Color text?

Replies to This Discussion

Permalink Reply by Pep Tornabell on December 28, 2009 at 3:15am

Sorry to insist... theres any way of coloring text in GH?

many thanks in advance

Permalink Reply by David Rutten on December 28, 2009 at 4:25am

Hi Pep,

I think you're out of luck. The tag components don't allow colour overrides.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Pep Tornabell on December 28, 2009 at 5:48am

Ok, thanks, is good to know.

Permalink Reply by Pep Tornabell on December 28, 2009 at 5:55am

Hey David, another question related. Having a list of objects (circles) from rhino, each with different color. How can I get the color of each circle to apply it later to the text .

I have very little scripting skills, and I thought there should be something like .GetColor or .getAttibutes.color.

Any help on thet would be appreciated

thanks

Permalink Reply by David Rutten on December 28, 2009 at 7:03am

Pretty tricky to do it right. Object colour can come from multiple sources. Typically objects derive their display colour from the layer they are in. Sometimes they derive the colour from the parent object, and sometimes they override the colour themselves.

You have to dig through the MRhinoObjectAttributes class that comes with every MRhinoObject. Find the ColourSource() property and then extract the appropriate colour.

If you know you'll only deal with objects which have per-object colours, then it becomes somewhat easier:

Dim obj As RMA.Rhino.MRhinoObject =
Dim color As RMA.OpenNURBS.IOnColor = obj.Attributes().m_color


--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Pep Tornabell on December 28, 2009 at 9:52am

Hi David, many thanks for your time and help. I kind of understand the procedure, but as I said, scripting is not my best quality, and it does not output anything... As input I have a list of cicles created in rhino with 4 different colors. As output I would like to have:

a// 4 lists, each with all the circles with the same color

or

b// a list of the colours of the circles.

Thanks in advance, and waiting to finish my sutides (very soon) to start learning programming more seriuosly :)

Thanks and enjoy this days,

Permalink Reply by David Rutten on December 28, 2009 at 11:36am

Ok, you have to get the GUID of the object you're referencing, otherwise you won't be able to retrieve the Attributes of the object in question:

In the image, the rectangles are Rhino curves and the spheres are made by Grasshopper.

The code inside the VB component is:

Dim obj_id As Guid = DirectCast(id, Guid)
Dim obj_ref As New MRhinoObjRef(obj_id)
Dim col As IOnColor = obj_ref.Object().Attributes().m_color

A = Color.FromArgb(col.Red(), col.Green(), col.Blue())

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Pep Tornabell on December 28, 2009 at 12:26pm

Thank yuo very much David, no way I would figure it out myself. Many THANKS