QGIS API Documentation
2.14.0-Essen
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#include <qgsrasterprojector.h>
Public Types | |
enum | Precision { Approximate = 0, Exact = 1 } |
Precison defines if each pixel is reprojected or approximate reprojection based on an approximation matrix of reprojected points is used. More... | |
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... | |
Public Member Functions | |
QgsRasterProjector (const QgsCoordinateReferenceSystem &theSrcCRS, const QgsCoordinateReferenceSystem &theDestCRS, int theSrcDatumTransform, int theDestDatumTransform, const QgsRectangle &theDestExtent, int theDestRows, int theDestCols, double theMaxSrcXRes, double theMaxSrcYRes, const 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. More... | |
QgsRasterProjector (const QgsCoordinateReferenceSystem &theSrcCRS, const QgsCoordinateReferenceSystem &theDestCRS, const QgsRectangle &theDestExtent, int theDestRows, int theDestCols, double theMaxSrcXRes, double theMaxSrcYRes, const QgsRectangle &theExtent) | |
QgsRasterProjector (const QgsCoordinateReferenceSystem &theSrcCRS, const QgsCoordinateReferenceSystem &theDestCRS, double theMaxSrcXRes, double theMaxSrcYRes, const QgsRectangle &theExtent) | |
QgsRasterProjector () | |
QgsRasterProjector (const QgsRasterProjector &projector) | |
Copy constructor. More... | |
~QgsRasterProjector () | |
The destructor. More... | |
int | bandCount () const override |
Get number of bands. More... | |
QgsRasterBlock * | block (int bandNo, const QgsRectangle &extent, int width, int height) override |
Read block of data using given extent and size. More... | |
QgsRasterProjector * | clone () const override |
Clone itself, create deep copy. More... | |
QGis::DataType | dataType (int bandNo) const override |
Returns data type for the band specified by number. More... | |
QgsCoordinateReferenceSystem | destCrs () const |
Get destination CRS. More... | |
bool | destExtentSize (const QgsRectangle &theSrcExtent, int theSrcXSize, int theSrcYSize, QgsRectangle &theDestExtent, int &theDestXSize, int &theDestYSize) |
Calculate destination extent and size from source extent and size. More... | |
QgsRasterProjector & | operator= (const QgsRasterProjector &projector) |
Precision | precision () const |
void | setCRS (const QgsCoordinateReferenceSystem &theSrcCRS, const QgsCoordinateReferenceSystem &theDestCRS, int srcDatumTransform=-1, int destDatumTransform=-1) |
set source and destination CRS More... | |
void | setMaxSrcRes (double theMaxSrcXRes, double theMaxSrcYRes) |
set maximum source resolution More... | |
void | setPrecision (Precision precision) |
QgsCoordinateReferenceSystem | srcCrs () const |
Get source CRS. More... | |
Public Member Functions inherited from QgsRasterInterface | |
QgsRasterInterface (QgsRasterInterface *input=nullptr) | |
virtual | ~QgsRasterInterface () |
virtual QgsRasterBandStats | bandStatistics (int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0) |
Get band statistics. More... | |
virtual int | capabilities () const |
Returns a bitmask containing the supported capabilities. More... | |
QString | capabilitiesString () const |
Returns the above in friendly format. More... | |
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. More... | |
int | dataTypeSize (int bandNo) |
virtual QgsRectangle | extent () |
Get the extent of the interface. More... | |
virtual QString | generateBandName (int theBandNumber) const |
helper function to create zero padded band names More... | |
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() More... | |
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). More... | |
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. More... | |
virtual QgsRasterInterface * | input () const |
Current input. More... | |
virtual bool | on () const |
Is on/off. More... | |
virtual void | readXML (const QDomElement &filterElem) |
Sets base class members from xml. More... | |
virtual bool | setInput (QgsRasterInterface *input) |
Set input. More... | |
virtual void | setOn (bool on) |
Set on/off. More... | |
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. More... | |
virtual const QgsRasterInterface * | srcInput () const |
Get source / raw input, the first in pipe, usually provider. More... | |
virtual QgsRasterInterface * | srcInput () |
virtual void | writeXML (QDomDocument &doc, QDomElement &parentElem) const |
Write base class members to xml. More... | |
virtual int | xBlockSize () const |
Get block size. More... | |
virtual int | xSize () const |
Get raster size. More... | |
virtual int | yBlockSize () const |
virtual int | ySize () const |
Static Public Member Functions | |
static bool | extentSize (const QgsCoordinateTransform *ct, const QgsRectangle &theSrcExtent, int theSrcXSize, int theSrcYSize, QgsRectangle &theDestExtent, int &theDestXSize, int &theDestYSize) |
Calculate destination extent and size from source extent and size. More... | |
static QString | precisionLabel (Precision precision) |
Additional Inherited Members | |
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. More... | |
void | initStatistics (QgsRasterBandStats &theStatistics, int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theBinCount=0) |
Fill in statistics defaults if not specified. More... | |
Protected Attributes inherited from QgsRasterInterface | |
QList< QgsRasterHistogram > | mHistograms |
List of cached histograms, all bands mixed. More... | |
QgsRasterInterface * | mInput |
bool | mOn |
QList< QgsRasterBandStats > | mStatistics |
List of cached statistics, all bands mixed. More... | |
Definition at line 38 of file qgsrasterprojector.h.
