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pdsdataset.cpp
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/******************************************************************************
*
* Project: PDS Driver; Planetary Data System Format
* Purpose: Implementation of PDSDataset
* Author: Trent Hare ([email protected]),
* Robert Soricone ([email protected])
*
* NOTE: Original code authored by Trent and Robert and placed in the public
* domain as per US government policy. I have (within my rights) appropriated
* it and placed it under the following license. This is not intended to
* diminish Trent and Roberts contribution.
******************************************************************************
* Copyright (c) 2007, Frank Warmerdam <[email protected]>
* Copyright (c) 2008-2013, Even Rouault <even dot rouault at spatialys.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
// Set up PDS NULL values
constexpr int NULL1 = 0;
constexpr int NULL2 = -32768;
//#define NULL3 -0.3402822655089E+39
//Same as ESRI_GRID_FLOAT_NO_DATA
//#define NULL3 -340282346638528859811704183484516925440.0
constexpr double NULL3 = -3.4028226550889044521e+38;
#include "cpl_string.h"
#include "gdal_frmts.h"
#include "gdal_proxy.h"
#include "nasakeywordhandler.h"
#include "ogr_spatialref.h"
#include "rawdataset.h"
#include "cpl_safemaths.hpp"
#include "vicardataset.h"
CPL_CVSID("$Id$")
enum PDSLayout
{
PDS_BSQ,
PDS_BIP,
PDS_BIL
};
/************************************************************************/
/* ==================================================================== */
/* PDSDataset */
/* ==================================================================== */
/************************************************************************/
class PDSDataset final: public RawDataset
{
VSILFILE *fpImage; // image data file.
GDALDataset *poCompressedDS;
NASAKeywordHandler oKeywords;
int bGotTransform;
double adfGeoTransform[6];
CPLString osProjection;
CPLString osTempResult;
CPLString osExternalCube;
CPLString m_osImageFilename;
CPLStringList m_aosPDSMD;
void ParseSRS();
int ParseCompressedImage();
int ParseImage( CPLString osPrefix, CPLString osFilenamePrefix );
static void CleanString( CPLString &osInput );
const char *GetKeyword( std::string osPath,
const char *pszDefault = "");
const char *GetKeywordSub( std::string osPath,
int iSubscript,
const char *pszDefault = "");
const char *GetKeywordUnit( const char *pszPath,
int iSubscript,
const char *pszDefault = "");
protected:
virtual int CloseDependentDatasets() override;
public:
PDSDataset();
virtual ~PDSDataset();
virtual CPLErr GetGeoTransform( double * padfTransform ) override;
virtual const char *_GetProjectionRef(void) override;
const OGRSpatialReference* GetSpatialRef() const override {
return GetSpatialRefFromOldGetProjectionRef();
}
virtual char **GetFileList(void) override;
virtual CPLErr IBuildOverviews( const char *, int, int *,
int, int *, GDALProgressFunc, void * ) override;
virtual CPLErr IRasterIO( GDALRWFlag, int, int, int, int,
void *, int, int, GDALDataType,
int, int *,
GSpacing nPixelSpace, GSpacing nLineSpace,
GSpacing nBandSpace,
GDALRasterIOExtraArg* psExtraArg) override;
bool GetRawBinaryLayout(GDALDataset::RawBinaryLayout&) override;
char **GetMetadataDomainList() override;
char **GetMetadata( const char* pszDomain = "" ) override;
static int Identify( GDALOpenInfo * );
static GDALDataset *Open( GDALOpenInfo * );
static GDALDataset *Create( const char * pszFilename,
int nXSize, int nYSize, int nBands,
GDALDataType eType, char ** papszParamList );
};
/************************************************************************/
/* PDSDataset() */
/************************************************************************/
PDSDataset::PDSDataset() :
fpImage(nullptr),
poCompressedDS(nullptr),
bGotTransform(FALSE)
{
adfGeoTransform[0] = 0.0;
adfGeoTransform[1] = 1.0;
adfGeoTransform[2] = 0.0;
adfGeoTransform[3] = 0.0;
adfGeoTransform[4] = 0.0;
adfGeoTransform[5] = 1.0;
}
/************************************************************************/
/* ~PDSDataset() */
/************************************************************************/
PDSDataset::~PDSDataset()
{
PDSDataset::FlushCache(true);
if( fpImage != nullptr )
