Dear Friends,<br> I am very newbie to projection concepts. I am in need to write the cs2cs tool in php/perl language to convert the coordinates from source epsg-2393 to target epsg-4326. Initially i tried to understand the cs2cs tool code. I can't understand the whole structure of the code , as it contains more mathematical functions. So i have started to trace the code linebyline using anjuta debugger. But i dont think this one is the correct way. As the code contains more 'if' checks i may miss some flow of the code.<br>
<br> Please give some guide lines to understand the concept of cs2cs tool. Where can i get the direct mathematic formulas? So i can directly code it on php or perl without looking the C code.<br><br>Thanks in Advance,<br>
Bala<br><br>