Using Airborne Laserscanning Data for Orienteering Base Map Generation

This tutorial shows how to generate in OCAD 12 an orienteering base map with the Airborne Laserscanning (ALS) test data from Landmäteriet in Sweden.

Link to the data: https://www.lantmateriet.se/Kartor-och-geografisk-information/Hojddata/Laserdata/Demodata/

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.