UTM Geo Map is equipped with a module for creating contour lines through the Contours module, this module is also equipped with the ability to perform contour editing & labelling such as move vertex, add vertex, delete vertex, change color, add attribute etc.
Apart from manual contour editing as above, there are several advanced editing tools that can be done automatically in the UTM Geo Map application, such as Smoothing (Cubic Bezier Interpolation), Simplify (Douglas Peucker Algorithm) and editing processes using geometry & topology calculations such as deleting contours inside / outside a polygon automatically which you can see in the following video:
Module to use: Contours
Steps: Open Contour module > Click on existing polygon > Click Intersection Point > Click Delete Contour Inside / Outside Polygon
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