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Commit1ef609b

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ENH: Allow offsetting PolarAxes' zero location.
Let the user specify an arbitrary zero location with reference to theusual cardinal points. This can be a bit more intuitive than requiringthe offset in radians.
1 parent7731471 commit1ef609b

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5 files changed

+604
-598
lines changed

5 files changed

+604
-598
lines changed

‎lib/matplotlib/projections/polar.py

Lines changed: 9 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -663,12 +663,18 @@ def get_theta_offset(self):
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"""
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returnself._theta_offset.get_matrix()[0,2]
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666-
defset_theta_zero_location(self,loc):
666+
defset_theta_zero_location(self,loc,offset=0.0):
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"""
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Sets the location of theta's zero. (Calls set_theta_offset
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with the correct value in radians under the hood.)
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May be one of "N", "NW", "W", "SW", "S", "SE", "E", or "NE".
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loc : str
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May be one of "N", "NW", "W", "SW", "S", "SE", "E", or "NE".
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offset : float, optional
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An offset in degrees to apply from the specified `loc`. **Note:**
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this offset is *always* applied counter-clockwise regardless of
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the direction setting.
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"""
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mapping= {
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'N':np.pi*0.5,
@@ -679,7 +685,7 @@ def set_theta_zero_location(self, loc):
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'SE':np.pi*1.75,
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'E':0,
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'NE':np.pi*0.25 }
682-
returnself.set_theta_offset(mapping[loc])
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returnself.set_theta_offset(mapping[loc]+np.deg2rad(offset))
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defset_theta_direction(self,direction):
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"""
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