Using Airborne Laserscanning Data for Orienteering Base Map Generation: Difference between revisions

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== Open New File ==
== Open New File ==
* ''File'' -> ''New'' -> ''Orienteering map'': Choose a file for orienteering maps.  
* Open OCAD
* Go to '''File''' -> '''New''' -> ''Orienteering map'': Choose a symbol set for orienteering maps and choose the scale (e.g ''Orienteering Map ISOM 2017 10000.ocd'')
* Save the created new file ''File'' -> ''Save''
* Save the created new file ''File'' -> ''Save''
== DEM Wizard ==
=== Open the DEM Wizard ===
Open the '''DEM Import Wizard''' in the '''DEM''' Menu.
[[File:DEMImportWizrad.png]]
=== Choose DEM Import File ===
[[File:DEMImportFiles.png]]
=== Settings ===
[[File:DEMLasSettings.png]]


== Import the Additional Symbol for the Contour Lines from ALS Data ==
== Import the Additional Symbol for the Contour Lines from ALS Data ==

Revision as of 08:47, 7 July 2018

This tutorial shows how to generate in OCAD 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

  • Open OCAD
  • Go to File -> New -> Orienteering map: Choose a symbol set for orienteering maps and choose the scale (e.g Orienteering Map ISOM 2017 10000.ocd)
  • Save the created new file File -> Save

DEM Wizard

Open the DEM Wizard

Open the DEM Import Wizard in the DEM Menu. DEMImportWizrad.png

Choose DEM Import File

DEMImportFiles.png

Settings

DEMLasSettings.png

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.

AlsDataImport 1.png

OCAD added 3 new symbols for the contour lines (1m, 5m, 25m) at the end of the symbol table.

AlsDataImport 2.png

Import ALS Data

  • Click DEM -> Import. The DEM Import Wizard appears.
  • Click Add and choose the four ALS tiles in rar file format.

AlsDataImport 3.png

  • 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.

AlsDataImport 4.png

  • Click Next 5 times until OCAD starts with the generation process.
  • Click OK when OCAD ask to georeference the map. This takes some minutes.

AlsDataImport 5.png

Generated Base Maps

  • OCAD changes to the Entire View.

AlsDataImport 6.png

  • Zoom in to see the calculated 1m contour lines and the vegetation map.

AlsDataImport 7.png

  • Click Background Maps -> Manage to hide the hide the calculated raster background maps.

AlsDataImport 8.png

For more information about the different background maps see the DEM Import Wizard page .