René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Change in colorbar extensions","articleBody":"In #5307, where I am lowering our testing tolerance down to zero, I am discovering a few recent changes that slipped through because the tolerance on our tests was too high.\n\nIn particular 8928311cc833ffa386344445709bcaa8e4b95243 introduced the following change in `test_axes:test_contour_colorbar`.\n\nCurrent baseline image:\n\n![contour_colorbar-expected](https://cloud.githubusercontent.com/assets/38294/11286720/970383aa-8ee4-11e5-86ac-0eebe9846c4f.png)\n\nCurrent behavior after 8928311cc833ffa386344445709bcaa8e4b95243:\n\n![contour_colorbar](https://cloud.githubusercontent.com/assets/38294/11286724/a5486cd2-8ee4-11e5-9649-bf6818b36bda.png)\n\nThe test code:\n\n```\n@image_comparison(baseline_images=['contour_colorbar'])\ndef test_contour_colorbar():\n    x, y, z = contour_dat()\n\n    fig = plt.figure()\n    ax = fig.add_subplot(111)\n    cs = ax.contourf(x, y, z, levels=np.arange(-1.8, 1.801, 0.2),\n                     cmap=plt.get_cmap('RdBu'),\n                     vmin=-0.6,\n                     vmax=0.6,\n                     extend='both')\n    cs1 = ax.contour(x, y, z, levels=np.arange(-2.2, -0.599, 0.2),\n                     colors=['y'],\n                     linestyles='solid',\n                     linewidths=2)\n    cs2 = ax.contour(x, y, z, levels=np.arange(0.6, 2.2, 0.2),\n                     colors=['c'],\n                     linewidths=2)\n    cbar = fig.colorbar(cs, ax=ax)\n    cbar.add_lines(cs1)\n    cbar.add_lines(cs2, erase=False)\n```\n\n@efiring: Do you know if this change was intentional?\n","author":{"url":"https://github.com/mdboom","@type":"Person","name":"mdboom"},"datePublished":"2015-11-19T22:41:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/5524/matplotlib/issues/5524"}