mirror of
https://github.com/qgis/QGIS.git
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506 lines
14 KiB
Plaintext
506 lines
14 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsmapsettings.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 QgsMapSettings
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{
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%Docstring
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The QgsMapSettings class contains configuration for rendering of the map.
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The rendering itself is done by QgsMapRendererJob subclasses.
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In order to set up QgsMapSettings instance, it is necessary to set at least
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few members: extent, output size and layers.
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QgsMapSettings and QgsMapRendererJob (+subclasses) are intended to replace
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QgsMapRenderer class that existed before QGIS 2.4. The advantage of the new
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classes is that they separate the settings from the rendering and provide
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asynchronous API for map rendering.
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.. versionadded:: 2.4
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%End
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%TypeHeaderCode
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#include "qgsmapsettings.h"
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%End
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public:
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QgsMapSettings();
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QgsRectangle extent() const;
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%Docstring
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Returns geographical coordinates of the rectangle that should be rendered.
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The actual visible extent used for rendering could be slightly different
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since the given extent may be expanded in order to fit the aspect ratio
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of output size. Use visibleExtent() to get the resulting extent.
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%End
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void setExtent( const QgsRectangle &rect, bool magnified = true );
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%Docstring
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Set coordinates of the rectangle which should be rendered.
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The actual visible extent used for rendering could be slightly different
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since the given extent may be expanded in order to fit the aspect ratio
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of output size. Use visibleExtent() to get the resulting extent.
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%End
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QSize outputSize() const;
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%Docstring
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Returns the size of the resulting map image
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%End
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void setOutputSize( QSize size );
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%Docstring
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Sets the size of the resulting map image
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%End
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double rotation() const;
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%Docstring
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Returns the rotation of the resulting map image, in degrees clockwise.
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.. seealso:: :py:func:`setRotation`
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.. versionadded:: 2.8
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%End
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void setRotation( double rotation );
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%Docstring
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Sets the ``rotation`` of the resulting map image, in degrees clockwise.
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.. seealso:: :py:func:`rotation`
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.. versionadded:: 2.8
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%End
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double outputDpi() const;
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%Docstring
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Returns DPI used for conversion between real world units (e.g. mm) and pixels
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Default value is 96
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%End
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void setOutputDpi( double dpi );
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%Docstring
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Sets DPI used for conversion between real world units (e.g. mm) and pixels
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%End
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void setMagnificationFactor( double factor );
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%Docstring
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Set the magnification factor.
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:param factor: the factor of magnification
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.. seealso:: :py:func:`magnificationFactor`
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.. versionadded:: 2.16
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%End
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double magnificationFactor() const;
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%Docstring
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Returns the magnification factor.
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.. seealso:: :py:func:`setMagnificationFactor`
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.. versionadded:: 2.16
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%End
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QStringList layerIds() const;
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%Docstring
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Gets list of layer IDs for map rendering
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The layers are stored in the reverse order of how they are rendered (layer with index 0 will be on top)
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%End
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QList<QgsMapLayer *> layers() const;
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%Docstring
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Gets list of layers for map rendering
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The layers are stored in the reverse order of how they are rendered (layer with index 0 will be on top)
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%End
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void setLayers( const QList<QgsMapLayer *> &layers );
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%Docstring
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Set list of layers for map rendering. The layers must be registered in :py:class:`QgsProject`.
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The layers are stored in the reverse order of how they are rendered (layer with index 0 will be on top)
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.. note::
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Any non-spatial layers will be automatically stripped from the list (since they cannot be rendered!).
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%End
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QMap<QString, QString> layerStyleOverrides() const;
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%Docstring
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Gets map of map layer style overrides (key: layer ID, value: style name) where a different style should be used instead of the current one
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.. versionadded:: 2.8
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%End
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void setLayerStyleOverrides( const QMap<QString, QString> &overrides );
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%Docstring
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Set map of map layer style overrides (key: layer ID, value: style name) where a different style should be used instead of the current one
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.. versionadded:: 2.8
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%End
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QString customRenderFlags() const;
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%Docstring
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Gets custom rendering flags. Layers might honour these to alter their rendering.
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:return: custom flags strings, separated by ';'
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.. seealso:: :py:func:`setCustomRenderFlags`
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.. versionadded:: 2.16
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%End
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void setCustomRenderFlags( const QString &customRenderFlags );
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%Docstring
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Sets the custom rendering flags. Layers might honour these to alter their rendering.
