public void GetSurfaceArea()
{
// Arrange
IMeshConverter meshConverter = new ObjMeshConverter();
IMesh mesh = meshConverter.FromStream(new FileStream(@"Resources\cube2.obj", FileMode.Open));
// Act
float surfaceArea = mesh.GetSurfaceArea();
// Assert
Assert.AreEqual(24f, surfaceArea);
}
public void GetVolume()
{
// Arrange
IMeshConverter meshConverter = new ObjMeshConverter();
IMesh mesh = meshConverter.FromStream(new FileStream(@"Resources\cube2.obj", FileMode.Open));
// Act
float volume = mesh.GetVolume();
// Assert
Assert.AreEqual(8f, volume);
}
public void FromStream()
{
// Arrange
IMeshConverter meshConverter = new ObjMeshConverter();
Stream stream = new FileStream(@"Resources\cube.obj", FileMode.Open);
// Act
IMesh mesh = meshConverter.FromStream(stream);
// Assert
List <Vertex> geometricVertices = mesh.GeometricVertices.ToList();
Assert.AreEqual(8, geometricVertices.Count);
Assert.AreEqual(0.0f, geometricVertices.ElementAt(3).X);
Assert.AreEqual(1.0f, geometricVertices.ElementAt(3).Y);
Assert.AreEqual(1.0f, geometricVertices.ElementAt(3).Z);
Assert.IsFalse(mesh.TextureVertices.Any());
List <Vector> vertexNormals = mesh.VertexNormals.ToList();
Assert.AreEqual(6, vertexNormals.Count);
Assert.AreEqual(0.0f, vertexNormals.ElementAt(1).I);
Assert.AreEqual(0.0f, vertexNormals.ElementAt(1).J);
Assert.AreEqual(-1.0f, vertexNormals.ElementAt(1).K);
List <Face> faces = mesh.Faces.ToList();
Assert.AreEqual(12, faces.Count);
List <FaceElement> faceElements = faces[9].FaceElements.ToList();
Assert.AreEqual(3, faceElements.Count);
Assert.AreEqual(mesh.GeometricVertices.ElementAt(5), faceElements[1].V);
Assert.IsNull(faceElements[1].Vt);
Assert.AreEqual(mesh.VertexNormals.ElementAt(3), faceElements[1].Vn);
}
