chord_to_cartesian¶
- halotools.utils.chord_to_cartesian(theta, radians=True)[source]¶
Calculate chord distance on a unit sphere given an angular distance between two points.
- Parameters:
- thetaarray
angular distance
- radiansbool, optional
If True, input is interpreted as radians. If False, input in degrees. Default is True.
- Returns:
- Carray
chord distance
Examples
>>> theta = np.linspace(0, 1, 100) >>> chord_distance = chord_to_cartesian(theta)