Polygons are broken in some cases, can be fixed by adding 0.01 to coordinates.

[georgy-moshkin]

I can't understand why this is happening. Maybe there is some error in my code, but I do not see it. Here is how problem looks like:

But after replacing pp(2,16) = 0; with pp(2,16) = 0.01; it looks normal.
`
for s = 0:patch.N-1

pp(1,1) = 0;                    pp(2,1) = 0;
pp(1,2) = 0;                    pp(2,2) = len180/2-feed.width*3/2;

pp(1,3) = addLen-feed.width;    pp(2,3) = len180/2-feed.width*3/2;
pp(1,4) = addLen;               pp(2,4) = len180/2-feed.width*3/2+feed.width;

pp(1,5) = addLen;               pp(2,5) = len180/2-feed.width*3/2+feed.width*3-feed.width;
pp(1,6) = addLen-feed.width;    pp(2,6) = len180/2-feed.width*3/2+feed.width*3;

pp(1,7) = 0;                    pp(2,7) = len180/2-feed.width*3/2+feed.width*3;
pp(1,8) = 0;                    pp(2,8) = len180;

pp(1,9)  = -feed.width;         pp(2,9)  = len180;

pp(1,10) = -feed.width;             pp(2,10) = len180/2+feed.width/2+feed.width;
pp(1,11) = -feed.width+feed.width;  pp(2,11) = len180/2+feed.width/2;

pp(1,12) = -feed.width+addLen;      pp(2,12) = len180/2+feed.width/2;
pp(1,13) = -feed.width+addLen;      pp(2,13) = len180/2-feed.width/2;

pp(1,14) = -feed.width+feed.width;  pp(2,14) = len180/2-feed.width/2;
pp(1,15) = -feed.width;             pp(2,15) = len180/2-feed.width/2-feed.width;

pp(1,16) = -feed.width;             pp(2,16) = 0;

for k=1:16
  pp(1,k)=pp(1,k)+feed.width/2;
  pp(2,k)=pp(2,k)+offsY-len180-patch.length/2;
endfor

CSX = AddPolygon( CSX, 'network', 1, 'z', substrate.thickness, pp);

endfor
`