Raster data is made up of pixels, each of which has its own value. TerraExplorer supports two types of raster data: geo-referenced, satellite or aerial images that overlay the terrain imagery and geo-referenced elevation raster that replaces the elevation data of the terrain database. All raster layers are displayed in the coordinate system of the terrain database. If a layer is in a different coordinate system, TerraExplorer can automatically reproject the layer on the fly to the terrain's coordinate system. If a source does not include coordinate system information, you should supply the coordinate system information so that TerraExplorer can reproject the layer. More about: Coordinate systems >
Imagery and elevation layers are created by referencing imagery and elevation data from files on your own computer/local network or a database that is served over a network by one of the supported servers. If you want to display a subset of a layer, layers can be clipped. More about: Clipping layers >
To display a layer in different altitudes, TerraExplorer requires a number of resolution levels per layer, which are also known as a resolution pyramid or a multi-resolution file. If a raster layer lacks resolution levels or has an insufficient number of them, it can be converted to a stream-optimized MPT file with resolution pyramids. More about: Converting raster layers to MPT >
More about: Loading raster layers >
Supported Imagery Formats:
- Window Bitmap (.bmp)
- Gdal Gif (.gif)
- Gdal Nitf (.ntf)
- Gdal Jpeg (.jpg)
- Gdal Jpeg2000 (.jp2, .j2k, .jpc)
- Gdal Tiff (.tif)
- Gdal Img (.img)
- Gdal GeoPackage (.gpkg)
- Gdal Webp (.webp)
- Gdal Cib (*.*)
- Skyline Image MPU (.Ii.mpu)
- ER-Mapper (.ecw ,.jp2, .jpc, .j2k)
- Erdas Imagine (.img)
- Image files (.bmp, .gif, .Jpeg)
- NGA formats (CIB, CADRG, ADRG)
- Tile Text file (.tlt)
- Mip Terrain (.mpt)
- HTC Raster file (.htc)
Supported Imagery Servers:
- SkylineGlobe Server
- Web Map Server (WMS)
- Web Map Tile Service (WMTS)
- Oracle Spatial Database
- ECW Image Web Server
- TerraGate Server (legacy support)
- ArcSDE Raster Server
- Google Earth Enterprise (GEE) Server
Supported Elevation Formats:
- Window Bitmap (.bmp)
- ER-Mapper (.ecw)
- Gdal Dted (dt?)
- Gdal USGS Ascii Dem (.dem)
- Gdal USGS SDTS Dem (.ddf)
- Gdal Arc/Info Binary Grid (.adf)
Gdal Img (.img) - Gdal Tiff (.tif)
- Gdal GeoPackage (.gpkg)
- Mip Terrain (.mpt)
- Elevation MPU (.Ei.mpu)
- Erdas Imagine (img)
- NGA DTED (DMED)
- Tiff Format (tif)
- Projection Text File (prj)
- Local MPT (MPT)
- TiLe Text file (.tlt)
- Triangle Elevation (.tri)
- No Stream Bitmap (.bmp)
- No Stream Jpeg (.jpg)
- No Stream Gif (.gif)
Supported Elevation Servers:
- SkylineGlobe Server
- Web Map Server (WMS)
- Web Map Tile Service (WMTS)
- Oracle Spatial Database
- ECW Image Web Server
- TerraGate Server (legacy support)
- ArcSDE Raster Server