/// <summary>
/// Mutator - Make sure the face index is in range [0,6); UV coordinate normalization handled in UVCoordinate
/// </summary>
private void normalize()
{
if (6 <= face_index_variable || face_index_variable < 0)
{
face_index_variable = (int)PlanetariaMath.modolo_using_euclidean_division(face_index_variable, 6); // HACK: CONSIDER: would anyone ever enter something like 2^31 in here?
}
}
// Methods (non-Public)
/// <summary>
/// Mutator - Wrap UV coordinates so that neither value is outside of [0,1].
/// </summary>
private void normalize()
{
if (data_variable.x < 0 || data_variable.x > 1)
{
data_variable.x = PlanetariaMath.modolo_using_euclidean_division(data_variable.x, 1); // TODO: does this work?
}
else if (data_variable.x == 0)
{
data_variable.x = Precision.just_above_zero;
}
else if (data_variable.x == 1)
{
data_variable.x = Precision.just_below_one;
}
if (data_variable.y < 0 || data_variable.y > 1)
{
data_variable.y = PlanetariaMath.modolo_using_euclidean_division(data_variable.y, 1);
}
else if (data_variable.y == 0)
{
data_variable.y = Precision.just_above_zero;
}
else if (data_variable.y == 1)
{
data_variable.y = Precision.just_below_one;
}
}
/*public static implicit operator OctahedronUVCoordinates(NormalizedSphericalCoordinates spherical)
* {
* return (NormalizedCartesianCoordinates) spherical;
* }*/
/// <summary>
/// Mutator - Wrap elevation and azimuth so they are within [0, PI] and [0, 2*PI) respectively.
/// </summary>
private void normalize() // FIXME: verify - it's been wrong until now at least
{
if (data_variable.x < -Mathf.PI / 2 || data_variable.x > +Mathf.PI / 2)
{
data_variable.x = PlanetariaMath.modolo_using_euclidean_division(data_variable.x + Mathf.PI / 2, 2 * Mathf.PI); // modulo is undefined behavior with negative numbers
if (data_variable.x > Mathf.PI) // result must be positive (due to euclidean division)
{
data_variable.x = 2 * Mathf.PI - data_variable.x;
data_variable.y += Mathf.PI; // going past the pole (to the opposite hemisphere) changes the azimuth
}
data_variable.x -= Mathf.PI / 2;
}
if (data_variable.y < 0 || data_variable.y >= 2 * Mathf.PI)
{
data_variable.y = PlanetariaMath.modolo_using_euclidean_division(data_variable.y, 2 * Mathf.PI);
}
}
