API Reference > imodeljs-common > Geometry > PositionalVectorTransform PositionalVectorTransform Class This class represents a positional vector (seven parameters) geodetic transformation corresponding to EPSG operation 9606. Beware that the convention relative to rotation direction is different from the Coordinate Frame operation (epsg 9607). Implements PositionalVectorTransformProps Methods Name Description constructor(data?: PositionalVectorTransformProps): PositionalVectorTransform equals(other: PositionalVectorTransform): boolean Compares two Positional Vector Transforms. toJSON(): PositionalVectorTransformProps Creates a JSON from the Positional Vector Transform definition fromJSON(data: PositionalVectorTransformProps): PositionalVectorTransform Static Creates a Positional Vector Transform from JSON representation. Properties Name Type Description delta Readonly Vector3d The frame translation components in meters rotation Readonly XyzRotation The frame rotation components in arc seconds. scalePPM Readonly number Scale in parts per million. Defined in core/common/src/geometry/GeodeticDatum.ts Line 136 Last Updated: 11 June, 2024