Back to FabImage Library Lite website

You are here: Start » Geometry 2D » Geometry 2D Spatial Transforms » RescaleArc

RescaleArc


Header: FIL.h
Namespace: fil

Changes radius of an arc and translates its center in relation to a reference point.

Syntax

void fil::RescaleArc
(
	const fil::Arc2D& inArc,
	ftl::Optional<const fil::Point2D&> inReferencePoint,
	float inScale,
	bool inInverse,
	fil::Arc2D& outArc
)

Parameters

Name Type Default Description
Input value
 inArc const Arc2D&
Input value
 inReferencePoint Optional<const Point2D&> NIL The point to which the distance of the arc center is changed (no change by default)
Input value
 inScale float 1.0f Scaling factor
Input value
 inInverse bool Switches to the inverse operation
Output value
 outArc Arc2D&

In-place Processing

This function supports in-place data processing - you can pass the same reference to inArc and outArc

Read more about In-place Computation.

Examples

RescaleArc performed on the sample arc, inReferencePoint = auto, inScale = 2.0 and inInverse = false.

Errors

List of possible exceptions:

Error type Description
DomainError Scale cannot be zero in an inverse scaling of an arc in RescaleArc.