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Fixing issue with union on back to back faces

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This commit is contained in:
LarsBrubaker 2022-05-12 08:46:11 -07:00
parent a8ce34c729
commit 2f3888137c
3 changed files with 69 additions and 4 deletions
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67
Tests/MatterControl.Tests/MatterControl/InteractiveSceneTests.cs
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@ -36,9 +36,11 @@ using MatterHackers.MatterControl.DesignTools;
using MatterHackers.MatterControl.DesignTools.Operations;
using MatterHackers.MatterControl.PartPreviewWindow.View3D;
using MatterHackers.MatterControl.Tests.Automation;
using MatterHackers.PolygonMesh;
using MatterHackers.VectorMath;
using NUnit.Framework;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MatterControl.Tests.MatterControl
@ -280,6 +282,8 @@ namespace MatterControl.Tests.MatterControl
[Test, Category("InteractiveScene")]
public async Task SubtractTests()
{
StartupMC();
// Subtract has correct number of results
{
var root = new Object3D();
@ -287,7 +291,7 @@ namespace MatterControl.Tests.MatterControl
var cubeB = await CubeObject3D.Create(20, 20, 20);
var offsetCubeB = new TranslateObject3D(cubeB, 10);
var subtract = new SubtractObject3D();
var subtract = new SubtractObject3D_2();
subtract.Children.Add(cubeA);
subtract.Children.Add(offsetCubeB);
subtract.SelectedChildren.Add(offsetCubeB.ID);
@ -564,6 +568,67 @@ namespace MatterControl.Tests.MatterControl
Assert.IsTrue(rootAabb.Equals(new AxisAlignedBoundingBox(new Vector3(-10, -10, -10), new Vector3(10, 10, 11)), .01));
}
[Test]
public void CombineTests2()
{
// overlaping results in simple new mesh
{
var meshA = PlatonicSolids.CreateCube(10, 10, 10);
meshA.Translate(0, 0, 0);
var meshB = PlatonicSolids.CreateCube(10, 10, 10);
meshB.Translate(0, 5, 0);
var mesh = Object3D.CombineParticipants(null,
new IObject3D[]
{
new Object3D() { Mesh = meshA },
new Object3D() { Mesh = meshB },
},
new CancellationToken());
Assert.AreEqual(12, mesh.Faces.Count());
var aabb = mesh.GetAxisAlignedBoundingBox();
Assert.AreEqual(15, aabb.YSize, .001);
}
// multiple overlaping faces all combine
{
var meshA = PlatonicSolids.CreateCube(10, 10, 10);
meshA.Translate(0, 0, 0);
var meshB = PlatonicSolids.CreateCube(10, 10, 10);
meshB.Translate(0, -3, 0);
var meshC = PlatonicSolids.CreateCube(10, 10, 10);
meshC.Translate(0, 3, 0);
var mesh = Object3D.CombineParticipants(null,
new IObject3D[]
{
new Object3D() { Mesh = meshA },
new Object3D() { Mesh = meshB },
new Object3D() { Mesh = meshC },
},
new CancellationToken());
Assert.AreEqual(12, mesh.Faces.Count());
var aabb = mesh.GetAxisAlignedBoundingBox();
Assert.AreEqual(16, aabb.YSize, .001);
}
// a back face against a front face, both are removed
{
var meshA = PlatonicSolids.CreateCube(10, 10, 10);
meshA.Translate(0, -5, 0);
var meshB = PlatonicSolids.CreateCube(10, 10, 10);
meshB.Translate(0, 5, 0);
var mesh = Object3D.CombineParticipants(null,
new IObject3D[]
{
new Object3D() { Mesh = meshA },
new Object3D() { Mesh = meshB },
},
new CancellationToken());
Assert.AreEqual(12, mesh.Faces.Count());
var aabb = mesh.GetAxisAlignedBoundingBox();
Assert.AreEqual(15, aabb.YSize, .001);
}
}
[Test, Category("InteractiveScene")]
public async Task AlignObjectHasCorrectPositionsOnXAxis()
{