====== Cropping maps ======
To crop the size of the currently displayed map layer, first enable the [[l3dt:userguide:tools:selarea|select area mouse tool]], and left-click and drag to select the desired area (see below). Note that the status bar displays the start and end coordinates and the size of the selected area.
| {{l3dt:userguide:io:export:area:hf_select.jpg}} |
^ Selecting an area of a map. ^
You do not need to be ultra-precise when using the section tool, as you will be able to modify the exact selection coordinates later.
Once you've roughly selected the area you wish to keep, select the '//Layers->Crop//' menu item. This will open the 'Crop map layer' window, shown below:
| {{:l3dt:userguide:dialogs:cropmaplayer.png|:l3dt:userguide:dialogs:cropmaplayer.png}} |
^ The 'Crop map layer' window. ^
In this window, you may set the exact coordinates to be cropped. The initial values will be those of the area selected using the //select area// mouse tool. Once you click OK, L3DT will crop the map to the area 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, which is the bottom left-hand corner of map display window.