Esempio n. 1
0
OGRGeometry *OGRGeometryFactory::forceToMultiPoint( OGRGeometry *poGeom )

{
    if( poGeom == NULL )
        return NULL;

/* -------------------------------------------------------------------- */
/*      Check for the case of a geometrycollection that can be          */
/*      promoted to MultiPoint.                                         */
/* -------------------------------------------------------------------- */
    if( wkbFlatten(poGeom->getGeometryType()) == wkbGeometryCollection )
    {
        int iGeom;
        int bAllPoint = TRUE;
        OGRGeometryCollection *poGC = (OGRGeometryCollection *) poGeom;

        for( iGeom = 0; iGeom < poGC->getNumGeometries(); iGeom++ )
        {
            if( wkbFlatten(poGC->getGeometryRef(iGeom)->getGeometryType())
                != wkbPoint )
                bAllPoint = FALSE;
        }

        if( !bAllPoint )
            return poGeom;
        
        OGRMultiPoint *poMP = new OGRMultiPoint();

        while( poGC->getNumGeometries() > 0 )
        {
            poMP->addGeometryDirectly( poGC->getGeometryRef(0) );
            poGC->removeGeometry( 0, FALSE );
        }

        delete poGC;

        return poMP;
    }

    if( wkbFlatten(poGeom->getGeometryType()) != wkbPoint )
        return poGeom;

    OGRMultiPoint *poMP = new OGRMultiPoint();
    poMP->addGeometryDirectly( poGeom );

    return poMP;
}
Esempio n. 2
0
 OGRMultiPoint* make()
 {
     OGRMultiPoint* poCollection = new OGRMultiPoint();
     
     poCollection->addGeometryDirectly(make<OGRPoint>());
     
     return poCollection;
 }
Esempio n. 3
0
OGRMultiPoint* OGRMSSQLGeometryParser::ReadMultiPoint(int iShape)
{
    int i;
    OGRMultiPoint* poMultiPoint = new OGRMultiPoint();
    OGRGeometry* poGeom;

    for (i = iShape + 1; i < nNumShapes; i++)
    {
        poGeom = NULL;
        if (ParentOffset(i) == (unsigned int)iShape)
        {
            if  ( ShapeType(i) == ST_POINT )
                poGeom = ReadPoint(i);
        }
        if ( poGeom )
            poMultiPoint->addGeometryDirectly( poGeom );
    }

    return poMultiPoint;
}
Esempio n. 4
0
OGRMultiPoint* OGRMSSQLGeometryParser::ReadMultiPoint(int iShape)
{
    int iFigure, iPoint, iNextPoint;
    iFigure = FigureOffset(iShape);

    OGRMultiPoint* poMultiPoint = new OGRMultiPoint();
    iNextPoint = NextPointOffset(iFigure);
    for (iPoint = PointOffset(iFigure); iPoint < iNextPoint; iPoint++)
    {
        OGRPoint* poPoint;
        
        if ( chProps & SP_HASZVALUES )
            poPoint = new OGRPoint( ReadX(iPoint), ReadY(iPoint), ReadZ(iPoint) );
        else
            poPoint = new OGRPoint( ReadX(iPoint), ReadY(iPoint) );

        if ( poPoint )
            poMultiPoint->addGeometryDirectly( poPoint );
    }

    return poMultiPoint;
}
Esempio n. 5
0
static OGRGeometry *GML2OGRGeometry_XMLNode( CPLXMLNode *psNode )

{
    const char *pszBaseGeometry = BareGMLElement( psNode->pszValue );

/* -------------------------------------------------------------------- */
/*      Polygon                                                         */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"Polygon") )
    {
        CPLXMLNode *psChild;
        OGRPolygon *poPolygon = new OGRPolygon();
        OGRLinearRing *poRing;

        // Find outer ring.
        psChild = FindBareXMLChild( psNode, "outerBoundaryIs" );
        if( psChild == NULL || psChild->psChild == NULL )
        {
            CPLError( CE_Failure, CPLE_AppDefined, 
                      "Missing outerBoundaryIs property on Polygon." );
            delete poPolygon;
            return NULL;
        }

