Polygon Crest Help by Captain YS (Ver. 20140415)

Polygon Crest is a fre and open-source program.  Therefore, you can use it for free of charge.  However, I appreciate if you donate some money for supporting the development.  For making donation, please send some money via PayPal using the following button.

I will use the donated money for upgrading my developing environment, buying books for learning new programming techniques, maintaining and adding contents in YSFLIGHT.COM.  Thank you for your support!


  1. Why Re-Inventing a Polygon Editor?
  2. Basics
  3. Getting Started