var opvBlockInsertA = opvBlockInserts.ElementAtOrDefault(0); var opvBlockInsertB = opvBlockInserts.ElementAtOrDefault(1); var opvBlock = dwg.Blocks["9999.0110.016902-00"]; DxfDictionary extensionDictionary = opvBlock.ExtensionDictionary; DxfEvalGraph graph = (DxfEvalGraph)extensionDictionary.GetValueByName("ACAD_ENHANCEDBLOCK"); var visParam = graph.Nodes.FirstOrDefault(i => i.Expression is DxfBlockVisibilityParameter par && par.LabelText.Equals("Stopper", StringComparison.OrdinalIgnoreCase))?.Expression as DxfBlockVisibilityParameter; // TODO: get the visibility state that is active for a given insert // var visStateA = visParam?.GetStateForInsert(opvBlockInsertA); // var visStateB = visParam?.GetStateForInsert(opvBlockInsertB);

using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using WW.Cad.IO; using WW.Cad.Model; using WW.Cad.Model.Entities; using WW.Cad.Model.Objects; using WW.Cad.Model.Objects.DynamicBlock; using WW.Cad.Model.Tables; namespace ConsoleApplication { public static class CustomerProblem { public static void CustomerMain(string[] args) { Test(args); } static void Test(string[] args) { GetMoodVisibilityStates(@"C:\support\aluro\1\dynamic_visibility.dwg"); } private static void GetMoodVisibilityStates(string path) { var dwg = DwgReader.Read(path); foreach (var entity in dwg.Entities) { var emoticonInsert = entity as DxfInsert; if (emoticonInsert != null) { var mood = getVisibilityState(dwg, emoticonInsert, "Mood"); Debug.WriteLine($"Emoticon is '{mood}'"); } } } static string getVisibilityState(DxfModel model, DxfInsert insertOfDynamicBlock, string parameterName) { string state = string.Empty; DxfAppId appId; if (model.AppIds.TryGetValue("AcDbBlockRepBTag", out appId)) { DxfBlock dynamicBlock = (DxfBlock)insertOfDynamicBlock.Block.ExtendedDataCollection[appId].Values[1].ValueObject; var enhancedDict = (DxfEvalGraph)dynamicBlock.ExtensionDictionary.GetValueByName("ACAD_ENHANCEDBLOCK"); var parameter = (DxfBlockVisibilityParameter)enhancedDict.Nodes.FirstOrDefault( i => i.Expression is DxfBlockVisibilityParameter par && par.LabelText.Equals(parameterName, StringComparison.OrdinalIgnoreCase) ).Expression; // TODO, get actual state: var state = parameter.GetVisibilityState(insertOfDynamicBlock); var visibilityState = parameter.VisibilityStates.First(); state = GetParameterValue(insertOfDynamicBlock, parameter); } return state; } // Get the parameter value from the insert. private static string GetParameterValue(DxfInsert insert, DxfBlockParameter parameter) { string state = string.Empty; var blockRepresentation = insert.ExtensionDictionary.GetValueByName("AcDbBlockRepresentation") as DxfDictionary; if (blockRepresentation != null) { var dataCache = blockRepresentation.GetValueByName("AppDataCache") as DxfDictionary; if (dataCache != null) { var enhancedBlockData = dataCache.GetValueByName("ACAD_ENHANCEDBLOCKDATA") as DxfDictionary; if (enhancedBlockData != null) { // These are numbered entries "1", etc, might refer to node Id. var xrecord = enhancedBlockData.GetValueByName(parameter.NodeId.Id.ToString()) as DxfXRecord; if (xrecord != null) { // Unsure about all the xrecord value meanings, but the values[5] seems to contain the parameter value for the insert. state = xrecord.Values[5].Value.ToString(); } } } } return state; } } }