Okular::NormalizedPoint Class Reference

#include <area.h>

Public Member Functions
	NormalizedPoint ()
	NormalizedPoint (double x, double y)
	NormalizedPoint (int x, int y, int xScale, int yScale)
double	distanceSqr (double x, double y, double xScale, double yScale) const
NormalizedPoint &	operator= (const NormalizedPoint &)
void	transform (const QTransform &matrix)

Static Public Member Functions
static double	distanceSqr (double x, double y, double xScale, double yScale, const NormalizedPoint &start, const NormalizedPoint &end)

Public Attributes
double	x
double	y

Detailed Description

NormalizedPoint is a helper class which stores the coordinates of a normalized point.

Normalized means that the coordinates are between 0 and 1 so that it is page size independent.

Example: The normalized point is (0.5, 0.3)

If you want to draw it on a 800x600 page, just multiply the x coordinate (0.5) with the page width (800) and the y coordinate (0.3) with the page height (600), so the point will be drawn on the page at (400, 180).

That allows you to zoom the page by just multiplying the normalized points with the zoomed page size.

Definition at line 47 of file area.h.

Constructor & Destructor Documentation

NormalizedPoint::NormalizedPoint

(

)

Creates a new empty normalized point.

class NormalizedPoint

Definition at line 27 of file area.cpp.

NormalizedPoint::NormalizedPoint	(	double	x,
		double	y
	)

Creates a new normalized point with the normalized coordinates (x, y ).

Definition at line 30 of file area.cpp.

NormalizedPoint::NormalizedPoint	(	int	x,
		int	y,
		int	xScale,
		int	yScale
	)

Creates a new normalized point with the coordinates (x, y) which are normalized by the scaling factors xScale and yScale.

Definition at line 33 of file area.cpp.

Member Function Documentation

double NormalizedPoint::distanceSqr	(	double	x,
		double	y,
		double	xScale,
		double	yScale
	)		const

Returns squared distance to point x y xScale yScale.

Since

0.17 (KDE 4.11)

Definition at line 52 of file area.cpp.

double NormalizedPoint::distanceSqr ( double  x, double  y, double  xScale, double  yScale, const NormalizedPoint &  start, const NormalizedPoint &  end  )

static

Calculates distance of the point x y xScale yScale to the line segment from start to end.

Since

0.17 (KDE 4.11)

Definition at line 69 of file area.cpp.

NormalizedPoint & NormalizedPoint::operator=

(

const NormalizedPoint &

p

)

Definition at line 36 of file area.cpp.

void NormalizedPoint::transform

(

const QTransform &

matrix

)

Transforms the normalized point with the operations defined by matrix.

Definition at line 43 of file area.cpp.

Member Data Documentation

double Okular::NormalizedPoint::x

The normalized x coordinate.

Definition at line 92 of file area.h.

double Okular::NormalizedPoint::y

The normalized y coordinate.

Definition at line 97 of file area.h.

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The documentation for this class was generated from the following files:

• area.h
• area.cpp