QGIS API Documentation
3.16.0-Hannover (43b64b13f3)
|
Go to the documentation of this file.
18 #ifndef QGSHILLSHADERENDERER_H
19 #define QGSHILLSHADERENDERER_H
22 #include "qgis_core.h"
59 void writeXml( QDomDocument &doc, QDomElement &parentElem )
const override;
70 int band()
const {
return mBand; }
76 void setBand(
int bandNo );
82 double azimuth()
const {
return mLightAzimuth; }
88 double altitude()
const {
return mLightAngle; }
94 double zFactor()
const {
return mZFactor; }
107 void setAzimuth(
double azimuth ) { mLightAzimuth = azimuth; }
134 double mLightAzimuth;
135 bool mMultiDirectional;
138 double calcFirstDerX(
double x11,
double x21,
double x31,
double x12,
double x22,
double x32,
double x13,
double x23,
double x33,
double cellsize );
141 double calcFirstDerY(
double x11,
double x21,
double x31,
double x12,
double x22,
double x32,
double x13,
double x23,
double x33,
double cellsize );
144 #endif // QGSHILLSHADERENDERER_H
void setAzimuth(double azimuth)
Set the azimuth of the light source.
QgsRasterBlock * block(int bandNo, const QgsRectangle &extent, int width, int height, QgsRasterBlockFeedback *feedback=nullptr) override=0
Read block of data using given extent and size.
void setAltitude(double altitude)
Set the altitude of the light source.
A renderer for generating live hillshade models.
virtual void writeXml(QDomDocument &doc, QDomElement &parentElem) const
Write base class members to xml.
virtual void toSld(QDomDocument &doc, QDomElement &element, const QgsStringMap &props=QgsStringMap()) const
Used from subclasses to create SLD Rule elements following SLD v1.0 specs.
void setMultiDirectional(bool isMultiDirectional)
Sets whether to render using a multi-directional hillshade algorithm.
virtual QList< int > usesBands() const
Returns a list of band numbers used by the renderer.
A rectangle specified with double values.
double azimuth() const
Returns the direction of the light over the raster between 0-360.
bool multiDirectional() const
Returns true if the renderer is using multi-directional hillshading.
Raster renderer pipe that applies colors to a raster.
double altitude() const
Returns the angle of the light source over the raster.
int band() const
Returns the band used by the renderer.
QgsRasterRenderer * clone() const override=0
Clone itself, create deep copy.
QMap< QString, QString > QgsStringMap
Base class for processing filters like renderers, reprojector, resampler etc.
Feedback object tailored for raster block reading.
void setZFactor(double zfactor)
Set the Z scaling factor of the result image.
double zFactor() const
Returns the Z scaling factor.