Page History

Heikki J�rvinenJärvinen, Sami Saarinen, Per Und�n.Undén

It describes the blacklist language as well as its usage in IFS

...

1. Convert all degrees to radians
2. Calculate angle distance (in radians) relative to the center point

   obsdeg = acos( cos(reflat) cos(LAT) cos(LON-reflon) + 
                  sin(reflat) sin(LAT) )

3. Return one from rad, if

   Image Removed

   obsdeg ≤ refdeg, otherwise zero.

2.5 Actions

Finally, perhaps the most important function fail(). It returns information back to the application.

...