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Commit 6009467

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author
Wiliam
committed
Implement the changes to the text rotation
1 parent 758a399 commit 6009467
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49 files changed

+14
-4
lines changed

‎lib/matplotlib/backends/backend_agg.py

Copy file name to clipboardExpand all lines: lib/matplotlib/backends/backend_agg.py
+14-4Lines changed: 14 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -197,10 +197,20 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
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xo, yo = font.get_bitmap_offset()
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xo /= 64.0
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yo /= 64.0
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xd = d * sin(radians(angle))
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yd = d * cos(radians(angle))
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x = round(x + xo + xd)
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y = round(y + yo + yd)
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rad = radians(angle)
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xd = d * sin(rad)
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yd = d * cos(rad)
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# Rotating the offset vector ensures text rotates around the anchor point.
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# Without this, rotated text offsets incorrectly, causing a horizontal shift.
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# Applying the 2D rotation matrix.
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rotated_xo = xo * cos(rad) - yo * sin(rad)
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rotated_yo = xo * sin(rad) + yo * cos(rad)
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# Subtract rotated_yo to account for the inverted y-axis in computer graphics,
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# compared to the mathematical convention.
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x = round(x + rotated_xo + xd)
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y = round(y - rotated_yo + yd)
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self._renderer.draw_text_image(font, x, y + 1, angle, gc)
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def get_text_width_height_descent(self, s, prop, ismath):

‎lib/matplotlib/tests/baseline_images/test_axes/fill_units.png

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‎lib/matplotlib/tests/baseline_images/test_axes/formatter_ticker_002.png

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‎lib/matplotlib/tests/baseline_images/test_contour/contour_datetime_axis.png

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‎lib/matplotlib/tests/baseline_images/test_contour/contour_test_label_transforms.png

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‎lib/matplotlib/tests/baseline_images/test_dates/DateFormatter_fractionalSeconds.png

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‎lib/matplotlib/tests/baseline_images/test_figure/figure_align_labels.png

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‎lib/matplotlib/tests/baseline_images/test_figure/figure_align_titles_constrained.png

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‎lib/matplotlib/tests/baseline_images/test_figure/figure_align_titles_tight.png

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‎lib/matplotlib/tests/baseline_images/test_polar/polar_rlabel_position.png

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‎lib/matplotlib/tests/baseline_images/test_polar/polar_theta_wedge.png

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‎lib/matplotlib/tests/baseline_images/test_text/multiline2.png

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‎lib/matplotlib/tests/baseline_images/test_units/jpl_barh_units.png

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‎lib/matplotlib/tests/baseline_images/test_units/plot_pint.png

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‎lib/mpl_toolkits/axisartist/tests/baseline_images/test_axis_artist/axis_artist_ticklabels.png

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‎lib/mpl_toolkits/mplot3d/tests/baseline_images/test_axes3d/surface3d_label_offset_tick_position.png

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