paramChangeSize.c File Reference

#include <stdio.h>
#include <math.h>
#include <ARX/AR/ar.h>

Include dependency graph for paramChangeSize.c:

Functions
int	arParamChangeSize (ARParam *source, int xsize, int ysize, ARParam *newparam)
	Adjust the size of a camera parameter's viewing plane, e.g. to match a renderer frustum size.
int	arParamChangeSizeWithZoom (ARParam *source, int xsize, int ysize, ARdouble x_zoom, ARdouble y_zoom, ARParam *newparam)

Function Documentation

arParamChangeSize()

int arParamChangeSize	(	ARParam *	source,
		int	xsize,
		int	ysize,
		ARParam *	newparam
	)

Adjust the size of a camera parameter's viewing plane, e.g. to match a renderer frustum size.

Given a camera parameter structure, this function scales the camera paameter fundamental matrix, focal length and center, to match the passed-in view-plane size. This is often a size in pixels of the renderer frustum.

Parameters

source	Pointer to an ARParam structure which will be used as the source parameter.
xsize	The horizontal dimension of the desired camera image plane.
ysize	The vertical dimension of the desired camera image plane.
newparam	Pointer to an ARParam structure which will be filled with the resized parameter. This may be the same value as source, in which case the source parameter will be modified.

Returns

0 if the function completed successfully, or -1 in case of error.

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arParamChangeSizeWithZoom()

int arParamChangeSizeWithZoom	(	ARParam *	source,
		int	xsize,
		int	ysize,
		ARdouble	x_zoom,
		ARdouble	y_zoom,
		ARParam *	newparam
	)