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Code Red => .NET => Topic started by: MexicanCustard on January 29, 2013, 03:45:29 PM

Title: AutoCAD MEP Display Manager Override
Post by: MexicanCustard on January 29, 2013, 03:45:29 PM

Has anyone got an example on overriding the display manager properties on a single object. The examples that come with MEP are only for Walls and Materials which use DisplayPropertiesWallPlan() and DisplayPropertiesMaterial(). For pipe and fittings I'm assuming I need to use DisplayProperties() which when you create a new instance has no DisplayComponents.

Title: Re: AutoCAD MEP Display Manager Override
Post by: Keith Brown on January 29, 2013, 10:52:02 PM

Here are two examples from an old AU class. They also use a wall but not in the manner you describe...... I think.

Code - C#: [Select]

       #region Example_DisplayOverrideDefaultDrawing
        [CommandMethod("ACAClassCode", "ExDisplayOverrideDefaultDrawing", CommandFlags.Modal)]
        public void DisplayOverrideDefaultDrawing()
        {
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            try
            {
                PromptEntityOptions entopts = new PromptEntityOptions("Pick an entity of your choice from the drawing to change colors.");
                entopts.Message = "Pick an entity of your choice from the drawing to change colors.";
                PromptEntityResult entRes = null;
                try
                {
                    entRes = ed.GetEntity(entopts);
                }
                catch
                {
                    ed.WriteMessage("You did not select a valid entity");
                    return;
                }
 
                if (entRes.Status != PromptStatus.Error)
                {
                    ObjectId entid = entRes.ObjectId;
                    Database db = Application.DocumentManager.MdiActiveDocument.Database;
                    Autodesk.AutoCAD.DatabaseServices.TransactionManager tm = db.TransactionManager;
                    using (Transaction trans1 = tm.StartTransaction())
                    {
                        // we have object level overrides if this is > 0
                        ObjectIdCollection dispIdsFromEntity = DisplayProperties.GetDisplayPropertiesFromOverride(entid);
                        foreach (ObjectId id in dispIdsFromEntity)
                        {
                            DoColorOverrideChange(id, 1);
                        }
 
                        // See if there is a style ovverride and change its color only if present
                        ObjectId wallStyleId = new ObjectId();
 
                        using (Transaction trans2 = tm.StartTransaction())
                        {
                            Autodesk.AutoCAD.DatabaseServices.Entity ent = (Autodesk.AutoCAD.DatabaseServices.Entity)tm.GetObject(entid, OpenMode.ForRead, true);
                            if (ent.GetType() == typeof(Wall))
                            {
                                Wall wall = ent as Wall;
                                wallStyleId = wall.StyleId;
                            }
                            trans2.Commit();
                        }
 
                        if (!wallStyleId.IsNull)
                        {
                            ObjectIdCollection dispIdsFromStyle = DisplayProperties.GetDisplayPropertiesFromOverride(wallStyleId);
                            foreach (ObjectId id in dispIdsFromStyle)
                            {
                                DoColorOverrideChange(id, 2);
                            }
                        }
 
                        // Now, just blanket the drawing level override with a new color for the wall class.
 
                        DisplayRepresentationManager mgr = new DisplayRepresentationManager();
                        ObjectIdCollection idsReps = mgr.GetDisplayRepresentationIdsFromCurrentViewport(RXObject.GetClass(typeof(Wall)));
                        using (Transaction trans3 = tm.StartTransaction())
                        {
                            foreach (ObjectId id in idsReps)
                            {
                                DisplayRepresentation rep = (DisplayRepresentation)tm.GetObject(id, OpenMode.ForRead, true);
                                if (rep.Name == "AecDbDispRepWallPlan") // this is a sanity check, I believe because we are getting the displayreps frmo the current viewport, based on wall, there can be only this one per class per drawing...
                                {
                                    Autodesk.AutoCAD.DatabaseServices.Entity ent = (Autodesk.AutoCAD.DatabaseServices.Entity)tm.GetObject(entid, OpenMode.ForRead, true);
                                    ObjectId idDispProp = rep.GetDisplayPropertiesId(ent);
                                    DoColorOverrideChange(idDispProp, 6);
                                }
                            }
                            trans3.Commit();
                        }
 
