View Map Difference Dialog Box

Map Difference Dialog Box

Contour File 1...
push button
Use this parameter to identify the first Contour File for the command.

Contour File 2...
push button
Use this parameter to identify the second Contour File for the command. The Map Difference command subtracts (or adds) the second contour file from (or to) the first. The resulting file will have the same grid spacing and dimensions as Contour File 1. Thus, regions existing in Contour File 2 but not in Contour File 1 will not be represented in the Difference map.

Operator
option menu: {Add|Subtract}
Choose which mathematical operation you want performed on the two Contour Files.

Output Map File
field
Specify the desired name for the output file from the Map Difference command.