std::string SpatialReference::getVerticalUnits() const
{
std::string tmp("");
std::string wkt = getWKT(eCompoundOK);
const char* poWKT = wkt.c_str();
OGRSpatialReference* poSRS =
(OGRSpatialReference*)OSRNewSpatialReference(m_wkt.c_str());
if (poSRS)
{
OGR_SRSNode* node = poSRS->GetAttrNode("VERT_CS");
if (node)
{
char* units(0);
double u = poSRS->GetLinearUnits(&units);
tmp = units;
CPLFree(units);
Utils::trim(tmp);
}
}
return tmp;
}
std::string CSpatialReference::GetProjName() const
{
if(!m_Handle)
{
return "";
}
OGRSpatialReference* psr = (OGRSpatialReference*)m_Handle;
//查找GEOGCS节点
OGR_SRSNode *pNode =psr->GetAttrNode("PROJCS");
if(!pNode)
{
return "";
}
return pNode->GetChild(0)->GetValue();
}
std::string SpatialReference::getVertical() const
{
std::string tmp("");
OGRSpatialReference* poSRS =
(OGRSpatialReference*)OSRNewSpatialReference(m_wkt.c_str());
char *pszWKT = NULL;
OGR_SRSNode* node = poSRS->GetAttrNode("VERT_CS");
if (node && poSRS)
{
node->exportToWkt(&pszWKT);
tmp = pszWKT;
CPLFree(pszWKT);
OSRDestroySpatialReference(poSRS);
}
return tmp;
}
int OGRProj4CT::InitializeNoLock( OGRSpatialReference * poSourceIn,
OGRSpatialReference * poTargetIn )
{
if( poSourceIn == NULL || poTargetIn == NULL )
return FALSE;
poSRSSource = poSourceIn->Clone();
poSRSTarget = poTargetIn->Clone();
bSourceLatLong = poSRSSource->IsGeographic();
bTargetLatLong = poSRSTarget->IsGeographic();
/* -------------------------------------------------------------------- */
/* Setup source and target translations to radians for lat/long */
/* systems. */
/* -------------------------------------------------------------------- */
dfSourceToRadians = DEG_TO_RAD;
bSourceWrap = FALSE;
dfSourceWrapLong = 0.0;
if( bSourceLatLong )
{
OGR_SRSNode *poUNITS = poSRSSource->GetAttrNode( "GEOGCS|UNIT" );
if( poUNITS && poUNITS->GetChildCount() >= 2 )
{
dfSourceToRadians = atof(poUNITS->GetChild(1)->GetValue());
if( dfSourceToRadians == 0.0 )
dfSourceToRadians = DEG_TO_RAD;
}
}
dfTargetFromRadians = RAD_TO_DEG;
bTargetWrap = FALSE;
dfTargetWrapLong = 0.0;
if( bTargetLatLong )
{
OGR_SRSNode *poUNITS = poSRSTarget->GetAttrNode( "GEOGCS|UNIT" );
if( poUNITS && poUNITS->GetChildCount() >= 2 )
{
double dfTargetToRadians = atof(poUNITS->GetChild(1)->GetValue());
if( dfTargetToRadians != 0.0 )
dfTargetFromRadians = 1 / dfTargetToRadians;
}
}
/* -------------------------------------------------------------------- */
/* Preliminary logic to setup wrapping. */
/* -------------------------------------------------------------------- */
const char *pszCENTER_LONG;
if( CPLGetConfigOption( "CENTER_LONG", NULL ) != NULL )
{
bSourceWrap = bTargetWrap = TRUE;
dfSourceWrapLong = dfTargetWrapLong =
atof(CPLGetConfigOption( "CENTER_LONG", "" ));
CPLDebug( "OGRCT", "Wrap at %g.", dfSourceWrapLong );
}
pszCENTER_LONG = poSRSSource->GetExtension( "GEOGCS", "CENTER_LONG" );
if( pszCENTER_LONG != NULL )
{
dfSourceWrapLong = atof(pszCENTER_LONG);
bSourceWrap = TRUE;
CPLDebug( "OGRCT", "Wrap source at %g.", dfSourceWrapLong );
}
pszCENTER_LONG = poSRSTarget->GetExtension( "GEOGCS", "CENTER_LONG" );
if( pszCENTER_LONG != NULL )
{
dfTargetWrapLong = atof(pszCENTER_LONG);
bTargetWrap = TRUE;
CPLDebug( "OGRCT", "Wrap target at %g.", dfTargetWrapLong );
}
bCheckWithInvertProj = CSLTestBoolean(CPLGetConfigOption( "CHECK_WITH_INVERT_PROJ", "NO" ));
/* The threshold is rather experimental... Works well with the cases of ticket #2305 */
if (bSourceLatLong)
dfThreshold = atof(CPLGetConfigOption( "THRESHOLD", ".1" ));
else
/* 1 works well for most projections, except for +proj=aeqd that requires */
/* a tolerance of 10000 */
dfThreshold = atof(CPLGetConfigOption( "THRESHOLD", "10000" ));
/* -------------------------------------------------------------------- */
/* Establish PROJ.4 handle for source if projection. */
/* -------------------------------------------------------------------- */
// OGRThreadSafety: The following variable is not a thread safety issue
// since the only issue is incrementing while accessing which at worse
// means debug output could be one "increment" late.
