L3DT documentation
Large 3D terrain generator

Selecting map areas

Select map area

To select an exact area in a map, select the 'Edit→Select area…' menu item. This will open the 'Select map area' window, shown below:

:l3dt:userguide:dialogs:selectmaparea.png
The 'Select map area' window.

In this window, you may set the exact coordinates to be selected.

L3DT uses a right-handed coordinate system. Consequently, the origin point for map coordinates (0,0) is at the south west corner of the map display window (i.e. bottom left).

You may also select the map area using the select area mouse mode.

Select all

To select all pixels in the active map layer, select the 'Edit→Select all' menu option, or press CTRL+A.

Clear selection

To clear the selected area, select the 'Edit→De-select' menu option, or press CTRL+D.

 
l3dt/userguide/edit/selarea.txt · Last modified: 2013/08/21 17:20 (external edit)
 
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