OGRBoolean OGRCompoundCurvePointIterator::getNextPoint( OGRPoint* p )
{
if( iCurCurve == poCC->getNumCurves() )
return FALSE;
if( poCurveIter == NULL )
poCurveIter = poCC->getCurve(0)->getPointIterator();
if( !poCurveIter->getNextPoint(p) )
{
iCurCurve++;
if( iCurCurve == poCC->getNumCurves() )
return FALSE;
delete poCurveIter;
poCurveIter = poCC->getCurve(iCurCurve)->getPointIterator();
// Skip first point.
return poCurveIter->getNextPoint(p) &&
poCurveIter->getNextPoint(p);
}
return TRUE;
}
static int OGR2GML3GeometryAppend( const OGRGeometry *poGeometry,
const OGRSpatialReference* poParentSRS,
char **ppszText, int *pnLength,
int *pnMaxLength,
int bIsSubGeometry,
int bLongSRS,
int bLineStringAsCurve,
const char* pszGMLId,
int nSRSDimensionLocFlags,
int bForceLineStringAsLinearRing )
{
/* -------------------------------------------------------------------- */
/* Check for Spatial Reference System attached to given geometry */
/* -------------------------------------------------------------------- */
// Buffer for srsName, srsDimension and gml:id attributes (srsName="..." gml:id="...")
char szAttributes[256];
int nAttrsLength = 0;
szAttributes[0] = 0;
const OGRSpatialReference* poSRS = NULL;
if (poParentSRS)
poSRS = poParentSRS;
else
poParentSRS = poSRS = poGeometry->getSpatialReference();
int bCoordSwap = FALSE;
if( NULL != poSRS )
{
const char* pszAuthName = NULL;
const char* pszAuthCode = NULL;
const char* pszTarget = NULL;
if (poSRS->IsProjected())
pszTarget = "PROJCS";
else
pszTarget = "GEOGCS";
pszAuthName = poSRS->GetAuthorityName( pszTarget );
if( NULL != pszAuthName )
{
if( EQUAL( pszAuthName, "EPSG" ) )
{
pszAuthCode = poSRS->GetAuthorityCode( pszTarget );
if( NULL != pszAuthCode && strlen(pszAuthCode) < 10 )
{
if (bLongSRS && !(((OGRSpatialReference*)poSRS)->EPSGTreatsAsLatLong() ||
((OGRSpatialReference*)poSRS)->EPSGTreatsAsNorthingEasting()))
{
OGRSpatialReference oSRS;
if (oSRS.importFromEPSGA(atoi(pszAuthCode)) == OGRERR_NONE)
{
if (oSRS.EPSGTreatsAsLatLong() || oSRS.EPSGTreatsAsNorthingEasting())
bCoordSwap = TRUE;
}
}
if (!bIsSubGeometry)
{
if (bLongSRS)
{
snprintf( szAttributes, sizeof(szAttributes),
" srsName=\"urn:ogc:def:crs:%s::%s\"",
pszAuthName, pszAuthCode );
}
else
{
snprintf( szAttributes, sizeof(szAttributes),
" srsName=\"%s:%s\"",
pszAuthName, pszAuthCode );
}
nAttrsLength = strlen(szAttributes);
}
}
}
}
}
if( (nSRSDimensionLocFlags & SRSDIM_LOC_GEOMETRY) != 0 &&
wkbHasZ(poGeometry->getGeometryType()) )
{
strcat(szAttributes, " srsDimension=\"3\"");
nAttrsLength = strlen(szAttributes);
nSRSDimensionLocFlags &= ~SRSDIM_LOC_GEOMETRY;
}
if (pszGMLId != NULL && nAttrsLength + 9 + strlen(pszGMLId) + 1 < sizeof(szAttributes))
{
strcat(szAttributes, " gml:id=\"");
strcat(szAttributes, pszGMLId);
strcat(szAttributes, "\"");
nAttrsLength = strlen(szAttributes);
}
OGRwkbGeometryType eType = poGeometry->getGeometryType();
OGRwkbGeometryType eFType = wkbFlatten(eType);
/* -------------------------------------------------------------------- */
/* 2D Point */
