different layers at the contour lines, and using the airbrush tool to overlay the colors; another is to leave the different contour levels in one layer, and use the smudge tool to blend across the contours. But are there filters of plug-ins which might automate at least part of the process? ns _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
