diff --git a/lib/matplotlib/collections.py b/lib/matplotlib/collections.py
index d54fedafbd02..d117c56ff540 100644
--- a/lib/matplotlib/collections.py
+++ b/lib/matplotlib/collections.py
@@ -1741,7 +1741,9 @@ def __init__(self, meshWidth, meshHeight, coordinates,
Collection.__init__(self, **kwargs)
self._meshWidth = meshWidth
self._meshHeight = meshHeight
- self._coordinates = coordinates
+ # By converting to floats now, we can avoid that on every draw.
+ self._coordinates = np.asarray(coordinates, float).reshape(
+ (meshHeight + 1, meshWidth + 1, 2))
self._antialiased = antialiased
self._shading = shading
@@ -1749,11 +1751,6 @@ def __init__(self, meshWidth, meshHeight, coordinates,
self._bbox.update_from_data_xy(coordinates.reshape(
((meshWidth + 1) * (meshHeight + 1), 2)))
- # By converting to floats now, we can avoid that on every draw.
- self._coordinates = self._coordinates.reshape(
- (meshHeight + 1, meshWidth + 1, 2))
- self._coordinates = np.array(self._coordinates, float)
-
def get_paths(self):
if self._paths is None:
self.set_paths()
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