/* -------------------------------------------------------------------- */
if( eType == wkbPoint )
{
char szCoordinate[256];
OGRPoint *poPoint = (OGRPoint *) poGeometry;
if (bCoordSwap)
OGRMakeWktCoordinate( szCoordinate,
poPoint->getY(), poPoint->getX(), 0.0, 2 );
else
OGRMakeWktCoordinate( szCoordinate,
poPoint->getX(), poPoint->getY(), 0.0, 2 );
_GrowBuffer( *pnLength + strlen(szCoordinate) + 60 + nAttrsLength,
ppszText, pnMaxLength );
sprintf( *ppszText + *pnLength,
"<gml:Point%s><gml:pos>%s</gml:pos></gml:Point>",
szAttributes, szCoordinate );
*pnLength += strlen( *ppszText + *pnLength );
}
/* -------------------------------------------------------------------- */
/* 3D Point */
/* -------------------------------------------------------------------- */
else if( eType == wkbPoint25D )
{
char szCoordinate[256];
OGRPoint *poPoint = (OGRPoint *) poGeometry;
if (bCoordSwap)
OGRMakeWktCoordinate( szCoordinate,
poPoint->getY(), poPoint->getX(), poPoint->getZ(), 3 );
else
OGRMakeWktCoordinate( szCoordinate,
poPoint->getX(), poPoint->getY(), poPoint->getZ(), 3 );
_GrowBuffer( *pnLength + strlen(szCoordinate) + 70 + nAttrsLength,
ppszText, pnMaxLength );
sprintf( *ppszText + *pnLength,
"<gml:Point%s><gml:pos>%s</gml:pos></gml:Point>",
szAttributes, szCoordinate );
*pnLength += strlen( *ppszText + *pnLength );
}
/* -------------------------------------------------------------------- */
/* LineString and LinearRing */
/* -------------------------------------------------------------------- */
else if( eFType == wkbLineString )
{
int bRing = EQUAL(poGeometry->getGeometryName(),"LINEARRING") ||
bForceLineStringAsLinearRing;
if (!bRing && bLineStringAsCurve)
{
AppendString( ppszText, pnLength, pnMaxLength,
"<gml:Curve" );
AppendString( ppszText, pnLength, pnMaxLength,
szAttributes );
AppendString( ppszText, pnLength, pnMaxLength,
"><gml:segments><gml:LineStringSegment>" );
AppendGML3CoordinateList( (OGRLineString *) poGeometry, bCoordSwap,
ppszText, pnLength, pnMaxLength, nSRSDimensionLocFlags );
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:LineStringSegment></gml:segments></gml:Curve>" );
}
else
{
// Buffer for tag name + srsName attribute if set
const size_t nLineTagLength = 16;
char* pszLineTagName = NULL;
pszLineTagName = (char *) CPLMalloc( nLineTagLength + nAttrsLength + 1 );
if( bRing )
{
/* LinearRing isn't supposed to have srsName attribute according to GML3 SF-0 */
AppendString( ppszText, pnLength, pnMaxLength,
"<gml:LinearRing>" );
}
else
{
sprintf( pszLineTagName, "<gml:LineString%s>", szAttributes );
AppendString( ppszText, pnLength, pnMaxLength,
pszLineTagName );
}
// FREE TAG BUFFER
CPLFree( pszLineTagName );
AppendGML3CoordinateList( (OGRLineString *) poGeometry, bCoordSwap,
ppszText, pnLength, pnMaxLength, nSRSDimensionLocFlags );
if( bRing )
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:LinearRing>" );
else
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:LineString>" );
}
}
/* -------------------------------------------------------------------- */
/* ArcString or Circle */
