This paper describes following several problems. The first one is that two-d imension plane can be used to express straight three-dimension stereogram. Another one is that we can use projecting conyerse formula to draw stereogram. This paper also presents data structure and calculus which can etiminate hidden-line and graphical example. A very simple data relation table has been listed in thispaper

specially

author discusses a technigue of eliminating hidde-line cleanly

so it is easy to understand

progra and apply.