IlwisObject *InternalIlwisObjectFactory::createCsy(const Resource& resource, const IOOptions &options) const {
CoordinateSystem *csy = 0;
if ( resource.ilwisType() == itBOUNDSONLYCSY){ // by default to csy unknow but this may be changed later
csy = createFromResource<BoundsOnlyCoordinateSystem>(resource, options);
csy->name("unknown");
csy->code("unknown");
csy->setDescription(TR("Unknown coordinate system"));
}else if ( resource.ilwisType() == itCONVENTIONALCOORDSYSTEM){
csy = createFromResource<ConventionalCoordinateSystem>(resource, options);
csy->name(resource.name());
csy->code(resource.code());
}
return csy;
}
IlwisObject *InternalIlwisObjectFactory::createCsyFromCode(const Resource& resource, const IOOptions &options) const {
QString code = resource.code();
bool isUnknown = code == "unknown" || code == "csy:unknown";
QString projParms = code;
if ( code.left(6) == "proj4:"){
projParms = code.mid(6);
}else if(!isUnknown && code.left(5) == "epsg:"){
QString query = QString("select * from projectedcsy where code='%1'").arg(code);
InternalDatabaseConnection db;
if ( db.exec(query)) {
if (db.next()) {
QSqlRecord rec = db.record();
projParms = rec.value("proj_params").toString();
} else {
kernel()->issues()->log(TR(ERR_COULDNT_CREATE_OBJECT_FOR_2).arg("coordinatesystem", resource.name()));
return 0;
}
}
}
CoordinateSystem *csy = 0;
if ( isUnknown){
csy = createFromResource<BoundsOnlyCoordinateSystem>(resource, options);
csy->name("unknown");
csy->code("unknown");
csy->setDescription(TR("Unknown coordinate system"));
}else {
csy = createFromResource<ConventionalCoordinateSystem>(resource, options);
csy->setDescription(resource.name());
csy->prepare("proj4=" + projParms);
}
return csy;
}
bool CoordinateSystemConnector::loadMetaData(IlwisObject* data, const IOOptions& options)
{
Ilwis3Connector::loadMetaData(data, options);
CoordinateSystem *csy = static_cast<CoordinateSystem *>(data);
QString ellipsoideName;
IEllipsoid ell = getEllipsoid();
GeodeticDatum *datum = getDatum(ellipsoideName);
if ( !ell.isValid() && ellipsoideName != sUNDEF){
QString ellres = QString("ilwis://tables/ellipsoid?code=%1").arg(ellipsoideName);
if (!ell.prepare(ellres)) {
return ERROR1("No ellipsoid for this code %1",ellipsoideName);
}
}
QString cb = _odf->value("CoordSystem", "CoordBounds");
QStringList cbparts = cb.split(" ");
if ( cbparts.size() == 4 && cbparts[0] != "-1e+308") {
bool ok1, ok2, ok3, ok4;
Envelope box( Coordinate(
cbparts[0].toDouble(&ok1),
cbparts[1].toDouble(&ok2)),
Coordinate(
cbparts[2].toDouble(&ok3),
cbparts[3].toDouble(&ok4)));
if ( !( ok1 && ok2 && ok3 && ok4)) {
return ERROR2(ERR_NO_INITIALIZED_2, TR("envelop"), csy->name());
}
csy->envelope(box);
} else {
QString type = _odf->value("CoordSystem", "Type");
if ( type == "LatLon") {
Envelope box(Coordinate(-180,-90), Coordinate(180,90));
csy->envelope(box);
}
}
if ( type() == itCONVENTIONALCOORDSYSTEM ) {
ConventionalCoordinateSystem *csycc = static_cast<ConventionalCoordinateSystem *>(csy);
IProjection proj = getProjection(csycc);
if ( !proj.isValid()) {
return ERROR1(ERR_NO_INITIALIZED_1, "projection");
}
csycc->setDatum(datum);
csycc->setEllipsoid(ell);
csycc->setProjection(proj);
proj->setCoordinateSystem(csycc);
proj->setParameter(Projection::pvELLCODE, ell->toProj4());
csycc->prepare();
} else if ( type() == itUNKNOWN){
//TODO: other types of csy
}
return true;
}