« Return to Thread: what is the parameter of function line3() in class "renderer_outline_image" mean?

what is the parameter of function line3() in class "renderer_outline_image" mean?

by jjyy :: Rate this Message:

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Hello every body!

I am a new hand of graphics.
Look at this function in "agg_renderer_outline_image.h"

      void line3(const line_parameters& lp,
                   int sx, int sy, int ex, int ey)

this function is used to render a line segment.

I really can not understand the parameter "sx","sy","ex","ey".

what's the mean?

Thanks a lot.

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 « Return to Thread: what is the parameter of function line3() in class "renderer_outline_image" mean?