static int nDebugReportCount = 0;
char *pszSrcProj4Defn = NULL;
if( poSRSSource->exportToProj4( &pszSrcProj4Defn ) != OGRERR_NONE )
{
CPLFree( pszSrcProj4Defn );
return FALSE;
}
if( strlen(pszSrcProj4Defn) == 0 )
{
CPLFree( pszSrcProj4Defn );
CPLError( CE_Failure, CPLE_AppDefined,
"No PROJ.4 translation for source SRS, coordinate\n"
"transformation initialization has failed." );
return FALSE;
}
if (pjctx)
psPJSource = pfn_pj_init_plus_ctx( pjctx, pszSrcProj4Defn );
else
psPJSource = pfn_pj_init_plus( pszSrcProj4Defn );
if( psPJSource == NULL )
{
if( pjctx != NULL)
{
int pj_errno = pfn_pj_ctx_get_errno(pjctx);
/* pfn_pj_strerrno not yet thread-safe in PROJ 4.8.0 */
CPLMutexHolderD(&hPROJMutex);
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.\n%s",
pszSrcProj4Defn, pfn_pj_strerrno(pj_errno) );
}
else if( pfn_pj_get_errno_ref != NULL
&& pfn_pj_strerrno != NULL )
{
int *p_pj_errno = pfn_pj_get_errno_ref();
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.\n%s",
pszSrcProj4Defn, pfn_pj_strerrno(*p_pj_errno) );
}
else
{
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.\n",
pszSrcProj4Defn );
}
}
if( nDebugReportCount < 10 )
CPLDebug( "OGRCT", "Source: %s", pszSrcProj4Defn );
if( psPJSource == NULL )
{
CPLFree( pszSrcProj4Defn );
return FALSE;
}
/* -------------------------------------------------------------------- */
/* Establish PROJ.4 handle for target if projection. */
/* -------------------------------------------------------------------- */
char *pszDstProj4Defn = NULL;
if( poSRSTarget->exportToProj4( &pszDstProj4Defn ) != OGRERR_NONE )
{
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
return FALSE;
}
if( strlen(pszDstProj4Defn) == 0 )
{
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
CPLError( CE_Failure, CPLE_AppDefined,
"No PROJ.4 translation for destination SRS, coordinate\n"
"transformation initialization has failed." );
return FALSE;
}
if (pjctx)
psPJTarget = pfn_pj_init_plus_ctx( pjctx, pszDstProj4Defn );
else
psPJTarget = pfn_pj_init_plus( pszDstProj4Defn );
if( psPJTarget == NULL )
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.",
pszDstProj4Defn );
if( nDebugReportCount < 10 )
{
CPLDebug( "OGRCT", "Target: %s", pszDstProj4Defn );
nDebugReportCount++;
}
if( psPJTarget == NULL )
{
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
return FALSE;
}
/* Determine if we really have a transformation to do */
bIdentityTransform = (strcmp(pszSrcProj4Defn, pszDstProj4Defn) == 0);
/* In case of identity transform, under the following conditions, */
/* we can also avoid transforming from deegrees <--> radians. */
if( bIdentityTransform && bSourceLatLong && !bSourceWrap &&
bTargetLatLong && !bTargetWrap &&
abs(dfSourceToRadians * dfTargetFromRadians - 1.0) < 1e-10 )
{
/*bSourceLatLong = FALSE;
bTargetLatLong = FALSE;*/
}
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
return TRUE;
}
static int WFS_ExprDumpAsOGCFilter(CPLString& osFilter,
const swq_expr_node* poExpr,
int bExpectBinary,
ExprDumpFilterOptions* psOptions)
{
if( poExpr->eNodeType == SNT_COLUMN )
{
if (bExpectBinary)
return FALSE;
/* Special fields not understood by server */
if (EQUAL(poExpr->string_value, "gml_id") ||
EQUAL(poExpr->string_value, "FID") ||
EQUAL(poExpr->string_value, "OGR_GEOMETRY") ||
EQUAL(poExpr->string_value, "OGR_GEOM_WKT") ||
EQUAL(poExpr->string_value, "OGR_GEOM_AREA") ||
EQUAL(poExpr->string_value, "OGR_STYLE"))
{
CPLDebug("WFS", "Attribute refers to a OGR special field. Cannot use server-side filtering");
return FALSE;
}
const char* pszFieldname = NULL;
