Output GH_Structure gives structure{n;n;n; ....}

oliver_1992 · August 28, 2020, 11:32am

Hello.

I have a short and probably simple question.
When I’m assigning my GH_Structure<GH_Point> to an output, it gives me strange data. (structure{n;n;n; …} )

The code is:

  *private void RunScript(ref object oTree)*

```
 {*
```

   Point3d[,] pts = new Point3d[10, 10];*

   for(int i = 0; i < pts.GetLength(0); i++)*

```
   {*
```

     for(int j = 0; j < pts.GetLength(1); j++)*

```
     {*
```

       pts[i, j] = new Point3d(i * 10 + j, 0, 0);*

```
     }*
```
```
   }*
```

   GH_Structure<GH_Point> tree = new GH_Structure<GH_Point>();*

   for(int i = 0; i < pts.GetLength(0); i++)*

```
   {*
```
```
     GH_Path x = new GH_Path(i);*
```

     for(int j = 0; j < pts.GetLength(1); j++)*

```
     {*
```

       GH_Point y = new GH_Point(pts[i, j]);*

```
       tree.Append(y, x);*
```
```
     }*
```
```
   }*
```
```
   oTree = tree;*
```

What am I doing wrong?
Best wishes,
Oliver

andheum · August 28, 2020, 12:05pm

The advice you got before in this thread (DataTree<T> or GH_Structure<T> in Visual Studio) assumed you were building a custom C# component in visual studio.

In a C# scripting component, I think you’ll have better luck with the DataTree structure rather than the GH_Structure<IGH_Goo>:

rawitscher-torres · August 28, 2020, 12:07pm

Use DataTree<T> in C# scripting components. GH_Structure<T> was developed for use within compiled conde in VS. Probably the C# comp does not recognize that object and cant cast it successfully to be displayed in the viewport

with DataTree<T> you cans till use IGH_Goo derived types.

oliver_1992 · August 28, 2020, 12:17pm

Thank you very much for your answers!
I did not thought about that.
I have tried the code in visual studio studio and it has worked.
@andheum
Yes Im working in vs. I just wanted to try it in the Csharp scripting component first.
So for me, the GH_Structure is still the way to go.
Thank you very much.
Best wishes,
Oliver