        // Translate outer ring and add to polygon.
        poRing = (OGRLinearRing *) 
            GML2OGRGeometry_XMLNode( psChild->psChild );
        if( poRing == NULL )
        {
            delete poPolygon;
            return NULL;
        }

        if( !EQUAL(poRing->getGeometryName(),"LINEARRING") )
        {
            CPLError( CE_Failure, CPLE_AppDefined, 
                      "Got %.500s geometry as outerBoundaryIs instead of LINEARRING.",
                      poRing->getGeometryName() );
            delete poPolygon;
            delete poRing;
            return NULL;
        }

        poPolygon->addRingDirectly( poRing );

        // Find all inner rings 
        for( psChild = psNode->psChild; 
             psChild != NULL;
             psChild = psChild->psNext ) 
        {
            if( psChild->eType == CXT_Element
                && EQUAL(BareGMLElement(psChild->pszValue),"innerBoundaryIs") )
            {
                poRing = (OGRLinearRing *) 
                    GML2OGRGeometry_XMLNode( psChild->psChild );
                if( !EQUAL(poRing->getGeometryName(),"LINEARRING") )
                {
                    CPLError( CE_Failure, CPLE_AppDefined, 
                              "Got %.500s geometry as innerBoundaryIs instead of LINEARRING.",
                              poRing->getGeometryName() );
                    delete poPolygon;
                    delete poRing;
                    return NULL;
                }

                poPolygon->addRingDirectly( poRing );
            }
        }

        return poPolygon;
    }

/* -------------------------------------------------------------------- */
/*      LinearRing                                                      */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"LinearRing") )
    {
        OGRLinearRing   *poLinearRing = new OGRLinearRing();
        
        if( !ParseGMLCoordinates( psNode, poLinearRing ) )
        {
            delete poLinearRing;
            return NULL;
        }

        return poLinearRing;
    }

/* -------------------------------------------------------------------- */
/*      LineString                                                      */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"LineString") )
    {
        OGRLineString   *poLine = new OGRLineString();
        
        if( !ParseGMLCoordinates( psNode, poLine ) )
        {
            delete poLine;
            return NULL;
        }

        return poLine;
    }

/* -------------------------------------------------------------------- */
/*      PointType                                                       */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"PointType") 
        || EQUAL(pszBaseGeometry,"Point") )
    {
        OGRPoint *poPoint = new OGRPoint();
        
        if( !ParseGMLCoordinates( psNode, poPoint ) )
        {
            delete poPoint;
            return NULL;
        }

        return poPoint;
    }

/* -------------------------------------------------------------------- */
/*      Box                                                             */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"BoxType") || EQUAL(pszBaseGeometry,"Box") )
    {
        OGRLineString  oPoints;

        if( !ParseGMLCoordinates( psNode, &oPoints ) )
            return NULL;

        if( oPoints.getNumPoints() < 2 )
            return NULL;

        OGRLinearRing *poBoxRing = new OGRLinearRing();
        OGRPolygon *poBoxPoly = new OGRPolygon();

        poBoxRing->setNumPoints( 5 );
        poBoxRing->setPoint( 
            0, oPoints.getX(0), oPoints.getY(0), oPoints.getZ(0) );
        poBoxRing->setPoint( 
            1, oPoints.getX(1), oPoints.getY(0), oPoints.getZ(0) );
        poBoxRing->setPoint( 
            2, oPoints.getX(1), oPoints.getY(1), oPoints.getZ(1) );
        poBoxRing->setPoint( 
            3, oPoints.getX(0), oPoints.getY(1), oPoints.getZ(0) );
        poBoxRing->setPoint( 
            4, oPoints.getX(0), oPoints.getY(0), oPoints.getZ(0) );

        poBoxPoly->addRingDirectly( poBoxRing );

        return poBoxPoly;
    }

/* -------------------------------------------------------------------- */
/*      MultiPolygon                                                    */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"MultiPolygon") )
    {
        CPLXMLNode *psChild;
        OGRMultiPolygon *poMPoly = new OGRMultiPolygon();

