Topic: Use WPF dialog button to draw a line

[MickD]

Thank you MickD for your reply .

After picking the first point the rubber band goes to 0,0,0 and did not start from first point  can you check this out again please ?

I have no idea why, it should work if you picked pt1 in the first part of the method, that point is set as the base point for the rubber band. Does your code look like this?

Code - C#: [Select]

1. internal static void DrawLine()
2.         {
3.             Document doc = AcAp.DocumentManager.MdiActiveDocument;
4.             Database db = doc.Database;
5.  
6.             PromptPointOptions p1 = new PromptPointOptions("Specify base point :");
7.             PromptPointResult rep1;
8.             rep1 = doc.Editor.GetPoint(p1);
9.             Point3d pt1 = rep1.Value; // ******* this point gets used as the base point in the next part
10.             if (rep1.Status == PromptStatus.Cancel) return;
11.  
12.             PromptPointOptions p2 = new PromptPointOptions("Next point :");
13.             p2.UseBasePoint = true; // ******* yes, I want to use a rubber band
14.             p2.BasePoint = pt1; // ******* use this point as the base point for the rubber band line
15.             PromptPointResult rep2;
16.             rep2 = doc.Editor.GetPoint(p2);
17.             Point3d pt2 = rep2.Value;
18.             if (rep2.Status == PromptStatus.Cancel) return;
19.  
20.             using (Transaction tr = db.TransactionManager.StartTransaction())
21.             {
22.                 var mSpace = (BlockTableRecord)tr.GetObject(SymbolUtilityServices.GetBlockModelSpaceId(db), OpenMode.ForWrite);
23.                 var line = new Line(pt1, pt2);
24.                 line.ColorIndex = 6;
25.  
26.                 mSpace.AppendEntity(line);
27.                 tr.AddNewlyCreatedDBObject(line, true);
28.                 tr.Commit();
29.             }
30.         }
31.  

[Coder]

I have no idea why, it should work if you picked pt1 in the first part of the method, that point is set as the base point for the rubber band. Does your code look like this?

Yes the same . and I replaced your modified codes with my current codes and it gives the same result .

[Coder]

Sorry I replied before you modified the codes .

Now it works  thank you .

What was the problem in the first codes according to this last modified codes ?

[MickD]

Without looking at your code I have no idea and if you have a look they are exactly the same lines of code I posted earlier, I just put them in the method listed in the post above.

You really need to study what you did and work it out, it was probably something simple, it always is. If you don't find the problem you'll never know

[Coder]

Thank you MickD for your help and advice .