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261 lines
6.9 KiB
Plaintext
261 lines
6.9 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsmaptopixel.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsMapToPixel
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{
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%Docstring(signature="appended")
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Perform transforms between map coordinates and device coordinates.
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This class can convert device coordinates to map coordinates and vice versa.
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%End
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%TypeHeaderCode
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#include "qgsmaptopixel.h"
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%End
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public:
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QgsMapToPixel();
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%Docstring
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Constructor for an invalid QgsMapToPixel.
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A manual call to :py:func:`~QgsMapToPixel.setParameters` is required to initialize the object.
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%End
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QgsMapToPixel( double mapUnitsPerPixel, double centerX, double centerY, int widthPixels, int heightPixels, double rotation );
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%Docstring
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Constructor
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:param mapUnitsPerPixel: Map units per pixel
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:param centerX: X coordinate of map center, in geographical units
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:param centerY: Y coordinate of map center, in geographical units
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:param widthPixels: Output width, in pixels
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:param heightPixels: Output height, in pixels
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:param rotation: clockwise rotation in degrees
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.. versionadded:: 2.8
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%End
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QgsMapToPixel( double mapUnitsPerPixel );
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%Docstring
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Constructor
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:param mapUnitsPerPixel: Map units per pixel
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%End
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static QgsMapToPixel fromScale( double scale, QgsUnitTypes::DistanceUnit mapUnits, double dpi = 96 );
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%Docstring
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Returns a new QgsMapToPixel created using a specified ``scale`` and distance unit.
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:param scale: map scale denominator, e.g. 1000.0 for a 1:1000 map.
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:param dpi: screen DPI
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:param mapUnits: map units
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:return: matching QgsMapToPixel
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.. versionadded:: 3.0
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%End
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bool isValid() const;
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%Docstring
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Returns ``True`` if the object is valid (i.e. it has parameters set), or ``False`` if the object is default constructed
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with no parameters set.
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.. versionadded:: 3.22
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%End
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QgsPointXY transform( const QgsPointXY &p ) const;
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%Docstring
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Transforms a point ``p`` from map (world) coordinates to device coordinates.
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:param p: Point to transform
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:return: :py:class:`QgsPointXY` in device coordinates
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%End
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void transform( QgsPointXY *p ) const;
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%Docstring
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Transforms a point ``p`` from map (world) coordinates to device coordinates in place.
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%End
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QgsPointXY transform( qreal x, qreal y ) const;
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%Docstring
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Transforms the point specified by x,y from map (world) coordinates to device coordinates.
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:param x: x coordinate of point to transform
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:param y: y coordinate of point to transform
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:return: :py:class:`QgsPointXY` in device coordinates
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%End
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void transformInPlace( double &x, double &y ) const;
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%Docstring
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Transforms device coordinates to map coordinates.
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This method modifies the given coordinates in place. It is intended as a fast way to do the
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transform.
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%End
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QgsPointXY toMapCoordinates( int x, int y ) const;
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%Docstring
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Transforms device coordinates to map (world) coordinates.
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%End
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QgsPointXY toMapCoordinates( double x, double y ) const /PyName=toMapCoordinatesF/;
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%Docstring
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Transforms device coordinates to map (world) coordinates.
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%End
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QgsPointXY toMapCoordinates( QPoint p ) const;
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%Docstring
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Transforms device coordinates to map (world) coordinates.
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:param p: Point to be converted to map cooordinates
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:return: :py:class:`QgsPointXY` in map coorndiates
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%End
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QgsPointXY toMapPoint( double x, double y ) const /Deprecated/;
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%Docstring
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Transforms device coordinates to map (world) coordinates.
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.. deprecated:: QGIS 3.4
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use toMapCoordinates instead
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%End
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void setMapUnitsPerPixel( double mapUnitsPerPixel );
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%Docstring
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Sets the map units per pixel.
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Calling this method will automatically set the object as valid.
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:param mapUnitsPerPixel: Map units per pixel
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.. seealso:: :py:func:`mapUnitsPerPixel`
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%End
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double mapUnitsPerPixel() const;
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%Docstring
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Returns the current map units per pixel.
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.. seealso:: :py:func:`setMapUnitsPerPixel`
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%End
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int mapWidth() const;
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%Docstring
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Returns the current map width in pixels.
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The information is only known if setRotation was used.
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.. seealso:: :py:func:`mapHeight`
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.. versionadded:: 2.8
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%End
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int mapHeight() const;
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%Docstring
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Returns current map height in pixels
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.. seealso:: :py:func:`mapWidth`
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.. versionadded:: 2.8
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%End
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void setMapRotation( double degrees, double cx, double cy );
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%Docstring
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Sets map rotation in ``degrees`` (clockwise).
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Calling this method will automatically set the object as valid.
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:param degrees: clockwise rotation in degrees
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:param cx: X ordinate of map center in geographical units
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:param cy: Y ordinate of map center in geographical units
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.. seealso:: :py:func:`mapRotation`
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.. versionadded:: 2.8
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%End
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double mapRotation() const;
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%Docstring
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Returns the current map rotation in degrees (clockwise).
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.. seealso:: :py:func:`setMapRotation`
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.. versionadded:: 2.8
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%End
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void setParameters( double mapUnitsPerPixel, double centerX, double centerY, int widthPixels, int heightPixels, double rotation );
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%Docstring
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Sets parameters for use in transforming coordinates.
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Calling this method will automatically set the object as valid.
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:param mapUnitsPerPixel: Map units per pixel
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:param centerX: X coordinate of map center, in geographical units
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:param centerY: Y coordinate of map center, in geographical units
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:param widthPixels: Output width, in pixels
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:param heightPixels: Output height, in pixels
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:param rotation: clockwise rotation in degrees
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.. note::
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if the specified parameters result in an invalid transform then no changes will be applied to the object
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.. versionadded:: 2.8
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%End
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QString showParameters() const;
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%Docstring
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Returns a string representation of the parameters used in the transform.
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%End
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QTransform transform() const;
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%Docstring
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Returns a QTransform encapsulating the map to pixel conversion.
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%End
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double xCenter() const;
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%Docstring
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Returns the center x-coordinate for the transform.
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.. seealso:: :py:func:`yCenter`
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.. versionadded:: 3.0
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%End
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double yCenter() const;
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%Docstring
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Returns the center y-coordinate for the transform.
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.. seealso:: :py:func:`xCenter`
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.. versionadded:: 3.0
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%End
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bool operator==( const QgsMapToPixel &other ) const;
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bool operator!=( const QgsMapToPixel &other ) const;
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsmaptopixel.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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