CL_gm_inters3dConesSa

Description

• Computes the solid angle of the intersection of two cones.

  The cones are defined by their half angles alpha1 and alpha2, and the angular separation between their axes alpha.

  

• Notes:

  - The half angles of the cones should be in [0,pi/2].

  If an half-angle equals to pi/2 then the cone actually is an half-space.

  - The angular separation between axes of the cones should be in [0,pi].

Parameters

alpha:

Angular separation between axes of the cones (1xN or 1x1)

alpha1:

Half angle of first cone (1xN or 1x1)

alpha2:

Half angle of second cone (1xN or 1x1)

sang:

Solid angle of the intersection of the cones (1xN)

Authors

• CNES - DCT/SB

Examples

// Intersection of two cones alpha = 0.15; alpha1 = 0.1; alpha2 = 0.2; sang = CL_gm_inters3dConesSa(alpha,alpha1,alpha2);