Jeffrey Drake wrote: > In my code below, I set a line width of 1 and then when I go to draw a > grid, what appears is an antialiased line of still width of 2. I need a > single pixel, not the ugly 2 width beast as shown before. > > The problem is when drawing the horizontal grid below. > > Any ideas on how to fix this?
Add (or subtract) 0.5 to the x and y of your line endpoints. In cairo, the top left pixel is a rectangle from (0,0) to (1,1). The top left corner is (0,0) and the bottom right corner is (1,1). If you have a 1-pixel wide line from (10,10) to (100,10) only half of that 1-pixel is in the 10th row, the other half being in the 9th row. Cairo renders this by antialiasing, so you get a 2-pixel side 50% gray line rather than the 1-pixel black line you were expecting. -- Tim Evans Applied Research Associates NZ http://www.aranz.com/ _______________________________________________ pygtk mailing list [email protected] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
