Point Selection & Verification

Point selection can be done with the mouse by roaming over the map, watching the coordinates in the panel at the bottom of the window, and double clicking at the desired location. The accuracy with which you can select locations will depend upon:

With a large DEM or a small window you may not be able to be very precise—you can only select those points that exactly correspond to pixels on the screen. The screen pixel size shown on the Information menu choice will show you the resolution with which you can graphically select points--note this is a best case, and assumes you actually can pick the pixel you want.  You can increase your precision by setting the Verify Coordinates setting on the Coordinates  tab of  the options menu. This offers the following choices:

You have two ways to verify coordinates (also set on the Coordinates tab of  options menu):

Last revision 12/3/2011