GeoImage.h

Go to the documentation of this file.

 
#ifndef _GeoImage_h_
#define _GeoImage_h_
 
#ifdef WIN32
    #include <geotiff/xtiffio.h>
#else
    #include <xtiffio.h>
#endif
 
#include <vapor/MyBase.h>
 
namespace VAPoR {
 
//
class RENDER_API GeoImage : public Wasp::MyBase {
public:
    GeoImage();
 
    //
    GeoImage(int pixelsize, int nbands);
 
    virtual ~GeoImage();
 
    //
    virtual int Initialize(string path, std::vector<double> times) = 0;
 
    virtual unsigned char *GetImage(size_t ts, size_t &width, size_t &height) = 0;
 
    //
    virtual unsigned char *GetImage(size_t ts, const double pcsExtentsReq[4], string proj4StringReq, size_t maxWidthReq, size_t maxHeightReq, double pcsExtentsImg[4], double geoCornersImg[8],
                                    string &proj4StringImg, size_t &width, size_t &height) = 0;
 
protected:
    int _pixelsize;
    int _nbands;
 
    // Support routines for reading tiff images
    //
    int  TiffOpen(string path);
    void TiffClose();
 
    int TiffGetImageDimensions(int dirnum, size_t &width, size_t &height) const;
 
    int TiffReadImage(int dirnum, unsigned char *texture) const;
 
    TIFF *TiffGetHandle() const { return (_tif); }
 
    int CornerExtents(const double srccoords[4], double dstcoords[4], string proj4src) const;
 
private:
    TIFF * _tif;
    string _path;
};
};    // namespace VAPoR
 
#endif