GeoImageGeoTiff.h

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#ifndef _GeoImageGeoTiff_h_
#define _GeoImageGeoTiff_h_
 
#ifdef WIN32
    #include <geotiff/xtiffio.h>
    #include <geotiff/geotiff.h>
#else
    #include <xtiffio.h>
    #include <geotiff.h>
#endif
#include <vapor/MyBase.h>
#include <vapor/UDUnitsClass.h>
#include "GeoImage.h"
 
namespace VAPoR {
 
//
class RENDER_API GeoImageGeoTiff : public GeoImage {
public:
    GeoImageGeoTiff();
    virtual ~GeoImageGeoTiff();
 
    int Initialize(string path, vector<double> times);
 
    unsigned char *GetImage(size_t ts, size_t &width, size_t &height);
 
    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);
 
private:
    string              _proj4String;
    std::vector<double> _tiffTimes;
    std::vector<double> _times;
    unsigned char *     _texture;        // storage for texture image
    size_t              _textureSize;    // Texture size. No smart buffers :-(
 
    string _getProjectionFromGTIF(GTIF *gtifHandle) const;
 
    void _initTimeVector(TIFF *tif, const vector<double> &times);
 
    bool _getTiffTime(TIFF *tif, UDUnits *udunits, double &tifftime) const;
 
    int _getBestDirNum(size_t ts) const;
 
    int _getGTIFInfo(TIFF *tif, size_t width, size_t height, double pcsExtents[4], double geoCorners[8], string &proj4String) const;
 
    bool _extractSubtexture(unsigned char *texture, size_t width, size_t height, const double pcsExtentsReq[4], string proj4StringReq, const double pcsExtentsImg[4], const double geoCornersImg[8],
                            string proj4StringImg, string &subProj4StringImg, size_t &subWidth, size_t &subHeight, double subPCSExtentsImg[4], double subGeoCornersImg[8]) const;
};
 
};    // namespace VAPoR
#endif