VSIFCloseL( fpImage );
PDSDataset::CloseDependentDatasets();
}
/************************************************************************/
/* CloseDependentDatasets() */
/************************************************************************/
int PDSDataset::CloseDependentDatasets()
{
int bHasDroppedRef = GDALPamDataset::CloseDependentDatasets();
if( poCompressedDS )
{
bHasDroppedRef = FALSE;
delete poCompressedDS;
poCompressedDS = nullptr;
}
for( int iBand = 0; iBand < nBands; iBand++ )
{
delete papoBands[iBand];
}
nBands = 0;
return bHasDroppedRef;
}
/************************************************************************/
/* GetFileList() */
/************************************************************************/
char **PDSDataset::GetFileList()
{
char **papszFileList = RawDataset::GetFileList();
if( poCompressedDS != nullptr )
{
char **papszCFileList = poCompressedDS->GetFileList();
papszFileList = CSLInsertStrings( papszFileList, -1,
papszCFileList );
CSLDestroy( papszCFileList );
}
if( !osExternalCube.empty() )
{
papszFileList = CSLAddString( papszFileList, osExternalCube );
}
return papszFileList;
}
/************************************************************************/
/* IBuildOverviews() */
/************************************************************************/
CPLErr PDSDataset::IBuildOverviews( const char *pszResampling,
int nOverviews, int *panOverviewList,
int nListBands, int *panBandList,
GDALProgressFunc pfnProgress,
void * pProgressData )
{
if( poCompressedDS != nullptr )
return poCompressedDS->BuildOverviews( pszResampling,
nOverviews, panOverviewList,
nListBands, panBandList,
pfnProgress, pProgressData );
return RawDataset::IBuildOverviews( pszResampling,
nOverviews, panOverviewList,
nListBands, panBandList,
pfnProgress, pProgressData );
}
/************************************************************************/
/* IRasterIO() */
/************************************************************************/
CPLErr PDSDataset::IRasterIO( GDALRWFlag eRWFlag,
int nXOff, int nYOff, int nXSize, int nYSize,
void * pData, int nBufXSize, int nBufYSize,
GDALDataType eBufType,
int nBandCount, int *panBandMap,
GSpacing nPixelSpace, GSpacing nLineSpace,
GSpacing nBandSpace,
GDALRasterIOExtraArg* psExtraArg)
{
if( poCompressedDS != nullptr )
return poCompressedDS->RasterIO( eRWFlag,
nXOff, nYOff, nXSize, nYSize,
pData, nBufXSize, nBufYSize,
eBufType, nBandCount, panBandMap,
nPixelSpace, nLineSpace, nBandSpace,
psExtraArg);
return RawDataset::IRasterIO( eRWFlag,
nXOff, nYOff, nXSize, nYSize,
pData, nBufXSize, nBufYSize,
eBufType, nBandCount, panBandMap,
nPixelSpace, nLineSpace, nBandSpace, psExtraArg );
}
/************************************************************************/
/* GetProjectionRef() */
/************************************************************************/
const char *PDSDataset::_GetProjectionRef()
{
if( !osProjection.empty() )
return osProjection;
return GDALPamDataset::_GetProjectionRef();
}
/************************************************************************/
/* GetGeoTransform() */
/************************************************************************/
CPLErr PDSDataset::GetGeoTransform( double * padfTransform )
{
if( bGotTransform )
{
memcpy( padfTransform, adfGeoTransform, sizeof(double) * 6 );
return CE_None;
}
return GDALPamDataset::GetGeoTransform( padfTransform );
}
/************************************************************************/
/* ParseSRS() */
/************************************************************************/
void PDSDataset::ParseSRS()
{
const char *pszFilename = GetDescription();
CPLString osPrefix;
if( strlen(GetKeyword( "IMAGE_MAP_PROJECTION.MAP_PROJECTION_TYPE")) == 0 &&
strlen(GetKeyword( "UNCOMPRESSED_FILE.IMAGE_MAP_PROJECTION.MAP_PROJECTION_TYPE")) != 0 )
osPrefix = "UNCOMPRESSED_FILE.";
/* ==================================================================== */
/* Get the geotransform. */
/* ==================================================================== */
/*********** Grab Cellsize ************/
//example:
//MAP_SCALE = 14.818 <KM/PIXEL>
//added search for unit (only checks for CM, KM - defaults to Meters)
//Georef parameters
double dfXDim = 1.0;
double dfYDim = 1.0;
