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Add angle setter/getter to Rectangle #19646

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Merged
merged 2 commits into from
Mar 8, 2021
Merged

Add angle setter/getter to Rectangle #19646

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6f49939
Add angle setters/getters to Rectangle
dstansby Mar 7, 2021
35d1e83
Add test for rect rotation
dstansby Mar 8, 2021
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13 changes: 13 additions & 0 deletions lib/matplotlib/patches.py
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Original file line number Diff line number Diff line change
Expand Up @@ -799,6 +799,10 @@ def get_height(self):
"""Return the height of the rectangle."""
return self._height

def get_angle(self):
"""Get the rotation angle in degrees."""
return self.angle

def set_x(self, x):
"""Set the left coordinate of the rectangle."""
self._x0 = x
Expand All @@ -809,6 +813,15 @@ def set_y(self, y):
self._y0 = y
self.stale = True

def set_angle(self, angle):
"""
Set the rotation angle in degrees.

The rotation is performed anti-clockwise around *xy*.
"""
self.angle = angle
self.stale = True

def set_xy(self, xy):
"""
Set the left and bottom coordinates of the rectangle.
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21 changes: 21 additions & 0 deletions lib/matplotlib/tests/test_patches.py
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Expand Up @@ -76,6 +76,27 @@ def test_rotate_rect():
assert_almost_equal(rect1.get_verts(), new_verts)


@check_figures_equal(extensions=['png'])
def test_rotate_rect_draw(fig_test, fig_ref):
ax_test = fig_test.add_subplot()
ax_ref = fig_ref.add_subplot()

loc = (0, 0)
width, height = (1, 1)
angle = 30
rect_ref = Rectangle(loc, width, height, angle=angle)
ax_ref.add_patch(rect_ref)
assert rect_ref.get_angle() == angle

# Check that when the angle is updated after adding to an axes, that the
# patch is marked stale and redrawn in the correct location
rect_test = Rectangle(loc, width, height)
assert rect_test.get_angle() == 0
ax_test.add_patch(rect_test)
rect_test.set_angle(angle)
assert rect_test.get_angle() == angle


def test_negative_rect():
# These two rectangles have the same vertices, but starting from a
# different point. (We also drop the last vertex, which is a duplicate.)
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