QGIS API Documentation
3.2.0-Bonn (bc43194)
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3 Implementation of terrain generator that uses a raster layer with DEM to build terrain. More...
#include <qgsdemterraingenerator.h>
Public Member Functions | |
QgsDemTerrainGenerator ()=default | |
Constructor for QgsDemTerrainGenerator. More... | |
~QgsDemTerrainGenerator () override | |
QgsTerrainGenerator * | clone () const override |
Makes a copy of the current instance. More... | |
QgsChunkLoader * | createChunkLoader (QgsChunkNode *node) const override |
QgsRectangle | extent () const override |
extent of the terrain in terrain's CRS More... | |
float | heightAt (double x, double y, const Qgs3DMapSettings &map) const override |
Returns height at (x,y) in terrain's CRS. More... | |
QgsDemHeightMapGenerator * | heightMapGenerator () |
Returns height map generator object - takes care of extraction of elevations from the layer) More... | |
QgsRasterLayer * | layer () const |
Returns raster layer with elevation model to be used for terrain generation. More... | |
void | readXml (const QDomElement &elem) override |
Read terrain generator's configuration from XML. More... | |
int | resolution () const |
Returns resolution of the generator (how many elevation samples on one side of a terrain tile) More... | |
void | resolveReferences (const QgsProject &project) override |
After read of XML, resolve references to any layers that have been read as layer IDs. More... | |
void | setCrs (const QgsCoordinateReferenceSystem &crs, const QgsCoordinateTransformContext &context) |
Sets CRS of the terrain. More... | |
void | setLayer (QgsRasterLayer *layer) |
Sets raster layer with elevation model to be used for terrain generation. More... | |
void | setResolution (int resolution) |
Sets resolution of the generator (how many elevation samples on one side of a terrain tile) More... | |
void | setSkirtHeight (float skirtHeight) |
Sets skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles. More... | |
float | skirtHeight () const |
Returns skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles. More... | |
Type | type () const override |
What texture generator implementation is this. More... | |
void | writeXml (QDomElement &elem) const override |
Write terrain generator's configuration to XML. More... | |
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QgsCoordinateReferenceSystem | crs () const |
Returns CRS of the terrain. More... | |
virtual QgsAABB | rootChunkBbox (const Qgs3DMapSettings &map) const |
Returns bounding box of the root chunk. More... | |
virtual float | rootChunkError (const Qgs3DMapSettings &map) const |
Returns error of the root chunk in world coordinates. More... | |
virtual void | rootChunkHeightRange (float &hMin, float &hMax) const |
Returns height range of the root chunk in world coordinates. More... | |
void | setTerrain (QgsTerrainEntity *t) |
Sets terrain entity for the generator (does not transfer ownership) More... | |
const QgsTilingScheme & | tilingScheme () const |
Returns tiling scheme of the terrain. More... | |
Additional Inherited Members | |
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enum | Type { Flat, Dem, QuantizedMesh } |
Enumeration of the available terrain generators. More... | |
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static QString | typeToString (Type type) |
Converts terrain generator type enumeration into a string. More... | |
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QgsTerrainEntity * | mTerrain = nullptr |
QgsTilingScheme | mTerrainTilingScheme |
Tiling scheme of the terrain. More... | |
3 Implementation of terrain generator that uses a raster layer with DEM to build terrain.
Definition at line 36 of file qgsdemterraingenerator.h.
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default |
Constructor for QgsDemTerrainGenerator.
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override |
Definition at line 22 of file qgsdemterraingenerator.cpp.
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overridevirtual |
Makes a copy of the current instance.
Implements QgsTerrainGenerator.
Definition at line 45 of file qgsdemterraingenerator.cpp.
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override |
Definition at line 96 of file qgsdemterraingenerator.cpp.
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overridevirtual |
extent of the terrain in terrain's CRS
Implements QgsTerrainGenerator.
Definition at line 61 of file qgsdemterraingenerator.cpp.
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overridevirtual |
Returns height at (x,y) in terrain's CRS.
Reimplemented from QgsTerrainGenerator.
Definition at line 66 of file qgsdemterraingenerator.cpp.
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inline |
Returns height map generator object - takes care of extraction of elevations from the layer)
Definition at line 62 of file qgsdemterraingenerator.h.
QgsRasterLayer * QgsDemTerrainGenerator::layer | ( | ) | const |
Returns raster layer with elevation model to be used for terrain generation.
Definition at line 33 of file qgsdemterraingenerator.cpp.
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overridevirtual |
Read terrain generator's configuration from XML.
Implements QgsTerrainGenerator.
Definition at line 81 of file qgsdemterraingenerator.cpp.
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inline |
Returns resolution of the generator (how many elevation samples on one side of a terrain tile)
Definition at line 54 of file qgsdemterraingenerator.h.
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overridevirtual |
After read of XML, resolve references to any layers that have been read as layer IDs.
Reimplemented from QgsTerrainGenerator.
Definition at line 90 of file qgsdemterraingenerator.cpp.
void QgsDemTerrainGenerator::setCrs | ( | const QgsCoordinateReferenceSystem & | crs, |
const QgsCoordinateTransformContext & | context | ||
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Sets CRS of the terrain.
Definition at line 38 of file qgsdemterraingenerator.cpp.
void QgsDemTerrainGenerator::setLayer | ( | QgsRasterLayer * | layer | ) |
Sets raster layer with elevation model to be used for terrain generation.
Definition at line 27 of file qgsdemterraingenerator.cpp.
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inline |
Sets resolution of the generator (how many elevation samples on one side of a terrain tile)
Definition at line 52 of file qgsdemterraingenerator.h.
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inline |
Sets skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles.
Definition at line 57 of file qgsdemterraingenerator.h.
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inline |
Returns skirt height (in world units). Skirts at the edges of terrain tiles help hide cracks between adjacent tiles.
Definition at line 59 of file qgsdemterraingenerator.h.
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overridevirtual |
What texture generator implementation is this.
Implements QgsTerrainGenerator.
Definition at line 56 of file qgsdemterraingenerator.cpp.
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overridevirtual |
Write terrain generator's configuration to XML.
Implements QgsTerrainGenerator.
Definition at line 72 of file qgsdemterraingenerator.cpp.