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Select the surface you want to duplicate (Process
Surface) and the surface you want to copy the
points to (Destination Surface)
Once the surfaces are selected click OK to
continue.
If points exist on the Destination Surface, the
following dialog will appear:
Click OK to delete the points in the surface or
Cancel to end the function.
Once the surface has been duplicated, a height
constant can be added to the new surface.
Editing Menu › Height Constants
A constant can be added to the heights on the surface,
or the heights can be modified by a constant using the
Multiplication option. If you want to subtract
a value from the heights, you can add a negative
value.
The constant can be added to a certain section of a
surface, by defining a polyfence and then using the
Use fence option.
Click OK to continue.
The standard Point Filter dialog will appear
The constant can be applied either to specific points
on the surface, to a specific surface only, or to all
the surfaces in the DTM.
If the Output Window is shown, the previous
levels and new levels will be listed
To show the Output Window:
Windows Menu › Toggle Output Window
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