const char *value = GetKeyword(osPrefix + "IMAGE_MAP_PROJECTION.MAP_SCALE");
if (strlen(value) > 0 ) {
dfXDim = CPLAtof(value);
dfYDim = CPLAtof(value) * -1;
CPLString osKey(osPrefix + "IMAGE_MAP_PROJECTION.MAP_SCALE");
CPLString unit = GetKeywordUnit(osKey,2); //KM
//value = GetKeywordUnit("IMAGE_MAP_PROJECTION.MAP_SCALE",3); //PIXEL
if((EQUAL(unit,"M")) || (EQUAL(unit,"METER")) || (EQUAL(unit,"METERS"))) {
// do nothing
}
else if (EQUAL(unit,"CM")) {
// convert from cm to m
dfXDim = dfXDim / 100.0;
dfYDim = dfYDim / 100.0;
} else {
//defaults to convert km to m
dfXDim = dfXDim * 1000.0;
dfYDim = dfYDim * 1000.0;
}
}
/* -------------------------------------------------------------------- */
/* Calculate upper left corner of pixel in meters from the */
/* upper left center pixel sample/line offsets. It doesn't */
/* mean the defaults will work for every PDS image, as these */
/* values are used inconsistently. Thus we have included */
/* conversion options to allow the user to override the */
/* documented PDS3 default. Jan. 2011, for known mapping issues */
/* see GDAL PDS page or mapping within ISIS3 source (USGS) */
/* $ISIS3DATA/base/translations/pdsProjectionLineSampToXY.def */
/* -------------------------------------------------------------------- */
// defaults should be correct for what is documented in the PDS3 standard
// https://trac.osgeo.org/gdal/ticket/5941 has the history of the default
/* value of PDS_SampleProjOffset_Shift and PDS_LineProjOffset_Shift */
// coverity[tainted_data]
double dfSampleOffset_Shift =
CPLAtof(CPLGetConfigOption( "PDS_SampleProjOffset_Shift", "0.5" ));
// coverity[tainted_data]
const double dfLineOffset_Shift =
CPLAtof(CPLGetConfigOption( "PDS_LineProjOffset_Shift", "0.5" ));
// coverity[tainted_data]
const double dfSampleOffset_Mult =
CPLAtof(CPLGetConfigOption( "PDS_SampleProjOffset_Mult", "-1.0") );
// coverity[tainted_data]
const double dfLineOffset_Mult =
CPLAtof( CPLGetConfigOption( "PDS_LineProjOffset_Mult", "1.0") );
/*********** Grab LINE_PROJECTION_OFFSET ************/
double dfULYMap = 0.5;
value = GetKeyword(osPrefix + "IMAGE_MAP_PROJECTION.LINE_PROJECTION_OFFSET");
if (strlen(value) > 0) {
const double yulcenter = CPLAtof(value);
dfULYMap = ((yulcenter + dfLineOffset_Shift) * -dfYDim * dfLineOffset_Mult);
//notice dfYDim is negative here which is why it is again negated here
}
/*********** Grab SAMPLE_PROJECTION_OFFSET ************/
double dfULXMap = 0.5;
value = GetKeyword(osPrefix + "IMAGE_MAP_PROJECTION.SAMPLE_PROJECTION_OFFSET");
if( strlen(value) > 0 ) {
const double xulcenter = CPLAtof(value);
dfULXMap = ((xulcenter + dfSampleOffset_Shift) * dfXDim * dfSampleOffset_Mult);
}
/* ==================================================================== */
/* Get the coordinate system. */
/* ==================================================================== */
/*********** Grab TARGET_NAME ************/
/**** This is the planets name i.e. MARS ***/
CPLString target_name = GetKeyword("TARGET_NAME");
CleanString( target_name );
/********** Grab MAP_PROJECTION_TYPE *****/
CPLString map_proj_name =
GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.MAP_PROJECTION_TYPE");
CleanString( map_proj_name );
/****** Grab semi_major & convert to KM ******/
const double semi_major =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.A_AXIS_RADIUS")) * 1000.0;
/****** Grab semi-minor & convert to KM ******/
const double semi_minor =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.C_AXIS_RADIUS")) * 1000.0;
/*********** Grab CENTER_LAT ************/
const double center_lat =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.CENTER_LATITUDE"));
/*********** Grab CENTER_LON ************/
const double center_lon =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.CENTER_LONGITUDE"));
/********** Grab 1st std parallel *******/
const double first_std_parallel =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.FIRST_STANDARD_PARALLEL"));
/********** Grab 2nd std parallel *******/
const double second_std_parallel =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.SECOND_STANDARD_PARALLEL"));
/*** grab PROJECTION_LATITUDE_TYPE = "PLANETOCENTRIC" ****/
// Need to further study how ocentric/ographic will effect the gdal library.
