RS_MetaData

Introduction: Returns the metadata of the raster as a struct. The struct has the following schema:

• upperLeftX: upper left x coordinate of the raster, in terms of CRS units
• upperLeftX: upper left y coordinate of the raster, in terms of CRS units
• gridWidth: width of the raster, in terms of pixels
• gridHeight: height of the raster, in terms of pixels
• scaleX: ScaleX: the scaling factor in the x direction
• scaleY: ScaleY: the scaling factor in the y direction
• skewX: skew in x direction (rotation x)
• skewY: skew in y direction (rotation y)
• srid: srid of the raster
• numSampleDimensions: number of bands
• tileWidth: (Since v1.6.1) width of tiles in the raster
• tileHeight: (Since v1.6.1) height of tiles in the raster

For more information about ScaleX, ScaleY, SkewX, SkewY, please refer to the Affine Transformations section.

tileWidth and tileHeight are available since v1.6.1, they are the dimensions of the tiles in the raster. For example, rasters written by RS_FromGeoTiff uses the tiling scheme of the loaded GeoTIFF file. For rasters that has only 1 tile, tileWidth and tileHeight will be equal to gridWidth and gridHeight respectively.

Format: RS_MetaData (raster: Raster)

Return type: Array<Double>

Since: v1.4.1

SQL Example

SELECT RS_MetaData(raster) FROM raster_table

Output:

{-1.3095817809482181E7, 4021262.7487925636, 512, 517, 72.32861272132695, -72.32861272132695, 0.0, 0.0, 3857, 1, 256, 256}