matplotlib
diff --git a/‎lib/matplotlib/image.py‎
Lines changed: 6 additions & 3 deletions b/‎lib/matplotlib/image.py‎
Lines changed: 6 additions & 3 deletions
diff --git a/‎lib/matplotlib/tests/baseline_images/test_image/bbox_image_inverted.pdf‎
9.72 KB b/‎lib/matplotlib/tests/baseline_images/test_image/bbox_image_inverted.pdf‎
9.72 KB
diff --git a/‎lib/matplotlib/tests/baseline_images/test_image/bbox_image_inverted.png‎
19.2 KB b/‎lib/matplotlib/tests/baseline_images/test_image/bbox_image_inverted.png‎
19.2 KB
diff --git a/‎lib/matplotlib/tests/test_image.py‎
Lines changed: 20 additions & 0 deletions b/‎lib/matplotlib/tests/test_image.py‎
Lines changed: 20 additions & 0 deletions
diff --git a/‎src/_image.cpp‎
Lines changed: 6 additions & 0 deletions b/‎src/_image.cpp‎
Lines changed: 6 additions & 0 deletions
@@ -1154,8 +1154,8 @@ def make_image(self, renderer, magnification=1.0):
         im.set_resample(self._resample)
 
         l, b, r, t = self.get_window_extent(renderer).extents  # bbox.extents
-        widthDisplay = round(r) - round(l)
-        heightDisplay = round(t) - round(b)
+        widthDisplay = abs(round(r) - round(l))
+        heightDisplay = abs(round(t) - round(b))
         widthDisplay *= magnification
         heightDisplay *= magnification
 
@@ -1183,11 +1183,14 @@ def draw(self, renderer, *args, **kwargs):
         # todo: we should be able to do some cacheing here
         image_mag = renderer.get_image_magnification()
         im = self.make_image(renderer, image_mag)
-        l, b, r, t = self.get_window_extent(renderer).extents
+        x0, y0, x1, y1 = self.get_window_extent(renderer).extents
         gc = renderer.new_gc()
         self._set_gc_clip(gc)
         gc.set_alpha(self.get_alpha())
         #gc.set_clip_path(self.get_clip_path())
+
+        l = np.min([x0, x1])
+        b = np.min([y0, y1])
         renderer.draw_image(gc, round(l), round(b), im)
         gc.restore()
 
 
@@ -6,6 +6,8 @@
 import numpy as np
 
 from matplotlib.testing.decorators import image_comparison, knownfailureif, cleanup
+from matplotlib.image import BboxImage, imread
+from matplotlib.transforms import Bbox
 from matplotlib import rcParams
 import matplotlib.pyplot as plt
 from nose.tools import assert_raises
@@ -315,6 +317,24 @@ def test_rasterize_dpi():
     rcParams['savefig.dpi'] = 10
 
 
+@image_comparison(baseline_images=['bbox_image_inverted'],
+                  extensions=['png', 'pdf'])
+def test_bbox_image_inverted():
+    # This is just used to produce an image to feed to BboxImage
+    fig = plt.figure()
+    axes = fig.add_subplot(111)
+    axes.plot([1, 2, 3])
+
+    im_buffer = io.BytesIO()
+    fig.savefig(im_buffer)
+    im_buffer.seek(0)
+    image = imread(im_buffer)
+
+    bbox_im = BboxImage(Bbox([[100, 100], [0, 0]]))
+    bbox_im.set_data(image)
+    axes.add_artist(bbox_im)
+
+
 if __name__=='__main__':
     import nose
     nose.runmodule(argv=['-s','--with-doctest'], exit=False)
@@ -374,6 +374,12 @@ Image::resize(const Py::Tuple& args, const Py::Dict& kwargs)
     int numcols = Py::Int(args[0]);
     int numrows = Py::Int(args[1]);
 
+    if (numcols < 0 || numrows < 0)
+    {
+	throw Py::RuntimeError(
+	    "Width and height must have non-negative values");
+    }
+
     colsOut = numcols;
     rowsOut = numrows;