Autodesk GIS Design Server

[#1]

Here is the information on how to create topological polygons using ObjectRules: The following assumes that there are two classes, Centroid and Edge. Centroid should have a 'polygon' graphic type and Edge can be any line feature. The centroid features can't currently be digitized using ObjecRules. They can only be drafted in direct mode and thus, it is the application's responsability to draft the centroid, collect the coordinates in a container and pass it back to ObjectRules. The application should have a local user event handler registered for an event (say 'centroid_creation_handler' as specified in DOM). So you have to include this event in your application In the example the name of the container that the application has to pass the drafting method to the DOM is 'ToPolyCentroidPt' . The operation FormPolygon is what should be used. It should be invoked in direct mode with the edge ids passed in the container. Please see the documentation for use of FormPolygon. Here is a scenario: - Have a Create method in Centroid that creates the centroid feature - Have a Create method in Edge that also creates a closed edge - Have a method in Edge that creates a container and adds the edge id to this container - Have a Form method in Centroid that calls FormPolygon operation passing the container. Here an example using the classes "PropertyCent" (centroid) and "PropertyEdge" (boundary) PropertyEdge::create::action Definition(create) Drafting( , Freehand, Draw) StoreEdge(Add, , vewPolygonStoreEdgeData, ) FeatureCode:roperty SetProperty(parcel) GraphicType:roperty SetProperty(line_unltd) Layer:roperty SetProperty(8) Network:roperty SetProperty(8) PropertyCent::Create::Action Definition(create) Attributes(Attributes, traditional, edit) Macro(event centroid_creation_handler) //Calling the event in the application. Drafting(, Direct, Draw, ToPolyCentroidPt) //passing from the application the container with the coordenate to place the centroid. Form::action FormPolygon(direct, Automatic, cancel, vewPolygonStoreEdgeData, , , ) Attributes::Attributes DialogTitle(Attributes for %c) TabTitle(Parcel) TextField("PIN_NUMBER", "pin_number", False) TextField("ADDRESS_NUMBER", "address_number", False) TextField("ROAD_NAME", "road_name", False) TextField("POSTAL_CODE", "postal_code", False) TextField("OWNER", "owner", False) FeatureCode:roperty SetProperty(parcel_c) GraphicType:roperty SetProperty(polygon) Layer:roperty SetProperty(8) Network:roperty SetProperty(8) This works in this way. You can draw the centroid or the edge in any order, but when you draw the Edges, the feat_num of those will be stored in the container 'vewPolygonStoreEdgeData' (you can use the name that you want), and then when the edges and the centroid are already drawn, you have to call to the method 'Form', that will create the topology between the centroid and the Edges. The operation 'FormPolygon' is only supported in direct mode, this means that has to be used a container. Once that the operation is successful the container is flushed, otherwise the feat_nums will stay in the container. In the handler code : MyHandler:nEvent(ULONG count, vutDataItemType** ppItems, BSTR filter) { if (event_name.Compare("centroid_creation_handler") == 0) { vutErrorHistory error_history; HRESULT hr = S_OK; CAppObjectRules *rules_engine = NULL; IAeOrDraftingDataPtr draft_data = NULL; IAeOrCoordinateStringPtr coord_data = NULL; IDispatchPtr container = NULL; IAeOrCoord3DPtr coord_s = NULL; AeOrContainerTypeConstants type(AeOrDraftingData); bool result = false; long coord_count = 0, i = 0; ads_point ads_poly_center; int rc; // Get the rules engine result = CSampleApp::GetOREngine(&rules_engine); if(false == result) { error_history = vutErrorHistory(VUT_ERROR_EN_INVALID_VALUE, "Can not get the rules engine in InvokeCreatePolyCenterDataEvent()"); goto error_handler; } try { // Check to see if the container exists. If not, we will create it. if(!rules_engine->ContainerExists("ToPolyCentroidPt")) { // We need to create a container named acadDraftingData hr = draft_data.CreateInstance("AEObjectRules.AeOrDraftingData"); if (FAILED(hr)) throw _com_error(hr); // Attach it to the container draft_data->put_ContainerName(_bstr_t("ToPolyCentroidPt")); // Attached the container to the rules engine rules_engine->AddContainer(draft_data); } // Retrieve the drafting data from the rules engine rules_engine->GetContainer("ToPolyCentroidPt", type, &container); // Check to see if we get the valid container if(NULL == container) { error_history = vutErrorHistory(VUT_ERROR_EN_INVALID_VALUE, "Can not get the container in InvokeCreatePolyCenterDataEvent()"); goto error_handler; } // Query the drafting data interface hr = container.QueryInterface(__uuidof(IAeOrDraftingData), (void**)&draft_data); if (FAILED(hr)) throw _com_error(hr); // Get the point from AutoCAD rc = acedGetPoint(NULL, "Pick a center point", ads_poly_center); if (RTNORM == rc) { // Get the coord string coord_data = draft_data->GetCoordinateString(); if(NULL == coord_data) { error_history = vutErrorHistory(VUT_ERROR_EN_INVALID_VALUE, "Can not get the CoordinateString in InvokeCreatePolyCenterDataEvent()"); goto error_handler; } coord_count = coord_data->GetCount(); if(0 != coord_count) { // Remove all elements coord_data->Clear(); } // Create a start coord object hr = coord_s.CreateInstance(__uuidof(AeOrCoord3D)); if (FAILED(hr)) throw _com_error(hr); coord_s->PutX(ads_poly_center); coord_s->PutY(ads_poly_center); // Set the value coord_data->Add(coord_s); } } catch (_com_error e) { error_history = vutErrorHistory(e.Error(), (const char *)e.Description()); goto error_handler; } } return error_history; } ---------------------------------------------------------------------------- -------------------

[#2]

how i can draw center line of polyline