CPLXMLNode *OGR_G_ExportToKMLTree( OGRGeometryH hGeometry )
{
// TODO - mloskot: If passed geometry is null the pszText is non-null,
// so the condition below is false.
char *pszText = OGR_G_ExportToKML( hGeometry, NULL );
if( pszText == NULL )
return NULL;
CPLXMLNode *psTree = CPLParseXMLString( pszText );
CPLFree( pszText );
return psTree;
}
OGRErr OGRKMLLayer::ICreateFeature( OGRFeature* poFeature )
{
CPLAssert( NULL != poFeature );
CPLAssert( NULL != poDS_ );
if( !bWriter_ )
return OGRERR_FAILURE;
if( bClosedForWriting )
{
CPLError(CE_Failure, CPLE_NotSupported,
"Interleaved feature adding to different layers is not supported");
return OGRERR_FAILURE;
}
VSILFILE *fp = poDS_->GetOutputFP();
CPLAssert( NULL != fp );
if( poDS_->GetLayerCount() == 1 && nWroteFeatureCount_ == 0 )
{
CPLString osRet = WriteSchema();
if( osRet.size() )
VSIFPrintfL( fp, "%s", osRet.c_str() );
bSchemaWritten_ = TRUE;
VSIFPrintfL( fp, "<Folder><name>%s</name>\n", pszName_);
}
VSIFPrintfL( fp, " <Placemark>\n" );
if( poFeature->GetFID() == OGRNullFID )
poFeature->SetFID( iNextKMLId_++ );
// Find and write the name element
if (NULL != poDS_->GetNameField())
{
for( int iField = 0; iField < poFeatureDefn_->GetFieldCount(); iField++ )
{
OGRFieldDefn *poField = poFeatureDefn_->GetFieldDefn( iField );
if( poFeature->IsFieldSet( iField )
&& EQUAL(poField->GetNameRef(), poDS_->GetNameField()) )
{
const char *pszRaw = poFeature->GetFieldAsString( iField );
while( *pszRaw == ' ' )
pszRaw++;
char *pszEscaped = OGRGetXML_UTF8_EscapedString( pszRaw );
VSIFPrintfL( fp, "\t<name>%s</name>\n", pszEscaped);
CPLFree( pszEscaped );
}
}
}
if (NULL != poDS_->GetDescriptionField())
{
for( int iField = 0; iField < poFeatureDefn_->GetFieldCount(); iField++ )
{
OGRFieldDefn *poField = poFeatureDefn_->GetFieldDefn( iField );
if( poFeature->IsFieldSet( iField )
&& EQUAL(poField->GetNameRef(), poDS_->GetDescriptionField()) )
{
const char *pszRaw = poFeature->GetFieldAsString( iField );
while( *pszRaw == ' ' )
pszRaw++;
char *pszEscaped = OGRGetXML_UTF8_EscapedString( pszRaw );
VSIFPrintfL( fp, "\t<description>%s</description>\n", pszEscaped);
CPLFree( pszEscaped );
}
}
}
OGRwkbGeometryType eGeomType = wkbNone;
if (poFeature->GetGeometryRef() != NULL)
eGeomType = wkbFlatten(poFeature->GetGeometryRef()->getGeometryType());
if ( wkbPolygon == eGeomType
|| wkbMultiPolygon == eGeomType
|| wkbLineString == eGeomType
|| wkbMultiLineString == eGeomType )
{
OGRStylePen *poPen = NULL;
OGRStyleMgr oSM;
if( poFeature->GetStyleString() != NULL )
{
oSM.InitFromFeature( poFeature );
int i;
for(i=0; i<oSM.GetPartCount();i++)
{
OGRStyleTool *poTool = oSM.GetPart(i);
if (poTool && poTool->GetType() == OGRSTCPen )
{
poPen = (OGRStylePen*) poTool;
break;
}
delete poTool;
}
}
VSIFPrintfL( fp, "\t<Style>");
if( poPen != NULL )
{
GBool bDefault;
int bHasWidth = FALSE;
/* Require width to be returned in pixel */
poPen->SetUnit(OGRSTUPixel);
double fW = poPen->Width(bDefault);
