Hello,
The following code was working fine prior to the 10.10.23 Beta Update.
Now the code returns Null/Empty data output instead of the expected breps.
Graph Space:
Copy/Paste of the code works as expected in the older R7 C# component.
Please see the attached .gh file and let me know if there is anything I am doing wrong since the update regarding C# handling of outputs?
Thank you for your help!
script_component_c#_output_bug_01a.gh (20.0 KB)
Full Code:
// Grasshopper Script Instance
using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using Rhino;
using Rhino.Geometry;
using Grasshopper;
using Grasshopper.Kernel;
using Grasshopper.Kernel.Data;
using Grasshopper.Kernel.Types;
using System.Linq;
public class Script_Instance : GH_ScriptInstance
{
private void RunScript(DataTree<Brep> A, DataTree<Brep> B, out object R)
{
//Assign Tooltips
Component.Name = "Solid Intersection (Multi-Threaded)";
Component.NickName = "SIntMT";
Component.Description = "A multi-threaded version of the Solid Intersection component";
Component.Params.Input[0].Name = "Breps A";
Component.Params.Input[0].NickName = "A";
Component.Params.Input[0].Description = "First Set Of Breps";
Component.Params.Input[1].Name = "Breps B";
Component.Params.Input[1].NickName = "B";
Component.Params.Input[1].Description = "Second Set Of Breps";
Component.Params.Output[0].Name = "Result";
Component.Params.Output[0].NickName = "R";
Component.Params.Output[0].Description = "Solid Intersection Result";
/////////////////////////////
//written by Brian Washburn//
//washburnarchitecture.com //
//2023.09.08 //
/////////////////////////////
////////////////////////////////
//Modified by Michael Vollrath//
//toyblock.co //
//2023.09.23 //
////////////////////////////////
//Add Component Warnings Mimicking Native Component
bool hasWarnings = false; // Flag to track if any warnings have been issued
// Check if input A is null or empty
if (A == null || A.DataCount == 0)
{
Component.AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Input A Failed To Collect Data");
hasWarnings = true;
}
// Check if input B is null or empty
if (B == null || B.DataCount == 0)
{
Component.AddRuntimeMessage(GH_RuntimeMessageLevel.Warning, "Input B Failed To Collect Data");
hasWarnings = true;
}
// If any warnings were issued, set R to null and return
if (hasWarnings)
{
R = null;
return;
}
double tolerance = Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance;
var mainBrepsMT = new System.Collections.Concurrent.ConcurrentDictionary<GH_Path,List<Rhino.Geometry.Brep>> ();
int totalMaxConcurrancy = System.Environment.ProcessorCount - 1;
this.Component.Message = totalMaxConcurrancy + " Threads";
//start of the parallel engine
System.Threading.Tasks.Parallel.ForEach(A.Paths, new System.Threading.Tasks.ParallelOptions
{ MaxDegreeOfParallelism = totalMaxConcurrancy},
pth => {
mainBrepsMT[pth] = Brep.CreateBooleanIntersection(A.Branch(pth), B.Branch(pth), tolerance).ToList();
});
//end of the parallel engine
//convert dictionaries to regular old data trees
DataTree<Rhino.Geometry.Brep> mainBreps = new DataTree<Rhino.Geometry.Brep>();
foreach(KeyValuePair<GH_Path,List<Rhino.Geometry.Brep>> p in mainBrepsMT)
{
mainBreps.AddRange(p.Value, p.Key);
}
R = mainBreps;
// Iterate through the branches of mainBreps and print the number of intersections in each branch
foreach (var path in mainBreps.Paths)
{
Console.WriteLine($"Branch {path}: {mainBreps.Branch(path).Count} intersections");
Console.WriteLine("Type of mainBreps: " + mainBreps.GetType().FullName);
}
}
}
