API Reference > imodeljs-common > Geometry > Helmert2DWithZOffsetProps Helmert2DWithZOffsetProps Interface An affine transformation with an additional Z Offset. The equations are: given a = scale * cos(rotation) and b = scale * sin(rotation) X = a * x - b * y + translationX Y = b * x + a * y + translationY Z = z + translationZ Implemented by Helmert2DWithZOffset Properties Name Type Description rotDeg number The rotation in the trigonometric (CCW) direction in degrees. scale number The scale. translationX number The X post translation translationY number The Y post-translation translationZ number The Z post-translation or Z offset Defined in core/common/src/geometry/AdditionalTransform.ts Line 20 Last Updated: 11 June, 2024