{"name":"Terrain Processor: Heightmap: ASCII DEM Convert","title":"Terrain Processor: Heightmap: ASCII DEM Convert","type":"topic","url":"https://community.bistudio.com/wiki/Terrain_Processor:_Heightmap:_ASCII_DEM_Convert","revid":349997,"updated":"2023-11-20T22:11:44Z","aliases":[],"markdown":"#### Task details\n\n**Task name** : Heightmap: Create from Geodetic .asc\n\n**Dll plugin name** : BITasksPlugin.dll\n\n**Geometry type** : None\n\n**Heightmap** : Yes\n\n#### Description\n\nAlgorithm creates UTM ASCII heightmap from geodetic .ASC digital elevation models.\n\n- **Orange**  - regular **geodetic** heightmap\n- **Blue** - new terrain **UTM** heightmap\n\n#### Task parameters\n\n- **Easting** - UTM easting coordinate\n- **Northing** - UTM northing coordinate\n- **Zone** - UTM zone\n- **Hemisphere** - UTM hemisphere (Northern, Southern)\n- **Rows & columns count** - Rows and columns count\n- **Cell size** - Cell size in meters.\n\n#### Usage\n\nConversion tool, creating UTM heightmap from Geodetic heightmap.\n\n#### Algorithm\n\n1. Load geodetic ASCII DEM.\n1. Prepare heightmap with size and position in UTM.\n1. For each cell in heightmap:\n   1. Get its UTM coordinate\n   1. Convert UTM coordinate to geodetic coordinate.\n   1. Get height from geodetic ASCII heightmap with bi-cubic spline function.","sections":[{"heading":"Task details","level":4,"markdown":"**Task name** : Heightmap: Create from Geodetic .asc\n\n**Dll plugin name** : BITasksPlugin.dll\n\n**Geometry type** : None\n\n**Heightmap** : Yes"},{"heading":"Description","level":4,"markdown":"Algorithm creates UTM ASCII heightmap from geodetic .ASC digital elevation models.\n\n- **Orange**  - regular **geodetic** heightmap\n- **Blue** - new terrain **UTM** heightmap"},{"heading":"Task parameters","level":4,"markdown":"- **Easting** - UTM easting coordinate\n- **Northing** - UTM northing coordinate\n- **Zone** - UTM zone\n- **Hemisphere** - UTM hemisphere (Northern, Southern)\n- **Rows & columns count** - Rows and columns count\n- **Cell size** - Cell size in meters."},{"heading":"Usage","level":4,"markdown":"Conversion tool, creating UTM heightmap from Geodetic heightmap."},{"heading":"Algorithm","level":4,"markdown":"1. Load geodetic ASCII DEM.\n1. Prepare heightmap with size and position in UTM.\n1. For each cell in heightmap:\n   1. Get its UTM coordinate\n   1. Convert UTM coordinate to geodetic coordinate.\n   1. Get height from geodetic ASCII heightmap with bi-cubic spline function."}],"categories":["Terrain Processor Manual"],"groups":["Tools and File Formats"]}