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rotated text does not align #14239
Description
Bug report
Bug summary
rotating different text by 90 degrees give different baseline alignment
Code for reproduction
import matplotlib.pyplot as plt
plt.figure(figsize=(2., 2.))
plt.text(0.5, 0.0, 'yB', fontsize=40, rotation=90)
plt.text(0.5, 0.5, 'By', fontsize=40, rotation=90)
plt.show()Actual outcome
Expected outcome
Expected 'yB' and 'By' to be aligned
Matplotlib version
- Operating system: CentOS Linux 7
- Matplotlib version: 3.0.3
- Matplotlib backend (print(matplotlib.get_backend())): Qt5Agg
- Python version: 3.6.8
installed via conda
Activity
timhoffm commented on May 18, 2019
A modified version of the text rotation example shows that the bbox is at the correct place but the text is not rendered in the correct position relative to the bbox:
import matplotlib.pyplot as plt from mpl_toolkits.axes_grid1.axes_grid import ImageGrid def test_rotation_mode(fig, mode, subplot_location): ha_list = ["left", "center", "right"] va_list = ["top", "center", "baseline", "bottom"] grid = ImageGrid(fig, subplot_location, nrows_ncols=(len(va_list), len(ha_list)), share_all=True, aspect=True, cbar_mode=None) # labels and title for ha, ax in zip(ha_list, grid.axes_row[-1]): ax.axis["bottom"].label.set_text(ha) for va, ax in zip(va_list, grid.axes_column[0]): ax.axis["left"].label.set_text(va) grid.axes_row[0][1].set_title(f"rotation_mode='{mode}'", size="large") if mode == "default": kw = dict() else: kw = dict( bbox=dict(boxstyle="square,pad=0.", ec="none", fc="C1", alpha=0.3)) # use a different text alignment in each axes texts = {} for (va, ha), ax in zip([(x, y) for x in va_list for y in ha_list], grid): # prepare axes layout for axis in ax.axis.values(): axis.toggle(ticks=False, ticklabels=False) ax.axvline(0.5, color="skyblue", zorder=0) ax.axhline(0.5, color="skyblue", zorder=0) ax.plot(0.5, 0.5, color="C0", marker="o", zorder=1) # add text with rotation and alignment settings tx = ax.text(0.5, 0.5, 'yB', size=20, rotation=90, horizontalalignment=ha, verticalalignment=va, rotation_mode=mode, **kw) tx2 = ax.text(0.5, 0.515, 'By', size=20, rotation=90, horizontalalignment=ha, verticalalignment=va, rotation_mode=mode, **kw) texts[ax] = (tx, tx2) if mode == "default": # highlight bbox fig.canvas.draw() for ax, txts in texts.items(): for tx in txts: bb = tx.get_window_extent().transformed(ax.transData.inverted()) rect = plt.Rectangle((bb.x0, bb.y0), bb.width, bb.height, facecolor="C1", alpha=0.3, zorder=2) ax.add_patch(rect) fig = plt.figure(figsize=(16, 12)) test_rotation_mode(fig, "default", 121) test_rotation_mode(fig, "anchor", 122) plt.show()Edit: updated the code to run on recent versions.
github-actions commented on Jun 16, 2023
This issue has been marked "inactive" because it has been 365 days since the last comment. If this issue is still present in recent Matplotlib releases, or the feature request is still wanted, please leave a comment and this label will be removed. If there are no updates in another 30 days, this issue will be automatically closed, but you are free to re-open or create a new issue if needed. We value issue reports, and this procedure is meant to help us resurface and prioritize issues that have not been addressed yet, not make them disappear. Thanks for your help!
oscargus commented on Jun 16, 2023
Related: #23021 #13044
Maybe related: #14177 #21653
QuLogic commented on Jun 30, 2025
This is a duplicate of #13044 and fixed by #29199.