Abstract
In this paper, two implicit curve mapping algorithm, corner algorithm and interval algorithm are introduced. and it also compares two of them. As a classical method of drawing algorithm , Corner judgement is little amount of computing and the advantage of low complexity. In the paper ellipse and trefoil are programmed in VC++. Interval algorithm mainly uses that whether the curve passes the pixels innovatory. And compared with corner judgement , interval algorithm has some advantage and shortage. The article will also improve on the shortage of the interval algorithm .On the base of this interval algorithm the paper used to write programs, and carry out some of the graphics.
Keywords： Interval Algorithm; ur corners judgment Algorithm; plicit curves
