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Fix clim handling for pcolor{,mesh}.#21146

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Merged
timhoffm merged 1 commit intomatplotlib:masterfromanntzer:clim
Sep 22, 2021
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18 changes: 5 additions & 13 deletionslib/matplotlib/axes/_axes.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -5845,12 +5845,8 @@ def pcolor(self, *args, shading=None, alpha=None, norm=None, cmap=None,

kwargs.setdefault('snap', False)

collection = mcoll.PolyCollection(verts, **kwargs)

collection.set_alpha(alpha)
collection.set_array(C)
collection.set_cmap(cmap)
collection.set_norm(norm)
collection = mcoll.PolyCollection(
verts, array=C, cmap=cmap, norm=norm, alpha=alpha, **kwargs)
collection._scale_norm(norm, vmin, vmax)
self._pcolor_grid_deprecation_helper()

Expand DownExpand Up@@ -6079,14 +6075,10 @@ def pcolormesh(self, *args, alpha=None, norm=None, cmap=None, vmin=None,
# convert to one dimensional array
C = C.ravel()

collection = mcoll.QuadMesh(
coords, antialiased=antialiased, shading=shading, **kwargs)
snap = kwargs.get('snap', rcParams['pcolormesh.snap'])
collection.set_snap(snap)
collection.set_alpha(alpha)
collection.set_array(C)
collection.set_cmap(cmap)
collection.set_norm(norm)
collection = mcoll.QuadMesh(
coords, antialiased=antialiased, shading=shading, snap=snap,
array=C, cmap=cmap, norm=norm, alpha=alpha, **kwargs)
collection._scale_norm(norm, vmin, vmax)
self._pcolor_grid_deprecation_helper()

Expand Down
8 changes: 8 additions & 0 deletionslib/matplotlib/tests/test_axes.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -7232,3 +7232,11 @@ def test_empty_line_plots():
_, ax = plt.subplots()
line = ax.plot([], [])
assert len(line) == 1


def test_clim():
ax = plt.figure().add_subplot()
for plot_method in [ax.imshow, ax.pcolor, ax.pcolormesh, ax.pcolorfast]:
clim = (7, 8)
norm = plot_method([[0, 1], [2, 3]], clim=clim).norm
assert (norm.vmin, norm.vmax) == clim
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