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Returns a struct of parameters that represent the GeoTransformation of the raster. The struct has the following schema:
  • magnitudeI: size of a pixel along the transformed i axis
  • magnitudeJ: size of a pixel along the transformed j axis
  • thetaI: angle by which the raster is rotated (Radians positive clockwise)
  • thetaIJ: angle from transformed i axis to transformed j axis (Radians positive counter-clockwise)
  • offsetX: X ordinate of the upper-left corner of the upper-left pixel
  • offsetY: Y ordinate of the upper-left corner of the upper-left pixel
Refer to this image for a clear understanding between i & j axis and x & y-axis.

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Signatures

RS_GeoTransform(raster: Raster)

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Parameters

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raster
Raster
required
The input raster.

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Return type

A struct containing the result fields.

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Example

SELECT RS_GeoTransform(
        RS_MakeEmptyRaster(2, 10, 15, 1, 2, 1, -2, 1, 2, 0)
       )

{2.23606797749979, 2.23606797749979, -1.1071487177940904, -2.214297435588181, 1.0, 2.0}