        // Find all inner rings 
        for( psChild = psNode->psChild; 
             psChild != NULL;
             psChild = psChild->psNext ) 
        {
            if( psChild->eType == CXT_Element
                && EQUAL(BareGMLElement(psChild->pszValue),"polygonMember") )
            {
                OGRPolygon *poPolygon;

                poPolygon = (OGRPolygon *) 
                    GML2OGRGeometry_XMLNode( psChild->psChild );

                if( poPolygon == NULL )
                {
                    delete poMPoly;
                    return NULL;
                }

                if( !EQUAL(poPolygon->getGeometryName(),"POLYGON") )
                {
                    CPLError( CE_Failure, CPLE_AppDefined, 
                              "Got %.500s geometry as polygonMember instead of MULTIPOLYGON.",
                              poPolygon->getGeometryName() );
                    delete poPolygon;
                    delete poMPoly;
                    return NULL;
                }

                poMPoly->addGeometryDirectly( poPolygon );
            }
        }

        return poMPoly;
    }

/* -------------------------------------------------------------------- */
/*      MultiPoint                                                      */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"MultiPoint") )
    {
        CPLXMLNode *psChild;
        OGRMultiPoint *poMP = new OGRMultiPoint();

        // collect points.
        for( psChild = psNode->psChild; 
             psChild != NULL;
             psChild = psChild->psNext ) 
        {
            if( psChild->eType == CXT_Element
                && EQUAL(BareGMLElement(psChild->pszValue),"pointMember") )
            {
                OGRPoint *poPoint;

                poPoint = (OGRPoint *) 
                    GML2OGRGeometry_XMLNode( psChild->psChild );
                if( poPoint == NULL 
                    || wkbFlatten(poPoint->getGeometryType()) != wkbPoint )
                {
                    CPLError( CE_Failure, CPLE_AppDefined, 
                              "Got %.500s geometry as pointMember instead of MULTIPOINT",
                              poPoint ? poPoint->getGeometryName() : "NULL" );
                    delete poPoint;
                    delete poMP;
                    return NULL;
                }

                poMP->addGeometryDirectly( poPoint );
            }
        }

        return poMP;
    }

/* -------------------------------------------------------------------- */
/*      MultiLineString                                                 */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"MultiLineString") )
    {
        CPLXMLNode *psChild;
        OGRMultiLineString *poMP = new OGRMultiLineString();

        // collect lines
        for( psChild = psNode->psChild; 
             psChild != NULL;
             psChild = psChild->psNext ) 
        {
            if( psChild->eType == CXT_Element
                && EQUAL(BareGMLElement(psChild->pszValue),"lineStringMember") )
            {
                OGRGeometry *poGeom;

                poGeom = GML2OGRGeometry_XMLNode( psChild->psChild );
                if( poGeom == NULL 
                    || wkbFlatten(poGeom->getGeometryType()) != wkbLineString )
                {
                    CPLError( CE_Failure, CPLE_AppDefined, 
                              "Got %.500s geometry as Member instead of LINESTRING.",
                              poGeom ? poGeom->getGeometryName() : "NULL" );
                    delete poGeom;
                    delete poMP;
                    return NULL;
                }

                poMP->addGeometryDirectly( poGeom );
            }
        }

        return poMP;
    }

/* -------------------------------------------------------------------- */
/*      GeometryCollection                                              */
/* -------------------------------------------------------------------- */
    if( EQUAL(pszBaseGeometry,"GeometryCollection") )
    {
        CPLXMLNode *psChild;
        OGRGeometryCollection *poGC = new OGRGeometryCollection();

        // collect geoms
        for( psChild = psNode->psChild; 
             psChild != NULL;
             psChild = psChild->psNext ) 
        {
            if( psChild->eType == CXT_Element
                && EQUAL(BareGMLElement(psChild->pszValue),"geometryMember") )
            {
                OGRGeometry *poGeom;

                poGeom = GML2OGRGeometry_XMLNode( psChild->psChild );
                if( poGeom == NULL )
                {
                    CPLError( CE_Failure, CPLE_AppDefined, 
                              "Failed to get geometry in geometryMember" );
                    delete poGeom;
                    delete poGC;
                    return NULL;
                }

                poGC->addGeometryDirectly( poGeom );
            }
        }

        return poGC;
    }

    CPLError( CE_Failure, CPLE_AppDefined, 
              "Unrecognised geometry type <%.500s>.", 
              pszBaseGeometry );

