QGIS API Documentation
2.8.2-Wien
|
#include <qgsrasterprojector.h>
Public Member Functions | |
QgsRasterProjector (QgsCoordinateReferenceSystem theSrcCRS, QgsCoordinateReferenceSystem theDestCRS, int theSrcDatumTransform, int theDestDatumTransform, QgsRectangle theDestExtent, int theDestRows, int theDestCols, double theMaxSrcXRes, double theMaxSrcYRes, QgsRectangle theExtent) | |
QgsRasterProjector implements approximate projection support for it calculates grid of points in source CRS for target CRS + extent which are used to calculate affine transformation matrices. | |
QgsRasterProjector (QgsCoordinateReferenceSystem theSrcCRS, QgsCoordinateReferenceSystem theDestCRS, QgsRectangle theDestExtent, int theDestRows, int theDestCols, double theMaxSrcXRes, double theMaxSrcYRes, QgsRectangle theExtent) | |
QgsRasterProjector (QgsCoordinateReferenceSystem theSrcCRS, QgsCoordinateReferenceSystem theDestCRS, double theMaxSrcXRes, double theMaxSrcYRes, QgsRectangle theExtent) | |
QgsRasterProjector () | |
QgsRasterProjector (const QgsRasterProjector &projector) | |
Copy constructor. | |
~QgsRasterProjector () | |
The destructor. | |
int | bandCount () const override |
Get number of bands. | |
QgsRasterBlock * | block (int bandNo, const QgsRectangle &extent, int width, int height) override |
Read block of data using given extent and size. | |
QgsRasterInterface * | clone () const override |
Clone itself, create deep copy. | |
QGis::DataType | dataType (int bandNo) const override |
Returns data type for the band specified by number. | |
QgsCoordinateReferenceSystem | destCrs () const |
Get destination CRS. | |
QgsRasterProjector & | operator= (const QgsRasterProjector &projector) |
void | setCRS (const QgsCoordinateReferenceSystem &theSrcCRS, const QgsCoordinateReferenceSystem &theDestCRS, int srcDatumTransform=-1, int destDatumTransform=-1) |
set source and destination CRS | |
void | setMaxSrcRes (double theMaxSrcXRes, double theMaxSrcYRes) |
set maximum source resolution | |
QgsCoordinateReferenceSystem | srcCrs () const |
Get source CRS. | |
Public Member Functions inherited from QgsRasterInterface | |
QgsRasterInterface (QgsRasterInterface *input=0) | |
virtual | ~QgsRasterInterface () |
virtual QgsRasterBandStats | bandStatistics (int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0) |
Get band statistics. | |
virtual int | capabilities () const |
Returns a bitmask containing the supported capabilities. | |
QString | capabilitiesString () const |
Returns the above in friendly format. | |
virtual void | cumulativeCut (int theBandNo, double theLowerCount, double theUpperCount, double &theLowerValue, double &theUpperValue, const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0) |
Find values for cumulative pixel count cut. | |
int | dataTypeSize (int bandNo) |
virtual QgsRectangle | extent () |
Get the extent of the interface. | |
virtual QString | generateBandName (int theBandNumber) const |
helper function to create zero padded band names | |
virtual bool | hasHistogram (int theBandNo, int theBinCount, double theMinimum=std::numeric_limits< double >::quiet_NaN(), double theMaximum=std::numeric_limits< double >::quiet_NaN(), const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0, bool theIncludeOutOfRange=false) |
Returns true if histogram is available (cached, already calculated), the parameters are the same as in histogram() | |
virtual bool | hasStatistics (int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0) |
Returns true if histogram is available (cached, already calculated). | |
virtual QgsRasterHistogram | histogram (int theBandNo, int theBinCount=0, double theMinimum=std::numeric_limits< double >::quiet_NaN(), double theMaximum=std::numeric_limits< double >::quiet_NaN(), const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0, bool theIncludeOutOfRange=false) |
Get histogram. | |
virtual QgsRasterInterface * | input () const |
Current input. | |
virtual bool | on () const |
Is on/off. | |
virtual void | readXML (const QDomElement &filterElem) |
Sets base class members from xml. | |
virtual bool | setInput (QgsRasterInterface *input) |
Set input. | |
virtual void | setOn (bool on) |
Set on/off. | |
virtual QGis::DataType | srcDataType (int bandNo) const |
Returns source data type for the band specified by number, source data type may be shorter than dataType. | |
virtual const QgsRasterInterface * | srcInput () const |
Get source / raw input, the first in pipe, usually provider. | |
virtual QgsRasterInterface * | srcInput () |
virtual void | writeXML (QDomDocument &doc, QDomElement &parentElem) const |
