Get objects on a specific layer

Replies to This Discussion

Permalink Reply by Marc Syp on September 27, 2010 at 2:14pm

Almost ready to give up because I don't want you to waste time on this when you could be developing GH. :) Feel like I'm almost there though... unfortunately getting errors that the IGH_GeometricGoo and IGH_Goo types are not defined... looked around for something that might work but only found "Grasshopper.Kernel.Types.IGH_DocumentObject"... needless to say that didn't work... :( Are these Goo types custom types that aren't referenced in a standard install?

Sorry,
Marc

Permalink Reply by David Rutten on September 28, 2010 at 1:53am

IGH_Goo and IGH_GeometricGoo are defined in the Grasshopper.Kernel.Types

That's what I get for writing code from the top of my head :)

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

Permalink Reply by Marc Syp on September 28, 2010 at 7:29am

I swear that I tried Grasshopper.Kernel.Types.IGH_Goo and Grasshopper.Kernel.Types.IGH_GeometricGoo yesterday with no luck, but I found them today so I must have been dreaming.

Unfortunately, while the code is clean, it's not working as expected. I'm now getting "Referenced Line-Like Curve" instead of "Line-Like Curve" in my panel but it still does not update my definition automatically when I change the Rhino geometry. It *looks* like it's going to update, in that the GH preview turns off momentarily after I change a referenced object, but it comes back on in the same state. When I hit the recalculate button in GH it updates as it should. :(

Marc

Permalink Reply by David Rutten on September 29, 2010 at 6:55am

Marc,

I'll dig into this in detail. If there's a bug somewhere I'll fix it before I release the next version.

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

Permalink Reply by Marc Syp on October 11, 2011 at 12:53pm

David -

 

A while back you helped me write this code that unfortunately wasn't accomplishing what we had hoped.  I've tried again in the new version and I still can't get my "Read Layer" component to update automatically when geometry is added.  You were going to look into this, way back.  Any ideas?

 

Thanks,

Marc

 

Permalink Reply by Simon Kallioinen on September 29, 2010 at 6:08am

I think this discussion points out some very useful modules that would bu an amazing addition to GH. A module that has a string input (for layer names) and outputs the objects on that layer so that they can be referenced. It would of course be great if they update automatically when new objects are created on that layer. Also a module that outputs all the layer names from the document in a list would be great. It would make the handling of referenced objects much faster.

Permalink Reply by Marc Syp on September 29, 2010 at 6:54am

Simon... If I manage to cajole David into troubleshooting my code until it works, I'll post the component when we're done... :)

I'll give the second component a shot myself after I finish my work this week.

Permalink Reply by Marc Syp on September 29, 2010 at 8:56am

FYI, David, here is my code as it stands now:

Dim layer_index As Int32 = doc.Layers.Find(layer, True)
If (layer_index < 0) Then Return

Dim lay As Rhino.DocObjects.Layer = doc.Layers(layer_index)
Dim objs As Rhino.DocObjects.RhinoObject() = doc.Objects.FindByLayer(lay)
If (objs Is Nothing) Then Return

Dim layerColor As Color = lay.Color
Dim geo As New List(Of Grasshopper.Kernel.Types.IGH_Goo)

For Each obj As Rhino.DocObjects.RhinoObject In objs
Dim ref1 As New DocObjects.ObjRef(obj)
Dim goo As Grasshopper.Kernel.Types.IGH_GeometricGoo = Kernel.GH_Convert.ObjRefToGeometry(ref1)
geo.Add(goo)
Next

L = geo
col = layerColor

Permalink Reply by Nathan Sutherland on December 15, 2010 at 5:49pm

Are there any updates to this? I think a 'set geometry by layer' would be a great Grasshopper addition.

Permalink Reply by Simon Kallioinen on September 30, 2010 at 5:21am

Great! This is what I miss most about Grasshopper.

• ‹ Previous
• 1
• 2
• Next ›
• Page