How to find contour lines for Appel's Hidden Line Removal Algorithm?

Has anyone else tried the Neways product line? I have tried many lines over 50 years, and find this the best?

• I am a cancer survivor, but lost my Mom to cancer , when she was just 56, after she had worked for Revlon cosmetics for 20 years putting toxic cosmetics on women across the US. I have been researching for over 27 years why there is so much cancer, and found a company, endorsed by Dr. Samuel Epstein (preventcancer.com) called Neways and have been using these products for over 14 years, and find no harmful chemicals or carcinogens in any of the 350 products in the line. Safe, healthy, effective and affordable. A healthy way to live at positivehealthyliving.ineways.com

• Answer:

  I am a senior citizen and never liked any skin care products that I have tried over the years. When I found something that I liked how it looked or felt, I would find out that it was harmfull to me. Therefore I never got into using any skin products or even cosmetics until now! Neways products rock! Safe and effective! ~Marlene Hepp California