why does my colorbar have lines in it?

Question

Edit: Since this seems to be a popular post, here\'s the solution that seems to be working well for me. Thanks @gazzar and @mfra.

cbar.solid         


        

Answer 1

The following can be another solution even if it is not elegant.

In [1]: children = cbar.ax.get_children()
In [2]: children
Out[2]:
[<matplotlib.collections.QuadMesh at 0x21783c41b70>,
 <matplotlib.collections.LineCollection at 0x21783bfdc18>,
 <matplotlib.patches.Polygon at 0x21783ba0588>,
 <matplotlib.patches.Polygon at 0x21783beef98>,
 <matplotlib.spines.Spine at 0x21783b77c88>,
 <matplotlib.spines.Spine at 0x21783b77470>,
 <matplotlib.spines.Spine at 0x21783b70c88>,
 <matplotlib.spines.Spine at 0x21783b70860>,
 <matplotlib.axis.XAxis at 0x21783b6ac50>,
 <matplotlib.axis.YAxis at 0x21783ba60f0>,
 <matplotlib.text.Text at 0x21783bc2198>,
 <matplotlib.text.Text at 0x21783bc2320>,
 <matplotlib.text.Text at 0x21783bc22b0>,
 <matplotlib.patches.Rectangle at 0x21783bc2358>]
In [3]: obj = children[1]  # Get the LineCollection object
In [4]: obj.set_linewidth(0)