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axes_grid toolkit is splitted into two separate modules, axes_grid1 and axisartist.
svn path=/trunk/matplotlib/; revision=8223
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‎CHANGELOG‎

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2010-04-06 axes_grid toolkit is splitted into two separate modules,
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axes_grid1 and axisartist. -JJL
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2010-04-05 Speed up import: import pytz only if and when it is
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needed. It is not needed if the rc timezone is UTC. - EF
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‎lib/mpl_toolkits/axes_grid1/__init__.py‎

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import axes_size as Size
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from axes_divider import Divider, SubplotDivider, LocatableAxes, \
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make_axes_locatable
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from axes_grid import Grid, ImageGrid, AxesGrid
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#from axes_divider import make_axes_locatable

‎lib/mpl_toolkits/axes_grid1/anchored_artists.py‎

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from matplotlib.patches import Rectangle, Ellipse
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import numpy as np
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from matplotlib.offsetbox import AnchoredOffsetbox, AuxTransformBox, VPacker,\
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TextArea, AnchoredText, DrawingArea, AnnotationBbox
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class AnchoredDrawingArea(AnchoredOffsetbox):
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"""
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AnchoredOffsetbox with DrawingArea
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"""
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def __init__(self, width, height, xdescent, ydescent,
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loc, pad=0.4, borderpad=0.5, prop=None, frameon=True,
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**kwargs):
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"""
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*width*, *height*, *xdescent*, *ydescent* : the dimensions of the DrawingArea.
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*prop* : font property. this is only used for scaling the paddings.
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"""
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self.da = DrawingArea(width, height, xdescent, ydescent, clip=True)
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self.drawing_area = self.da
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super(AnchoredDrawingArea, self).__init__(loc, pad=pad, borderpad=borderpad,
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child=self.da,
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prop=None,
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frameon=frameon,
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**kwargs)
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class AnchoredAuxTransformBox(AnchoredOffsetbox):
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def __init__(self, transform, loc,
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pad=0.4, borderpad=0.5, prop=None, frameon=True, **kwargs):
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self.drawing_area = AuxTransformBox(transform)
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AnchoredOffsetbox.__init__(self, loc, pad=pad, borderpad=borderpad,
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child=self.drawing_area,
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prop=prop,
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frameon=frameon,
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**kwargs)
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class AnchoredEllipse(AnchoredOffsetbox):
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def __init__(self, transform, width, height, angle, loc,
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pad=0.1, borderpad=0.1, prop=None, frameon=True, **kwargs):
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"""
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Draw an ellipse the size in data coordinate of the give axes.
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pad, borderpad in fraction of the legend font size (or prop)
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"""
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self._box = AuxTransformBox(transform)
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self.ellipse = Ellipse((0,0), width, height, angle)
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self._box.add_artist(self.ellipse)
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AnchoredOffsetbox.__init__(self, loc, pad=pad, borderpad=borderpad,
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child=self._box,
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prop=prop,
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frameon=frameon, **kwargs)
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class AnchoredSizeBar(AnchoredOffsetbox):
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def __init__(self, transform, size, label, loc,
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pad=0.1, borderpad=0.1, sep=2, prop=None, frameon=True,
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**kwargs):
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"""
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Draw a horizontal bar with the size in data coordinate of the give axes.
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A label will be drawn underneath (center-alinged).
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pad, borderpad in fraction of the legend font size (or prop)
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sep in points.
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"""
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self.size_bar = AuxTransformBox(transform)
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self.size_bar.add_artist(Rectangle((0,0), size, 0, fc="none"))
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self.txt_label = TextArea(label, minimumdescent=False)
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self._box = VPacker(children=[self.size_bar, self.txt_label],
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align="center",
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pad=0, sep=sep)
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AnchoredOffsetbox.__init__(self, loc, pad=pad, borderpad=borderpad,
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child=self._box,
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prop=prop,
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frameon=frameon, **kwargs)
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if __name__ == "__main__":
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import matplotlib.pyplot as plt
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fig = plt.gcf()
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fig.clf()
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ax = plt.subplot(111)
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offsetbox = AnchoredText("Test", loc=6, pad=0.3,
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borderpad=0.3, prop=None)
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xy = (0.5, 0.5)
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ax.plot([0.5], [0.5], "xk")
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ab = AnnotationBbox(offsetbox, xy,
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xybox=(1., .5),
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xycoords='data',
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boxcoords=("axes fraction", "data"),
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arrowprops=dict(arrowstyle="->"))
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#arrowprops=None)
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ax.add_artist(ab)
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from matplotlib.patches import Circle
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ada = AnchoredDrawingArea(20, 20, 0, 0,
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loc=6, pad=0.1, borderpad=0.3, frameon=True)
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p = Circle((10, 10), 10)
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ada.da.add_artist(p)
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ab = AnnotationBbox(ada, (0.3, 0.4),
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xybox=(1., 0.4),
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xycoords='data',
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boxcoords=("axes fraction", "data"),
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arrowprops=dict(arrowstyle="->"))
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#arrowprops=None)
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ax.add_artist(ab)
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arr = np.arange(100).reshape((10,10))
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im = AnchoredImage(arr,
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loc=4,
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pad=0.5, borderpad=0.2, prop=None, frameon=True,
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zoom=1,
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cmap = None,
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norm = None,
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interpolation=None,
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origin=None,
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extent=None,
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filternorm=1,
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filterrad=4.0,
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resample = False,
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)
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ab = AnnotationBbox(im, (0.5, 0.5),
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xybox=(-10., 10.),
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xycoords='data',
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boxcoords="offset points",
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arrowprops=dict(arrowstyle="->"))
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#arrowprops=None)
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ax.add_artist(ab)
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ax.set_xlim(0, 1)
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ax.set_ylim(0, 1)
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plt.draw()
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plt.show()
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