if( bDefault )
fW = 1;
else
bHasWidth = TRUE;
const char* pszColor = poPen->Color(bDefault);
int nColorLen = static_cast<int>(CPLStrnlen(pszColor, 10));
if( pszColor != NULL && pszColor[0] == '#' && !bDefault && nColorLen >= 7)
{
char acColor[9] = {0};
/* Order of KML color is aabbggrr, whereas OGR color is #rrggbb[aa] ! */
if(nColorLen == 9)
{
acColor[0] = pszColor[7]; /* A */
acColor[1] = pszColor[8];
}
else
{
acColor[0] = 'F';
acColor[1] = 'F';
}
acColor[2] = pszColor[5]; /* B */
acColor[3] = pszColor[6];
acColor[4] = pszColor[3]; /* G */
acColor[5] = pszColor[4];
acColor[6] = pszColor[1]; /* R */
acColor[7] = pszColor[2];
VSIFPrintfL( fp, "<LineStyle><color>%s</color>", acColor);
if (bHasWidth)
VSIFPrintfL( fp, "<width>%g</width>", fW);
VSIFPrintfL( fp, "</LineStyle>");
}
else
VSIFPrintfL( fp, "<LineStyle><color>ff0000ff</color></LineStyle>");
}
else
VSIFPrintfL( fp, "<LineStyle><color>ff0000ff</color></LineStyle>");
delete poPen;
//If we're dealing with a polygon, add a line style that will stand out a bit
VSIFPrintfL( fp, "<PolyStyle><fill>0</fill></PolyStyle></Style>\n" );
}
int bHasFoundOtherField = FALSE;
// Write all fields as SchemaData
for( int iField = 0; iField < poFeatureDefn_->GetFieldCount(); iField++ )
{
OGRFieldDefn *poField = poFeatureDefn_->GetFieldDefn( iField );
if( poFeature->IsFieldSet( iField ))
{
if (NULL != poDS_->GetNameField() &&
EQUAL(poField->GetNameRef(), poDS_->GetNameField()) )
continue;
if (NULL != poDS_->GetDescriptionField() &&
EQUAL(poField->GetNameRef(), poDS_->GetDescriptionField()) )
continue;
if (!bHasFoundOtherField)
{
VSIFPrintfL( fp, "\t<ExtendedData><SchemaData schemaUrl=\"#%s\">\n", pszName_ );
bHasFoundOtherField = TRUE;
}
const char *pszRaw = poFeature->GetFieldAsString( iField );
while( *pszRaw == ' ' )
pszRaw++;
char *pszEscaped;
if (poFeatureDefn_->GetFieldDefn(iField)->GetType() == OFTReal)
{
pszEscaped = CPLStrdup( pszRaw );
}
else
{
pszEscaped = OGRGetXML_UTF8_EscapedString( pszRaw );
}
VSIFPrintfL( fp, "\t\t<SimpleData name=\"%s\">%s</SimpleData>\n",
poField->GetNameRef(), pszEscaped);
CPLFree( pszEscaped );
}
}
if (bHasFoundOtherField)
{
VSIFPrintfL( fp, "\t</SchemaData></ExtendedData>\n" );
}
// Write out Geometry - for now it isn't indented properly.
if( poFeature->GetGeometryRef() != NULL )
{
char* pszGeometry = NULL;
OGREnvelope sGeomBounds;
OGRGeometry* poWGS84Geom;
if (NULL != poCT_)
{
poWGS84Geom = poFeature->GetGeometryRef()->clone();
poWGS84Geom->transform( poCT_ );
}
else
{
poWGS84Geom = poFeature->GetGeometryRef();
}
// TODO - porting
// pszGeometry = poFeature->GetGeometryRef()->exportToKML();
pszGeometry =
OGR_G_ExportToKML( (OGRGeometryH)poWGS84Geom,
poDS_->GetAltitudeMode());
VSIFPrintfL( fp, " %s\n", pszGeometry );
CPLFree( pszGeometry );
poWGS84Geom->getEnvelope( &sGeomBounds );
poDS_->GrowExtents( &sGeomBounds );
if (NULL != poCT_)
{
delete poWGS84Geom;
}
}
VSIFPrintfL( fp, " </Placemark>\n" );
nWroteFeatureCount_++;
return OGRERR_NONE;
}