int nIndex;
int bSameTable = psOptions->poFDefn != NULL &&
( poExpr->table_name == NULL ||
EQUAL(poExpr->table_name, psOptions->poFDefn->GetName()) );
if( bSameTable )
{
if( (nIndex = psOptions->poFDefn->GetFieldIndex(poExpr->string_value)) >= 0 )
{
pszFieldname = psOptions->poFDefn->GetFieldDefn(nIndex)->GetNameRef();
}
else if( (nIndex = psOptions->poFDefn->GetGeomFieldIndex(poExpr->string_value)) >= 0 )
{
pszFieldname = psOptions->poFDefn->GetGeomFieldDefn(nIndex)->GetNameRef();
}
}
else if( psOptions->poDS != NULL )
{
OGRLayer* poLayer = psOptions->poDS->GetLayerByName(poExpr->table_name);
if( poLayer )
{
OGRFeatureDefn* poFDefn = poLayer->GetLayerDefn();
if( (nIndex = poFDefn->GetFieldIndex(poExpr->string_value)) >= 0 )
{
pszFieldname = CPLSPrintf("%s/%s",
poLayer->GetName(),
poFDefn->GetFieldDefn(nIndex)->GetNameRef());
}
else if( (nIndex = poFDefn->GetGeomFieldIndex(poExpr->string_value)) >= 0 )
{
pszFieldname = CPLSPrintf("%s/%s",
poLayer->GetName(),
poFDefn->GetGeomFieldDefn(nIndex)->GetNameRef());
}
}
}
if( psOptions->poFDefn == NULL && psOptions->poDS == NULL )
pszFieldname = poExpr->string_value;
if( pszFieldname == NULL )
{
if( poExpr->table_name != NULL )
CPLDebug("WFS", "Field \"%s\".\"%s\" unknown. Cannot use server-side filtering",
poExpr->table_name, poExpr->string_value);
else
CPLDebug("WFS", "Field \"%s\" unknown. Cannot use server-side filtering",
poExpr->string_value);
return FALSE;
}
if (psOptions->nVersion >= 200)
osFilter += CPLSPrintf("<%sValueReference>", psOptions->pszNSPrefix);
else
osFilter += CPLSPrintf("<%sPropertyName>", psOptions->pszNSPrefix);
char* pszFieldnameXML = CPLEscapeString(pszFieldname, -1, CPLES_XML);
osFilter += pszFieldnameXML;
CPLFree(pszFieldnameXML);
if (psOptions->nVersion >= 200)
osFilter += CPLSPrintf("</%sValueReference>", psOptions->pszNSPrefix);
else
osFilter += CPLSPrintf("</%sPropertyName>", psOptions->pszNSPrefix);
return TRUE;
}
if( poExpr->eNodeType == SNT_CONSTANT )
{
if (bExpectBinary)
return FALSE;
osFilter += CPLSPrintf("<%sLiteral>", psOptions->pszNSPrefix);
if( !WFS_ExprDumpRawLitteral(osFilter, poExpr) )
return FALSE;
osFilter += CPLSPrintf("</%sLiteral>", psOptions->pszNSPrefix);
return TRUE;
}
if( poExpr->eNodeType != SNT_OPERATION )
return FALSE; /* shouldn't happen */
if( poExpr->nOperation == SWQ_NOT )
{
osFilter += CPLSPrintf("<%sNot>", psOptions->pszNSPrefix);
if (!WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[0], TRUE, psOptions))
return FALSE;
osFilter += CPLSPrintf("</%sNot>", psOptions->pszNSPrefix);
return TRUE;
}
if( poExpr->nOperation == SWQ_LIKE )
{
CPLString osVal;
char ch;
char firstCh = 0;
int i;
if (psOptions->nVersion == 100)
osFilter += CPLSPrintf("<%sPropertyIsLike wildCard='*' singleChar='_' escape='!'>", psOptions->pszNSPrefix);
else
osFilter += CPLSPrintf("<%sPropertyIsLike wildCard='*' singleChar='_' escapeChar='!'>", psOptions->pszNSPrefix);
if (!WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[0], FALSE, psOptions))
return FALSE;
if (poExpr->papoSubExpr[1]->eNodeType != SNT_CONSTANT &&
poExpr->papoSubExpr[1]->field_type != SWQ_STRING)
return FALSE;
osFilter += CPLSPrintf("<%sLiteral>", psOptions->pszNSPrefix);
/* Escape value according to above special characters */
/* For URL compatibility reason, we remap the OGR SQL '%' wildchard into '*' */
i = 0;
ch = poExpr->papoSubExpr[1]->string_value[i];
if (ch == '\'' || ch == '"')
{
firstCh = ch;
i ++;
}
for(;(ch = poExpr->papoSubExpr[1]->string_value[i]) != '\0';i++)
{
if (ch == '%')
osVal += "*";
else if (ch == '!')
