integration_tools.solidangle_rectangle_ana

integration_tools.solidangle_rectangle_ana

Compute the solid angle subtended by a rectangle of length a and b as seen by an observer located at (xp,yp,zp). Assume that the center of the rectangle is located at the origin and that the rectangle lie in the (xOy) plane.

The surface integral is computed analytically.

Parameters:

• a (float>0) – rectangle side length
• b (float>0) – rectangle side length (the other one)
• xp (float) – observer position along x axis
• yp (float) – observer position along y axis
• zp (float) – observer position along z axis

Returns:

solid angle real value

Return type:

float>0