 
                        trans1.Commit();
                    }
                }
            }
            catch (System.Exception e)
            {
                ed.WriteMessage("\nException: " + e.Message);
            }
            finally
            {
            }
        }
 
        void DoColorOverrideChange(ObjectId id, short color)
        {
            Database db = HostApplicationServices.WorkingDatabase;
            Autodesk.AutoCAD.DatabaseServices.TransactionManager tm = db.TransactionManager;
            using (Transaction trans = tm.StartTransaction())
            {
                DisplayProperties dispProps = (DisplayProperties)tm.GetObject(id, OpenMode.ForRead, true);
                System.Collections.Specialized.StringCollection compNames = new System.Collections.Specialized.StringCollection();
                DisplayComponent[] comps = dispProps.GetDisplayComponents(out compNames);
                if (compNames.Contains("Shrink Wrap"))
                {
                    if (comps[compNames.IndexOf("Shrink Wrap")].GetType() == typeof(DisplayComponentEntity))
                    {
                        DisplayComponentEntity compEntity = comps[compNames.IndexOf("Shrink Wrap")] as DisplayComponentEntity;
                        dispProps.UpgradeOpen();
                        if (compEntity.Color.ColorMethod == Autodesk.AutoCAD.Colors.ColorMethod.ByAci)
                            compEntity.ColorIndex = color;
                        else
                            compEntity.Color = Autodesk.AutoCAD.Colors.Color.FromColorIndex(Autodesk.AutoCAD.Colors.ColorMethod.ByColor, color);
 
                    }
                }
                trans.Commit();
            }
        }
        #endregion
 
        #region Example_DisplayOverrideAddEntity
        [CommandMethod("ACAClassCode", "ExDisplayOverrideAddEntity", CommandFlags.Modal)]
        public void DisplayOverrideEntity()
        {
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            try
            {
                PromptEntityOptions entopts = new PromptEntityOptions("Pick an entity of your choice from the drawing to add color override.");
                entopts.Message = "Pick an entity of your choice from the drawing to add color override.";
                PromptEntityResult entRes = null;
                try
                {
                    entRes = ed.GetEntity(entopts);
                }
                catch
                {
                    ed.WriteMessage("You did not select a valid entity");
                    return;
                }
 
                if (entRes.Status != PromptStatus.Error)
                {
                    ObjectId entid = entRes.ObjectId;
                    Database db = Application.DocumentManager.MdiActiveDocument.Database;
                    Autodesk.AutoCAD.DatabaseServices.TransactionManager tm = db.TransactionManager;
                    using (Transaction trans1 = tm.StartTransaction())
                    {
                        DisplayRepresentationManager mgr = new DisplayRepresentationManager();
                        ObjectIdCollection idsReps = mgr.GetDisplayRepresentationIdsFromCurrentViewport(RXObject.GetClass(typeof(Wall)));
                        ObjectId idRep = idsReps[0];
                        DisplayRepresentation rep = (DisplayRepresentation)tm.GetObject(idRep, OpenMode.ForRead, true);
                        if (rep.Name == "AecDbDispRepWallPlan")
                        {
                            DisplayProperties newProps = rep.CreateNewDisplayProperties();
                            newProps.SetToStandard(db);
                            newProps.SubSetDatabaseDefaults(db);
                            newProps.SetDisplayRepDefaults(rep);
                            //                
                            System.Collections.Specialized.StringCollection compNames = new System.Collections.Specialized.StringCollection();
                            DisplayComponent[] comps = newProps.GetDisplayComponents(out compNames);
                            if (compNames.Contains("Shrink Wrap"))
                            {
                                if (comps[compNames.IndexOf("Shrink Wrap")].GetType() == typeof(DisplayComponentEntity))
                                {
                                    DisplayComponentEntity compEntity = comps[compNames.IndexOf("Shrink Wrap")] as DisplayComponentEntity;
                                    compEntity.ResetEnt();
                                    if (compEntity.Color.ColorMethod == Autodesk.AutoCAD.Colors.ColorMethod.ByAci)
                                        compEntity.ColorIndex = 30; // Made a code change here so we could see it!!!!
                                    else
                                        compEntity.Color = Autodesk.AutoCAD.Colors.Color.FromColorIndex(Autodesk.AutoCAD.Colors.ColorMethod.ByColor, 30); // Made a code change here so we could see it!!!!
 
