Using Point of Intersection Coordinate Straight Line Production Algorithm

In order to improve the computer graphics cathetus production algorithm the efficiency,the use grid middle line and draws the straight line the point of intersection to decide in each line of grids must draw the picture element,this article proposed one kind simultaneously starts the picture straight line algorithm according to the straight line symmetry from the straight line beginning and the end point.The experimental result indicated that,The new algorithm has with the Bresenham algorithm same precision,also the production speed is quicker.