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Fix hang while rendering text on degenerate polygons (#4908)
center-of-gravity calculation was returning NaNs which in turn caused
agg's rasterizer to hang
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tbonfort committed Nov 22, 2015
1 parent ab2a612 commit 3dfc920d6892886d925d3449f6eaddb1e6e8bcb6
Showing 1 changed file with 2 additions and 0 deletions.
@@ -1251,6 +1251,8 @@ static int getPolygonCenterOfGravity(shapeObj *p, pointObj *lp)
sy = s>0?tsy:-tsy;
}
}
if(largestArea == 0) /*degenerate polygon*/
return MS_FAILURE;

lp->x = sx/(6*largestArea);
lp->y = sy/(6*largestArea);

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