Using Airborne Laserscanning Data for Orienteering Base Map Generation
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This tutorial shows how to generate in OCAD 12 an orienteering base map with the Airborne Laserscanning (ALS) test data from Landmäteriet in Sweden.
Open New File
- File -> New -> Orienteering map: Choose a file for orienteering maps.
- Save the created new file File -> Save
Import the Additional Symbol for the Contour Lines from ALS Data
- Press the Shift key and click File -> Import: OCAD opens the file chooser in Templates folder. Choose the file 'Template DEM Contour Lines.ocd'.
- In Import OCAD Map dialog choose the options Import all Symbols and colors and Import colors at the top of the color table. Click OK.
OCAD added 3 new symbols for the contour lines (1m, 5m, 25m) at the end of the symbol table.
Import ALS Data
- Click DEM -> Import. The DEM Import Wizard appears.
- Click Add and choose the four ALS tiles in rar file format.
- Click Next. OCAD reads the ALS data. This takes some seconds.
Create Base Maps
- Click Next 2 times.
- Change the 3 line symbols to the imported symbols.
- Click Next 5 times until OCAD starts with the generation process.
- Click 'OK when OCAD ask to georeference the map.