/* -------------------------------------------------------------------- */
else if( eFType == wkbCircularString )
{
AppendString( ppszText, pnLength, pnMaxLength,
"<gml:Curve" );
AppendString( ppszText, pnLength, pnMaxLength,
szAttributes );
OGRSimpleCurve* poSC = (OGRSimpleCurve *) poGeometry;
/* SQL MM has a unique type for arc and circle, GML not */
if( poSC->getNumPoints() == 3 &&
poSC->getX(0) == poSC->getX(2) &&
poSC->getY(0) == poSC->getY(2) )
{
double dfMidX = (poSC->getX(0) + poSC->getX(1)) / 2;
double dfMidY = (poSC->getY(0) + poSC->getY(1)) / 2;
double dfDirX = (poSC->getX(1) - poSC->getX(0)) / 2;
double dfDirY = (poSC->getY(1) - poSC->getY(0)) / 2;
double dfNormX = -dfDirY;
double dfNormY = dfDirX;
double dfNewX = dfMidX + dfNormX;
double dfNewY = dfMidY + dfNormY;
OGRLineString* poLS = new OGRLineString();
OGRPoint p;
poSC->getPoint(0, &p);
poLS->addPoint(&p);
poSC->getPoint(1, &p);
if( poSC->getCoordinateDimension() == 3 )
poLS->addPoint(dfNewX, dfNewY, p.getZ());
else
poLS->addPoint(dfNewX, dfNewY);
poLS->addPoint(&p);
AppendString( ppszText, pnLength, pnMaxLength,
"><gml:segments><gml:Circle>" );
AppendGML3CoordinateList( poLS, bCoordSwap,
ppszText, pnLength, pnMaxLength, nSRSDimensionLocFlags );
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:Circle></gml:segments></gml:Curve>" );
delete poLS;
}
else
{
AppendString( ppszText, pnLength, pnMaxLength,
"><gml:segments><gml:ArcString>" );
AppendGML3CoordinateList( poSC, bCoordSwap,
ppszText, pnLength, pnMaxLength, nSRSDimensionLocFlags );
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:ArcString></gml:segments></gml:Curve>" );
}
}
/* -------------------------------------------------------------------- */
/* CompositeCurve */
/* -------------------------------------------------------------------- */
else if( eFType == wkbCompoundCurve )
{
AppendString( ppszText, pnLength, pnMaxLength,
"<gml:CompositeCurve" );
AppendString( ppszText, pnLength, pnMaxLength,
szAttributes );
AppendString( ppszText, pnLength, pnMaxLength,">");
OGRCompoundCurve* poCC = (OGRCompoundCurve*)poGeometry;
for(int i=0;i<poCC->getNumCurves();i++)
{
AppendString( ppszText, pnLength, pnMaxLength,
"<gml:curveMember>" );
if( !OGR2GML3GeometryAppend( poCC->getCurve(i), poSRS, ppszText, pnLength,
pnMaxLength, TRUE, bLongSRS,
bLineStringAsCurve,
NULL, nSRSDimensionLocFlags, FALSE) )
return FALSE;
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:curveMember>" );
}
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:CompositeCurve>" );
}
/* -------------------------------------------------------------------- */
/* Polygon */
/* -------------------------------------------------------------------- */
else if( eFType == wkbPolygon || eFType == wkbCurvePolygon )
{
OGRCurvePolygon *poCP = (OGRCurvePolygon *) poGeometry;
// Buffer for polygon tag name + srsName attribute if set
const size_t nPolyTagLength = 13;
char* pszPolyTagName = NULL;
pszPolyTagName = (char *) CPLMalloc( nPolyTagLength + nAttrsLength + 1 );