// So far we will use this fact to define a sphere or ellipse for some projections
// Frank - may need to talk this over
char bIsGeographic = TRUE;
value = GetKeyword(osPrefix + "IMAGE_MAP_PROJECTION.COORDINATE_SYSTEM_NAME");
if (EQUAL( value, "PLANETOCENTRIC" ))
bIsGeographic = FALSE;
const double dfLongitudeMulFactor =
EQUAL(GetKeyword( "IMAGE_MAP_PROJECTION.POSITIVE_LONGITUDE_DIRECTION", "EAST"), "EAST") ? 1 : -1;
/** Set oSRS projection and parameters --- all PDS supported types added if apparently supported in oSRS
"AITOFF", ** Not supported in GDAL??
"ALBERS",
"BONNE",
"BRIESEMEISTER", ** Not supported in GDAL??
"CYLINDRICAL EQUAL AREA",
"EQUIDISTANT",
"EQUIRECTANGULAR",
"GNOMONIC",
"HAMMER", ** Not supported in GDAL??
"HENDU", ** Not supported in GDAL??
"LAMBERT AZIMUTHAL EQUAL AREA",
"LAMBERT CONFORMAL",
"MERCATOR",
"MOLLWEIDE",
"OBLIQUE CYLINDRICAL",
"ORTHOGRAPHIC",
"SIMPLE CYLINDRICAL",
"SINUSOIDAL",
"STEREOGRAPHIC",
"TRANSVERSE MERCATOR",
"VAN DER GRINTEN", ** Not supported in GDAL??
"WERNER" ** Not supported in GDAL??
**/
CPLDebug( "PDS","using projection %s\n\n", map_proj_name.c_str());
bool bProjectionSet = true;
OGRSpatialReference oSRS;
if ((EQUAL( map_proj_name, "EQUIRECTANGULAR" )) ||
(EQUAL( map_proj_name, "SIMPLE_CYLINDRICAL" )) ||
(EQUAL( map_proj_name, "EQUIDISTANT" )) ) {
oSRS.SetEquirectangular2 ( 0.0, center_lon, center_lat, 0, 0 );
} else if (EQUAL( map_proj_name, "ORTHOGRAPHIC" )) {
oSRS.SetOrthographic ( center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "SINUSOIDAL" )) {
oSRS.SetSinusoidal ( center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "MERCATOR" )) {
if( center_lat == 0.0 && first_std_parallel != 0.0 )
{
oSRS.SetMercator2SP( first_std_parallel, center_lat, center_lon, 0, 0 );
}
else
{
oSRS.SetMercator ( center_lat, center_lon, 1, 0, 0 );
}
} else if (EQUAL( map_proj_name, "STEREOGRAPHIC" )) {
if ( (fabs(center_lat)-90) < 0.0000001 ) {
oSRS.SetPS ( center_lat, center_lon, 1, 0, 0 );
} else
oSRS.SetStereographic ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "POLAR_STEREOGRAPHIC")) {
oSRS.SetPS ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "TRANSVERSE_MERCATOR" )) {
oSRS.SetTM ( center_lat, center_lon, 1, 0, 0 );
} else if (EQUAL( map_proj_name, "LAMBERT_CONFORMAL_CONIC" )) {
oSRS.SetLCC ( first_std_parallel, second_std_parallel,
center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "LAMBERT_AZIMUTHAL_EQUAL_AREA" )) {
oSRS.SetLAEA( center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "CYLINDRICAL_EQUAL_AREA" )) {
oSRS.SetCEA ( first_std_parallel, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "MOLLWEIDE" )) {
oSRS.SetMollweide ( center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "ALBERS" )) {
oSRS.SetACEA ( first_std_parallel, second_std_parallel,
center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "BONNE" )) {
oSRS.SetBonne ( first_std_parallel, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "GNOMONIC" )) {
oSRS.SetGnomonic ( center_lat, center_lon, 0, 0 );
} else if (EQUAL( map_proj_name, "OBLIQUE_CYLINDRICAL" )) {
const double poleLatitude =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.OBLIQUE_PROJ_POLE_LATITUDE"));
const double poleLongitude =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.OBLIQUE_PROJ_POLE_LONGITUDE")) * dfLongitudeMulFactor;
const double poleRotation =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.OBLIQUE_PROJ_POLE_ROTATION"));
CPLString oProj4String;
// ISIS3 rotated pole doesn't use the same conventions than PROJ ob_tran
// Compare the sign difference in https://github.com/USGS-Astrogeology/ISIS3/blob/3.8.0/isis/src/base/objs/ObliqueCylindrical/ObliqueCylindrical.cpp#L244
// and https://github.com/OSGeo/PROJ/blob/6.2/src/projections/ob_tran.cpp#L34
// They can be compensated by modifying the poleLatitude to 180-poleLatitude
// There's also a sign difference for the poleRotation parameter
// The existence of those different conventions is acknowledged in
// https://pds-imaging.jpl.nasa.gov/documentation/Cassini_BIDRSIS.PDF in the middle of page 10
oProj4String.Printf(
"+proj=ob_tran +o_proj=eqc +o_lon_p=%.18g +o_lat_p=%.18g +lon_0=%.18g",
-poleRotation,
180-poleLatitude,
poleLongitude);
oSRS.SetFromUserInput(oProj4String);
} else {
CPLDebug( "PDS",
"Dataset projection %s is not supported. Continuing...",
map_proj_name.c_str() );
bProjectionSet = false;
}
if (bProjectionSet) {
//Create projection name, i.e. MERCATOR MARS and set as ProjCS keyword
const CPLString proj_target_name = map_proj_name + " " + target_name;
oSRS.SetProjCS(proj_target_name); //set ProjCS keyword
//The geographic/geocentric name will be the same basic name as the body name
//'GCS' = Geographic/Geocentric Coordinate System
const CPLString geog_name = "GCS_" + target_name;
//The datum and sphere names will be the same basic name aas the planet
const CPLString datum_name = "D_" + target_name;
// Might not be IAU defined so don't add.
