Back to Aurora Vision Library website

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


Header: AVL.h
Namespace: avl
Module: FoundationLite

Moves a rectangle from a local coordinate system to the absolute one.

Applications: Required when there is a rectangle defined in a local coordinate system, but the next image-related filter in the program does not have any inAlignment input.


void avl::AlignRectangle
	const avl::Rectangle2D& inRectangle,
	const avl::CoordinateSystem2D& inAlignment,
	bool inInverse,
	avl::Rectangle2D& outAlignedRectangle


Name Type Default Description
Input value
inRectangle const Rectangle2D&
Input value
inAlignment const CoordinateSystem2D& Coordinate system to align to
Input value
inInverse bool Switches to the inverse transform
Output value
outAlignedRectangle Rectangle2D&

In-place Processing

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

Read more about In-place Computation.


AlignRectangle aligns the inRectangle to the inAlignment coordinate system. The input rectangle is translated, rotated and scaled.

The inAlignment is usually a coordinate system found by some template matching algorithm.


AlignRectangle performed on the sample rectangle. The inAlignment is drawn on the first image in blue.

See Also

  • AlignPath – Moves a path from a local coordinate system to the absolute one.