osVal += "!!";
else if (ch == '*')
osVal += "!*";
else if (ch == firstCh && poExpr->papoSubExpr[1]->string_value[i + 1] == 0)
break;
else
{
char ach[2];
ach[0] = ch;
ach[1] = 0;
osVal += ach;
}
}
char* pszXML = CPLEscapeString(osVal, -1, CPLES_XML);
osFilter += pszXML;
CPLFree(pszXML);
osFilter += CPLSPrintf("</%sLiteral>", psOptions->pszNSPrefix);
osFilter += CPLSPrintf("</%sPropertyIsLike>", psOptions->pszNSPrefix);
return TRUE;
}
if( poExpr->nOperation == SWQ_ISNULL )
{
osFilter += CPLSPrintf("<%sPropertyIsNull>", psOptions->pszNSPrefix);
if (!WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[0], FALSE, psOptions))
return FALSE;
osFilter += CPLSPrintf("</%sPropertyIsNull>", psOptions->pszNSPrefix);
psOptions->bOutNeedsNullCheck = TRUE;
return TRUE;
}
if( poExpr->nOperation == SWQ_EQ ||
poExpr->nOperation == SWQ_NE ||
poExpr->nOperation == SWQ_LE ||
poExpr->nOperation == SWQ_LT ||
poExpr->nOperation == SWQ_GE ||
poExpr->nOperation == SWQ_GT )
{
int nOperation = poExpr->nOperation;
int bAddClosingNot = FALSE;
if (!psOptions->bPropertyIsNotEqualToSupported && nOperation == SWQ_NE)
{
osFilter += CPLSPrintf("<%sNot>", psOptions->pszNSPrefix);
nOperation = SWQ_EQ;
bAddClosingNot = TRUE;
}
const char* pszName = NULL;
switch(nOperation)
{
case SWQ_EQ: pszName = "PropertyIsEqualTo"; break;
case SWQ_NE: pszName = "PropertyIsNotEqualTo"; break;
case SWQ_LE: pszName = "PropertyIsLessThanOrEqualTo"; break;
case SWQ_LT: pszName = "PropertyIsLessThan"; break;
case SWQ_GE: pszName = "PropertyIsGreaterThanOrEqualTo"; break;
case SWQ_GT: pszName = "PropertyIsGreaterThan"; break;
default: break;
}
osFilter += "<";
osFilter += psOptions->pszNSPrefix;
osFilter += pszName;
osFilter += ">";
if (!WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[0], FALSE, psOptions))
return FALSE;
if (!WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[1], FALSE, psOptions))
return FALSE;
osFilter += "</";
osFilter += psOptions->pszNSPrefix;
osFilter += pszName;
osFilter += ">";
if (bAddClosingNot)
osFilter += CPLSPrintf("</%sNot>", psOptions->pszNSPrefix);
return TRUE;
}
if( poExpr->nOperation == SWQ_AND ||
poExpr->nOperation == SWQ_OR )
{
const char* pszName = (poExpr->nOperation == SWQ_AND) ? "And" : "Or";
osFilter += "<";
osFilter += psOptions->pszNSPrefix;
osFilter += pszName;
osFilter += ">";
if (!WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[0], TRUE, psOptions))
return FALSE;
if (!WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[1], TRUE, psOptions))
return FALSE;
osFilter += "</";
osFilter += psOptions->pszNSPrefix;
osFilter += pszName;
osFilter += ">";
return TRUE;
}
if( poExpr->nOperation == SWQ_CUSTOM_FUNC &&
EQUAL(poExpr->string_value, "ST_MakeEnvelope") )
{
OGRSpatialReference oSRS;
const char* pszSRSName = WFS_ExprGetSRSName( poExpr, 4, psOptions, oSRS );
int bAxisSwap = FALSE;
osFilter += "<gml:Envelope";
if( pszSRSName )
{
osFilter += " srsName=\"";
osFilter += pszSRSName;
osFilter += "\"";
if( oSRS.EPSGTreatsAsLatLong() || oSRS.EPSGTreatsAsNorthingEasting() )
bAxisSwap = TRUE;
}
osFilter += ">";
osFilter += "<gml:lowerCorner>";
if (!WFS_ExprDumpRawLitteral(osFilter, poExpr->papoSubExpr[(bAxisSwap) ? 1 : 0]))
return FALSE;
osFilter += " ";
if (!WFS_ExprDumpRawLitteral(osFilter, poExpr->papoSubExpr[(bAxisSwap) ? 0 : 1]))
