Derivative Grids

Invokes popup menu, which can be selected in two places:

This will create a new grid, with the same size and spacing as the original grid.

You must save the new grids (File, Save DEM)  if you want to use them again.  The derivative grid can be manipulated in its own right.

Some options (relief, openness) require that a region size be selected. The computations will use a square centered on the point.

Some options (e.g. slope, reflectance, aspect) can be selected from the display option of the DEM display, but have limited modification capability since they are just display modes of the DEM.

Last revision 2/1/2016