Hey Guys,

I'm trying to implement a box filter line drawing algorithm and i'm

having some difficulties. basically my problem is with finding the

area under a 1-pixel wide line. usually in the worst case it cover 3

adjacent pixels at given x coordinate that is on the line segment.

i'm wondering if there is a general formula based on the angle the

line intersects the pixels giving the area.

maybe i'm way off track here.. can anyone help?

another thought i had was to draw line segments between all the

intersection points of the 1-pixel wide line and a given x value..

this would split up the area into triangles.. and then using the cross

product to calculate the areas and add them up,, but this seems to me

a wasteful way of doing it..

any input would be greatly appreciated..

thanks