return FALSE;
osFilter += "</gml:lowerCorner>";
osFilter += "<gml:upperCorner>";
if (!WFS_ExprDumpRawLitteral(osFilter, poExpr->papoSubExpr[(bAxisSwap) ? 3 : 2]))
return FALSE;
osFilter += " ";
if (!WFS_ExprDumpRawLitteral(osFilter, poExpr->papoSubExpr[(bAxisSwap) ? 2 : 3]))
return FALSE;
osFilter += "</gml:upperCorner>";
osFilter += "</gml:Envelope>";
return TRUE;
}
if( poExpr->nOperation == SWQ_CUSTOM_FUNC &&
EQUAL(poExpr->string_value, "ST_GeomFromText") )
{
OGRSpatialReference oSRS;
const char* pszSRSName = WFS_ExprGetSRSName( poExpr, 1, psOptions, oSRS );
OGRGeometry* poGeom = NULL;
char* pszWKT = (char*)poExpr->papoSubExpr[0]->string_value;
OGRGeometryFactory::createFromWkt(&pszWKT, NULL, &poGeom);
char** papszOptions = NULL;
papszOptions = CSLSetNameValue(papszOptions, "FORMAT", "GML3");
if( pszSRSName != NULL )
{
if( oSRS.EPSGTreatsAsLatLong() || oSRS.EPSGTreatsAsNorthingEasting() )
{
OGR_SRSNode *poGEOGCS = oSRS.GetAttrNode( "GEOGCS" );
if( poGEOGCS != NULL )
poGEOGCS->StripNodes( "AXIS" );
OGR_SRSNode *poPROJCS = oSRS.GetAttrNode( "PROJCS" );
if (poPROJCS != NULL && oSRS.EPSGTreatsAsNorthingEasting())
poPROJCS->StripNodes( "AXIS" );
}
if( EQUALN(pszSRSName, "urn:ogc:def:crs:EPSG::", strlen("urn:ogc:def:crs:EPSG::")) )
papszOptions = CSLSetNameValue(papszOptions, "GML3_LONGSRS", "YES");
else
papszOptions = CSLSetNameValue(papszOptions, "GML3_LONGSRS", "NO");
poGeom->assignSpatialReference(&oSRS);
}
papszOptions = CSLSetNameValue(papszOptions, "GMLID",
CPLSPrintf("id%d", psOptions->nUniqueGeomGMLId ++));
char* pszGML = OGR_G_ExportToGMLEx( (OGRGeometryH)poGeom, papszOptions );
osFilter += pszGML;
CSLDestroy(papszOptions);
delete poGeom;
CPLFree(pszGML);
return TRUE;
}
if( poExpr->nOperation == SWQ_CUSTOM_FUNC )
{
const char* pszName =
EQUAL(poExpr->string_value, "ST_Equals") ? "Equals" :
EQUAL(poExpr->string_value, "ST_Disjoint") ? "Disjoint" :
EQUAL(poExpr->string_value, "ST_Touches") ? "Touches" :
EQUAL(poExpr->string_value, "ST_Contains") ? "Contains" :
EQUAL(poExpr->string_value, "ST_Intersects") ? "Intersects" :
EQUAL(poExpr->string_value, "ST_Within") ? "Within" :
EQUAL(poExpr->string_value, "ST_Crosses") ? "Crosses" :
EQUAL(poExpr->string_value, "ST_Overlaps") ? "Overlaps" :
EQUAL(poExpr->string_value, "ST_DWithin") ? "DWithin" :
EQUAL(poExpr->string_value, "ST_Beyond") ? "Beyond" :
NULL;
if( pszName == NULL )
return FALSE;
osFilter += "<";
osFilter += psOptions->pszNSPrefix;
osFilter += pszName;
osFilter += ">";
for(int i=0;i<2;i++)
{
if( i == 1 && poExpr->papoSubExpr[0]->eNodeType == SNT_COLUMN &&
poExpr->papoSubExpr[1]->eNodeType == SNT_OPERATION &&
poExpr->papoSubExpr[1]->nOperation == SWQ_CUSTOM_FUNC &&
(EQUAL(poExpr->papoSubExpr[1]->string_value, "ST_GeomFromText") ||
EQUAL(poExpr->papoSubExpr[1]->string_value, "ST_MakeEnvelope")) )
{
int bSameTable = psOptions->poFDefn != NULL &&
( poExpr->papoSubExpr[0]->table_name == NULL ||
EQUAL(poExpr->papoSubExpr[0]->table_name, psOptions->poFDefn->GetName()) );
if( bSameTable )
{
int nIndex;
if( (nIndex = psOptions->poFDefn->GetGeomFieldIndex(poExpr->papoSubExpr[0]->string_value)) >= 0 )
{
psOptions->poSRS = psOptions->poFDefn->GetGeomFieldDefn(nIndex)->GetSpatialRef();
}
}
