wrote:
The flights a recorded a IGC Files which i can process line by line. I need to know if the pilot exited the start cylinder before a defined time and how many cylinders were passed correct. If a cylinder was entered i have to count the distance to the previous cylinder and if not I need to chip in the edge of 90 degrees to the nearest point to the next turnpoint. I hope you understand what I mean.

Does anybody know if such a software allready exists or how to do the computation (PHP or Perl prefered). I allready found some libraries for calculatin the distance but I don't know how to do the 90 degrees calculation.

At the XCSoar / SkyLines project, we're working on tools that do task
scoring of IGC files. All task types that are supported by XCSoar
will eventually be available in SkyLines. And that means there will
be a small command-line program that parses an IGC file, a task file,
and prints the results as JSON, which you can use in whatever
language.

So the way to go is: implement the task rules you need in XCSoar, and
then you get a command-line tool for the offline (non-interactive)
analysis.

http://www.xcsoar.org/
http://skylines.xcsoar.org/

Max