CPLString sphere_name = target_name; // + "_IAU_IAG");
//calculate inverse flattening from major and minor axis: 1/f = a/(a-b)
double iflattening;
if ((semi_major - semi_minor) < 0.0000001)
iflattening = 0;
else
iflattening = semi_major / (semi_major - semi_minor);
//Set the body size but take into consideration which proj is being used to help w/ compatibility
//Notice that most PDS projections are spherical based on the fact that ISIS/PICS are spherical
//Set the body size but take into consideration which proj is being used to help w/ proj4 compatibility
//The use of a Sphere, polar radius or ellipse here is based on how ISIS does it internally
if ( ( (EQUAL( map_proj_name, "STEREOGRAPHIC" ) && (fabs(center_lat) == 90)) ) ||
(EQUAL( map_proj_name, "POLAR_STEREOGRAPHIC" )))
{
if (bIsGeographic) {
//Geograpraphic, so set an ellipse
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere using the semi-minor axis. I hope...
sphere_name += "_polarRadius";
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_minor, 0.0,
"Reference_Meridian", 0.0 );
}
}
else if ( (EQUAL( map_proj_name, "SIMPLE_CYLINDRICAL" )) ||
(EQUAL( map_proj_name, "EQUIDISTANT" )) ||
(EQUAL( map_proj_name, "ORTHOGRAPHIC" )) ||
(EQUAL( map_proj_name, "STEREOGRAPHIC" )) ||
(EQUAL( map_proj_name, "SINUSOIDAL" )) ) {
//isis uses the spherical equation for these projections so force a sphere
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
else if (EQUAL( map_proj_name, "EQUIRECTANGULAR" )) {
//isis uses local radius as a sphere, which is pre-calculated in the PDS label as the semi-major
sphere_name += "_localRadius";
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
else {
//All other projections: Mercator, Transverse Mercator, Lambert Conformal, etc.
//Geographic, so set an ellipse
if (bIsGeographic) {
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, iflattening,
"Reference_Meridian", 0.0 );
} else {
//Geocentric, so force a sphere. I hope...
oSRS.SetGeogCS( geog_name, datum_name, sphere_name,
semi_major, 0.0,
"Reference_Meridian", 0.0 );
}
}
// translate back into a projection string.