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:param customRenderFlags: custom flags strings, separated by ';'
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.. seealso:: :py:func:`customRenderFlags`
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.. versionadded:: 2.16
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%End
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void setDestinationCrs( const QgsCoordinateReferenceSystem &crs );
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%Docstring
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sets destination coordinate reference system
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%End
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QgsCoordinateReferenceSystem destinationCrs() const;
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%Docstring
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returns CRS of destination coordinate reference system
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%End
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QgsUnitTypes::DistanceUnit mapUnits() const;
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%Docstring
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Gets units of map's geographical coordinates - used for scale calculation
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%End
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bool setEllipsoid( const QString &ellipsoid );
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%Docstring
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Sets the ``ellipsoid`` by its acronym. Known ellipsoid acronyms can be
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retrieved using :py:func:`QgsEllipsoidUtils.acronyms()`
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Calculations will only use the ellipsoid if a valid ellipsoid has been set.
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:return: true if ellipsoid was successfully set
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.. seealso:: :py:func:`ellipsoid`
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.. versionadded:: 3.0
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%End
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QString ellipsoid() const;
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%Docstring
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Returns ellipsoid's acronym. Calculations will only use the
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ellipsoid if a valid ellipsoid has been set.
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.. seealso:: :py:func:`setEllipsoid`
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.. versionadded:: 3.0
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%End
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void setBackgroundColor( const QColor &color );
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%Docstring
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Sets the background color of the map
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%End
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QColor backgroundColor() const;
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%Docstring
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Gets the background color of the map
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%End
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void setSelectionColor( const QColor &color );
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%Docstring
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Sets color that is used for drawing of selected vector features
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%End
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QColor selectionColor() const;
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%Docstring
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Gets color that is used for drawing of selected vector features
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%End
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enum Flag
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{
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Antialiasing,
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DrawEditingInfo,
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ForceVectorOutput,
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UseAdvancedEffects,
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DrawLabeling,
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UseRenderingOptimization,
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DrawSelection,
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DrawSymbolBounds,
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RenderMapTile,
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RenderPartialOutput,
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RenderPreviewJob,
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// TODO
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};
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typedef QFlags<QgsMapSettings::Flag> Flags;
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void setFlags( QgsMapSettings::Flags flags );
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%Docstring
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Sets combination of flags that will be used for rendering
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%End
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void setFlag( Flag flag, bool on = true );
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%Docstring
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Enable or disable a particular flag (other flags are not affected)
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%End
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Flags flags() const;
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%Docstring
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Returns combination of flags used for rendering
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%End
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bool testFlag( Flag flag ) const;
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%Docstring
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Check whether a particular flag is enabled
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%End
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void setOutputImageFormat( QImage::Format format );
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%Docstring
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sets format of internal QImage
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%End
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QImage::Format outputImageFormat() const;
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%Docstring
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format of internal QImage, default QImage.Format_ARGB32_Premultiplied
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%End
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bool hasValidSettings() const;
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%Docstring
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Check whether the map settings are valid and can be used for rendering
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%End
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QgsRectangle visibleExtent() const;
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%Docstring
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Returns the actual extent derived from requested extent that takes takes output image size into account
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%End
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QPolygonF visiblePolygon() const;
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%Docstring
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Returns the visible area as a polygon (may be rotated)
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.. versionadded:: 2.8
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%End
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double mapUnitsPerPixel() const;
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%Docstring
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Returns the distance in geographical coordinates that equals to one pixel in the map
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%End
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double scale() const;
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%Docstring
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Returns the calculated map scale.
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The scale value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
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%End
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void setExpressionContext( const QgsExpressionContext &context );
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%Docstring
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Sets the expression context. This context is used for all expression evaluation
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associated with this map settings.
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.. seealso:: :py:func:`expressionContext`
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.. versionadded:: 2.12
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%End
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const QgsExpressionContext &expressionContext() const;
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%Docstring
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Gets the expression context. This context should be used for all expression evaluation
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associated with this map settings.
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.. seealso:: :py:func:`setExpressionContext`
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.. versionadded:: 2.12
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%End
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QgsCoordinateTransformContext transformContext() const;
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%Docstring
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Returns the coordinate transform context, which stores various
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information regarding which datum transforms should be used when transforming points
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from a source to destination coordinate reference system.
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.. seealso:: :py:func:`setTransformContext`
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.. versionadded:: 3.0
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%End
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void setTransformContext( const QgsCoordinateTransformContext &context );
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%Docstring
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Sets the coordinate transform ``context``, which stores various
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information regarding which datum transforms should be used when transforming points
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from a source to destination coordinate reference system.