// Compose Polygon tag with or without srsName attribute
sprintf( pszPolyTagName, "<gml:Polygon%s>", szAttributes );
AppendString( ppszText, pnLength, pnMaxLength,
pszPolyTagName );
// FREE TAG BUFFER
CPLFree( pszPolyTagName );
// Don't add srsName to polygon rings
if( poCP->getExteriorRingCurve() != NULL )
{
AppendString( ppszText, pnLength, pnMaxLength,
"<gml:exterior>" );
if( !OGR2GML3GeometryAppend( poCP->getExteriorRingCurve(), poSRS,
ppszText, pnLength, pnMaxLength,
TRUE, bLongSRS, bLineStringAsCurve,
NULL, nSRSDimensionLocFlags, TRUE) )
{
return FALSE;
}
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:exterior>" );
}
for( int iRing = 0; iRing < poCP->getNumInteriorRings(); iRing++ )
{
OGRCurve *poRing = poCP->getInteriorRingCurve(iRing);
AppendString( ppszText, pnLength, pnMaxLength,
"<gml:interior>" );
if( !OGR2GML3GeometryAppend( poRing, poSRS, ppszText, pnLength,
pnMaxLength, TRUE, bLongSRS,
bLineStringAsCurve,
NULL, nSRSDimensionLocFlags, TRUE) )
return FALSE;
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:interior>" );
}
AppendString( ppszText, pnLength, pnMaxLength,
"</gml:Polygon>" );
}
/* -------------------------------------------------------------------- */
/* MultiSurface, MultiCurve, MultiPoint, MultiGeometry */
/* -------------------------------------------------------------------- */
else if( eFType == wkbMultiPolygon
|| eFType == wkbMultiSurface
|| eFType == wkbMultiLineString
|| eFType == wkbMultiCurve
|| eFType == wkbMultiPoint
|| eFType == wkbGeometryCollection )
{
OGRGeometryCollection *poGC = (OGRGeometryCollection *) poGeometry;
int iMember;
const char *pszElemClose = NULL;
const char *pszMemberElem = NULL;
// Buffer for opening tag + srsName attribute
char* pszElemOpen = NULL;
if( eFType == wkbMultiPolygon || eFType == wkbMultiSurface )
{
pszElemOpen = (char *) CPLMalloc( 13 + nAttrsLength + 1 );
sprintf( pszElemOpen, "MultiSurface%s>", szAttributes );
pszElemClose = "MultiSurface>";
pszMemberElem = "surfaceMember>";
}
else if( eFType == wkbMultiLineString || eFType == wkbMultiCurve )
{
pszElemOpen = (char *) CPLMalloc( 16 + nAttrsLength + 1 );
sprintf( pszElemOpen, "MultiCurve%s>", szAttributes );
pszElemClose = "MultiCurve>";
pszMemberElem = "curveMember>";
}
else if( eFType == wkbMultiPoint )
{
pszElemOpen = (char *) CPLMalloc( 11 + nAttrsLength + 1 );
sprintf( pszElemOpen, "MultiPoint%s>", szAttributes );
pszElemClose = "MultiPoint>";
pszMemberElem = "pointMember>";
}
else
{
pszElemOpen = (char *) CPLMalloc( 19 + nAttrsLength + 1 );
sprintf( pszElemOpen, "MultiGeometry%s>", szAttributes );
pszElemClose = "MultiGeometry>";
pszMemberElem = "geometryMember>";
}
AppendString( ppszText, pnLength, pnMaxLength, "<gml:" );
AppendString( ppszText, pnLength, pnMaxLength, pszElemOpen );
for( iMember = 0; iMember < poGC->getNumGeometries(); iMember++)
{
OGRGeometry *poMember = poGC->getGeometryRef( iMember );
AppendString( ppszText, pnLength, pnMaxLength, "<gml:" );
AppendString( ppszText, pnLength, pnMaxLength, pszMemberElem );
char* pszGMLIdSub = NULL;
if (pszGMLId != NULL)
