QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
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Renders point clouds by a classification attribute. More...
#include <qgspointcloudclassifiedrenderer.h>
Public Member Functions | |
QgsPointCloudClassifiedRenderer (const QString &attributeName=QString(), const QgsPointCloudCategoryList &categories=QgsPointCloudCategoryList()) | |
Constructor for QgsPointCloudClassifiedRenderer. | |
void | addCategory (const QgsPointCloudCategory &category) |
Adds a category to the renderer. | |
QString | attribute () const |
Returns the attribute to use for the renderer. | |
QgsPointCloudCategoryList | categories () const |
Returns the classification categories used for rendering. | |
void | checkLegendItem (const QString &key, bool state=true) override |
Called when the check state of the legend item with the specified key is changed. | |
QgsPointCloudRenderer * | clone () const override |
Create a deep copy of this renderer. | |
QList< QgsLayerTreeModelLegendNode * > | createLegendNodes (QgsLayerTreeLayer *nodeLayer) override |
Creates a set of legend nodes representing the renderer. | |
bool | legendItemChecked (const QString &key) override |
Returns true if the legend item with the specified key is checked. | |
QStringList | legendRuleKeys () const override |
Returns a list of all rule keys for legend nodes created by the renderer. | |
std::unique_ptr< QgsPreparedPointCloudRendererData > | prepare () override |
Returns prepared data container for bulk point color retrieval. | |
void | renderBlock (const QgsPointCloudBlock *block, QgsPointCloudRenderContext &context) override |
Renders a block of point cloud data using the specified render context. | |
QDomElement | save (QDomDocument &doc, const QgsReadWriteContext &context) const override |
Saves the renderer configuration to an XML element. | |
void | setAttribute (const QString &attribute) |
Sets the attribute to use for the renderer. | |
void | setCategories (const QgsPointCloudCategoryList &categories) |
Sets the classification categories used for rendering. | |
QString | type () const override |
Returns the identifier of the renderer type. | |
QSet< QString > | usedAttributes (const QgsPointCloudRenderContext &context) const override |
Returns a list of attributes required by this renderer. | |
bool | willRenderPoint (const QVariantMap &pointAttributes) override |
Public Member Functions inherited from QgsPointCloudRenderer | |
QgsPointCloudRenderer ()=default | |
QgsPointCloudRenderer (const QgsPointCloudRenderer &other)=delete | |
QgsPointCloudRenderer cannot be copied – use clone() instead. | |
virtual | ~QgsPointCloudRenderer ()=default |
Qgis::PointCloudDrawOrder | drawOrder2d () const |
Returns the drawing order used by the renderer for drawing points. | |
bool | horizontalTriangleFilter () const |
Returns whether large triangles will get rendered. | |
double | horizontalTriangleFilterThreshold () const |
Returns threshold for filtering of triangles. | |
Qgis::RenderUnit | horizontalTriangleFilterUnit () const |
Returns units of the threshold for filtering of triangles. | |
QVector< QVariantMap > | identify (QgsPointCloudLayer *layer, const QgsRenderContext &context, const QgsGeometry &geometry, double toleranceForPointIdentification=0) |
Returns the list of visible points of the point cloud layer layer and an extent defined by a geometry in the 2D plane geometry. | |
double | maximumScreenError () const |
Returns the maximum screen error allowed when rendering the point cloud. | |
Qgis::RenderUnit | maximumScreenErrorUnit () const |
Returns the unit for the maximum screen error allowed when rendering the point cloud. | |
QgsPointCloudRenderer & | operator= (const QgsPointCloudRenderer &other)=delete |
QgsPointCloudRenderer cannot be copied – use clone() instead. | |
double | pointSize () const |
Returns the point size. | |
const QgsMapUnitScale & | pointSizeMapUnitScale () const |
Returns the map unit scale used for the point size. | |
Qgis::RenderUnit | pointSizeUnit () const |
Returns the units used for the point size. | |
Qgis::PointCloudSymbol | pointSymbol () const |
Returns the symbol used by the renderer for drawing points. | |
bool | renderAsTriangles () const |
Returns whether points are triangulated to render solid surface. | |
void | setDrawOrder2d (Qgis::PointCloudDrawOrder order) |
Sets the drawing order used by the renderer for drawing points. | |
