Pipeline by selected objects?

Grasshopper
1

Hi,

In Grasshopper, instead of using Pipeline to get the objects from a layer is it possible to use something to get the objects that are currently selected and have them as input?

Thank you!

2

SelectedObjects
SelectedObjects900×490 563 KB 

private void RunScript(ref object A)
  {
    if(!_init)
    {
      Rhino.RhinoDoc.SelectObjects -= RhinoDocOnSelectObjects;
      Rhino.RhinoDoc.SelectObjects += RhinoDocOnSelectObjects;
      Rhino.RhinoDoc.DeselectObjects -= RhinoDocOnSelectObjects;
      Rhino.RhinoDoc.DeselectObjects += RhinoDocOnSelectObjects;
      Rhino.RhinoDoc.DeselectAllObjects -= RhinoDocOnDeselectAllObjects;
      Rhino.RhinoDoc.DeselectAllObjects += RhinoDocOnDeselectAllObjects;
      _init = true;
    }
    A = objs;
  }

  // <Custom additional code> 
  private bool _init = false;
  List<GeometryBase> objs = new List<GeometryBase>();
  private void RhinoDocOnSelectObjects(object sender, RhinoObjectSelectionEventArgs e)
  {
    foreach(var rhObj in RhinoDoc.ActiveDoc.Objects.GetSelectedObjects(false, false))
      objs.Add(rhObj.Geometry);
    Component.ExpireSolution(true);
  }
  private void RhinoDocOnDeselectAllObjects(object sender, RhinoDeselectAllObjectsEventArgs e)
  {
    objs.Clear();
    Component.ExpireSolution(true);
  }

SelectedObjects.gh (13.3 KB)

3

Wow, this is so useful for quick geometry evaluation, checking areas, sketching. And fun to have such instant input.
Should be part of the Pipeline component. In GH2 maybe?

4

Fantastic solution!
Anyone knows how to translate this to python SDK mode?

5

Yes, I can only state once more that Pipeline Selected could be very useful, kind regards!

6

Could someone please change this code so it works in R8 and outputs GUIDs of selected objects?

7

This seems to work

using System;
using System.Collections;
using System.Collections.Generic;

using Rhino;
using Rhino.Geometry;

using Grasshopper;
using Grasshopper.Kernel;
using Grasshopper.Kernel.Data;
using Grasshopper.Kernel.Types;
using Rhino.DocObjects;
using System.Linq;

/// <summary>
/// This class will be instantiated on demand by the Script component.
/// </summary>
public class Script_Instance : GH_ScriptInstance
{
  private void Print(string text) { }
  private void Print(string format, params object[] args) { }
  private void Reflect(object obj) { }
  private void Reflect(object obj, string method_name) { }

  private readonly RhinoDoc RhinoDocument;
  private readonly GH_Document GrasshopperDocument;
  private readonly IGH_Component Component;
  private readonly int Iteration;

  private void RunScript(ref object A)
  {
    if (!_init)
    {
      Rhino.RhinoDoc.SelectObjects -= RhinoDocOnSelectObjects;
      Rhino.RhinoDoc.SelectObjects += RhinoDocOnSelectObjects;

      Rhino.RhinoDoc.DeselectObjects -= RhinoDocOnSelectObjects;
      Rhino.RhinoDoc.DeselectObjects += RhinoDocOnSelectObjects;

      Rhino.RhinoDoc.DeselectAllObjects -= RhinoDocOnDeselectAllObjects;
      Rhino.RhinoDoc.DeselectAllObjects += RhinoDocOnDeselectAllObjects;

      _init = true;
    }

    A = selectedGuids;
  }

  // <Custom additional code> 
  bool _init = false;
  List<Guid> selectedGuids = new List<Guid>();

  private void RhinoDocOnSelectObjects(object sender, RhinoObjectSelectionEventArgs e)
  {
    foreach (var rhObj in RhinoDoc.ActiveDoc.Objects.GetSelectedObjects(false, false))
    {
      Guid id = rhObj.Id;
      if (!selectedGuids.Contains(id))
        selectedGuids.Add(id);
    }

    Component.ExpireSolution(true);
  }

  private void RhinoDocOnDeselectAllObjects(object sender, RhinoDeselectAllObjectsEventArgs e)
  {
    selectedGuids.Clear();
    Component.ExpireSolution(true);
  }
  // </Custom additional code> 
}