mod_cg3_points Module Reference

Functions/Subroutines
pure double precision function, dimension(3)	cg3_cross_product (p1, p2)
	Compute the cross product of two points.
pure subroutine	cg3_direction_to_spherical_angles (direction, angles)
	Compute the spherical angles from a direction in Cartesian coordinates.
pure subroutine	cg3_spherical_angles_to_direction (angles, direction)
	Compute the direction in Cartesian coordinates from spherical angles.

Function/Subroutine Documentation

cg3_direction_to_spherical_angles()

pure subroutine mod_cg3_points::cg3_direction_to_spherical_angles	(	double precision, dimension(3), intent(in)	direction,
		double precision, dimension(2), intent(out)	angles )

Compute the spherical angles from a direction in Cartesian coordinates.

Parameters

[in]	direction	unit vector
[out]	angles	spherical angles (θ,φ)

cg3_spherical_angles_to_direction()

pure subroutine mod_cg3_points::cg3_spherical_angles_to_direction	(	double precision, dimension(2), intent(in)	angles,
		double precision, dimension(3), intent(out)	direction )

Compute the direction in Cartesian coordinates from spherical angles.

Parameters

[in]	angles	spherical angles (θ,φ)
[out]	direction	resulting unit vector