1 files changed, 3 insertions, 2 deletions
diff --git a/gerber/cam.py b/gerber/cam.py
index 31b6d2f..91ffb9a 100644
--- a/gerber/cam.py
+++ b/gerber/cam.py
@@ -253,8 +253,9 @@ class CamFile(object):
         filename : string <optional>
             If provided, save the rendered image to `filename`
         """
-        bounds = [tuple([x * 1.2, y*1.2]) for x, y in self.bounds]
-        ctx.set_bounds(bounds)
+        if ctx.invert:
+            ctx._paint_inverted_layer()
+            
         for p in self.primitives:
             ctx.render(p)
         if filename is not None: