osmscout::OpenGLProjection Class Reference

#include <OpenGLProjection.h>

Inheritance diagram for osmscout::OpenGLProjection:

Public Member Functions
	OpenGLProjection ()=default
	OpenGLProjection (const OpenGLProjection &)=default
	OpenGLProjection (OpenGLProjection &&)=default
OpenGLProjection &	operator= (const OpenGLProjection &)=default
OpenGLProjection &	operator= (OpenGLProjection &&)=default
void	SetShaderUniforms (GLuint shaderProgram) const
	Setup projection shader uniforms.
	~OpenGLProjection () override=default
Public Member Functions inherited from osmscout::MercatorProjection
bool	CanBatch () const override
bool	GeoToPixel (const GeoCoord &coord, Vertex2D &pixel) const override
	Converts a geo coordinate to a pixel coordinate.
bool	IsLinearInterpolationEnabled () const
bool	IsValid () const override
bool	IsValidFor (const GeoCoord &coord) const override
	Return true if given coordinate is valid for this projection.
	MercatorProjection ()=default
	MercatorProjection (const MercatorProjection &)=default
	MercatorProjection (MercatorProjection &&)=default
bool	Move (double horizPixel, double vertPixel)
bool	MoveDown (double pixel)
bool	MoveLeft (double pixel)
bool	MoveRight (double pixel)
bool	MoveUp (double pixel)
MercatorProjection &	operator= (const MercatorProjection &)=default
MercatorProjection &	operator= (MercatorProjection &&)=default
bool	PixelToGeo (double x, double y, GeoCoord &coord) const override
	Converts a pixel coordinate to a geo coordinate.
bool	Set (const GeoCoord &coord, const Magnification &magnification, double dpi, size_t width, size_t height)
bool	Set (const GeoCoord &coord, const Magnification &magnification, size_t width, size_t height)
bool	Set (const GeoCoord &coord, double angle, const Magnification &magnification, double dpi, size_t width, size_t height)
	Setup projection parameters.
bool	Set (const GeoCoord &coord, double angle, const Magnification &magnification, size_t width, size_t height)
void	SetLinearInterpolationUsage (bool useLinearInterpolation)
	Switch to enable/disable linear interpolation of latitude to pixel computation.
	~MercatorProjection () override=default
Public Member Functions inherited from osmscout::Projection
bool	BoundingBoxToPixel (const GeoBox &boundingBox, ScreenBox &screenBox) const
	Converts a valid GeoBox to its on screen pixel coordinates.
double	ConvertPixelToWidth (double pixel) const
	Convert a width in pixel into the equivalent mm size based on the given DPI.
double	ConvertWidthToPixel (double width) const
	Convert a width in mm into the equivalent pixel size based on the given DPI.
double	GetAngle () const
	Returns the angle in radians ([0..2*PI[) of the display in relation to the north.
GeoCoord	GetCenter () const
GeoBox	GetDimensions () const
double	GetDPI () const
	Return the DPI as part of the projection.
size_t	GetHeight () const
	Returns the height of the screen.
Magnification	GetMagnification () const
	Return the magnification as part of the projection.
double	GetMeterInMM () const
	Returns the number of on screen millimeters for one meter on the ground.
double	GetMeterInPixel () const
	Returns the number of on screen pixel for one meter on the ground.
double	GetPixelSize () const
	Returns the size of a pixel in meter.
ScreenBox	GetScreenBox () const
	Return a ScreenBox instance for the screen.
size_t	GetWidth () const
	Returns the width of the screen.
Projection &	operator= (const Projection &)=default
Projection &	operator= (Projection &&)=default
	Projection ()=default
	Projection (const Projection &)=default
	Projection (Projection &&)=default
virtual	~Projection ()=default

Additional Inherited Members
Static Public Attributes inherited from osmscout::MercatorProjection
static const double	MaxLat = +85.0511
static const double	MaxLon = +180.0
static const double	MinLat = -85.0511
static const double	MinLon = -180.0
Protected Member Functions inherited from osmscout::MercatorProjection
void	GeoToPixel (const BatchTransformer &transformData) const override
Protected Attributes inherited from osmscout::MercatorProjection
double	angleCos =0.0
double	angleNegCos =0.0
double	angleNegSin =0.0
double	angleSin =0.0
double	latOffset =0.0
	Absolute and untransformed screen position of lat coordinate.
double	scale =1.0
double	scaledLatDeriv =0.0
	precalculated derivation of "latToYPixel" function in projection
double	scaleGradtorad =0.0
	Precalculated scale*Gradtorad.
bool	useLinearInterpolation =false
	switch to enable linear interpolation of latitude to pixel computation
bool	valid =false
	projection is valid
Protected Attributes inherited from osmscout::Projection
double	angle =0.0
	Display rotation angle in radians, canvas clockwise.
GeoBox	boundingBox
	Bounding box of the current projection on the ground.
GeoCoord	center
	Coordinate of the center of the displayed area.
double	dpi =0.0
	Screen DPI.
size_t	height =0
	Height of image.
Magnification	magnification
	Current magnification.
double	meterInMM =0.0
	Number of on screen millimeters for one meter on the ground.
double	meterInPixel =0.0
	Number of on screen pixel for one meter on the ground.
double	pixelSize =0.0
	Size of a pixel in meter.
size_t	width =0
	Width of image.

Constructor & Destructor Documentation

OpenGLProjection() [1/3]

osmscout::OpenGLProjection::OpenGLProjection ( )

default

OpenGLProjection() [2/3]

osmscout::OpenGLProjection::OpenGLProjection ( const OpenGLProjection &  )

default

OpenGLProjection() [3/3]

osmscout::OpenGLProjection::OpenGLProjection ( OpenGLProjection &&  )

default

~OpenGLProjection()

osmscout::OpenGLProjection::~OpenGLProjection ( )

overridedefault

Member Function Documentation

operator=() [1/2]

OpenGLProjection & osmscout::OpenGLProjection::operator= ( const OpenGLProjection &  )

default

operator=() [2/2]

OpenGLProjection & osmscout::OpenGLProjection::operator= ( OpenGLProjection &&  )

default

SetShaderUniforms()

void osmscout::OpenGLProjection::SetShaderUniforms ( GLuint  shaderProgram ) const

inline

Setup projection shader uniforms.

Parameters

shaderProgram

Referenced by osmscout::OpenGLMapData< TexturePixelType, TexturePixelSize >::SetMapProjection().

---

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

• OpenGLProjection.h