
About Porting
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I used to calculate old lens as my hobby. I use free demo version of commercial softwares,
they have limitation of number of surfaces or lacking optimization.

I found KDP-2 by Jim Klein, It is free open source software and has full features.

I am mainly using Linux and MacOSX, but KDP-2 is windows version only.

I asked to Jim Klein to port KDP-2, he is kindly gave me a permission to port KDP-2 to
Linux, MacOSX and Android.

KDP-2 is originally written by Intel fortran compiler and Winteracter to make GUI and graph drawing.
I think replace them with free softwares such as gfortran, gnuplot, and Qt tool kit.

I commented out witeracter based codes by “!”, and write code lower case in *.F files.
I made kods.for file for replaced winteracter subroutines and function.

The CUI version of my program (KODS) start to working about one month later from start to porting.
Then I start to make GUI program (KODS_GUI) but I am a beginner of C++ and Qt tool kit,
I borrowed many part of cords from Stackoverflow, Qt centre and many web pages.

Now I can release my codes it took about two years since start to porting.

I really appreciate to Jim Klein, the original author of KDP-2, he encouraged to 
me every time when I talk to him.

2014.9.12       ENDO Michiaki