else if( psOptions->poDS != NULL )
{
OGRLayer* poLayer = psOptions->poDS->GetLayerByName(poExpr->papoSubExpr[0]->table_name);
if( poLayer )
{
OGRFeatureDefn* poFDefn = poLayer->GetLayerDefn();
int nIndex;
if( (nIndex = poFDefn->GetGeomFieldIndex(poExpr->papoSubExpr[0]->string_value)) >= 0 )
{
psOptions->poSRS = poFDefn->GetGeomFieldDefn(nIndex)->GetSpatialRef();
}
}
}
}
int bRet = WFS_ExprDumpAsOGCFilter(osFilter, poExpr->papoSubExpr[i], FALSE, psOptions);
psOptions->poSRS = NULL;
if( !bRet )
return FALSE;
}
if( poExpr->nSubExprCount > 2 )
{
osFilter += CPLSPrintf("<%sDistance unit=\"m\">", psOptions->pszNSPrefix);
if (!WFS_ExprDumpRawLitteral(osFilter, poExpr->papoSubExpr[2]) )
return FALSE;
osFilter += CPLSPrintf("</%sDistance>", psOptions->pszNSPrefix);
}
osFilter += "</";
osFilter += psOptions->pszNSPrefix;
osFilter += pszName;
osFilter += ">";
return TRUE;
}
return FALSE;
}
int OGRProj4CT::InitializeNoLock( OGRSpatialReference * poSourceIn,
OGRSpatialReference * poTargetIn )
{
if( poSourceIn == NULL || poTargetIn == NULL )
return FALSE;
poSRSSource = poSourceIn->Clone();
poSRSTarget = poTargetIn->Clone();
bSourceLatLong = CPL_TO_BOOL(poSRSSource->IsGeographic());
bTargetLatLong = CPL_TO_BOOL(poSRSTarget->IsGeographic());
/* -------------------------------------------------------------------- */
/* Setup source and target translations to radians for lat/long */
/* systems. */
/* -------------------------------------------------------------------- */
dfSourceToRadians = DEG_TO_RAD;
bSourceWrap = false;
dfSourceWrapLong = 0.0;
if( bSourceLatLong )
{
OGR_SRSNode *poUNITS = poSRSSource->GetAttrNode( "GEOGCS|UNIT" );
if( poUNITS && poUNITS->GetChildCount() >= 2 )
{
dfSourceToRadians = CPLAtof(poUNITS->GetChild(1)->GetValue());
if( dfSourceToRadians == 0.0 )
dfSourceToRadians = DEG_TO_RAD;
}
}
dfTargetFromRadians = RAD_TO_DEG;
bTargetWrap = false;
dfTargetWrapLong = 0.0;
if( bTargetLatLong )
{
OGR_SRSNode *poUNITS = poSRSTarget->GetAttrNode( "GEOGCS|UNIT" );
if( poUNITS && poUNITS->GetChildCount() >= 2 )
{
double dfTargetToRadians = CPLAtof(poUNITS->GetChild(1)->GetValue());
if( dfTargetToRadians != 0.0 )
dfTargetFromRadians = 1 / dfTargetToRadians;
}
}
/* -------------------------------------------------------------------- */
/* Preliminary logic to setup wrapping. */
/* -------------------------------------------------------------------- */
if( CPLGetConfigOption( "CENTER_LONG", NULL ) != NULL )
{
bSourceWrap = true;
bTargetWrap = true;
dfSourceWrapLong = dfTargetWrapLong =
CPLAtof(CPLGetConfigOption( "CENTER_LONG", "" ));
CPLDebug( "OGRCT", "Wrap at %g.", dfSourceWrapLong );
}
const char *pszCENTER_LONG =
poSRSSource->GetExtension( "GEOGCS", "CENTER_LONG" );
if( pszCENTER_LONG != NULL )
{
dfSourceWrapLong = CPLAtof(pszCENTER_LONG);
bSourceWrap = true;
CPLDebug( "OGRCT", "Wrap source at %g.", dfSourceWrapLong );
}
pszCENTER_LONG = poSRSTarget->GetExtension( "GEOGCS", "CENTER_LONG" );
if( pszCENTER_LONG != NULL )
{
dfTargetWrapLong = CPLAtof(pszCENTER_LONG);
bTargetWrap = true;
CPLDebug( "OGRCT", "Wrap target at %g.", dfTargetWrapLong );
}
bCheckWithInvertProj =
CPLTestBool(CPLGetConfigOption( "CHECK_WITH_INVERT_PROJ", "NO" ));
// The threshold is experimental. Works well with the cases of ticket #2305.
