Hello, everyone: I have been really struggling with a PIL issue, and I'm hoping someone else has experienced the behavior I am seeing.
My goal is to use ImageDraw().polygon to produce _only_ the filling,
and to draw the border of the polygon in either transparent or in the
background color.
When I attempt to do this, an odd extra line of pixels appears outside
the boundary.
The code below draws a simple polygon with a white border and black
fill, which works as expected.
The second code draws the same polygon with a black border and a white
fill. my expected result is to get a white triangle that 'fits inside'
the first one. It almost works, but there is an extra line of pixels
along the upper-right border.
The resulting pictures are attached.
Here is my code:
from PIL import Image,ImageDraw
if __name__=='__main__':
i = Image.new('L',(50,50), 0 );
ImageDraw.Draw(i).polygon([(10,10),(20,20),(10,20)
],outline=255, fill=0);
i.save("c:\\temp\\freak1.bmp",format="bmp");
i = Image.new('L',(50,50), 0 );
ImageDraw.Draw(i).polygon([(10,10),(20,20),(10,20) ],outline=0,
fill=255);
i.save("c:\\temp\\freak2.bmp",format="bmp");
Can anyone help me understand what i'm doing wrong? Help is much appreciated!
Python 2.6.6, Windows, PIL version 1.1.7
<<attachment: freak2.bmp>>
<<attachment: freak1.bmp>>
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