char *pszResult = nullptr;
oSRS.exportToWkt( &pszResult );
osProjection = pszResult;
CPLFree( pszResult );
}
/* ==================================================================== */
/* Check for a .prj and world file to override the georeferencing. */
/* ==================================================================== */
{
const CPLString osPath = CPLGetPath( pszFilename );
const CPLString osName = CPLGetBasename(pszFilename);
const char *pszPrjFile = CPLFormCIFilename( osPath, osName, "prj" );
VSILFILE *fp = VSIFOpenL( pszPrjFile, "r" );
if( fp != nullptr )
{
OGRSpatialReference oSRS2;
VSIFCloseL( fp );
char **papszLines = CSLLoad( pszPrjFile );
if( oSRS2.importFromESRI( papszLines ) == OGRERR_NONE )
{
char *pszResult = nullptr;
oSRS2.exportToWkt( &pszResult );
osProjection = pszResult;
CPLFree( pszResult );
}
CSLDestroy( papszLines );
}
}
if( dfULXMap != 0.5 || dfULYMap != 0.5 || dfXDim != 1.0 || dfYDim != 1.0 )
{
bGotTransform = TRUE;
adfGeoTransform[0] = dfULXMap;
adfGeoTransform[1] = dfXDim;
adfGeoTransform[2] = 0.0;
adfGeoTransform[3] = dfULYMap;
adfGeoTransform[4] = 0.0;
adfGeoTransform[5] = dfYDim;
const double rotation =
CPLAtof(GetKeyword( osPrefix + "IMAGE_MAP_PROJECTION.MAP_PROJECTION_ROTATION"));
if( rotation != 0 )
{
const double sin_rot = rotation == 90 ? 1.0 : sin(rotation / 180 * M_PI);
const double cos_rot = rotation == 90 ? 0.0 : cos(rotation / 180 * M_PI);
const double gt_1 = cos_rot * adfGeoTransform[1] - sin_rot * adfGeoTransform[4];
const double gt_2 = cos_rot * adfGeoTransform[2] - sin_rot * adfGeoTransform[5];
const double gt_0 = cos_rot * adfGeoTransform[0] - sin_rot * adfGeoTransform[3];
const double gt_4 = sin_rot * adfGeoTransform[1] + cos_rot * adfGeoTransform[4];
const double gt_5 = sin_rot * adfGeoTransform[2] + cos_rot * adfGeoTransform[5];
const double gt_3 = sin_rot * adfGeoTransform[0] + cos_rot * adfGeoTransform[3];
adfGeoTransform[1] = gt_1;
adfGeoTransform[2] = gt_2;
adfGeoTransform[0] = gt_0;
adfGeoTransform[4] = gt_4;
adfGeoTransform[5] = gt_5;
adfGeoTransform[3] = gt_3;
}
}
if( !bGotTransform )
bGotTransform =
GDALReadWorldFile( pszFilename, "psw",
adfGeoTransform );
if( !bGotTransform )
bGotTransform =
GDALReadWorldFile( pszFilename, "wld",
adfGeoTransform );
}
/************************************************************************/
/* GetRawBinaryLayout() */
/************************************************************************/
bool PDSDataset::GetRawBinaryLayout(GDALDataset::RawBinaryLayout& sLayout)
{
if( !RawDataset::GetRawBinaryLayout(sLayout) )
return false;
sLayout.osRawFilename = m_osImageFilename;
return true;
}
/************************************************************************/
/* PDSConvertFromHex() */
/************************************************************************/
static GUInt32 PDSConvertFromHex(const char* pszVal)
{
if( !STARTS_WITH_CI(pszVal, "16#") )
return 0;
pszVal += 3;
GUInt32 nVal = 0;
while( *pszVal != '#' && *pszVal != '\0' )
{
nVal <<= 4;
if( *pszVal >= '0' && *pszVal <= '9' )
nVal += *pszVal - '0';
else if( *pszVal >= 'A' && *pszVal <= 'F' )
nVal += *pszVal - 'A' + 10;
else
return 0;
pszVal ++;
}
return nVal;
}
/************************************************************************/
/* ParseImage() */
/************************************************************************/
int PDSDataset::ParseImage( CPLString osPrefix, CPLString osFilenamePrefix )
{
/* ------------------------------------------------------------------- */
/* We assume the user is pointing to the label (i.e. .lbl) file. */
/* ------------------------------------------------------------------- */
// IMAGE can be inline or detached and point to an image name
// ^IMAGE = 3
// ^IMAGE = "GLOBAL_ALBEDO_8PPD.IMG"
// ^IMAGE = "MEGT90N000CB.IMG"
// ^IMAGE = ("FOO.IMG",1) -- start at record 1 (1 based)
// ^IMAGE = ("FOO.IMG") -- start at record 1 equiv of ("FOO.IMG",1)
// ^IMAGE = ("FOO.IMG", 5 <BYTES>) -- start at byte 5 (the fifth byte in the file)
// ^IMAGE = 10851 <BYTES>
// ^SPECTRAL_QUBE = 5 for multi-band images
// ^QUBE = 5 for multi-band images
CPLString osImageKeyword = "IMAGE";
CPLString osQube = GetKeyword( osPrefix + "^" + osImageKeyword, "" );
m_osImageFilename = GetDescription();
if (EQUAL(osQube,"")) {
osImageKeyword = "SPECTRAL_QUBE";
osQube = GetKeyword( osPrefix + "^" + osImageKeyword );
}
if (EQUAL(osQube,"")) {
osImageKeyword = "QUBE";
osQube = GetKeyword( osPrefix + "^" + osImageKeyword );
}
const int nQube = atoi(osQube);
int nDetachedOffset = 0;
bool bDetachedOffsetInBytes = false;
if( !osQube.empty() && osQube[0] == '(' )
{
osQube = "\"";
osQube += GetKeywordSub( osPrefix + "^" + osImageKeyword, 1 );
osQube += "\"";
nDetachedOffset = atoi(GetKeywordSub( osPrefix + "^" + osImageKeyword, 2, "1"));
if( nDetachedOffset >= 1 )
nDetachedOffset -= 1;
// If this is not explicitly in bytes, then it is assumed to be in
// records, and we need to translate to bytes.
if (strstr(GetKeywordSub(osPrefix + "^" + osImageKeyword, 2),"<BYTES>") != nullptr)
bDetachedOffsetInBytes = true;
}
if( !osQube.empty() && osQube[0] == '"' )
{
CPLString osFilename = osQube;
CleanString( osFilename );
if( !osFilenamePrefix.empty() )
{
m_osImageFilename = osFilenamePrefix + osFilename;
}
else
{
CPLString osTPath = CPLGetPath(GetDescription());
m_osImageFilename = CPLFormCIFilename( osTPath, osFilename, nullptr );
osExternalCube = m_osImageFilename;
}
}
/* -------------------------------------------------------------------- */
/* Checks to see if this is raw PDS image not compressed image */
/* so ENCODING_TYPE either does not exist or it equals "N/A". */
/* or "DCT_DECOMPRESSED". */
/* Compressed types will not be supported in this routine */
/* -------------------------------------------------------------------- */
CPLString osEncodingType = GetKeyword(osPrefix+"IMAGE.ENCODING_TYPE","N/A");
CleanString(osEncodingType);
if ( !EQUAL(osEncodingType,"N/A") &&
!EQUAL(osEncodingType,"DCT_DECOMPRESSED") )
{
CPLError( CE_Failure, CPLE_OpenFailed,
"*** PDS image file has an ENCODING_TYPE parameter:\n"
"*** GDAL PDS driver does not support compressed image types\n"
"found: (%s)\n\n", osEncodingType.c_str() );
return FALSE;
}
/**************** end ENCODING_TYPE check ***********************/
/*********** Grab layout type (BSQ, BIP, BIL) ************/
// AXIS_NAME = (SAMPLE,LINE,BAND)
/*********** Grab samples lines band **************/
/** if AXIS_NAME = "" then Bands=1 and Sample and Lines **/
/** are there own keywords "LINES" and "LINE_SAMPLES" **/
/** if not NULL then CORE_ITEMS keyword i.e. (234,322,2) **/
/***********************************************************/
int eLayout = PDS_BSQ; //default to band seq.
int nRows, nCols, l_nBands = 1;
CPLString value = GetKeyword( osPrefix+osImageKeyword+".AXIS_NAME", "" );
if (EQUAL(value,"(SAMPLE,LINE,BAND)") ) {
eLayout = PDS_BSQ;
nCols = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",1));
nRows = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",2));
l_nBands = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",3));
}
else if (EQUAL(value,"(BAND,LINE,SAMPLE)") ) {
eLayout = PDS_BIP;
l_nBands = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",1));
nRows = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",2));
nCols = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",3));
}
else if (EQUAL(value,"(SAMPLE,BAND,LINE)") ) {
eLayout = PDS_BIL;
nCols = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",1));
l_nBands = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",2));
nRows = atoi(GetKeywordSub(osPrefix+osImageKeyword+".CORE_ITEMS",3));
}
else if ( EQUAL(value,"") ) {
eLayout = PDS_BSQ;
nCols = atoi(GetKeyword(osPrefix+osImageKeyword+".LINE_SAMPLES",""));
nRows = atoi(GetKeyword(osPrefix+osImageKeyword+".LINES",""));
l_nBands = atoi(GetKeyword(osPrefix+osImageKeyword+".BANDS","1"));
}
else {
CPLError( CE_Failure, CPLE_OpenFailed,
"%s layout not supported. Abort\n\n", value.c_str() );
return FALSE;
}
CPLString osBAND_STORAGE_TYPE = GetKeyword(osPrefix+"IMAGE.BAND_STORAGE_TYPE","");
if( EQUAL(osBAND_STORAGE_TYPE, "BAND_SEQUENTIAL") )
{
eLayout = PDS_BSQ;
}
else if( EQUAL(osBAND_STORAGE_TYPE, "PIXEL_INTERLEAVED") )
{
eLayout = PDS_BIP;
}
else if( EQUAL(osBAND_STORAGE_TYPE, "LINE_INTERLEAVED") )
{
eLayout = PDS_BIL;
}
else if( !osBAND_STORAGE_TYPE.empty() )
{
CPLDebug("PDS", "Unhandled BAND_STORAGE_TYPE = %s",
osBAND_STORAGE_TYPE.c_str());
}
/*********** Grab Qube record bytes **********/
int record_bytes = atoi(GetKeyword(osPrefix+"IMAGE.RECORD_BYTES"));
if (record_bytes == 0)
record_bytes = atoi(GetKeyword(osPrefix+"RECORD_BYTES"));
// this can happen with "record_type = undefined".