pszGMLIdSub = CPLStrdup(CPLSPrintf("%s.%d", pszGMLId, iMember));
if( !OGR2GML3GeometryAppend( poMember, poSRS,
ppszText, pnLength, pnMaxLength,
TRUE, bLongSRS, bLineStringAsCurve,
pszGMLIdSub, nSRSDimensionLocFlags, FALSE ) )
{
CPLFree(pszGMLIdSub);
return FALSE;
}
CPLFree(pszGMLIdSub);
AppendString( ppszText, pnLength, pnMaxLength, "</gml:" );
AppendString( ppszText, pnLength, pnMaxLength, pszMemberElem );
}
AppendString( ppszText, pnLength, pnMaxLength, "</gml:" );
AppendString( ppszText, pnLength, pnMaxLength, pszElemClose );
// FREE TAG BUFFER
CPLFree( pszElemOpen );
}
else
{
CPLError(CE_Failure, CPLE_NotSupported, "Unsupported geometry type %s",
OGRGeometryTypeToName(eType));
return FALSE;
}
return TRUE;
}
void OGRILI1Layer::JoinSurfaceLayer( OGRILI1Layer* poSurfaceLineLayer,
int nSurfaceFieldIndex )
{
CPLDebug( "OGR_ILI", "Joining surface layer %s with geometries",
GetLayerDefn()->GetName());
OGRwkbGeometryType geomType
= GetLayerDefn()->GetGeomFieldDefn(nSurfaceFieldIndex)->GetType();
std::map<OGRFeature*, std::vector<OGRCurve*> > oMapFeatureToGeomSet;
poSurfaceLineLayer->ResetReading();
// First map: for each target curvepolygon, find all belonging curves
while (OGRFeature *linefeature = poSurfaceLineLayer->GetNextFeatureRef()) {
//OBJE entries with same _RefTID are polygon rings of same feature
OGRFeature *feature = nullptr;
if (poFeatureDefn->GetFieldDefn(0)->GetType() == OFTString)
{
feature = GetFeatureRef(linefeature->GetFieldAsString(1));
}
else
{
GIntBig reftid = linefeature->GetFieldAsInteger64(1);
feature = GetFeatureRef(reftid);
}
if (feature)
{
OGRGeometry* poGeom = linefeature->GetGeomFieldRef(0);
OGRMultiCurve *curves = dynamic_cast<OGRMultiCurve *>(poGeom);
if( curves )
{
for (auto&& curve: curves )
{
if( !curve->IsEmpty() )
oMapFeatureToGeomSet[feature].push_back(curve);
}
}
}
else
{
CPLError( CE_Warning, CPLE_AppDefined,
"Couldn't join feature FID " CPL_FRMT_GIB,
linefeature->GetFieldAsInteger64(1) );
}
}
// Now for each target polygon, assemble the curves together.
std::map<OGRFeature*, std::vector<OGRCurve*> >::const_iterator oIter =
oMapFeatureToGeomSet.begin();
for( ; oIter != oMapFeatureToGeomSet.end(); ++oIter )
{
OGRFeature* feature = oIter->first;
std::vector<OGRCurve*> oCurves = oIter->second;
std::vector<OGRCurve*> oSetDestCurves;
double dfLargestArea = 0.0;
OGRCurve* poLargestCurve = nullptr;
while( true )
{
std::vector<OGRCurve*>::iterator oIterCurves = oCurves.begin();
if( oIterCurves == oCurves.end() )
break;
OGRPoint endPointCC;
OGRCompoundCurve* poCC = new OGRCompoundCurve();
bool bFirst = true;
while( true )
{
bool bNewCurveAdded = false;
const double dfEps = 1e-14;
for(oIterCurves = oCurves.begin();
oIterCurves != oCurves.end(); ++oIterCurves )
{
OGRCurve* curve = *oIterCurves;
OGRPoint startPoint;
OGRPoint endPoint;
curve->StartPoint(&startPoint);
curve->EndPoint(&endPoint);
if( bFirst ||
(fabs(startPoint.getX() - endPointCC.getX()) < dfEps &&
fabs(startPoint.getY() - endPointCC.getY()) < dfEps) )
{
bFirst = false;
curve->EndPoint(&endPointCC);
