public static ScalarField <Face> XDependentScalarField(IPolyhedron polyhedron, double average, double deviation)
{
var normals = FaceIndexedTableFactory.Normals(polyhedron);
var values = polyhedron.Faces.Select(face => average + deviation * normals[polyhedron.IndexOf(face)][0]).ToArray();
return(new ScalarField <Face>(polyhedron.IndexOf, values));
}
public void Normals_OnACube_ShouldCalculateTheCorrectNormals
(IPolyhedron polyhedron)
{
// Fixture setup
var expected = new List <Vector>
{
VectorUtilities.NewVector(1, 0, 0),
VectorUtilities.NewVector(-1, 0, 0),
VectorUtilities.NewVector(0, 1, 0),
VectorUtilities.NewVector(0, -1, 0),
VectorUtilities.NewVector(0, 0, 1),
VectorUtilities.NewVector(0, 0, -1)
};
// Exercise system
var actual = FaceIndexedTableFactory.Normals(polyhedron);
// Verify outcome
TestUtilities.WriteExpectedAndActual(expected, actual);
Assert.True(TestUtilities.UnorderedEquals(expected, actual, TestUtilities.RelativeAccuracy));
// Teardown
}
