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gdalpamrasterband.cpp
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/******************************************************************************
*
* Project: GDAL Core
* Purpose: Implementation of GDALPamRasterBand, a raster band base class
* that knows how to persistently store auxiliary metadata in an
* external xml file.
* Author: Frank Warmerdam, [email protected]
*
******************************************************************************
* Copyright (c) 2005, 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.
****************************************************************************/
#include "cpl_port.h"
#include "gdal_pam.h"
#include <climits>
#include <cmath>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include "cpl_conv.h"
#include "cpl_error.h"
#include "cpl_minixml.h"
#include "cpl_progress.h"
#include "cpl_string.h"
#include "cpl_vsi.h"
#include "gdal.h"
#include "gdal_priv.h"
#include "gdal_rat.h"
CPL_CVSID("$Id$")
/************************************************************************/
/* GDALPamRasterBand() */
/************************************************************************/
GDALPamRasterBand::GDALPamRasterBand()
{
SetMOFlags( GetMOFlags() | GMO_PAM_CLASS );
}
/************************************************************************/
/* GDALPamRasterBand() */
/************************************************************************/
//! @cond Doxygen_Suppress
GDALPamRasterBand::GDALPamRasterBand( int bForceCachedIOIn ) :
GDALRasterBand(bForceCachedIOIn)
{
SetMOFlags( GetMOFlags() | GMO_PAM_CLASS );
}
//! @endcond
/************************************************************************/
/* ~GDALPamRasterBand() */
/************************************************************************/
GDALPamRasterBand::~GDALPamRasterBand()
{
PamClear();
}
/************************************************************************/
/* SerializeToXML() */
/************************************************************************/
//! @cond Doxygen_Suppress
CPLXMLNode *GDALPamRasterBand::SerializeToXML( const char * /* pszUnused */ )
{
if( psPam == nullptr )
return nullptr;
/* -------------------------------------------------------------------- */
/* Setup root node and attributes. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psTree = CPLCreateXMLNode( nullptr, CXT_Element, "PAMRasterBand" );
CPLString oFmt;
if( GetBand() > 0 )
CPLSetXMLValue( psTree, "#band", oFmt.Printf( "%d", GetBand() ) );
/* -------------------------------------------------------------------- */
/* Serialize information of interest. */
/* -------------------------------------------------------------------- */
if( strlen(GetDescription()) > 0 )
CPLSetXMLValue( psTree, "Description", GetDescription() );
if( psPam->bNoDataValueSet )
{
if( CPLIsNan(psPam->dfNoDataValue) )
CPLSetXMLValue( psTree, "NoDataValue", "nan" );
else
CPLSetXMLValue( psTree, "NoDataValue",
oFmt.Printf( "%.14E", psPam->dfNoDataValue ) );
// Hex encode real floating point values.
if( psPam->dfNoDataValue != floor(psPam->dfNoDataValue )
|| psPam->dfNoDataValue != CPLAtof(oFmt) )
{
double dfNoDataLittleEndian = psPam->dfNoDataValue;
CPL_LSBPTR64( &dfNoDataLittleEndian );
char *pszHexEncoding =
CPLBinaryToHex(
8, reinterpret_cast<GByte *>( &dfNoDataLittleEndian ) );
CPLSetXMLValue( psTree, "NoDataValue.#le_hex_equiv",
pszHexEncoding );
CPLFree( pszHexEncoding );
}
}
if( psPam->pszUnitType != nullptr )
CPLSetXMLValue( psTree, "UnitType", psPam->pszUnitType );
if( psPam->dfOffset != 0.0 )
CPLSetXMLValue( psTree, "Offset",
oFmt.Printf( "%.16g", psPam->dfOffset ) );
if( psPam->dfScale != 1.0 )
CPLSetXMLValue( psTree, "Scale",
oFmt.Printf( "%.16g", psPam->dfScale ) );
if( psPam->eColorInterp != GCI_Undefined )
CPLSetXMLValue( psTree, "ColorInterp",
GDALGetColorInterpretationName( psPam->eColorInterp ));
/* -------------------------------------------------------------------- */
/* Category names. */
/* -------------------------------------------------------------------- */
if( psPam->papszCategoryNames != nullptr )
{
CPLXMLNode *psCT_XML = CPLCreateXMLNode( psTree, CXT_Element,
"CategoryNames" );
CPLXMLNode* psLastChild = nullptr;
for( int iEntry=0; psPam->papszCategoryNames[iEntry] != nullptr; iEntry++)
{
CPLXMLNode *psNode = CPLCreateXMLElementAndValue(
nullptr, "Category", psPam->papszCategoryNames[iEntry] );
if( psLastChild == nullptr )
psCT_XML->psChild = psNode;
else
psLastChild->psNext = psNode;
psLastChild = psNode;
}
}
/* -------------------------------------------------------------------- */
/* Color Table. */
/* -------------------------------------------------------------------- */
if( psPam->poColorTable != nullptr )
{
CPLXMLNode *psCT_XML = CPLCreateXMLNode( psTree, CXT_Element,
"ColorTable" );
CPLXMLNode* psLastChild = nullptr;
for( int iEntry = 0;
iEntry < psPam->poColorTable->GetColorEntryCount();
iEntry++ )
{
CPLXMLNode *psEntry_XML = CPLCreateXMLNode( nullptr, CXT_Element,
"Entry" );
if( psLastChild == nullptr )
psCT_XML->psChild = psEntry_XML;
else
psLastChild->psNext = psEntry_XML;
psLastChild = psEntry_XML;
GDALColorEntry sEntry;
psPam->poColorTable->GetColorEntryAsRGB( iEntry, &sEntry );
CPLSetXMLValue( psEntry_XML, "#c1", oFmt.Printf("%d",sEntry.c1) );
CPLSetXMLValue( psEntry_XML, "#c2", oFmt.Printf("%d",sEntry.c2) );
CPLSetXMLValue( psEntry_XML, "#c3", oFmt.Printf("%d",sEntry.c3) );
CPLSetXMLValue( psEntry_XML, "#c4", oFmt.Printf("%d",sEntry.c4) );
}
}
/* -------------------------------------------------------------------- */
/* Min/max. */
/* -------------------------------------------------------------------- */
if( psPam->bHaveMinMax )
{
CPLSetXMLValue( psTree, "Minimum",
oFmt.Printf( "%.16g", psPam->dfMin ) );
CPLSetXMLValue( psTree, "Maximum",
oFmt.Printf( "%.16g", psPam->dfMax ) );
}
/* -------------------------------------------------------------------- */
/* Statistics */
/* -------------------------------------------------------------------- */
if( psPam->bHaveStats )
{
CPLSetXMLValue( psTree, "Mean",
oFmt.Printf( "%.16g", psPam->dfMean ) );
CPLSetXMLValue( psTree, "StandardDeviation",
oFmt.Printf( "%.16g", psPam->dfStdDev ) );
}
/* -------------------------------------------------------------------- */
/* Histograms. */
/* -------------------------------------------------------------------- */
if( psPam->psSavedHistograms != nullptr )
CPLAddXMLChild( psTree, CPLCloneXMLTree( psPam->psSavedHistograms ) );
/* -------------------------------------------------------------------- */
/* Raster Attribute Table */
/* -------------------------------------------------------------------- */
if( psPam->poDefaultRAT != nullptr )
{
CPLXMLNode* psSerializedRAT = psPam->poDefaultRAT->Serialize();
if( psSerializedRAT != nullptr )
CPLAddXMLChild( psTree, psSerializedRAT );
}
/* -------------------------------------------------------------------- */
/* Metadata. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psMD = oMDMD.Serialize();
if( psMD != nullptr )
{
CPLAddXMLChild( psTree, psMD );
}
/* -------------------------------------------------------------------- */
/* We don't want to return anything if we had no metadata to */
/* attach. */
/* -------------------------------------------------------------------- */
if( psTree->psChild == nullptr || psTree->psChild->psNext == nullptr )
{
CPLDestroyXMLNode( psTree );
psTree = nullptr;
}
return psTree;
}
/************************************************************************/
/* PamInitialize() */
/************************************************************************/
void GDALPamRasterBand::PamInitialize()
{
if( psPam )
return;
GDALDataset* poNonPamParentDS = GetDataset();
if( poNonPamParentDS == nullptr ||
!(poNonPamParentDS->GetMOFlags() & GMO_PAM_CLASS) )
return;
GDALPamDataset *poParentDS =
dynamic_cast<GDALPamDataset *>( poNonPamParentDS );
if( poParentDS == nullptr ) {
// Should never happen.
CPLError(CE_Failure, CPLE_AppDefined,
"Programming error: found GDALPamRasterBand that is not "
"attached to a GDALPamDataset.");
return;
}
poParentDS->PamInitialize();
if( poParentDS->psPam == nullptr )
return;
// Often (always?) initializing our parent will have initialized us.
if( psPam != nullptr )
return;
psPam = static_cast<GDALRasterBandPamInfo *>(
VSI_CALLOC_VERBOSE(sizeof(GDALRasterBandPamInfo), 1) );
if( psPam == nullptr )
return;
psPam->dfScale = 1.0;
psPam->poParentDS = poParentDS;
psPam->dfNoDataValue = -1e10;
psPam->poDefaultRAT = nullptr;
}
/************************************************************************/
/* PamClear() */
/************************************************************************/
void GDALPamRasterBand::PamClear()
{
if( !psPam )
return;
if( psPam->poColorTable )
delete psPam->poColorTable;
psPam->poColorTable = nullptr;
CPLFree( psPam->pszUnitType );
CSLDestroy( psPam->papszCategoryNames );
if( psPam->poDefaultRAT != nullptr )
{
delete psPam->poDefaultRAT;
psPam->poDefaultRAT = nullptr;
}
if( psPam->psSavedHistograms != nullptr )
{
CPLDestroyXMLNode (psPam->psSavedHistograms );
psPam->psSavedHistograms = nullptr;
}
CPLFree( psPam );
psPam = nullptr;
}
/************************************************************************/
/* XMLInit() */
/************************************************************************/
CPLErr GDALPamRasterBand::XMLInit( CPLXMLNode *psTree,
const char * /* pszUnused */ )
{
PamInitialize();
/* -------------------------------------------------------------------- */
/* Apply any dataset level metadata. */
/* -------------------------------------------------------------------- */
oMDMD.XMLInit( psTree, TRUE );
/* -------------------------------------------------------------------- */
/* Collect various other items of metadata. */
/* -------------------------------------------------------------------- */
GDALMajorObject::SetDescription(
CPLGetXMLValue( psTree, "Description", "" ) );
if( CPLGetXMLValue( psTree, "NoDataValue", nullptr ) != nullptr )
{
const char *pszLEHex =
CPLGetXMLValue( psTree, "NoDataValue.le_hex_equiv", nullptr );
if( pszLEHex != nullptr )
{
int nBytes;
GByte *pabyBin = CPLHexToBinary( pszLEHex, &nBytes );
if( nBytes == 8 )
{
CPL_LSBPTR64( pabyBin );
GDALPamRasterBand::SetNoDataValue( *reinterpret_cast<const double*>(pabyBin) );
}
else
{
GDALPamRasterBand::SetNoDataValue(
CPLAtof(CPLGetXMLValue( psTree, "NoDataValue", "0" )) );
}
CPLFree( pabyBin );
}
else
{
GDALPamRasterBand::SetNoDataValue(
CPLAtof(CPLGetXMLValue( psTree, "NoDataValue", "0" )) );
}
}
GDALPamRasterBand::SetOffset(
CPLAtof(CPLGetXMLValue( psTree, "Offset", "0.0" )) );
GDALPamRasterBand::SetScale(
CPLAtof(CPLGetXMLValue( psTree, "Scale", "1.0" )) );
GDALPamRasterBand::SetUnitType( CPLGetXMLValue( psTree, "UnitType", nullptr));
if( CPLGetXMLValue( psTree, "ColorInterp", nullptr ) != nullptr )
{
const char *pszInterp = CPLGetXMLValue( psTree, "ColorInterp", nullptr );
GDALPamRasterBand::SetColorInterpretation(
GDALGetColorInterpretationByName(pszInterp));
}
/* -------------------------------------------------------------------- */
/* Category names. */
/* -------------------------------------------------------------------- */
if( CPLGetXMLNode( psTree, "CategoryNames" ) != nullptr )
{
CPLStringList oCategoryNames;
for( CPLXMLNode *psEntry =
CPLGetXMLNode( psTree, "CategoryNames" )->psChild;
psEntry != nullptr;
psEntry = psEntry->psNext )
{
/* Don't skip <Category> tag with empty content */
if( psEntry->eType != CXT_Element
|| !EQUAL(psEntry->pszValue,"Category")
|| (psEntry->psChild != nullptr &&
psEntry->psChild->eType != CXT_Text) )
continue;
oCategoryNames.AddString(
psEntry->psChild ? psEntry->psChild->pszValue : "" );
}
GDALPamRasterBand::SetCategoryNames( oCategoryNames.List() );
}
/* -------------------------------------------------------------------- */
/* Collect a color table. */
/* -------------------------------------------------------------------- */
if( CPLGetXMLNode( psTree, "ColorTable" ) != nullptr )
{
GDALColorTable oTable;
int iEntry = 0;
for( CPLXMLNode *psEntry =
CPLGetXMLNode( psTree, "ColorTable" )->psChild;
psEntry != nullptr;
psEntry = psEntry->psNext )
{
if( !(psEntry->eType == CXT_Element &&
EQUAL(psEntry->pszValue, "Entry")) )
{
continue;
}
GDALColorEntry sCEntry = {
static_cast<short>(atoi(CPLGetXMLValue( psEntry, "c1", "0" ))),
static_cast<short>(atoi(CPLGetXMLValue( psEntry, "c2", "0" ))),
static_cast<short>(atoi(CPLGetXMLValue( psEntry, "c3", "0" ))),
static_cast<short>(atoi(CPLGetXMLValue( psEntry, "c4", "255" )))
};
oTable.SetColorEntry( iEntry++, &sCEntry );
}
GDALPamRasterBand::SetColorTable( &oTable );
}
/* -------------------------------------------------------------------- */
/* Do we have a complete set of stats? */
/* -------------------------------------------------------------------- */
if( CPLGetXMLNode( psTree, "Minimum" ) != nullptr
&& CPLGetXMLNode( psTree, "Maximum" ) != nullptr )
{
psPam->bHaveMinMax = TRUE;
psPam->dfMin = CPLAtofM(CPLGetXMLValue(psTree, "Minimum","0"));
psPam->dfMax = CPLAtofM(CPLGetXMLValue(psTree, "Maximum","0"));
}
if( CPLGetXMLNode( psTree, "Mean" ) != nullptr
&& CPLGetXMLNode( psTree, "StandardDeviation" ) != nullptr )
{
psPam->bHaveStats = TRUE;
psPam->dfMean = CPLAtofM(CPLGetXMLValue(psTree, "Mean","0"));
psPam->dfStdDev =
CPLAtofM(CPLGetXMLValue(psTree, "StandardDeviation", "0"));
}
/* -------------------------------------------------------------------- */
/* Histograms */
/* -------------------------------------------------------------------- */
CPLXMLNode *psHist = CPLGetXMLNode( psTree, "Histograms" );
if( psHist != nullptr )
{
CPLXMLNode *psNext = psHist->psNext;
psHist->psNext = nullptr;
if( psPam->psSavedHistograms != nullptr )
{
CPLDestroyXMLNode (psPam->psSavedHistograms );
psPam->psSavedHistograms = nullptr;
}
psPam->psSavedHistograms = CPLCloneXMLTree( psHist );
psHist->psNext = psNext;
}
/* -------------------------------------------------------------------- */
/* Raster Attribute Table */
/* -------------------------------------------------------------------- */
CPLXMLNode *psRAT = CPLGetXMLNode( psTree, "GDALRasterAttributeTable" );
if( psRAT != nullptr )
{
if( psPam->poDefaultRAT != nullptr )
{
delete psPam->poDefaultRAT;
psPam->poDefaultRAT = nullptr;
}
psPam->poDefaultRAT = new GDALDefaultRasterAttributeTable();
psPam->poDefaultRAT->XMLInit( psRAT, "" );
}
return CE_None;
}
/************************************************************************/
/* CloneInfo() */
/************************************************************************/
CPLErr GDALPamRasterBand::CloneInfo( GDALRasterBand *poSrcBand,
int nCloneFlags )
{
const bool bOnlyIfMissing = (nCloneFlags & GCIF_ONLY_IF_MISSING) != 0;
const int nSavedMOFlags = GetMOFlags();
PamInitialize();
/* -------------------------------------------------------------------- */
/* Suppress NotImplemented error messages - mainly needed if PAM */
/* disabled. */
/* -------------------------------------------------------------------- */
SetMOFlags( nSavedMOFlags | GMO_IGNORE_UNIMPLEMENTED );
/* -------------------------------------------------------------------- */
/* Metadata */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_BAND_METADATA )
{
if( poSrcBand->GetMetadata() != nullptr )
{
if( !bOnlyIfMissing
|| CSLCount(GetMetadata()) !=
CSLCount(poSrcBand->GetMetadata()) )
{
SetMetadata( poSrcBand->GetMetadata() );
}
}
}
/* -------------------------------------------------------------------- */
/* Band description. */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_BAND_DESCRIPTION )
{
if( strlen(poSrcBand->GetDescription()) > 0 )
{
if( !bOnlyIfMissing || strlen(GetDescription()) == 0 )
GDALPamRasterBand::SetDescription( poSrcBand->GetDescription());
}
}
/* -------------------------------------------------------------------- */
/* NODATA */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_NODATA )
{
int bSuccess = FALSE;
const double dfNoData = poSrcBand->GetNoDataValue( &bSuccess );
if( bSuccess )
{
if( !bOnlyIfMissing )
GDALPamRasterBand::SetNoDataValue( dfNoData );
else
{
const double dfExistingNoData = GetNoDataValue( &bSuccess );
if( !bSuccess ||
!((std::isnan(dfExistingNoData) && std::isnan(dfNoData)) ||
dfExistingNoData == dfNoData) )
{
GDALPamRasterBand::SetNoDataValue( dfNoData );
}
}
}
}
/* -------------------------------------------------------------------- */
/* Category names */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_CATEGORYNAMES )
{
if( poSrcBand->GetCategoryNames() != nullptr )
{
if( !bOnlyIfMissing || GetCategoryNames() == nullptr )
GDALPamRasterBand::SetCategoryNames(
poSrcBand->GetCategoryNames() );
}
}
/* -------------------------------------------------------------------- */
/* Offset/scale */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_SCALEOFFSET )
{
int bSuccess = FALSE; // TODO(schwehr): int -> bool.
const double dfOffset = poSrcBand->GetOffset( &bSuccess );
if( bSuccess )
{
if( !bOnlyIfMissing || GetOffset() != dfOffset )
GDALPamRasterBand::SetOffset( dfOffset );
}
const double dfScale = poSrcBand->GetScale( &bSuccess );
if( bSuccess )
{
if( !bOnlyIfMissing || GetScale() != dfScale )
GDALPamRasterBand::SetScale( dfScale );
}
}
/* -------------------------------------------------------------------- */
/* Unittype. */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_UNITTYPE )
{
if( strlen(poSrcBand->GetUnitType()) > 0 )
{
if( !bOnlyIfMissing
|| !EQUAL(GetUnitType(),poSrcBand->GetUnitType()) )
{
GDALPamRasterBand::SetUnitType( poSrcBand->GetUnitType() );
}
}
}
/* -------------------------------------------------------------------- */
/* ColorInterp */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_COLORINTERP )
{
if( poSrcBand->GetColorInterpretation() != GCI_Undefined )
{
if( !bOnlyIfMissing
|| poSrcBand->GetColorInterpretation()
!= GetColorInterpretation() )
GDALPamRasterBand::SetColorInterpretation(
poSrcBand->GetColorInterpretation() );
}
}
/* -------------------------------------------------------------------- */
/* color table. */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_COLORTABLE )
{
if( poSrcBand->GetColorTable() != nullptr )
{
if( !bOnlyIfMissing || GetColorTable() == nullptr )
{
GDALPamRasterBand::SetColorTable(
poSrcBand->GetColorTable() );
}
}
}
/* -------------------------------------------------------------------- */
/* Raster Attribute Table. */
/* -------------------------------------------------------------------- */
if( nCloneFlags & GCIF_RAT )
{
const GDALRasterAttributeTable *poRAT = poSrcBand->GetDefaultRAT();
if( poRAT != nullptr &&
(poRAT->GetRowCount() != 0 || poRAT->GetColumnCount() != 0) )
{
if( !bOnlyIfMissing || GetDefaultRAT() == nullptr )
{
GDALPamRasterBand::SetDefaultRAT( poRAT );
}
}
}
/* -------------------------------------------------------------------- */
/* Restore MO flags. */
/* -------------------------------------------------------------------- */
SetMOFlags( nSavedMOFlags );
return CE_None;
}
//! @endcond
/************************************************************************/
/* SetMetadata() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetMetadata( char **papszMetadata,
const char *pszDomain )
{
PamInitialize();
if( psPam )
psPam->poParentDS->MarkPamDirty();
return GDALRasterBand::SetMetadata( papszMetadata, pszDomain );
}
/************************************************************************/
/* SetMetadataItem() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetMetadataItem( const char *pszName,
const char *pszValue,
const char *pszDomain )
{
PamInitialize();
if( psPam )
psPam->poParentDS->MarkPamDirty();
return GDALRasterBand::SetMetadataItem( pszName, pszValue, pszDomain );
}
/************************************************************************/
/* SetNoDataValue() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetNoDataValue( double dfNewValue )
{
PamInitialize();
if( !psPam )
return GDALRasterBand::SetNoDataValue( dfNewValue );
psPam->bNoDataValueSet = TRUE;
psPam->dfNoDataValue = dfNewValue;
psPam->poParentDS->MarkPamDirty();
return CE_None;
}
/************************************************************************/
/* DeleteNoDataValue() */
/************************************************************************/
CPLErr GDALPamRasterBand::DeleteNoDataValue()
{
PamInitialize();
if( !psPam )
return GDALRasterBand::DeleteNoDataValue();
psPam->bNoDataValueSet = FALSE;
psPam->dfNoDataValue = 0.0;
psPam->poParentDS->MarkPamDirty();
return CE_None;
}
/************************************************************************/
/* GetNoDataValue() */
/************************************************************************/
double GDALPamRasterBand::GetNoDataValue( int *pbSuccess )
{
if( psPam == nullptr )
return GDALRasterBand::GetNoDataValue( pbSuccess );
if( pbSuccess )
*pbSuccess = psPam->bNoDataValueSet;
return psPam->dfNoDataValue;
}
/************************************************************************/
/* GetOffset() */
/************************************************************************/
double GDALPamRasterBand::GetOffset( int *pbSuccess )
{
if( !psPam )
return GDALRasterBand::GetOffset( pbSuccess );
if( pbSuccess != nullptr )
*pbSuccess = psPam->bOffsetSet;
return psPam->dfOffset;
}
/************************************************************************/