                                }
                            }
                            //
                            ObjectId idNOD = db.NamedObjectsDictionaryId;
                            Autodesk.AutoCAD.DatabaseServices.DBDictionary nodDict = (Autodesk.AutoCAD.DatabaseServices.DBDictionary)tm.GetObject(idNOD, OpenMode.ForRead, true);
 
                            ObjectId idOverrideExtDict = new ObjectId();
                            try
                            {
                                idOverrideExtDict = nodDict.GetAt(Override.ExtensionDictionaryName);
                            }
                            catch (Autodesk.AutoCAD.Runtime.Exception e)
                            {
                                if (e.ErrorStatus == Autodesk.AutoCAD.Runtime.ErrorStatus.KeyNotFound)
                                {
                                    DBDictionary dict = new DBDictionary();
                                    nodDict.UpgradeOpen();
                                    idOverrideExtDict = nodDict.SetAt(Override.ExtensionDictionaryName, dict);
                                    nodDict.DowngradeOpen();
                                    trans1.AddNewlyCreatedDBObject(dict, true);
                                }
                            }
                            if (idOverrideExtDict.IsNull)
                                return;
 
                            Autodesk.AutoCAD.DatabaseServices.DBDictionary overrideExtDict = (Autodesk.AutoCAD.DatabaseServices.DBDictionary)tm.GetObject(idOverrideExtDict, OpenMode.ForWrite, true);
                            ObjectId idNewProps = overrideExtDict.SetAt("*A", newProps);
                            trans1.AddNewlyCreatedDBObject(newProps, true);
 
                            OverrideDisplayProperties overProps = new OverrideDisplayProperties();
                            overProps.ViewId = idRep;
                            overProps.DisplayPropertyId = idNewProps;
                            Autodesk.Aec.DatabaseServices.Entity ent = (Autodesk.Aec.DatabaseServices.Entity)tm.GetObject(entid, OpenMode.ForWrite, true);
                            ent.Overrides.Add(overProps);
                        }
                        trans1.Commit();
                    }
                }
            }
            catch (System.Exception e)
            {
                ed.WriteMessage("\nError: " + e.Message);
            }
            finally
            {
            }
        }
        #endregion
 

Title: Re: AutoCAD MEP Display Manager Override
Post by: MexicanCustard on January 30, 2013, 08:08:25 AM

Thanks for posting that. The method DisplayOverrideEntity() is the example I wished I had yesterday. I was able, through lots of trial and error, to find the key, DisplayRepresentation.CreateNewDisplayProperties(). Using that method instead of instantiating a new instance of DisplayProperties is where you get the DisplayComponents for the view you are working on. From there its the same as the examples included with MEP.

Title: Re: AutoCAD MEP Display Manager Override
Post by: MexicanCustard on January 31, 2013, 02:37:54 PM

Ok, I'm still having a problem creating a new Override. If the current DisplayRepresentation is anything other than "Plan" or a "Plan" derivative then using DisplayRepresentation.CreateNewDisplayProperties() returns a DisplayProperties with an empty DisplayComponent collection. Using the GetDisplayComponents() method from the new DisplayProperties returns an empty array of DisplayComponents.

I'm trying to change the color of the object, a pipe, while in the current display. Without the DisplayComponent "Contour" I have nothing to change.

Code: [Select]

                    var displayManager = new DisplayRepresentationManager(db);
                    var pipeIds = displayManager.GetDisplayRepresentationIdsFromCurrentViewport(RXObject.GetClass(typeof(Pipe)));
                    var pipeDisplayRep = (DisplayRepresentation)pipeIds[0].GetObject(OpenMode.ForRead);
                    var pipeDisplayProp = pipeDisplayRep.CreateNewDisplayProperties(); <--If pipeDisplayRep is anything other than "Plan"
                    pipeDisplayProp.SetToStandard(db);
                    pipeDisplayProp.SubSetDatabaseDefaults(db);

                    var sc = new StringCollection();
                    var components = pipeDisplayProp.GetDisplayComponents(out sc); <--components will be an empty array
                    foreach (DisplayComponentEntity component in fittingComponents)
                    {
                        component.Color = Color.FromColorIndex(ColorMethod.ByAci, 1);
                    }

So if anyone can point me in the right direction it would be greatly appreciated.

