Trying to Set the Reference for Reference Text c#

[brianchapmandesign]

Can't seem to find where to set the actual reference for a reference text... I've drilled down to the specific component but don't see any options

Anyone know how to do this?

                                        foreach (ObjectId parts in mycomponents)
                                        {
                                            try
                                            {
                                                LabelStyleComponent mytext = tr.GetObject(parts, OpenMode.ForWrite) as LabelStyleComponent;
                                                 if (mytext.GetType().ToString() == "Autodesk.Civil.DatabaseServices.Styles.LabelStyleReferenceTextComponent")
                                                {
                                                    LabelStyleReferenceTextComponent fnltext = mytext as LabelStyleReferenceTextComponent;
                                                    
                                                    
                                                }

                                            }
                                            catch
                                            {
                                            }

[Jeff_M]

http://forums.autodesk.com/t5/AutoCAD-Civil-3D-Customization/set-LabelStyleReferenceTextComponent-re...

And still not available in 2014.

[brianchapmandesign]

Thanks Jeff...was hoping for progress since then lol

[Anonymous]

Hi area51visitor, Jeff,

Did you guys check this API -

LabelGroupSubEntity.SetReferenceTextTarget()

I thought this would help here.

Thanks,

[Anonymous]

I missed to add the link to API ref doc -

http://docs.autodesk.com/CIV3D/2014/ENU/API_Reference_Guide/html/ad7504cf-389f-c3f5-074d-1c5ec9c2782...

Thanks,

[brianchapmandesign]

Thanks Partha I'll give it a shot 🙂

[brianchapmandesign]

Appears I'm doing something wrong below in the last part for setting the reference... for some reason it's not doing it.... anyone care to school me? I can set the referene manually to my alignment, but not this way.

                                    ObjectId lblId = GeneralSegmentLabel.Create(pselect.ObjectId, 0.00001, linelabelstyle, curvelabelstyle);

                                    using (Transaction tr = database.TransactionManager.StartTransaction())
                                    {
                                        GeneralSegmentLabel style = lblId.GetObject(OpenMode.ForRead) as GeneralSegmentLabel;
                                        ObjectIdCollection mycomponents = style.GetTextComponentIds() as ObjectIdCollection;
                                        foreach (ObjectId parts in mycomponents)
                                        {
                                            try
                                            {
                                                LabelStyleComponent mytext = tr.GetObject(parts, OpenMode.ForWrite) as LabelStyleComponent;
                                                 if (mytext.GetType().ToString() == "Autodesk.Civil.DatabaseServices.Styles.LabelStyleReferenceTextComponent")
                                                {
                                                    LabelStyleReferenceTextComponent fnltext = mytext as LabelStyleReferenceTextComponent;
                                                    if (fnltext.Name == "Station")
                                                    {
                                                        LabelGroup mylabelgroup = tr.GetObject(parts, OpenMode.ForWrite) as LabelGroup;
                                                        foreach (LabelGroupSubEntity stationsub in mylabelgroup.SubEntities)
                                                        {        
                                                                ObjectId stationidtext = fnltext.ObjectId;
                                                                stationsub.SetReferenceTextTarget(fnltext.ObjectId, alignmentId);
                                                        }
                                                        
                                                    }

                                                }

                                            }
                                            catch
                                            {
                                            }
                                        }
                                    }

[Jeff_M]

Brian, this is only available in 2014 at this point.

Partha, thanks for correcting me on this. I obviously missed this when looking for new/updated things in the 2014 API.

Note that this method, along with  GetReferenceTextTarget(), is also applicable to a Label object.

[brianchapmandesign]

Thanks Jeff...using 2014 but not sure it works.

Partha... the docs say get the object ID of the civil 3d object I want to use. I'm assuming using my alignment object ID would be correct in this circumstance right?  If that's the case can you see a reason why my code above isn't working?  I tried commiting the transaction as well just to see but still no change in the reference.

Thanks!