/* SetOffset() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetOffset( double dfNewOffset )
{
PamInitialize();
if( psPam == nullptr )
return GDALRasterBand::SetOffset( dfNewOffset );
if( psPam->dfOffset != dfNewOffset )
{
psPam->dfOffset = dfNewOffset;
psPam->bOffsetSet = true;
psPam->poParentDS->MarkPamDirty();
}
return CE_None;
}
/************************************************************************/
/* GetScale() */
/************************************************************************/
double GDALPamRasterBand::GetScale( int *pbSuccess )
{
if( !psPam )
return GDALRasterBand::GetScale( pbSuccess );
if( pbSuccess != nullptr )
*pbSuccess = psPam->bScaleSet;
return psPam->dfScale;
}
/************************************************************************/
/* SetScale() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetScale( double dfNewScale )
{
PamInitialize();
if( psPam == nullptr )
return GDALRasterBand::SetScale( dfNewScale );
if( dfNewScale != psPam->dfScale )
{
psPam->dfScale = dfNewScale;
psPam->bScaleSet = true;
psPam->poParentDS->MarkPamDirty();
}
return CE_None;
}
/************************************************************************/
/* GetUnitType() */
/************************************************************************/
const char *GDALPamRasterBand::GetUnitType()
{
if( psPam == nullptr )
return GDALRasterBand::GetUnitType();
if( psPam->pszUnitType == nullptr )
return "";
return psPam->pszUnitType;
}
/************************************************************************/
/* SetUnitType() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetUnitType( const char *pszNewValue )
{
PamInitialize();
if( !psPam )
return GDALRasterBand::SetUnitType( pszNewValue );
if( pszNewValue == nullptr || pszNewValue[0] == '\0' )
{
if( psPam->pszUnitType != nullptr )
psPam->poParentDS->MarkPamDirty();
CPLFree( psPam->pszUnitType );
psPam->pszUnitType = nullptr;
}
else
{
if( psPam->pszUnitType == nullptr ||
strcmp(psPam->pszUnitType, pszNewValue) != 0 )
psPam->poParentDS->MarkPamDirty();
CPLFree( psPam->pszUnitType );
psPam->pszUnitType = CPLStrdup(pszNewValue);
}
return CE_None;
}
/************************************************************************/
/* GetCategoryNames() */
/************************************************************************/
char **GDALPamRasterBand::GetCategoryNames()
{
if( psPam )
return psPam->papszCategoryNames;
return GDALRasterBand::GetCategoryNames();
}
/************************************************************************/
/* SetCategoryNames() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetCategoryNames( char ** papszNewNames )
{
PamInitialize();
if( !psPam )
return GDALRasterBand::SetCategoryNames( papszNewNames );
CSLDestroy( psPam->papszCategoryNames );
psPam->papszCategoryNames = CSLDuplicate( papszNewNames );
psPam->poParentDS->MarkPamDirty();
return CE_None;
}
/************************************************************************/
/* GetColorTable() */
/************************************************************************/
GDALColorTable *GDALPamRasterBand::GetColorTable()
{
if( psPam )
return psPam->poColorTable;
return GDALRasterBand::GetColorTable();
}
/************************************************************************/
/* SetColorTable() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetColorTable( GDALColorTable *poTableIn )
{
PamInitialize();
if( !psPam )
return GDALRasterBand::SetColorTable( poTableIn );
if( psPam->poColorTable != nullptr )
{
delete psPam->poColorTable;
psPam->poColorTable = nullptr;
}
if( poTableIn )
{
psPam->poColorTable = poTableIn->Clone();
psPam->eColorInterp = GCI_PaletteIndex;
}
psPam->poParentDS->MarkPamDirty();
return CE_None;
}
/************************************************************************/
/* SetColorInterpretation() */
/************************************************************************/
CPLErr GDALPamRasterBand::SetColorInterpretation( GDALColorInterp eInterpIn )
{
PamInitialize();
if( psPam )
{
psPam->poParentDS->MarkPamDirty();
psPam->eColorInterp = eInterpIn;
return CE_None;
}
return GDALRasterBand::SetColorInterpretation( eInterpIn );
}
/************************************************************************/
/* GetColorInterpretation() */
/************************************************************************/
GDALColorInterp GDALPamRasterBand::GetColorInterpretation()