QGIS/python/core/raster/qgsrasterprojector.sip

/**  Raster projector */

class QgsRasterProjector : QgsRasterInterface
{
%TypeHeaderCode
#include <qgsrasterprojector.h>
#include <qgscoordinatereferencesystem.h>
%End

  public:
    /** \brief 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();

    /** \brief The destructor */
    ~QgsRasterProjector();

    QgsRasterInterface *clone() const /Factory/;

    int bandCount() const;

    int dataType( int bandNo ) const;

    /** \brief set source and destination CRS */
    void setCRS( const QgsCoordinateReferenceSystem & theSrcCRS, const QgsCoordinateReferenceSystem & theDestCRS );

    /** \brief Get source CRS */
    QgsCoordinateReferenceSystem srcCrs() const;

    /** \brief Get destination CRS */
    QgsCoordinateReferenceSystem destCrs() const;

    /** \brief set maximum source resolution */
    void setMaxSrcRes( double theMaxSrcXRes, double theMaxSrcYRes );

    /** get source extent */
    QgsRectangle srcExtent();

    /** get/set source width/height */
    int srcRows();
    int srcCols();
    void setSrcRows( int theRows );
    void setSrcCols( int theCols );

    /** \brief Get source row and column indexes for current source extent and resolution */
    void srcRowCol( int theDestRow, int theDestCol, int *theSrcRow, int *theSrcCol );

    int dstRows() const;
    int dstCols() const;

    QgsRasterBlock *block( int bandNo, const QgsRectangle & extent, int width, int height ) / Factory /;
};