Class MapToScreen

ClassList > MapToScreen

The MapToScreen class transform a map point to screen coordinates. The map point CRS is the one from the map settings. Screen point will be automatically updated on map extent changes.

• #include <maptoscreen.h>

Inherits the following classes: QObject

Public Properties

Type	Name
property double	mapDistance the distance in map unit
property QgsPoint	mapPoint the point in map coordinates
property QgsQuickMapSettings *	mapSettings Map settings is used to define the map canvas CRS and detect any extent change.
property double	screenDistance the distance in screen coordinates (read-only)
property QPointF	screenPoint the point in screen coordinates (read-only)

Public Signals

Type	Name
signal void	mapDistanceChanged the distance in map unit
signal void	mapPointChanged the point in map coordinates
signal void	mapSettingsChanged Map settings is used to define the map canvas CRS and detect any extent change.
signal void	screenDistanceChanged the distance in screen coordinates (read-only)
signal void	screenPointChanged the point in screen coordinates (read-only)

Public Functions

Type	Name
	MapToScreen (QObject * parent=nullptr)
double	mapDistance () const the distance in map unit
QgsPoint	mapPoint () const the point in map coordinates
QgsQuickMapSettings *	mapSettings () const Map settings is used to define the map canvas CRS and detect any extent change.
double	screenDistance () const the distance in screen coordinates (read-only)
QPointF	screenPoint () const the point in screen coordinates (read-only)
void	setMapDistance (const double distance) the distance in map unit
void	setMapPoint (const QgsPoint & point) the point in map coordinates
void	setMapSettings (QgsQuickMapSettings * mapSettings) Map settings is used to define the map canvas CRS and detect any extent change.

Public Properties Documentation

property mapDistance [1/2]

the distance in map unit

double MapToScreen::mapDistance;

---

property mapPoint [1/2]

the point in map coordinates

QgsPoint MapToScreen::mapPoint;

---

property mapSettings [1/2]

Map settings is used to define the map canvas CRS and detect any extent change.

QgsQuickMapSettings * MapToScreen::mapSettings;

---

property screenDistance [1/2]

the distance in screen coordinates (read-only)

double MapToScreen::screenDistance;

---

property screenPoint [1/2]

the point in screen coordinates (read-only)

QPointF MapToScreen::screenPoint;

---

Public Signals Documentation

signal mapDistanceChanged

the distance in map unit

void MapToScreen::mapDistanceChanged;

---

signal mapPointChanged

the point in map coordinates

void MapToScreen::mapPointChanged;

---

signal mapSettingsChanged

Map settings is used to define the map canvas CRS and detect any extent change.

void MapToScreen::mapSettingsChanged;

---

signal screenDistanceChanged

the distance in screen coordinates (read-only)

void MapToScreen::screenDistanceChanged;

---

signal screenPointChanged

the point in screen coordinates (read-only)

void MapToScreen::screenPointChanged;

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Public Functions Documentation

function MapToScreen

explicit MapToScreen::MapToScreen (
    QObject * parent=nullptr
) 

---

function mapDistance [2/2]

the distance in map unit

double MapToScreen::mapDistance () const

---

function mapPoint [2/2]

the point in map coordinates

QgsPoint MapToScreen::mapPoint () const

---

function mapSettings [2/2]

Map settings is used to define the map canvas CRS and detect any extent change.

QgsQuickMapSettings * MapToScreen::mapSettings () const

---

function screenDistance [2/2]

the distance in screen coordinates (read-only)

double MapToScreen::screenDistance () const

---

function screenPoint [2/2]

the point in screen coordinates (read-only)

QPointF MapToScreen::screenPoint () const

---

function setMapDistance

the distance in map unit

void MapToScreen::setMapDistance (
    const double distance
) 

---

function setMapPoint

the point in map coordinates

void MapToScreen::setMapPoint (
    const QgsPoint & point
) 

---

function setMapSettings

Map settings is used to define the map canvas CRS and detect any extent change.

void MapToScreen::setMapSettings (
    QgsQuickMapSettings * mapSettings
) 

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The documentation for this class was generated from the following file src/core/maptoscreen.h