Beispiel #1
0
OGR_SRSNode *OGR_SRSNode::Clone() const

{
    OGR_SRSNode *poNew = new OGR_SRSNode( pszValue );

    for( int i = 0; i < nChildren; i++ )
    {
        poNew->AddChild( papoChildNodes[i]->Clone() );
    }

    return poNew;
}
static void importXMLUnits(CPLXMLNode *psSrcXML, const char *pszClass,
                           OGRSpatialReference *poSRS, const char *pszTarget)

{
    const char  *pszUnitName, *pszUnitsPer;
    OGR_SRSNode *poNode = poSRS->GetAttrNode(pszTarget);
    OGR_SRSNode *poUnits;

    CPLAssert(EQUAL(pszClass, "AngularUnit")
              || EQUAL(pszClass, "LinearUnit"));

    psSrcXML = CPLGetXMLNode(psSrcXML, pszClass);
    if (psSrcXML == NULL)
        goto DefaultTarget;

    pszUnitName = CPLGetXMLValue(psSrcXML, "NameSet.name", "unnamed");
    if (EQUAL(pszClass, "AngularUnit"))
        pszUnitsPer = CPLGetXMLValue(psSrcXML, "radiansPerUnit", NULL);
    else
        pszUnitsPer = CPLGetXMLValue(psSrcXML, "metresPerUnit", NULL);

    if (pszUnitsPer == NULL)
    {
        CPLDebug("OGR_SRS_XML",
                 "Missing PerUnit value for %s.",
                 pszClass);
        goto DefaultTarget;
    }

    if (poNode == NULL)
    {
        CPLDebug("OGR_SRS_XML", "Can't find %s in importXMLUnits.",
                 pszTarget);
        goto DefaultTarget;
    }

    if (poNode->FindChild("UNIT") != -1)
    {
        poUnits = poNode->GetChild(poNode->FindChild("UNIT"));
        poUnits->GetChild(0)->SetValue(pszUnitName);
        poUnits->GetChild(1)->SetValue(pszUnitsPer);
    }
    else
    {
        poUnits = new OGR_SRSNode("UNIT");
        poUnits->AddChild(new OGR_SRSNode(pszUnitName));
        poUnits->AddChild(new OGR_SRSNode(pszUnitsPer));

        poNode->AddChild(poUnits);
    }

    return;

DefaultTarget:
    poUnits = new OGR_SRSNode("UNIT");
    if (EQUAL(pszClass, "AngularUnit"))
    {
        poUnits->AddChild(new OGR_SRSNode(SRS_UA_DEGREE));
        poUnits->AddChild(new OGR_SRSNode(SRS_UA_DEGREE_CONV));
    }
    else
    {
        poUnits->AddChild(new OGR_SRSNode(SRS_UL_METER));
        poUnits->AddChild(new OGR_SRSNode("1.0"));
    }

    poNode->AddChild(poUnits);
}