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    API Reference ↗
    Data connectivity & integrationPipeline Builder ExpressionsGeometry rotate 2d

    Geometry rotate 2d

    Supported in: Streaming

    Applies a two dimensional clockwise rotation centered at the provided GeoPoint to the supplied geometry. This rotation occurs in the provided coordinate reference system and is then projected back to WGS84.

    Expression categories: Geospatial

    Declared arguments

    • Angle in degrees: The angle in degrees of clockwise rotation.
      Literal<Double>
    • Centre GeoPoint: The centre GeoPoint about which the rotation occurs. Assumed to be in WGS84.
      Expression<GeoPoint>
    • Geometry column: The geometries on which the rotation is applied.
      Expression<Geometry>
    • Projected coordinate system: Coordinate system identifier formatted as "authority". For example, UTM zone 18N could be identified by EPSG:32618. Geometries will be projected to the source coordinate system, have a rotation applied, then projected back to WGS84.
      Literal<String>

    Output type: Geometry

    Examples

    Example 1: Base case

    Argument values:

    • Angle in degrees: 90.0
    • Centre GeoPoint: geoPoint
    • Geometry column: geometry
    • Projected coordinate system: EPSG:4326
    geometrygeoPointOutput
    {"type":"Point","coordinates":[1.0, 0.0]}{
     latitude -> 0.0,
     longitude -> 0.0,
    }    		{"type":"Point","coordinates":[6.123233995736766E-17, -1.0]}

    Example 2: Base case

    Argument values:

    • Angle in degrees: 270.0
    • Centre GeoPoint: geoPoint
    • Geometry column: geometry
    • Projected coordinate system: EPSG:32618
    geometrygeoPointOutput
    {"type":"Point","coordinates":[-77.0, 20.0]}{
     latitude -> 22.0,
     longitude -> -76.0,
    }    		{"type":"Point","coordinates":[-73.8719606865239, 21.041418391118174]}

    Example 3: Base case

    Argument values:

    • Angle in degrees: 180.0
    • Centre GeoPoint: geoPoint
    • Geometry column: geometry
    • Projected coordinate system: EPSG:4326
    geometrygeoPointOutput
    {"type":"LineString","coordinates":[[0.0, 0.0], [1.0, 0.0]]}{
     latitude -> 1.0,
     longitude -> 1.0,
    }    		{"type":"LineString","coordinates":[[2.0, 2.0], [0.9999999999999999, 2.0]]}

    Example 4: Null case

    Argument values:

    • Angle in degrees: 90.0
    • Centre GeoPoint: geoPoint
    • Geometry column: geometry
    • Projected coordinate system: EPSG:4326
    geometrygeoPointOutput
    nullnullnull