if( bSourceLatLong )
dfThreshold = CPLAtof(CPLGetConfigOption( "THRESHOLD", ".1" ));
else
// 1 works well for most projections, except for +proj=aeqd that
// requires a tolerance of 10000.
dfThreshold = CPLAtof(CPLGetConfigOption( "THRESHOLD", "10000" ));
// OGRThreadSafety: The following variable is not a thread safety issue
// since the only issue is incrementing while accessing which at worse
// means debug output could be one "increment" late.
static int nDebugReportCount = 0;
char *pszSrcProj4Defn = NULL;
if( poSRSSource->exportToProj4( &pszSrcProj4Defn ) != OGRERR_NONE )
{
CPLFree( pszSrcProj4Defn );
return FALSE;
}
if( strlen(pszSrcProj4Defn) == 0 )
{
CPLFree( pszSrcProj4Defn );
CPLError( CE_Failure, CPLE_AppDefined,
"No PROJ.4 translation for source SRS, coordinate\n"
"transformation initialization has failed." );
return FALSE;
}
char *pszDstProj4Defn = NULL;
if( poSRSTarget->exportToProj4( &pszDstProj4Defn ) != OGRERR_NONE )
{
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
return FALSE;
}
if( strlen(pszDstProj4Defn) == 0 )
{
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
CPLError( CE_Failure, CPLE_AppDefined,
"No PROJ.4 translation for destination SRS, coordinate\n"
"transformation initialization has failed." );
return FALSE;
}
/* -------------------------------------------------------------------- */
/* Optimization to avoid useless nadgrids evaluation. */
/* For example when converting between WGS84 and WebMercator */
/* -------------------------------------------------------------------- */
if( pszSrcProj4Defn[strlen(pszSrcProj4Defn)-1] == ' ' )
pszSrcProj4Defn[strlen(pszSrcProj4Defn)-1] = 0;
if( pszDstProj4Defn[strlen(pszDstProj4Defn)-1] == ' ' )
pszDstProj4Defn[strlen(pszDstProj4Defn)-1] = 0;
char* pszNeedle = strstr(pszSrcProj4Defn, " ");
if( pszNeedle )
memmove(pszNeedle, pszNeedle + 1, strlen(pszNeedle + 1)+1);
pszNeedle = strstr(pszDstProj4Defn, " ");
if( pszNeedle )
memmove(pszNeedle, pszNeedle + 1, strlen(pszNeedle + 1)+1);
if( (strstr(pszSrcProj4Defn, "+datum=WGS84") != NULL ||
strstr(pszSrcProj4Defn, "+ellps=WGS84 +towgs84=0,0,0,0,0,0,0 ") != NULL) &&
strstr(pszDstProj4Defn, "+nadgrids=@null ") != NULL &&
strstr(pszDstProj4Defn, "+towgs84") == NULL )
{
char* pszDst = strstr(pszSrcProj4Defn, "+towgs84=0,0,0,0,0,0,0 ");
if( pszDst != NULL )
{
char *pszSrc = pszDst + strlen("+towgs84=0,0,0,0,0,0,0 ");
memmove(pszDst, pszSrc, strlen(pszSrc)+1);
}
else
{
memcpy(strstr(pszSrcProj4Defn, "+datum=WGS84"), "+ellps", 6);
}
pszDst = strstr(pszDstProj4Defn, "+nadgrids=@null ");
char *pszSrc = pszDst + strlen("+nadgrids=@null ");
memmove(pszDst, pszSrc, strlen(pszSrc)+1);
pszDst = strstr(pszDstProj4Defn, "+wktext ");
if( pszDst )
{
pszSrc = pszDst + strlen("+wktext ");
memmove(pszDst, pszSrc, strlen(pszSrc)+1);
}
//bWGS84ToWebMercator =
// strcmp(pszSrcProj4Defn, "+proj=longlat +ellps=WGS84 +no_defs") == 0 &&
// strcmp(pszDstProj4Defn, "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +no_defs") == 0;
}
else
if( (strstr(pszDstProj4Defn, "+datum=WGS84") != NULL ||
strstr(pszDstProj4Defn, "+ellps=WGS84 +towgs84=0,0,0,0,0,0,0 ") != NULL) &&
strstr(pszSrcProj4Defn, "+nadgrids=@null ") != NULL &&
strstr(pszSrcProj4Defn, "+towgs84") == NULL )
{
