Terrain Processor: Heightmap: ASCII DEM Convert: Difference between revisions
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[[Category:Terrain Processor Manual|Heightmap]] | |||
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Revision as of 13:27, 9 August 2015
Task details
Task name : Heightmap: Create from Geodetic .asc
Dll plugin name : BITasksPlugin.dll
Geometry type : None
Heightmap : Yes
Description
Algorithm creates UTM ASCII heightmap from geodetic .ASC digital elevation models.
- Orange - regular geodetic heightmap
- Blue - new terrain UTM heightmap
Task parameters
- Easting - UTM easting coordinate
- Northing - UTM northing coordinate
- Zone - UTM zone
- Hemisphere - UTM hemisphere (Northern, Southern)
- Rows & columns count - Rows and columns count
- Cell size - Cell size in meters.
Usage
Conversion tool, creating UTM heightmap from Geodetic heightmap.
Algorithm
- Load geodetic ASCII DEM.
- Prepare heightmap with size and position in UTM.
- Foreach cell in heightmap:
- Get its UTM coordinate
- Convert UTM coordinate to geodetic coordinate.
- Get height from geodetic ASCII heightmap with bicubic spline function.