Line pattern anti-aliasing display method

The invention discloses a line pattern anti-aliasing display method, and belongs to the technical field of graphical display. According to the line pattern anti-aliasing display method, improvement is carried out on an existing anti-aliasing display method based on an area sampling principle, regarding each intersection point of an ideal pattern and the pixel row or the pixel column of a displayer, four pixels closest to the intersection point are selected from the corresponding pixel row or the corresponding pixel column, the display parameter weights of the four pixels are determined according to the distance between the four pixels and an ideal point, the weight is larger when the pixel is closer to the ideal point, the weight is smaller when the pixel is further away from the ideal point, and therefore, the pattern is made to have smooth transition, and lines cannot be displayed to look too thick. The line pattern anti-aliasing display method is suitable for the line patterns such as oblique lines with any angle, circle and arc. Twist phenomena when small angle display is carried out can be eliminated effectively, a display effect is smooth, and the display quality of patterns is improved obviously.