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.. seealso:: :py:func:`transformContext`
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.. versionadded:: 3.0
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%End
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const QgsPathResolver &pathResolver() const;
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%Docstring
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Returns the path resolver for conversion between relative and absolute paths
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during rendering operations, e.g. for resolving relative symbol paths.
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.. seealso:: :py:func:`setPathResolver`
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.. versionadded:: 3.0
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%End
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void setPathResolver( const QgsPathResolver &resolver );
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%Docstring
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Sets the path ``resolver`` for conversion between relative and absolute paths
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during rendering operations, e.g. for resolving relative symbol paths.
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.. seealso:: :py:func:`pathResolver`
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.. versionadded:: 3.0
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%End
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const QgsMapToPixel &mapToPixel() const;
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double layerToMapUnits( const QgsMapLayer *layer, const QgsRectangle &referenceExtent = QgsRectangle() ) const;
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%Docstring
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Computes an *estimated* conversion factor between layer and map units: layerUnits * layerToMapUnits = mapUnits
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:param layer: The layer
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:param referenceExtent: A reference extent based on which to perform the computation. If not specified, the layer extent is used
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.. versionadded:: 2.12
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%End
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QgsRectangle layerExtentToOutputExtent( const QgsMapLayer *layer, QgsRectangle extent ) const;
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%Docstring
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transform bounding box from layer's CRS to output CRS
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.. seealso:: :py:func:`layerToMapCoordinates`
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:return: a bounding box (aligned rectangle) containing the transformed extent
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%End
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QgsRectangle outputExtentToLayerExtent( const QgsMapLayer *layer, QgsRectangle extent ) const;
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%Docstring
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transform bounding box from output CRS to layer's CRS
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.. seealso:: :py:func:`mapToLayerCoordinates`
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:return: a bounding box (aligned rectangle) containing the transformed extent
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%End
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QgsPointXY layerToMapCoordinates( const QgsMapLayer *layer, QgsPointXY point ) const;
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%Docstring
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transform point coordinates from layer's CRS to output CRS
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:return: the transformed point
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%End
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QgsRectangle layerToMapCoordinates( const QgsMapLayer *layer, QgsRectangle rect ) const;
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%Docstring
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transform rectangle from layer's CRS to output CRS
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.. seealso:: :py:func:`layerExtentToOutputExtent`
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:return: the transformed rectangle
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%End
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QgsPointXY mapToLayerCoordinates( const QgsMapLayer *layer, QgsPointXY point ) const;
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%Docstring
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transform point coordinates from output CRS to layer's CRS
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:return: the transformed point
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%End
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QgsRectangle mapToLayerCoordinates( const QgsMapLayer *layer, QgsRectangle rect ) const;
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%Docstring
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transform rectangle from output CRS to layer's CRS
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.. seealso:: :py:func:`outputExtentToLayerExtent`
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:return: the transformed rectangle
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%End
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QgsCoordinateTransform layerTransform( const QgsMapLayer *layer ) const;
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%Docstring
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Returns the coordinate transform from layer's CRS to destination CRS
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:return: transform - may be invalid if the transform is not needed
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%End
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QgsRectangle fullExtent() const;
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%Docstring
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returns current extent of layer set
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%End
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void readXml( QDomNode &node );
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%Docstring
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serialization */
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%End
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void writeXml( QDomNode &node, QDomDocument &doc );
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void setSegmentationTolerance( double tolerance );
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%Docstring
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Sets the segmentation tolerance applied when rendering curved geometries
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:param tolerance: the segmentation tolerance*
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%End
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double segmentationTolerance() const;
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%Docstring
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Gets the segmentation tolerance applied when rendering curved geometries
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%End
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void setSegmentationToleranceType( QgsAbstractGeometry::SegmentationToleranceType type );
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%Docstring
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Sets segmentation tolerance type (maximum angle or maximum difference between curve and approximation)
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:param type: the segmentation tolerance typename*
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%End
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QgsAbstractGeometry::SegmentationToleranceType segmentationToleranceType() const;
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%Docstring
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Gets segmentation tolerance type (maximum angle or maximum difference between curve and approximation)
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%End
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void setLabelingEngineSettings( const QgsLabelingEngineSettings &settings );
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%Docstring
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Sets global configuration of the labeling engine
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.. versionadded:: 3.0
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%End
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const QgsLabelingEngineSettings &labelingEngineSettings() const;
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%Docstring
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Returns global configuration of the labeling engine
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.. versionadded:: 3.0
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%End
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protected:
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void updateDerived();
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};
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QFlags<QgsMapSettings::Flag> operator|(QgsMapSettings::Flag f1, QFlags<QgsMapSettings::Flag> f2);
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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/qgsmapsettings.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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