Write base class members to xml. | |
virtual int | xBlockSize () const |
Get block size. | |
virtual int | xSize () const |
Get raster size. | |
virtual int | yBlockSize () const |
virtual int | ySize () const |
Additional Inherited Members | |
Public Types inherited from QgsRasterInterface | |
enum | Capability { NoCapabilities = 0, Size = 1 << 1, Create = 1 << 2, Remove = 1 << 3, BuildPyramids = 1 << 4, Identify = 1 << 5, IdentifyValue = 1 << 6, IdentifyText = 1 << 7, IdentifyHtml = 1 << 8, IdentifyFeature = 1 << 9 } |
If you add to this, please also add to capabilitiesString() More... | |
Protected Member Functions inherited from QgsRasterInterface | |
void | initHistogram (QgsRasterHistogram &theHistogram, int theBandNo, int theBinCount=0, double theMinimum=std::numeric_limits< double >::quiet_NaN(), double theMaximum=std::numeric_limits< double >::quiet_NaN(), const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0, bool theIncludeOutOfRange=false) |
Fill in histogram defaults if not specified. | |
void | initStatistics (QgsRasterBandStats &theStatistics, int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theBinCount=0) |
Fill in statistics defaults if not specified. | |
Protected Attributes inherited from QgsRasterInterface | |
QList< QgsRasterHistogram > | mHistograms |
List of cached histograms, all bands mixed. | |
QgsRasterInterface * | mInput |
bool | mOn |
QList< QgsRasterBandStats > | mStatistics |
List of cached statistics, all bands mixed. |
Definition at line 38 of file qgsrasterprojector.h.
QgsRasterProjector::QgsRasterProjector | ( | QgsCoordinateReferenceSystem | theSrcCRS, |
QgsCoordinateReferenceSystem | theDestCRS, | ||
int | theSrcDatumTransform, | ||
int | theDestDatumTransform, | ||
QgsRectangle | theDestExtent, | ||
int | theDestRows, | ||
int | theDestCols, | ||
double | theMaxSrcXRes, | ||
double | theMaxSrcYRes, | ||
QgsRectangle | theExtent | ||
) |
QgsRasterProjector implements approximate projection support for it calculates grid of points in source CRS for target CRS + extent which are used to calculate affine transformation matrices.
Definition at line 24 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | QgsCoordinateReferenceSystem | theSrcCRS, |
QgsCoordinateReferenceSystem | theDestCRS, | ||
QgsRectangle | theDestExtent, | ||
int | theDestRows, | ||
int | theDestCols, | ||
double | theMaxSrcXRes, | ||
double | theMaxSrcYRes, | ||
QgsRectangle | theExtent | ||
) |
Definition at line 50 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | QgsCoordinateReferenceSystem | theSrcCRS, |
QgsCoordinateReferenceSystem | theDestCRS, | ||
double | theMaxSrcXRes, | ||
double | theMaxSrcYRes, | ||
QgsRectangle | theExtent | ||
) |
Definition at line 74 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | ) |
Definition at line 107 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | const QgsRasterProjector & | projector | ) |
Copy constructor.
Definition at line 134 of file qgsrasterprojector.cpp.
QgsRasterProjector::~QgsRasterProjector | ( | ) |
The destructor.
Definition at line 188 of file qgsrasterprojector.cpp.
|
overridevirtual |
Get number of bands.
Implements QgsRasterInterface.
Definition at line 194 of file qgsrasterprojector.cpp.
|
overridevirtual |
Read block of data using given extent and size.
Returns pointer to data. Caller is responsible to free the memory returned.
bandNo | band number |
extent | extent of block |
width | pixel width of block |
height | pixel height of block |
Implements QgsRasterInterface.
Definition at line 825 of file qgsrasterprojector.cpp.
|
overridevirtual |
Clone itself, create deep copy.
Implements QgsRasterInterface.
Definition at line 179 of file qgsrasterprojector.cpp.
|
overridevirtual |
Returns data type for the band specified by number.
Implements QgsRasterInterface.
Definition at line 201 of file qgsrasterprojector.cpp.
|
inline |
Get destination CRS.
Definition at line 96 of file qgsrasterprojector.h.
QgsRasterProjector & QgsRasterProjector::operator= | ( | const QgsRasterProjector & | projector | ) |
Definition at line 164 of file qgsrasterprojector.cpp.
void QgsRasterProjector::setCRS | ( | const QgsCoordinateReferenceSystem & | theSrcCRS, |
const QgsCoordinateReferenceSystem & | theDestCRS, | ||
int | srcDatumTransform = -1 , |
||
int | destDatumTransform = -1 |
||
) |
set source and destination CRS
Definition at line 208 of file qgsrasterprojector.cpp.
|
inline |
set maximum source resolution
Definition at line 99 of file qgsrasterprojector.h.
|
inline |
Get source CRS.
Definition at line 93 of file qgsrasterprojector.h.