static unsigned long HashAirwayIntersectionFeatureFunc(const void* _feature)
{
OGRFeature* feature = (OGRFeature*)_feature;
OGRPoint* point = (OGRPoint*) feature->GetGeometryRef();
unsigned long hash = CPLHashSetHashStr((unsigned char*)feature->GetFieldAsString(0));
const double x = point->getX();
const double y = point->getY();
return hash ^ OGRXPlaneAirwayHashDouble(x) ^ OGRXPlaneAirwayHashDouble(y);
}
GMLHandler::GMLHandler( GMLReader *poReader )
{
m_poReader = poReader;
m_bInCurField = FALSE;
m_nCurFieldAlloc = 0;
m_nCurFieldLen = 0;
m_pszCurField = NULL;
m_nAttributeIndex = -1;
m_nAttributeDepth = 0;
m_pszGeometry = NULL;
m_nGeomAlloc = 0;
m_nGeomLen = 0;
m_nGeometryDepth = 0;
m_nDepthFeature = m_nDepth = 0;
m_inBoundedByDepth = 0;
m_pszCityGMLGenericAttrName = NULL;
m_inCityGMLGenericAttrDepth = 0;
m_bIsCityGML = FALSE;
m_bIsAIXM = FALSE;
m_bReportHref = FALSE;
m_pszHref = NULL;
m_pszUom = NULL;
m_pszValue = NULL;
pasGeometryNames = (GeometryNamesStruct*)CPLMalloc(
GML_GEOMETRY_TYPE_COUNT * sizeof(GeometryNamesStruct));
for(int i=0; i<GML_GEOMETRY_TYPE_COUNT; i++)
{
pasGeometryNames[i].pszName = apszGMLGeometryElements[i];
pasGeometryNames[i].nHash =
CPLHashSetHashStr(pasGeometryNames[i].pszName);
}
qsort(pasGeometryNames, GML_GEOMETRY_TYPE_COUNT,
sizeof(GeometryNamesStruct),
GMLHandlerSortGeometryElements);
nStackDepth = 0;
stateStack[0] = STATE_TOP;
}
int GMLHandler::IsGeometryElement( const char *pszElement )
{
int nFirst = 0;
int nLast = GML_GEOMETRY_TYPE_COUNT- 1;
unsigned long nHash = CPLHashSetHashStr(pszElement);
do
{
int nMiddle = (nFirst + nLast) / 2;
if (nHash == pasGeometryNames[nMiddle].nHash)
return strcmp(pszElement, pasGeometryNames[nMiddle].pszName) == 0;
if (nHash < pasGeometryNames[nMiddle].nHash)
nLast = nMiddle - 1;
else
nFirst = nMiddle + 1;
} while(nFirst <= nLast);
if (m_bIsAIXM && strcmp( pszElement, "ElevatedPoint") == 0)
return TRUE;
return FALSE;
}
static
unsigned long hash_func_get_metadata_item(const void* _elt)
{
GetMetadataItemElt* elt = (GetMetadataItemElt*) _elt;
return CPLHashSetHashStr(elt->pszName) ^ CPLHashSetHashStr(elt->pszDomain);
}