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Made twist default to using the center of the enclosing circle.

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This commit is contained in:
LarsBrubaker 2020-02-23 22:44:43 -08:00
parent 4b132c46ca
commit 1520c913ad
1 changed files with 30 additions and 2 deletions
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32
MatterControlLib/DesignTools/Operations/TwistObject3D.cs
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@ -82,7 +82,9 @@ namespace MatterHackers.MatterControl.DesignTools
public void DrawEditor(InteractionLayer layer, List<Object3DView> transparentMeshes, DrawEventArgs e, ref bool suppressNormalDraw)
{
var sourceAabb = this.SourceContainer.GetAxisAlignedBoundingBox();
var center = sourceAabb.Center + new Vector3(RotationOffset);
var rotationCenter = SourceContainer.GetSmallestEnclosingCircleAlongZ().Center + RotationOffset;
var center = new Vector3(rotationCenter.X, rotationCenter.Y, sourceAabb.Center.Z);
// render the top and bottom rings
layer.World.RenderCylinderOutline(this.WorldMatrix(), center, 1, sourceAabb.ZSize, 15, Color.Red, Color.Red, 5);
@ -172,7 +174,8 @@ namespace MatterHackers.MatterControl.DesignTools
cuts.Add(bottom - cutSize + (size * ratio));
}
var rotationCenter = new Vector2(sourceAabb.Center) + RotationOffset;
// get the rotation from the center of the circumscribed circle of the convex hull
var rotationCenter = SourceContainer.GetSmallestEnclosingCircleAlongZ().Center + RotationOffset;
var twistedChildren = new List<IObject3D>();
@ -291,4 +294,29 @@ namespace MatterHackers.MatterControl.DesignTools
}
}
}
public static class ObjectCircleExtensions
{
public static Circle GetSmallestEnclosingCircleAlongZ(this IObject3D object3D)
{
var visibleMeshes = object3D.VisibleMeshes().Select(vm => (source: vm, convexHull: vm.Mesh.GetConvexHull(false))).ToList();
IEnumerable<Vector2> GetVertices()
{
foreach (var visibleMesh in visibleMeshes)
{
var matrix = visibleMesh.source.WorldMatrix(object3D);
foreach (var positon in visibleMesh.convexHull.Vertices)
{
var transformed = positon.Transform(matrix);
yield return new Vector2(transformed.X, transformed.Y);
}
}
}
var circle = SmallestEnclosingCircle.MakeCircle(GetVertices());
return circle;
}
}
}