Precison defines if each pixel is reprojected or approximate reprojection based on an approximation matrix of reprojected points is used.
Enumerator | |
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Approximate |
Approximate (default), fast but possibly inaccurate. |
Exact |
Exact, precise but slow. |
Definition at line 44 of file qgsrasterprojector.h.
QgsRasterProjector::QgsRasterProjector | ( | const QgsCoordinateReferenceSystem & | theSrcCRS, |
const QgsCoordinateReferenceSystem & | theDestCRS, | ||
int | theSrcDatumTransform, | ||
int | theDestDatumTransform, | ||
const QgsRectangle & | theDestExtent, | ||
int | theDestRows, | ||
int | theDestCols, | ||
double | theMaxSrcXRes, | ||
double | theMaxSrcYRes, | ||
const 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 25 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | const QgsCoordinateReferenceSystem & | theSrcCRS, |
const QgsCoordinateReferenceSystem & | theDestCRS, | ||
const QgsRectangle & | theDestExtent, | ||
int | theDestRows, | ||
int | theDestCols, | ||
double | theMaxSrcXRes, | ||
double | theMaxSrcYRes, | ||
const QgsRectangle & | theExtent | ||
) |
Definition at line 53 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | const QgsCoordinateReferenceSystem & | theSrcCRS, |
const QgsCoordinateReferenceSystem & | theDestCRS, | ||
double | theMaxSrcXRes, | ||
double | theMaxSrcYRes, | ||
const QgsRectangle & | theExtent | ||
) |
Definition at line 79 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | ) |
Definition at line 113 of file qgsrasterprojector.cpp.
QgsRasterProjector::QgsRasterProjector | ( | const QgsRasterProjector & | projector | ) |
Copy constructor.
Definition at line 141 of file qgsrasterprojector.cpp.
QgsRasterProjector::~QgsRasterProjector | ( | ) |
The destructor.
Definition at line 197 of file qgsrasterprojector.cpp.
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overridevirtual |
Get number of bands.
Implements QgsRasterInterface.
Definition at line 203 of file qgsrasterprojector.cpp.
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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 878 of file qgsrasterprojector.cpp.
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overridevirtual |
Clone itself, create deep copy.
Implements QgsRasterInterface.
Definition at line 187 of file qgsrasterprojector.cpp.
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overridevirtual |
Returns data type for the band specified by number.
Implements QgsRasterInterface.
Definition at line 210 of file qgsrasterprojector.cpp.
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inline |
Get destination CRS.
Definition at line 102 of file qgsrasterprojector.h.
bool QgsRasterProjector::destExtentSize | ( | const QgsRectangle & | theSrcExtent, |
int | theSrcXSize, | ||
int | theSrcYSize, | ||
QgsRectangle & | theDestExtent, | ||
int & | theDestXSize, | ||
int & | theDestYSize | ||
) |
Calculate destination extent and size from source extent and size.
Definition at line 999 of file qgsrasterprojector.cpp.
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static |
Calculate destination extent and size from source extent and size.
Definition at line 1011 of file qgsrasterprojector.cpp.
QgsRasterProjector & QgsRasterProjector::operator= | ( | const QgsRasterProjector & | projector | ) |
Definition at line 171 of file qgsrasterprojector.cpp.
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inline |
Definition at line 111 of file qgsrasterprojector.h.
Definition at line 866 of file qgsrasterprojector.cpp.
void QgsRasterProjector::setCRS | ( | const QgsCoordinateReferenceSystem & | theSrcCRS, |
const QgsCoordinateReferenceSystem & | theDestCRS, | ||
int | srcDatumTransform = -1 , |
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int | destDatumTransform = -1 |
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set source and destination CRS
Definition at line 217 of file qgsrasterprojector.cpp.
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inline |
set maximum source resolution
Definition at line 105 of file qgsrasterprojector.h.
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inline |
Definition at line 112 of file qgsrasterprojector.h.
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inline |
Get source CRS.
Definition at line 99 of file qgsrasterprojector.h.