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make sure we only add valid meshes while ungrouping

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issue: MatterHackers/MCCentral#5800
Ungrouping certain models crashes MC
This commit is contained in:
LarsBrubaker 2019-09-17 22:39:05 -07:00
parent 619bd1af7b
commit 7b16788d43
3 changed files with 14 additions and 3 deletions
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13
MatterControlLib/PartPreviewWindow/CreateDiscreteMeshes.cs
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@ -30,6 +30,7 @@ either expressed or implied, of the FreeBSD Project.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading;
using ClipperLib;
using MatterHackers.Agg.Image;
@ -103,7 +104,17 @@ namespace MatterHackers.MatterControl
}
}
discreetVolumes.Add(meshFromCurrentVolume);
meshFromCurrentVolume.CleanAndMerge();
var bounds = meshFromCurrentVolume.GetAxisAlignedBoundingBox();
if (meshFromCurrentVolume.Vertices.Count > 2
&& (bounds.XSize > .5
|| bounds.YSize > .5
|| bounds.ZSize > .5)
&& meshFromCurrentVolume.Faces.Any(f => f.GetArea(meshFromCurrentVolume) > .1))
{
discreetVolumes.Add(meshFromCurrentVolume);
}
meshFromCurrentVolume = null;
}