Function PathDataTransformRel

svg/path.go:934–940

PathDataTransformRel does the transform of next two data points as relative coords compared to given cp coordinate. returns new *absolute* coordinate

(data []PathData, i *int, xf math32.Matrix2, cp math32.Vector2)

// PathDataTransformRel does the transform of next two data points as relative coords
// compared to given cp coordinate.  returns new *absolute* coordinate
func PathDataTransformRel(data []PathData, i *int, xf math32.Matrix2, cp math32.Vector2) math32.Vector2 {
	rp := PathDataNextVector(data, i)
	tc := xf.MulVector2AsVector(rp)
	data[*i-2] = PathData(tc.X)
	data[*i-1] = PathData(tc.Y)
	return cp.Add(tc) // new abs
}

// ApplyDeltaTransform applies the given 2D delta transforms to the geometry of this node
// relative to given point.  Trans translation and point are in top-level coordinates,