CPLXMLNode *VRTRasterBand::SerializeToXML( const char *pszVRTPath )
{
CPLXMLNode *psTree;
psTree = CPLCreateXMLNode( NULL, CXT_Element, "VRTRasterBand" );
/* -------------------------------------------------------------------- */
/* Various kinds of metadata. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psMD;
CPLSetXMLValue( psTree, "#dataType",
GDALGetDataTypeName( GetRasterDataType() ) );
if( nBand > 0 )
CPLSetXMLValue( psTree, "#band", CPLSPrintf( "%d", GetBand() ) );
psMD = oMDMD.Serialize();
if( psMD != NULL )
CPLAddXMLChild( psTree, psMD );
if( strlen(GetDescription()) > 0 )
CPLSetXMLValue( psTree, "Description", GetDescription() );
if( bNoDataValueSet )
{
if (CPLIsNan(dfNoDataValue))
CPLSetXMLValue( psTree, "NoDataValue", "nan");
else
CPLSetXMLValue( psTree, "NoDataValue",
CPLSPrintf( "%.14E", dfNoDataValue ) );
}
if( bHideNoDataValue )
CPLSetXMLValue( psTree, "HideNoDataValue",
CPLSPrintf( "%d", bHideNoDataValue ) );
if( pszUnitType != NULL )
CPLSetXMLValue( psTree, "UnitType", pszUnitType );
if( dfOffset != 0.0 )
CPLSetXMLValue( psTree, "Offset",
CPLSPrintf( "%.16g", dfOffset ) );
if( dfScale != 1.0 )
CPLSetXMLValue( psTree, "Scale",
CPLSPrintf( "%.16g", dfScale ) );
if( eColorInterp != GCI_Undefined )
CPLSetXMLValue( psTree, "ColorInterp",
GDALGetColorInterpretationName( eColorInterp ) );
/* -------------------------------------------------------------------- */
/* Category names. */
/* -------------------------------------------------------------------- */
if( papszCategoryNames != NULL )
{
CPLXMLNode *psCT_XML = CPLCreateXMLNode( psTree, CXT_Element,
"CategoryNames" );
CPLXMLNode* psLastChild = NULL;
for( int iEntry=0; papszCategoryNames[iEntry] != NULL; iEntry++ )
{
CPLXMLNode *psNode = CPLCreateXMLElementAndValue( NULL, "Category",
papszCategoryNames[iEntry] );
if( psLastChild == NULL )
psCT_XML->psChild = psNode;
else
psLastChild->psNext = psNode;
psLastChild = psNode;
}
}
/* -------------------------------------------------------------------- */
/* Histograms. */
/* -------------------------------------------------------------------- */
if( psSavedHistograms != NULL )
CPLAddXMLChild( psTree, CPLCloneXMLTree( psSavedHistograms ) );
/* -------------------------------------------------------------------- */
/* Color Table. */
/* -------------------------------------------------------------------- */
if( poColorTable != NULL )
{
CPLXMLNode *psCT_XML = CPLCreateXMLNode( psTree, CXT_Element,
"ColorTable" );
CPLXMLNode* psLastChild = NULL;
for( int iEntry=0; iEntry < poColorTable->GetColorEntryCount();
iEntry++ )
{
GDALColorEntry sEntry;
CPLXMLNode *psEntry_XML = CPLCreateXMLNode( NULL, CXT_Element,
"Entry" );
if( psLastChild == NULL )
psCT_XML->psChild = psEntry_XML;
else
psLastChild->psNext = psEntry_XML;
psLastChild = psEntry_XML;
poColorTable->GetColorEntryAsRGB( iEntry, &sEntry );
CPLSetXMLValue( psEntry_XML, "#c1", CPLSPrintf("%d",sEntry.c1) );
CPLSetXMLValue( psEntry_XML, "#c2", CPLSPrintf("%d",sEntry.c2) );
CPLSetXMLValue( psEntry_XML, "#c3", CPLSPrintf("%d",sEntry.c3) );
CPLSetXMLValue( psEntry_XML, "#c4", CPLSPrintf("%d",sEntry.c4) );
}
}
/* ==================================================================== */
/* Overviews */
/* ==================================================================== */
for( int iOvr = 0; iOvr < (int)apoOverviews.size(); iOvr ++ )
{
CPLXMLNode *psOVR_XML = CPLCreateXMLNode( psTree, CXT_Element,
"Overview" );
int bRelativeToVRT;
const char *pszRelativePath;
VSIStatBufL sStat;
if( VSIStatExL( apoOverviews[iOvr].osFilename, &sStat, VSI_STAT_EXISTS_FLAG ) != 0 )
{
pszRelativePath = apoOverviews[iOvr].osFilename;
bRelativeToVRT = FALSE;
}
else
{
pszRelativePath =
CPLExtractRelativePath( pszVRTPath, apoOverviews[iOvr].osFilename,
