class instantiation

Replies to This Discussion

Permalink Reply by David Rutten on March 15, 2013 at 6:28am

You can't, code inside components is typically not usable from within other components. Luckily the mComp component doesn't do anything tricky, it just gets a list of all mesh vertices, faces, normals and colours from a Rhino.Geometry.Mesh instance.

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by sawsan on March 15, 2013 at 7:13am

thank you :)

even if I compile on visual studio I can not ,

my goal is just I wanted to decrease the number of input

Permalink Reply by sawsan on March 20, 2013 at 4:38am

Hi David help me :))

Here I define an input:

  pManager.AddLineParameter ("Line", "elt", "list of Line" GH_ParamAccess.list);

then

protected override void SolveInstance (IGH_DataAccess DA)
         {
             / / Declaration of variable inputs

             List <line> elts = new List <line> ();

  if (! DA.GetData (0, ref elts))
             {
                return;
             }

.....

}

when I assign input component turns red

there is a problem here

  if (! DA.GetData (0, ref elts))
             {
                return;
             }

I don't know what's the problem?

Permalink Reply by David Rutten on March 20, 2013 at 4:57am

if (! DA.GetData (0, ref elts))

If an input has GH_ParamAccess.list access, then you need to use DA.GetDataList() instead of DA.GetData(). The same is true for DA.GetDataTree() and also DA.SetData(), DA.SetDataList() and DA.SetDataTree().

There should have been an error that sort of explained this:

Did you not get this error?

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by David Rutten on March 20, 2013 at 6:58am

Again, if you've set your output parameter access GH_ParamAccess.list, then you cannot use DA.SetData(), you have to use DA.SetDataList().

You can wrap up a two-dimensional array of doubles into a GH_ObjectWrapper, but then you have to change your output access from list to item:

pManager.Register_DoubleParam("table", "A", "tabelts", H_ParamAccess.item);

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by sawsan on March 21, 2013 at 2:55am

David, I can't assigned to the output table.

  output is still empty :/ I don't know what is the problem I even tested it:

tabelts [1,1] = 6;
DA.SetData List (1 tabelts];

but output still empty: (

Permalink Reply by sawsan on March 21, 2013 at 3:50am

blocked :(

 

Permalink Reply by David Rutten on March 21, 2013 at 4:16am

tabelts [1,1] = 6;
DA.SetData List (1 tabelts];

There's 4 bugs in that second line. There's no way that compiled. You can't have spaces in method names, it either has to be

  DA.SetData

or

  DA.SetDataList

but

  DA.SetData List

is not valid C# code. You must use the same brackets, you can't open with a parenthesis and close with a square bracket. Arguments must be separated by commas,

  (1 tabelts];

should be

  (1, tabelts);

If you want to output a multi-dimensional array, do the following:

GH_ObjectWrapper wrap = new GH_ObjectWrapper(tabelts);

DA.SetData(1, wrap);

--

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by sawsan on March 21, 2013 at 4:29am

looooool 

I made these mistakes when I wrote to you  :/

  

I tried this instruction that you gave me :

GH_ObjectWrapper wrap = new GH_ObjectWrapper(tabelts);

DA.SetData(1, wrap);

Permalink Reply by sawsan on March 22, 2013 at 5:52am

Here is the code and the file grasshopper