    return NULL;
}
static void ParseObject(const char* pszId,
                        json_object* poObj, OGRGeoJSONLayer* poLayer,
                        json_object* poArcsDB, ScalingParams* psParams)
{
    json_object* poType = OGRGeoJSONFindMemberByName(poObj, "type");
    if( poType == NULL || json_object_get_type(poType) != json_type_string )
        return;
    const char* pszType = json_object_get_string(poType);

    json_object* poArcsObj = OGRGeoJSONFindMemberByName(poObj, "arcs");
    json_object* poCoordinatesObj = OGRGeoJSONFindMemberByName(poObj, "coordinates");
    if( strcmp(pszType, "Point") == 0 || strcmp(pszType, "MultiPoint") == 0 )
    {
        if( poCoordinatesObj == NULL || json_type_array != json_object_get_type(poCoordinatesObj) )
            return;
    }
    else
    {
        if( poArcsObj == NULL || json_type_array != json_object_get_type(poArcsObj) )
            return;
    }

    if( pszId == NULL )
    {
        json_object* poId = OGRGeoJSONFindMemberByName(poObj, "id");
        if( poId != NULL &&
            (json_type_string == json_object_get_type(poId) ||
             json_type_int == json_object_get_type(poId)) )
        {
            pszId = json_object_get_string(poId);
        }
    }

    OGRFeature* poFeature = new OGRFeature(poLayer->GetLayerDefn());
    if( pszId != NULL )
        poFeature->SetField("id", pszId);

    json_object* poProperties = OGRGeoJSONFindMemberByName(poObj, "properties");
    if( poProperties != NULL && json_type_object == json_object_get_type(poProperties) )
    {
        json_object* poName = OGRGeoJSONFindMemberByName(poProperties, "name");
        if( poName != NULL && json_type_string == json_object_get_type(poName) )
        {
            const char* pszName = json_object_get_string(poName);
            poFeature->SetField("name", pszName);
        }
    }

    OGRGeometry* poGeom = NULL;
    if( strcmp(pszType, "Point") == 0 )
    {
        double dfX = 0.0, dfY = 0.0;
        if( ParsePoint( poCoordinatesObj, &dfX, &dfY ) )
        {
            dfX = dfX * psParams->dfScale0 + psParams->dfTranslate0;
            dfY = dfY * psParams->dfScale1 + psParams->dfTranslate1;
            poGeom = new OGRPoint(dfX, dfY);
        }
        else
            poGeom = new OGRPoint();
    }
    else if( strcmp(pszType, "MultiPoint") == 0 )
    {
        OGRMultiPoint* poMP = new OGRMultiPoint();
        poGeom = poMP;
        int nTuples = json_object_array_length(poCoordinatesObj);
        for(int i=0; i<nTuples; i++)
        {
            json_object* poPair = json_object_array_get_idx(poCoordinatesObj, i);
            double dfX = 0.0, dfY = 0.0;
            if( ParsePoint( poPair, &dfX, &dfY ) )
            {
                dfX = dfX * psParams->dfScale0 + psParams->dfTranslate0;
                dfY = dfY * psParams->dfScale1 + psParams->dfTranslate1;
                poMP->addGeometryDirectly(new OGRPoint(dfX, dfY));
            }
        }
    }
    else if( strcmp(pszType, "LineString") == 0 )
    {
        OGRLineString* poLS = new OGRLineString();
        poGeom = poLS;
        ParseLineString(poLS, poArcsObj, poArcsDB, psParams);
    }
    else if( strcmp(pszType, "MultiLineString") == 0 )
    {
        OGRMultiLineString* poMLS = new OGRMultiLineString();
        poGeom = poMLS;
        ParseMultiLineString(poMLS, poArcsObj, poArcsDB, psParams);
    }
    else if( strcmp(pszType, "Polygon") == 0 )
    {
        OGRPolygon* poPoly = new OGRPolygon();
        poGeom = poPoly;
        ParsePolygon(poPoly, poArcsObj, poArcsDB, psParams);
    }
    else if( strcmp(pszType, "MultiPolygon") == 0 )
    {
        OGRMultiPolygon* poMultiPoly = new OGRMultiPolygon();
        poGeom = poMultiPoly;
        ParseMultiPolygon(poMultiPoly, poArcsObj, poArcsDB, psParams);
    }
    
    if( poGeom != NULL )
        poFeature->SetGeometryDirectly(poGeom);
    poLayer->AddFeature(poFeature);
    delete poFeature;
}