void | setHorizontalTriangleFilter (bool enabled) |
Sets whether large triangles will get rendered. | |
void | setHorizontalTriangleFilterThreshold (double threshold) |
Sets threshold for filtering of triangles. | |
void | setHorizontalTriangleFilterUnit (Qgis::RenderUnit unit) |
Sets units of the threshold for filtering of triangles. | |
void | setMaximumScreenError (double error) |
Sets the maximum screen error allowed when rendering the point cloud. | |
void | setMaximumScreenErrorUnit (Qgis::RenderUnit unit) |
Sets the unit for the maximum screen error allowed when rendering the point cloud. | |
void | setPointSize (double size) |
Sets the point size. | |
void | setPointSizeMapUnitScale (const QgsMapUnitScale &scale) |
Sets the map unit scale used for the point size. | |
void | setPointSizeUnit (const Qgis::RenderUnit units) |
Sets the units used for the point size. | |
void | setPointSymbol (Qgis::PointCloudSymbol symbol) |
Sets the symbol used by the renderer for drawing points. | |
void | setRenderAsTriangles (bool asTriangles) |
Sets whether points are triangulated to render solid surface. | |
virtual void | startRender (QgsPointCloudRenderContext &context) |
Must be called when a new render cycle is started. | |
virtual void | stopRender (QgsPointCloudRenderContext &context) |
Must be called when a render cycle has finished, to allow the renderer to clean up. | |
virtual bool | willRenderPoint (const QMap< QString, QVariant > &pointAttributes) |
Checks whether the point holding pointAttributes attributes will be rendered By default if not overridden in the subclass renderer will return true ( the renderer is responsible for the filtering behavior ) | |
Static Public Member Functions | |
static QgsPointCloudRenderer * | create (QDomElement &element, const QgsReadWriteContext &context) |
Creates an RGB renderer from an XML element. | |
static QgsPointCloudCategoryList | defaultCategories () |
Returns the default list of categories. | |
Static Public Member Functions inherited from QgsPointCloudRenderer | |
static QgsPointCloudRenderer * | load (QDomElement &element, const QgsReadWriteContext &context) |
Creates a renderer from an XML element. | |
Additional Inherited Members | |
Protected Member Functions inherited from QgsPointCloudRenderer | |
void | addPointToTriangulation (double x, double y, double z, const QColor &color, QgsPointCloudRenderContext &context) |
Adds a point to the list of points to be triangulated (only used when renderAsTriangles() is enabled) | |
void | copyCommonProperties (QgsPointCloudRenderer *destination) const |
Copies common point cloud properties (such as point size and screen error) to the destination renderer. | |
void | drawPoint (double x, double y, const QColor &color, int width, QgsPointCloudRenderContext &context) const |
Draws a point using a color and painter width at the specified x and y (in map coordinates). | |
void | drawPoint (double x, double y, const QColor &color, QgsPointCloudRenderContext &context) const |
Draws a point using a color at the specified x and y (in map coordinates). | |
void | drawPointToElevationMap (double x, double y, double z, int width, QgsPointCloudRenderContext &context) const |
Draws a point at the elevation z using at the specified x and y (in map coordinates) and painter width on the elevation map. | |
void | drawPointToElevationMap (double x, double y, double z, QgsPointCloudRenderContext &context) const |
Draws a point at the elevation z using at the specified x and y (in map coordinates) on the elevation map. | |
void | restoreCommonProperties (const QDomElement &element, const QgsReadWriteContext &context) |
Restores common renderer properties (such as point size and screen error) from the specified DOM element. | |
void | saveCommonProperties (QDomElement &element, const QgsReadWriteContext &context) const |
Saves common renderer properties (such as point size and screen error) to the specified DOM element. | |
Static Protected Member Functions inherited from QgsPointCloudRenderer | |
static void | pointXY (QgsPointCloudRenderContext &context, const char *ptr, int i, double &x, double &y) |
Retrieves the x and y coordinate for the point at index i. | |
static double | pointZ (QgsPointCloudRenderContext &context, const char *ptr, int i) |
Retrieves the z value for the point at index i. | |
Renders point clouds by a classification attribute.
