Map GPS Coordinates - GPS Map Coordinates ... - Global Mapper

• Filter (Keep First Value if Second Valid) - value in the new layer is assigned to the value in the first
layer only if the value in the second layer is vaild. Otherwise the value in the new layer is marked as
invalid (void). This is useful for applying a mask to a terrain layer.
• Filter (Keep First Value if Greater Than Second) - value in the new layer is assigned to the value
in the first layer only if the first layer value is greater than the second layer value. If either value is
invalid or the first value is less than the second value, the value in the new layer is marked as invalid
(void).
• Filter (Keep First Value if Less Than Second) - value in the new layer is assigned to the value in
the first layer only if the first layer value is less than the second layer value. If either value is invalid
or the first value is less than the second value, the value in the new layer is marked as invalid (void).
Note: Only registered users of Global Mapper are able to combine terrain layers.
Generate Contours Command
Global Mapper User's Manual
The Generate Contours command allows the user to generate equally spaced contour lines from any loaded
elevation grid data.
When selected, the command displays the Contour Generation Options dialog (pictured below) which allows
the user to set up the contour generation process.
Map GPS Coordinates - GPS Map Coordinates - GPSCoordinates Map 80