@@ -1063,7 +1063,7 @@ class XDotParser(DotParser):

             if not bb:

                 return

-            xmin, ymin, xmax, ymax = map(int, bb.split(","))

+            xmin, ymin, xmax, ymax = map(float, bb.split(","))

             self.xoffset = -xmin

             self.yoffset = -ymax