char* pszDst = strstr(pszDstProj4Defn, "+towgs84=0,0,0,0,0,0,0 ");
if( pszDst != NULL)
{
char* pszSrc = pszDst + strlen("+towgs84=0,0,0,0,0,0,0 ");
memmove(pszDst, pszSrc, strlen(pszSrc)+1);
}
else
memcpy(strstr(pszDstProj4Defn, "+datum=WGS84"), "+ellps", 6);
pszDst = strstr(pszSrcProj4Defn, "+nadgrids=@null ");
char* pszSrc = pszDst + strlen("+nadgrids=@null ");
memmove(pszDst, pszSrc, strlen(pszSrc)+1);
pszDst = strstr(pszSrcProj4Defn, "+wktext ");
if( pszDst )
{
pszSrc = pszDst + strlen("+wktext ");
memmove(pszDst, pszSrc, strlen(pszSrc)+1);
}
bWebMercatorToWGS84 =
strcmp(pszDstProj4Defn,
"+proj=longlat +ellps=WGS84 +no_defs") == 0 &&
strcmp(pszSrcProj4Defn,
"+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 "
"+x_0=0.0 +y_0=0 +k=1.0 +units=m +no_defs") == 0;
}
/* -------------------------------------------------------------------- */
/* Establish PROJ.4 handle for source if projection. */
/* -------------------------------------------------------------------- */
if( !bWebMercatorToWGS84 )
{
if (pjctx)
psPJSource = pfn_pj_init_plus_ctx( pjctx, pszSrcProj4Defn );
else
psPJSource = pfn_pj_init_plus( pszSrcProj4Defn );
if( psPJSource == NULL )
{
if( pjctx != NULL)
{
int l_pj_errno = pfn_pj_ctx_get_errno(pjctx);
/* pfn_pj_strerrno not yet thread-safe in PROJ 4.8.0 */
CPLMutexHolderD(&hPROJMutex);
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.\n%s",
pszSrcProj4Defn, pfn_pj_strerrno(l_pj_errno) );
}
else if( pfn_pj_get_errno_ref != NULL
&& pfn_pj_strerrno != NULL )
{
int *p_pj_errno = pfn_pj_get_errno_ref();
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.\n%s",
pszSrcProj4Defn, pfn_pj_strerrno(*p_pj_errno) );
}
else
{
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.\n",
pszSrcProj4Defn );
}
}
}
if( nDebugReportCount < 10 )
CPLDebug( "OGRCT", "Source: %s", pszSrcProj4Defn );
if( !bWebMercatorToWGS84 && psPJSource == NULL )
{
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
return FALSE;
}
/* -------------------------------------------------------------------- */
/* Establish PROJ.4 handle for target if projection. */
/* -------------------------------------------------------------------- */
if( !bWebMercatorToWGS84 )
{
if (pjctx)
psPJTarget = pfn_pj_init_plus_ctx( pjctx, pszDstProj4Defn );
else
psPJTarget = pfn_pj_init_plus( pszDstProj4Defn );
if( psPJTarget == NULL )
CPLError( CE_Failure, CPLE_NotSupported,
"Failed to initialize PROJ.4 with `%s'.",
pszDstProj4Defn );
}
if( nDebugReportCount < 10 )
{
CPLDebug( "OGRCT", "Target: %s", pszDstProj4Defn );
nDebugReportCount++;
}
if( !bWebMercatorToWGS84 && psPJTarget == NULL )
{
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
return FALSE;
}
/* Determine if we really have a transformation to do */
bIdentityTransform = strcmp(pszSrcProj4Defn, pszDstProj4Defn) == 0;
#if 0
/* In case of identity transform, under the following conditions, */
/* we can also avoid transforming from degrees <--> radians. */
if( bIdentityTransform && bSourceLatLong && !bSourceWrap &&
bTargetLatLong && !bTargetWrap &&
fabs(dfSourceToRadians * dfTargetFromRadians - 1.0) < 1e-10 )
{
// bSourceLatLong = false;
// bTargetLatLong = false;
}
#endif
CPLFree( pszSrcProj4Defn );
CPLFree( pszDstProj4Defn );
return TRUE;
}
