8000 Fix cursor_demo wrt. Line2D.set_x/ydata not accepting scalars anymore. · matplotlib/matplotlib@bb1e1a0 · GitHub
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anntzeranntzer
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Fix cursor_demo wrt. Line2D.set_x/ydata not accepting scalars anymore.
Trying to run the example prior to the PR would result in exceptions being thrown on mouse moves.
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‎examples/event_handling/cursor_demo.py

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -56,8 +56,8 @@ def on_mouse_move(self, event):
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self.set_cross_hair_visible(True)
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x, y = event.xdata, event.ydata
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# update the line positions
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self.horizontal_line.set_ydata(y)
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self.vertical_line.set_xdata(x)
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self.horizontal_line.set_ydata([y])
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self.vertical_line.set_xdata([x])
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self.text.set_text(f'x={x:1.2f}, y={y:1.2f}')
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self.ax.figure.canvas.draw()
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@@ -132,8 +132,8 @@ def on_mouse_move(self, event):
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self.set_cross_hair_visible(True)
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# update the line positions
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x, y = event.xdata, event.ydata
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self.horizontal_line.set_ydata(y)
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self.vertical_line.set_xdata(x)
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self.horizontal_line.set_ydata([y])
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self.vertical_line.set_xdata([x])
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self.text.set_text(f'x={x:1.2f}, y={y:1.2f}')
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self.ax.figure.canvas.restore_region(self.background)
@@ -204,8 +204,8 @@ def on_mouse_move(self, event):
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x = self.x[index]
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y = self.y[index]
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# update the line positions
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self.horizontal_line.set_ydata(y)
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self.vertical_line.set_xdata(x)
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self.horizontal_line.set_ydata([y])
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self.vertical_line.set_xdata([x])
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self.text.set_text(f'x={x:1.2f}, y={y:1.2f}')
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self.ax.figure.canvas.draw()
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‎examples/widgets/annotated_cursor.py

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -18,16 +18,16 @@
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The figure related to this example does not show the cursor, because that
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figure is automatically created in a build queue, where the first mouse
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movement, which triggers the cursor creation, is missing.
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"""
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from matplotlib.widgets import Cursor
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import numpy as np
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import matplotlib.pyplot as plt
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class AnnotatedCursor(Cursor):
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"""
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A crosshair cursor like `~matplotlib.widgets.Cursor` with a text showing \
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A crosshair cursor like `~matplotlib.widgets.Cursor` with a text showing
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the current coordinates.
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For the cursor to remain responsive you must keep a reference to it.

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