public void GetEdgeLoops()
{
//Arrange
var vertices = new Vector3[]
{
new Vector3(0f, 0f, 0),
new Vector3(0f, 1f, 0),
new Vector3(0f, 1f, 0),
new Vector3(0.5f, 1f, 0),
new Vector3(1f, 1f, 0),
};
var mesh = new Mesh();
mesh.vertices = vertices;
var meshData = new BzMeshData(mesh, null);
var adapter = new BzManualMeshAdapter(vertices);
BzMeshDataEditor editor = new BzMeshDataEditor(meshData, new Plane(), adapter, false);
editor.CapEdges.Add(new IndexVector(0, 1));
editor.CapEdges.Add(new IndexVector(1, 2));
editor.CapEdges.Add(new IndexVector(2, 3));
editor.CapEdges.Add(new IndexVector(3, 4));
//Act
var loops = editor.GetEdgeLoops();
//Assert
Assert.AreEqual(1, loops.Count);
var loop = loops.Single();
CollectionAssert.AreEqual(new[] { 0, 1, 4 }, LoopToArray(loop));
}
void Update()
{
if (Input.GetMouseButtonDown(0))
{
// prepare data
var meshFilter = _target.GetComponent <MeshFilter>();
var meshRenderer = _target.GetComponent <MeshRenderer>();
var mesh = meshFilter.mesh;
Plane plane = new Plane(Vector3.up, 0);
Material[] materials = meshRenderer.sharedMaterials;
Material sectionMaterial = new Material(Shader.Find("Diffuse"));
var adapter = new BzManualMeshAdapter(mesh.vertices);
// slice mesh
var meshDissector = new BzMeshDataDissector(mesh, plane, materials, adapter, BzSliceConfiguration.GetDefault());
meshDissector.DefaultSliceMaterial = sectionMaterial;
SliceResult sliceResult = meshDissector.Slice();
// apply result back to our object
if (sliceResult == SliceResult.Sliced)
{
var result = meshDissector.SliceResultNeg;
meshFilter.mesh = result.GenerateMesh();
meshRenderer.materials = result.Materials;
}
}
}
public void JoinBySameValue()
{
//Arrange
var vertices = new Vector3[]
{
new Vector3(0, 0, 0),
new Vector3(1, 0, 0),
new Vector3(1, 0, 0),
new Vector3(3, 0, 0),
new Vector3(4, 0, 0),
new Vector3(5, 0, 0),
new Vector3(5, 0, 0),
new Vector3(7, 0, 0),
};
var mesh = new Mesh();
mesh.vertices = vertices;
var meshData = new BzMeshData(mesh, null);
var adapter = new BzManualMeshAdapter(vertices);
BzMeshDataEditor editor = new BzMeshDataEditor(meshData, new Plane(), adapter, false);
editor.CapEdges.Add(new IndexVector(2, 3));
editor.CapEdges.Add(new IndexVector(0, 1));
editor.CapEdges.Add(new IndexVector(4, 5));
editor.CapEdges.Add(new IndexVector(5, 6));
editor.CapEdges.Add(new IndexVector(6, 7));
//Act
var loops = editor.GetEdgeLoopsByIndex();
Assert.AreEqual(3, loops.Count);
editor.EdgeLoops_JoinBySameValue(loops);
//Assert
Assert.AreEqual(2, loops.Count);
var loop1 = loops.Single(loop => loop.first.value == 0 | loop.last.value == 0);
var loop2 = loops.Single(loop => loop.first.value == 4 | loop.last.value == 4);
Assert.IsTrue(Enumerable.SequenceEqual(new[] { 0, 1, 3 }, LoopToArray(loop1)));
Assert.IsTrue(Enumerable.SequenceEqual(new[] { 4, 5, 6, 7 }, LoopToArray(loop2)));
}