Title: Re: AutoCAD MEP Display Manager Override
Post by: Micaletti on August 07, 2013, 04:02:04 PM

Quote from: MexicanCustard on January 31, 2013, 02:37:54 PM

Ok, I'm still having a problem creating a new Override. If the current DisplayRepresentation is anything other than "Plan" or a "Plan" derivative then using DisplayRepresentation.CreateNewDisplayProperties() returns a DisplayProperties with an empty DisplayComponent collection. Using the GetDisplayComponents() method from the new DisplayProperties returns an empty array of DisplayComponents.

I'm trying to change the color of the object, a pipe, while in the current display. Without the DisplayComponent "Contour" I have nothing to change.

Code: [Select]
var displayManager = new DisplayRepresentationManager(db); var pipeIds = displayManager.GetDisplayRepresentationIdsFromCurrentViewport(RXObject.GetClass(typeof(Pipe))); var pipeDisplayRep = (DisplayRepresentation)pipeIds[0].GetObject(OpenMode.ForRead); var pipeDisplayProp = pipeDisplayRep.CreateNewDisplayProperties(); <--If pipeDisplayRep is anything other than "Plan" pipeDisplayProp.SetToStandard(db); pipeDisplayProp.SubSetDatabaseDefaults(db); var sc = new StringCollection(); var components = pipeDisplayProp.GetDisplayComponents(out sc); <--components will be an empty array foreach (DisplayComponentEntity component in fittingComponents) { component.Color = Color.FromColorIndex(ColorMethod.ByAci, 1); }

So if anyone can point me in the right direction it would be greatly appreciated.

I don't see where you are adding the override to the Named Objects Dictionary anywhere. You are also missing pipeDisplayProp.SetDisplayRepDefaults()

Title: Re: AutoCAD MEP Display Manager Override
Post by: MexicanCustard on August 08, 2013, 07:55:58 AM

Quote from: Micaletti on August 07, 2013, 04:02:04 PM

I don't see where you are adding the override to the Named Objects Dictionary anywhere. You are also missing pipeDisplayProp.SetDisplayRepDefaults()

Like I mentioned, all the examples are for Wall types and none of them show adding the Override to the NOD. I did try calling SetDisplayRepDefaults and if the view is in anything other than "Plan" if wouldn't fill in any of the properties so I removed it from my example. Can you post an example of how you accomplished this?

Title: Re: AutoCAD MEP Display Manager Override
Post by: Micaletti on August 08, 2013, 01:27:09 PM

The code above uses a catch block *gasp* ;-) to find the override extension dictionary inside the named objects dictionary, then adds the override to it. I was able translate the example and get it working for schedule table display reps. Just do what they're doing but with a pipe and not a door.

Title: Re: AutoCAD MEP Display Manager Override
Post by: MexicanCustard on August 08, 2013, 03:21:48 PM

Quote from: Micaletti on August 08, 2013, 01:27:09 PM

The code above uses a catch block *gasp* ;-) to find the override extension dictionary inside the named objects dictionary, then adds the override to it. I was able translate the example and get it working for schedule table display reps. Just do what they're doing but with a pipe and not a door.

How about your example using a Pipe?

Title: Re: AutoCAD MEP Display Manager Override
Post by: Micaletti on August 08, 2013, 04:51:33 PM

Quote from: MexicanCustard on August 08, 2013, 03:21:48 PM

Quote from: Micaletti on August 08, 2013, 01:27:09 PM
The code above uses a catch block *gasp* ;-) to find the override extension dictionary inside the named objects dictionary, then adds the override to it. I was able translate the example and get it working for schedule table display reps. Just do what they're doing but with a pipe and not a door.

How about your example using a Pipe?

I suspected SetDisplayRepDefaults was the problem but you're saying it's not so I can't give you an example for a pipe. Can't set the override till you get past this point. I assume you have tried all of the pipeIds? DisplayRepresentationManager.GetAllDisplayRepresentationsWorkForSpecifiedClass?

Title: Re: AutoCAD MEP Display Manager Override
Post by: MexicanCustard on August 09, 2013, 07:11:02 AM

I can't remember if I had tried GetAllDisplayRepresentationsWorkForSpecifiedClass I don't think I did but that was eight months ago. I'll have to go back and look at my experimental code and see if I can recall exactly what I tried and what I discovered. I ended up solving the problem using DisplayThemes instead of overriding the individual fitting Display Properties.

TheSwamp

Code Red => .NET => Topic started by: MexicanCustard on January 29, 2013, 03:45:29 PM