Using Airborne Laserscanning Data for Orienteering Base Map Generation: Difference between revisions
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== Import ALS Data== | == Import ALS Data== | ||
* Click | * Click ''DEM'' -> ''Import''. The DEM Import Wizard appears. | ||
* Click ''Add'' and choose the four ALS tiles in rar file format. | * Click '''Add''' and choose the four ALS tiles in rar file format. | ||
* Click ''Next'. | [[File:AlsDataImport 3.png]] | ||
* Click '''Next'''. OCAD reads the ALS data. This takes some seconds. | |||
== Create Base | == Create Base Maps== | ||
* Click '''Next''' 2 times. | |||
* Change the 3 line symbols to the imported symbols. | |||
[[File: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. | |||
[[File:AlsDataImport 5.png]] | |||
== Generated Base Maps== | |||
* OCAD changes to the Entire View. | |||
[[File:AlsDataImport 6.png]] | |||
* Zoom in to see the calculated 1m contour lines and the vegetation map. | |||
[[File:AlsDataImport 7.png]] | |||
* Click ''Background Maps'' -> ''Manage'' to hide the hide the calculated raster background maps. | |||
[[File:AlsDataImport 8.png]] | |||
For more information about the different background maps see the [[DEM_Import_Wizard#Create_Hypsometric_Map|DEM Import Wizard page]] . |
Latest revision as of 17:02, 5 April 2016
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. This takes some minutes.
Generated Base Maps
- OCAD changes to the Entire View.
- Zoom in to see the calculated 1m contour lines and the vegetation map.
- Click Background Maps -> Manage to hide the hide the calculated raster background maps.
For more information about the different background maps see the DEM Import Wizard page .