public void Can_rotate_around_z(double initialX, double initialY, double initialZ, double rotationAngleDegrees, double expectedX, double expectedY, double expectedZ)
{
var point = new Cartesian3D(initialX, initialY, initialZ);
var result = point.RotateZ(Angle.From(Degrees.FromRaw(rotationAngleDegrees)));
Assert.Equal(new Cartesian3D(expectedX, expectedY, expectedZ), result);
}
public static Cartesian2D GetCoordinatesOnFullerProjection(Cartesian3D point)
{
var containingTriangle = FullerTriangle.ForPoint(point);
var triangleCentre = Conversion.Spherical.From(containingTriangle.IcosahedronFace.Centroid);
var vertexPoint = containingTriangle.IcosahedronFace.A
.RotateZ(triangleCentre.Phi)
.RotateY(triangleCentre.Theta);
point = point
.RotateZ(triangleCentre.Phi)
.RotateY(triangleCentre.Theta);
var sphericalVertexPoint = Conversion.Spherical.From(vertexPoint);
var adjustedLongitude = sphericalVertexPoint.Phi - (Angle.From(Degrees.Ninety));
point = point.RotateZ(adjustedLongitude);
var dymaxionPoint = ToDymaxionPoint(point);
return(containingTriangle.Transform(dymaxionPoint));
}