[Jeff_M]

No time for testing right now, but the first thing I'd do is step through the code while running to see where it fails.... Once I get this rush job to the printer at 2 this afternoon I'll have a closer look at it.

[brianchapmandesign]

Right... thanks bud... did the same thing, I step all the way successfully
through to the last part where it's trying to set the reference.
Appreciate it 🙂

[brianchapmandesign]

To be specific the part that's failing is here:

  LabelGroup mylabelgroup = tr.GetObject(parts, OpenMode.ForWrite) as LabelGroup;                                                       
                                                        foreach (LabelGroupSubEntity stationsub in mylabelgroup.SubEntities)
                                                        {
                                                                ObjectId stationidtext = fnltext.ObjectId;
                                                                stationsub.SetReferenceTextTarget(fnltext.ObjectId, alignmentId);
                                                                tr.Commit();
                                                        }

I'm not sure my LabelGroup is correct

[Jeff_M]

If you have a label, you don't need/want a labelgroup....use the Label object

[brianchapmandesign]

Not sure I can grab the labelgroupsubentity without label group

[Jeff_M]

If it is a label, you just use the Label.SetReferenceTextTarget() method.

[brianchapmandesign]

Thanks Jeff... but I'm trying to set the specific reference for two difference reference text in a label.  The references are different for each, which is why I think I need to use the group, then get the entity from that group as Partha recommended.. not sure... I'll need to beat my head against the desk a little more before it clicks

[Jeff_M · Accepted solution]

Brian,

The LabelGroup is used when you have a number of labels that are grouped together, such as the AlignmentLabels. A GeneralSegmentLabel is not a group.

You should be able to get what you need from this:

        [CommandMethod("CreateRefLabel")]
        public void editrefobj()
        {
            Document doc = Application.DocumentManager.MdiActiveDocument;
            Database database = doc.Database;
            Editor ed = doc.Editor;
            PromptEntityOptions opts = new PromptEntityOptions("\nSelect a line:");
            PromptEntityResult pselect = ed.GetEntity(opts);
            if (pselect.Status != PromptStatus.OK)
                return;
            CivilDocument civdoc = CivilApplication.ActiveDocument;
            ObjectId linelabelstyle = civdoc.Styles.LabelStyles.GeneralLineLabelStyles[0];
            ObjectId curvelabelstyle = civdoc.Styles.LabelStyles.GeneralCurveLabelStyles[0];
            ObjectId alignmentId = civdoc.GetAlignmentIds()[0];
            ObjectId lblId = GeneralSegmentLabel.Create(pselect.ObjectId, 0.00001, linelabelstyle, curvelabelstyle);

            using (Transaction tr = database.TransactionManager.StartTransaction())
            {
                GeneralSegmentLabel label = lblId.GetObject(OpenMode.ForRead) as GeneralSegmentLabel;
                ObjectIdCollection mycomponents = label.GetTextComponentIds() as ObjectIdCollection;
                foreach (ObjectId parts in mycomponents)
                {
                    LabelStyleReferenceTextComponent fnltext = tr.GetObject(parts, OpenMode.ForRead) as LabelStyleReferenceTextComponent;
                    if (fnltext == null)
                        continue;
                    if (fnltext.Name == "Station")
                    {
                        label.UpgradeOpen();
                        label.SetReferenceTextTarget(fnltext.ObjectId, alignmentId);
                        label.DowngradeOpen();
                    }
                }
                tr.Commit();
            }
        }

 This works correctly.

[Jeff_M]

And if you also have a component for "Offset", you just need to change one line of code:

if (fnltext.Name == "Station" || fnltext.Name == "Offset")

 and they both will get updated.

[brianchapmandesign]

oY ...Geez... thanks Jeff... for always clearing up the confusion (and providing solutions at the same time)... we'd be lost without ya

[Jeff_M]

Glad to help, Brian! One thing I should note which I caught after posting the code, since we are creating the label with a known style that we know we are going to be setting the ReferenceId, I would just Open the label for Write and remove the UpgradeOpen and DowngradeOpen calls.