MisrSetRegion.h

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/*===========================================================================
=                                                                           =
=                              MisrSetRegion                                =
=                                                                           =
=============================================================================

                         Jet Propulsion Laboratory
                                   MISR
                               MISR Toolkit

            Copyright 2005, California Institute of Technology.
                           ALL RIGHTS RESERVED.
                 U.S. Government Sponsorship acknowledged.

============================================================================*/

#ifndef MISRSETREGION_H
#define MISRSETREGION_H

#include "MisrError.h"
#include "MisrProjParam.h"
#include "MisrMapQuery.h"


typedef struct {
  MTKt_GeoCoord ctr;        
} MTKt_GeoCenter;

#define MTKT_GEOCENTER_INIT { MTKT_GEOCOORD_INIT }

typedef struct {
  double xlat;          
  double ylon;          
} MTKt_Extent;

#define MTKT_EXTENT_INIT { 0.0, 0.0 }

typedef struct {
  MTKt_GeoCenter geo;       
  MTKt_Extent hextent;      
} MTKt_Region;

#define MTKT_REGION_INIT { MTKT_GEOCENTER_INIT, MTKT_EXTENT_INIT }


MTKt_status MtkSnapToGrid( int path,
               int resolution,
               MTKt_Region region,
               MTKt_MapInfo *mapinfo );

MTKt_status MtkSetRegionByUlcLrc( double ulc_lat_dd,
                  double ulc_lon_dd,
                  double lrc_lat_dd,
                  double lrc_lon_dd,
                  MTKt_Region *region );

MTKt_status MtkSetRegionByPathBlockRange( int path_number,
                      int start_block,
                      int end_block,
                      MTKt_Region *region );

MTKt_status MtkSetRegionByLatLonExtent( double ctr_lat_dd,
                    double ctr_lon_dd,
                    double lat_extent,
                    double lon_extent,
                    const char *extent_units,
                    MTKt_Region *region );

MTKt_status MtkSetRegionByPathSomUlcLrc(
                    int path,
                    double ulc_som_x,
                    double ulc_som_y,
                    double lrc_som_x,
                    double lrc_som_y,
                    MTKt_Region *region);

MTKt_status MtkSetRegionByGenericMapInfo(
  const MTKt_GenericMapInfo *Map_info, 
  const MTKt_GCTPProjInfo *Proj_info,  
  int Path,                
  MTKt_Region *Region 
                     );

#endif /* MISRSETREGION_H */