&bRelativeToVRT );
}
CPLSetXMLValue( psOVR_XML, "SourceFilename", pszRelativePath );
CPLCreateXMLNode(
CPLCreateXMLNode( CPLGetXMLNode( psOVR_XML, "SourceFilename" ),
CXT_Attribute, "relativeToVRT" ),
CXT_Text, bRelativeToVRT ? "1" : "0" );
CPLSetXMLValue( psOVR_XML, "SourceBand",
CPLSPrintf("%d",apoOverviews[iOvr].nBand) );
}
/* ==================================================================== */
/* Mask band (specific to that raster band) */
/* ==================================================================== */
if( poMaskBand != NULL )
{
CPLXMLNode *psBandTree =
poMaskBand->SerializeToXML(pszVRTPath);
if( psBandTree != NULL )
{
CPLXMLNode *psMaskBandElement = CPLCreateXMLNode( psTree, CXT_Element,
"MaskBand" );
CPLAddXMLChild( psMaskBandElement, psBandTree );
}
}
return psTree;
}
CPLXMLNode *VRTWarpedDataset::SerializeToXML( const char *pszVRTPath )
{
CPLXMLNode *psTree;
psTree = VRTDataset::SerializeToXML( pszVRTPath );
if( psTree == NULL )
return psTree;
/* -------------------------------------------------------------------- */
/* Set subclass. */
/* -------------------------------------------------------------------- */
CPLCreateXMLNode(
CPLCreateXMLNode( psTree, CXT_Attribute, "subClass" ),
CXT_Text, "VRTWarpedDataset" );
/* -------------------------------------------------------------------- */
/* Serialize the block size. */
/* -------------------------------------------------------------------- */
CPLCreateXMLElementAndValue( psTree, "BlockXSize",
CPLSPrintf( "%d", nBlockXSize ) );
CPLCreateXMLElementAndValue( psTree, "BlockYSize",
CPLSPrintf( "%d", nBlockYSize ) );
/* -------------------------------------------------------------------- */
/* Serialize the overview list. */
/* -------------------------------------------------------------------- */
if( nOverviewCount > 0 )
{
char *pszOverviewList;
int iOverview;
pszOverviewList = (char *) CPLMalloc(nOverviewCount*8 + 10);
pszOverviewList[0] = '\0';
for( iOverview = 0; iOverview < nOverviewCount; iOverview++ )
{
int nOvFactor;
nOvFactor = (int)
(0.5+GetRasterXSize()
/ (double) papoOverviews[iOverview]->GetRasterXSize());
sprintf( pszOverviewList + strlen(pszOverviewList),
"%d ", nOvFactor );
}
CPLCreateXMLElementAndValue( psTree, "OverviewList", pszOverviewList );
CPLFree( pszOverviewList );
}
/* ==================================================================== */
/* Serialize the warp options. */
/* ==================================================================== */
CPLXMLNode *psWOTree;
if( poWarper != NULL )
{
/* -------------------------------------------------------------------- */
/* We reset the destination dataset name so it doesn't get */
/* written out in the serialize warp options. */
/* -------------------------------------------------------------------- */
char *pszSavedName = CPLStrdup(GetDescription());
SetDescription("");
psWOTree = GDALSerializeWarpOptions( poWarper->GetOptions() );
CPLAddXMLChild( psTree, psWOTree );
SetDescription( pszSavedName );
CPLFree( pszSavedName );
/* -------------------------------------------------------------------- */
/* We need to consider making the source dataset relative to */
/* the VRT file if possible. Adjust accordingly. */
/* -------------------------------------------------------------------- */
CPLXMLNode *psSDS = CPLGetXMLNode( psWOTree, "SourceDataset" );
int bRelativeToVRT;
char *pszRelativePath;
pszRelativePath =
CPLStrdup(
CPLExtractRelativePath( pszVRTPath, psSDS->psChild->pszValue,
&bRelativeToVRT ) );
CPLFree( psSDS->psChild->pszValue );
psSDS->psChild->pszValue = pszRelativePath;
CPLCreateXMLNode(
CPLCreateXMLNode( psSDS, CXT_Attribute, "relativeToVRT" ),
CXT_Text, bRelativeToVRT ? "1" : "0" );
}
return psTree;
}
