Original User: jflorey
Greetings All,
I have written a tool that accesses the IRouteLocator to get the unit of measure. In order to test the tool, I need to attach an route
locator to my M-Value linear feature class. I have tried creating an event layer, and using the Make Route Event Layer
geoprocessing tool, and still when I query the workspace for locators, the collection does not have any valid locators in it. I have
attached the source code that queries for the locator for reference. It's C++. Any help would be greatly appreciated.
Regards,
Jay
IDatasetPtr pDataset(pFeatureClass);
if(NULL==pDataset) return NULL;
IWorkspacePtr pWorkspace;
if(!SUCCEEDED(pDataset->get_Workspace(&pWorkspace))) return NULL;
if(NULL==pWorkspace) return NULL;
ILocatorManagerPtr pLocManager(__uuidof(LocatorManager));
if(NULL==pLocManager) return NULL;
ILocatorWorkspacePtr pLocWorkspace;
if(!SUCCEEDED(pLocManager->GetLocatorWorkspace(pWorkspace, &pLocWorkspace))) return NULL;
if(NULL==pLocWorkspace) return NULL;
IEnumLocatorPtr pEnumLocators;
esriLocatorQuery queryType=esriLocator;
if(!SUCCEEDED(pLocWorkspace->get_Locators(queryType,CComBSTR(_T("")),&pEnumLocators))) return NULL;
if(NULL==pEnumLocators) return NULL;
ILocatorPtr pLocator;
pEnumLocators->Next(&pLocator);
// pLocator is always NULL
while(NULL!=pLocator)
{
IRouteLocator2Ptr pRoute(pLocator);
if(NULL!=pRoute)
{
IFeatureClassPtr pRouteClass;
if(SUCCEEDED(pRoute->get_RouteFeatureClass(&pRouteClass)))
{
long lRouteClassId;
long lFeatureClassId;
if(SUCCEEDED(pFeatureClass->get_FeatureClassID(&lFeatureClassId)) &&
SUCCEEDED(pRouteClass->get_FeatureClassID(&lRouteClassId)))
{
if(lRouteClassId==lFeatureClassId)
return pRoute;
}
}
}
pEnumLocators->Next(&pLocator);
}
return NULL;
