You are here: Start » Function Reference » Geometry 2D Spatial Transforms » RescalePoint

RescalePoint

Changes the distance of a point to a reference point.

Syntax

void avl::RescalePoint
(
	const avl::Point2D& inPoint,
	const avl::Point2D& inReferencePoint,
	float inScale,
	bool inInverse,
	avl::Point2D& outPoint
)

void RescalePoint
(
	Point2D inPoint,
	Point2D inReferencePoint,
	float inScale,
	bool inInverse,
	out Point2D outPoint
)

Parameters

Name	Type	Default	Description
inPoint	const Point2D&
inReferencePoint	const Point2D&		Point to which the distance will be changed
inScale	float	1.0f	Scaling factor
inInverse	bool		Switches to the inverse operation
outPoint	Point2D&

Examples

RescalePoint performed on the sample point, inReferencePoint = (150.0, 150.0), inScale = -1.5 and inInverse = false. The inReferencePoint point is drawn on the first image in blue.

Errors

Error type	Description
DomainError	inScale cannot be zero in an inverse rescaling of a point in RescalePoint.