Definition at line 164 of file qgspointcloudclassifiedrenderer.h.
QgsPointCloudClassifiedRenderer::QgsPointCloudClassifiedRenderer | ( | const QString & | attributeName = QString() , |
const QgsPointCloudCategoryList & | categories = QgsPointCloudCategoryList() |
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Constructor for QgsPointCloudClassifiedRenderer.
Definition at line 48 of file qgspointcloudclassifiedrenderer.cpp.
void QgsPointCloudClassifiedRenderer::addCategory | ( | const QgsPointCloudCategory & | category | ) |
Adds a category to the renderer.
Definition at line 349 of file qgspointcloudclassifiedrenderer.cpp.
QString QgsPointCloudClassifiedRenderer::attribute | ( | ) | const |
Returns the attribute to use for the renderer.
Definition at line 329 of file qgspointcloudclassifiedrenderer.cpp.
QgsPointCloudCategoryList QgsPointCloudClassifiedRenderer::categories | ( | ) | const |
Returns the classification categories used for rendering.
Definition at line 339 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Called when the check state of the legend item with the specified key is changed.
Reimplemented from QgsPointCloudRenderer.
Definition at line 312 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Create a deep copy of this renderer.
Should be implemented by all subclasses and generate a proper subclass.
Implements QgsPointCloudRenderer.
Definition at line 59 of file qgspointcloudclassifiedrenderer.cpp.
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static |
Creates an RGB renderer from an XML element.
Definition at line 187 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Creates a set of legend nodes representing the renderer.
Reimplemented from QgsPointCloudRenderer.
Definition at line 275 of file qgspointcloudclassifiedrenderer.cpp.
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static |
Returns the default list of categories.
Definition at line 219 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Returns true
if the legend item with the specified key is checked.
Reimplemented from QgsPointCloudRenderer.
Definition at line 297 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Returns a list of all rule keys for legend nodes created by the renderer.
Reimplemented from QgsPointCloudRenderer.
Definition at line 287 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Returns prepared data container for bulk point color retrieval.
Reimplemented from QgsPointCloudRenderer.
Definition at line 354 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Renders a block of point cloud data using the specified render context.
Implements QgsPointCloudRenderer.
Definition at line 70 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Saves the renderer configuration to an XML element.
Implements QgsPointCloudRenderer.
Definition at line 242 of file qgspointcloudclassifiedrenderer.cpp.
void QgsPointCloudClassifiedRenderer::setAttribute | ( | const QString & | attribute | ) |
Sets the attribute to use for the renderer.
Definition at line 334 of file qgspointcloudclassifiedrenderer.cpp.
void QgsPointCloudClassifiedRenderer::setCategories | ( | const QgsPointCloudCategoryList & | categories | ) |
Sets the classification categories used for rendering.
Definition at line 344 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Returns the identifier of the renderer type.
Implements QgsPointCloudRenderer.
Definition at line 54 of file qgspointcloudclassifiedrenderer.cpp.
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overridevirtual |
Returns a list of attributes required by this renderer.
Attributes not listed in here may not be requested from the provider at rendering time.
Reimplemented from QgsPointCloudRenderer.
Definition at line 268 of file qgspointcloudclassifiedrenderer.cpp.
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override |
Definition at line 171 of file qgspointcloudclassifiedrenderer.cpp.