SceneCoordinate Class Reference

Scene coordinate. More...

#include <scenecoordinate.h>

List of all members.

Public Member Functions
	SceneCoordinate ()
	Constructs a null coordinate.
	SceneCoordinate (double x, double y)
	Constructs a coordinate with given x and y.
	SceneCoordinate (const GeoCoordinate &coordinate)
	Constructs a coordinate with values converted from the given GeoCoordinate.
qreal	azimuthTo (const SceneCoordinate &to) const
	Returns the azimuth from this coordinate to other coordinate.
bool	isNull () const
	Check if coordinate is (0.0, 0.0).
void	setX (double x)
	Sets the latitude.
void	setY (double y)
	Sets the longitude.
QPointF	toPointF () const
	Convert to QPointF.
double	x () const
	Returns the x value.
double	y () const
	Returns the y value.
	operator QVariant () const
	Operator for creating QVariant.
SceneCoordinate &	operator*= (double factor)
	Multiplies this coordinate's values by the given factor, and returns a reference to this coordinate.
SceneCoordinate &	operator+= (const SceneCoordinate &coordinate)
	Adds the given coordinate to this coordinate and returns a reference to this coordinate.
SceneCoordinate &	operator-= (const SceneCoordinate &coordinate)
	Subtracts the given coordinate from this coordinate and returns a reference to this coordinate.
const SceneCoordinate	operator+ (const SceneCoordinate &other) const
	Returns a SceneCoordinate object that is the sum of the coordinates.
const SceneCoordinate	operator- (const SceneCoordinate &other) const
	Returns a SceneCoordinate object that is formed by subtracting the coordinates.
Private Member Functions
void	convertFrom (const GeoCoordinate &coordinate)
	Convert values from GeoCoordinate.
void	normalize (double &value, int min, int max)
	Translate integer part of the given value between min and max.
Private Attributes
double	m_x
	X value.
double	m_y
	Y value.

---

Detailed Description

Scene coordinate.

Author:

Sami Rämö - sami.ramo@ixonos.com

---

Constructor & Destructor Documentation

SceneCoordinate::SceneCoordinate	(	double	x,
		double	y
	)

Constructs a coordinate with given x and y.

Parameters:

	x	X value
	y	Y value

SceneCoordinate::SceneCoordinate

(

const GeoCoordinate &

coordinate

)

Constructs a coordinate with values converted from the given GeoCoordinate.

Uses convertFrom() method.

Parameters:

coordinate

Geological coordinate

---

Member Function Documentation

qreal SceneCoordinate::azimuthTo

(

const SceneCoordinate &

to

)

const

Returns the azimuth from this coordinate to other coordinate.

Zero is pointing to north. Returned value is from 0 to 360.

Parameters:

to

Target coordinate

Returns:

Azimuth in degrees

void SceneCoordinate::convertFrom

(

const GeoCoordinate &

coordinate

)

[private]

Convert values from GeoCoordinate.

Does run normalize() for the x value after the conversion to make sure that the result is inside the allowed map pixel values.

In horizontal direction: -180º equals scene pixel 0 (first scene pixel) +180º equals -180º

scene has 2^18 * 256 - 1 = 67108864 pixels per side one pixel width is 360º / 67108864 = 0.00000536441802978516º so the last scene pixel is 180º - 0.00000536441802978516º = 179.99999463558197021484º

Parameters:

coordinate

Geological coordinate

bool SceneCoordinate::isNull

(

)

const

Check if coordinate is (0.0, 0.0).

Returns:

True if both X and Y are 0.0, otherwise false

void SceneCoordinate::normalize	(	double &	value,
		int	min,
		int	max
	)			[private]

Translate integer part of the given value between min and max.

If given value is not inside the given range (min <= value <= max), then the allowed range is adder or subtracted until the value does fit in the range. Only integer part is compared.

Parameters:

	value	Value to be normalized
	min	Minimum allowed value
	max	Maximum allowed value

void SceneCoordinate::setX

(

double

x

)

Sets the latitude.

Parameters:

x

X value

void SceneCoordinate::setY

(

double

y

)

Sets the longitude.

Parameters:

y

Y value

QPointF SceneCoordinate::toPointF

(

)

const

Convert to QPointF.

Returns:

a QPointF object

double SceneCoordinate::x

(

)

const

Returns the x value.

Returns:

x

double SceneCoordinate::y

(

)

const

Returns the y value.

Returns:

y

---

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

• src/coordinates/scenecoordinate.h
• src/coordinates/scenecoordinate.cpp