if( record_bytes < 0 )
return FALSE;
if( record_bytes == 0 )
record_bytes = 1;
int nSkipBytes = 0;
try
{
if (nQube > 0 )
{
if( osQube.find("<BYTES>") != CPLString::npos )
nSkipBytes = (CPLSM(nQube) - CPLSM(1)).v();
else
nSkipBytes = (CPLSM(nQube - 1) * CPLSM(record_bytes)).v();
}
else if( nDetachedOffset > 0 )
{
if (bDetachedOffsetInBytes)
nSkipBytes = nDetachedOffset;
else
{
nSkipBytes = (CPLSM(nDetachedOffset) * CPLSM(record_bytes)).v();
}
}
else
nSkipBytes = 0;
}
catch( const CPLSafeIntOverflow& )
{
return FALSE;
}
const int nLinePrefixBytes
= atoi(GetKeyword(osPrefix+"IMAGE.LINE_PREFIX_BYTES",""));
if( nLinePrefixBytes < 0 )
return false;
nSkipBytes += nLinePrefixBytes;
/*********** Grab SAMPLE_TYPE *****************/
/** if keyword not found leave as "M" or "MSB" **/
CPLString osST = GetKeyword( osPrefix+"IMAGE.SAMPLE_TYPE" );
if( osST.size() >= 2 && osST[0] == '"' && osST.back() == '"' )
osST = osST.substr( 1, osST.size() - 2 );
char chByteOrder = 'M'; //default to MSB
if( (EQUAL(osST,"LSB_INTEGER")) ||
(EQUAL(osST,"LSB")) || // just in case
(EQUAL(osST,"LSB_UNSIGNED_INTEGER")) ||
(EQUAL(osST,"LSB_SIGNED_INTEGER")) ||
(EQUAL(osST,"UNSIGNED_INTEGER")) ||
(EQUAL(osST,"VAX_REAL")) ||
(EQUAL(osST,"VAX_INTEGER")) ||
(EQUAL(osST,"PC_INTEGER")) || //just in case
(EQUAL(osST,"PC_REAL")) ) {
chByteOrder = 'I';
}
/**** Grab format type - pds supports 1,2,4,8,16,32,64 (in theory) **/
/**** I have only seen 8, 16, 32 (float) in released datasets **/
GDALDataType eDataType = GDT_Byte;
int nSuffixItems = 0;
int nSuffixLines = 0;
int nSuffixBytes = 4; // Default as per PDS specification
double dfNoData = 0.0;
double dfScale = 1.0;
double dfOffset = 0.0;
const char *pszUnit = nullptr;
const char *pszDesc = nullptr;
CPLString osSB = GetKeyword(osPrefix+"IMAGE.SAMPLE_BITS","");
if ( !osSB.empty() )
{
const int itype = atoi(osSB);
switch(itype) {
case 8 :
eDataType = GDT_Byte;
dfNoData = NULL1;
break;
case 16 :
if( strstr(osST,"UNSIGNED") != nullptr )
{
dfNoData = NULL1;
eDataType = GDT_UInt16;
}
else
{
eDataType = GDT_Int16;
dfNoData = NULL2;
}
break;
case 32 :
eDataType = GDT_Float32;
dfNoData = NULL3;
break;
case 64 :
eDataType = GDT_Float64;
dfNoData = NULL3;
break;
default :
CPLError( CE_Failure, CPLE_AppDefined,
"Sample_bits of %d is not supported in this gdal PDS reader.",
itype);
return FALSE;
}
dfOffset = CPLAtofM(GetKeyword(osPrefix+"IMAGE.OFFSET","0.0"));
dfScale = CPLAtofM(GetKeyword(osPrefix+"IMAGE.SCALING_FACTOR","1.0"));
}
else /* No IMAGE object, search for the QUBE. */
{
osSB = GetKeyword(osPrefix+"SPECTRAL_QUBE.CORE_ITEM_BYTES","");
const int itype = atoi(osSB);
switch(itype) {