const OGRwkbGeometryType eCurveType =
wkbFlatten(curve->getGeometryType());
if( eCurveType == wkbCompoundCurve )
{
OGRCompoundCurve* poCCSub = curve->toCompoundCurve();
for( auto&& subCurve: poCCSub )
{
poCC->addCurve(subCurve);
}
}
else
{
poCC->addCurve( curve );
}
oCurves.erase( oIterCurves );
bNewCurveAdded = true;
break;
}
else
if( fabs(endPoint.getX() - endPointCC.getX()) < dfEps &&
fabs(endPoint.getY() - endPointCC.getY()) < dfEps )
{
curve->StartPoint(&endPointCC);
const OGRwkbGeometryType eCurveType =
wkbFlatten(curve->getGeometryType());
if( eCurveType == wkbLineString ||
eCurveType == wkbCircularString )
{
OGRSimpleCurve* poSC = curve->clone()->toSimpleCurve();
poSC->reversePoints();
poCC->addCurveDirectly( poSC );
}
else if( eCurveType == wkbCompoundCurve )
{
// Reverse the order of the elements of the
// compound curve
OGRCompoundCurve* poCCSub = curve->toCompoundCurve();
for( int i=poCCSub->getNumCurves()-1; i >= 0; --i )
{
OGRSimpleCurve* poSC = poCCSub->getCurve(i)->
clone()->toSimpleCurve();
poSC->reversePoints();
poCC->addCurveDirectly(poSC);
}
}
oCurves.erase( oIterCurves );
bNewCurveAdded = true;
break;
}
}
if( !bNewCurveAdded || oCurves.empty() || poCC->get_IsClosed() )
break;
}
if( !poCC->get_IsClosed() )
{
char* pszJSon = poCC->exportToJson();
CPLError(CE_Warning, CPLE_AppDefined,
"A ring %s for feature " CPL_FRMT_GIB " in layer %s "
"was not closed. Dropping it",
pszJSon, feature->GetFID(), GetName());
delete poCC;
CPLFree(pszJSon);
}
else
{
double dfArea = poCC->get_Area();
if( dfArea >= dfLargestArea )
{
dfLargestArea = dfArea;
poLargestCurve = poCC;
}
oSetDestCurves.push_back(poCC);
}
}
// Now build the final polygon by first inserting the largest ring.
OGRCurvePolygon *poPoly = (geomType == wkbPolygon) ?
new OGRPolygon() : new OGRCurvePolygon();
if( poLargestCurve )
{
std::vector<OGRCurve*>::iterator oIterCurves =
oSetDestCurves.begin();
for( ; oIterCurves != oSetDestCurves.end(); ++oIterCurves )
{
OGRCurve* poCurve = *oIterCurves;
if( poCurve == poLargestCurve )
{
oSetDestCurves.erase( oIterCurves );
break;
}
}
if (geomType == wkbPolygon)
{
poLargestCurve = OGRCurve::CastToLinearRing(poLargestCurve);
}
OGRErr error = poPoly->addRingDirectly(poLargestCurve);
if (error != OGRERR_NONE)
{
char* pszJSon = poLargestCurve->exportToJson();
CPLError(CE_Warning, CPLE_AppDefined,
"Cannot add ring %s to feature " CPL_FRMT_GIB
" in layer %s",
pszJSon, feature->GetFID(), GetName() );
CPLFree(pszJSon);
}
oIterCurves = oSetDestCurves.begin();
for( ; oIterCurves != oSetDestCurves.end(); ++oIterCurves )
{
OGRCurve* poCurve = *oIterCurves;
if (geomType == wkbPolygon)
{
poCurve = OGRCurve::CastToLinearRing(poCurve);
}
error = poPoly->addRingDirectly(poCurve);
if (error != OGRERR_NONE)
{
char* pszJSon = poCurve->exportToJson();
CPLError(CE_Warning, CPLE_AppDefined,
"Cannot add ring %s to feature " CPL_FRMT_GIB
" in layer %s",
pszJSon, feature->GetFID(), GetName() );
CPLFree(pszJSon);
}
}
}
feature->SetGeomFieldDirectly(nSurfaceFieldIndex, poPoly);
}
ResetReading();
}