/usr/lib/python3/dist-packages/mpl_toolkits/axes_grid1/anchored_artists.py is in python3-matplotlib 1.5.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | from __future__ import (absolute_import, division, print_function,
unicode_literals)
from matplotlib.externals import six
from matplotlib.patches import Rectangle, Ellipse
import numpy as np
from matplotlib.offsetbox import AnchoredOffsetbox, AuxTransformBox, VPacker,\
TextArea, AnchoredText, DrawingArea, AnnotationBbox
class AnchoredDrawingArea(AnchoredOffsetbox):
"""
AnchoredOffsetbox with DrawingArea
"""
def __init__(self, width, height, xdescent, ydescent,
loc, pad=0.4, borderpad=0.5, prop=None, frameon=True,
**kwargs):
"""
*width*, *height*, *xdescent*, *ydescent* : the dimensions of the DrawingArea.
*prop* : font property. This is only used for scaling the paddings.
"""
self.da = DrawingArea(width, height, xdescent, ydescent)
self.drawing_area = self.da
super(AnchoredDrawingArea, self).__init__(loc, pad=pad, borderpad=borderpad,
child=self.da,
prop=None,
frameon=frameon,
**kwargs)
class AnchoredAuxTransformBox(AnchoredOffsetbox):
def __init__(self, transform, loc,
pad=0.4, borderpad=0.5, prop=None, frameon=True, **kwargs):
self.drawing_area = AuxTransformBox(transform)
AnchoredOffsetbox.__init__(self, loc, pad=pad, borderpad=borderpad,
child=self.drawing_area,
prop=prop,
frameon=frameon,
**kwargs)
class AnchoredEllipse(AnchoredOffsetbox):
def __init__(self, transform, width, height, angle, loc,
pad=0.1, borderpad=0.1, prop=None, frameon=True, **kwargs):
"""
Draw an ellipse the size in data coordinate of the give axes.
pad, borderpad in fraction of the legend font size (or prop)
"""
self._box = AuxTransformBox(transform)
self.ellipse = Ellipse((0,0), width, height, angle)
self._box.add_artist(self.ellipse)
AnchoredOffsetbox.__init__(self, loc, pad=pad, borderpad=borderpad,
child=self._box,
prop=prop,
frameon=frameon, **kwargs)
class AnchoredSizeBar(AnchoredOffsetbox):
def __init__(self, transform, size, label, loc,
pad=0.1, borderpad=0.1, sep=2,
frameon=True, size_vertical=0, color='black',
label_top=False, fontproperties=None,
**kwargs):
"""
Draw a horizontal bar with the size in data coordinate of the given axes.
A label will be drawn underneath (center-aligned).
Parameters:
-----------
transform : matplotlib transformation object
size : int or float
horizontal length of the size bar, given in data coordinates
label : str
loc : int
pad : int or float, optional
in fraction of the legend font size (or prop)
borderpad : int or float, optional
in fraction of the legend font size (or prop)
sep : int or float, optional
in points
frameon : bool, optional
if True, will draw a box around the horizontal bar and label
size_vertical : int or float, optional
vertical length of the size bar, given in data coordinates
color : str, optional
color for the size bar and label
label_top : bool, optional
if True, the label will be over the rectangle
fontproperties: a matplotlib.font_manager.FontProperties instance, optional
sets the font properties for the label text
Returns:
--------
AnchoredSizeBar object
Example:
--------
>>> import matplotlib.pyplot as plt
>>> import numpy as np
>>> from mpl_toolkits.axes_grid1.anchored_artists import AnchoredSizeBar
>>> fig, ax = plt.subplots()
>>> ax.imshow(np.random.random((10,10)))
>>> bar = AnchoredSizeBar(ax.transData, 3, '3 units', 4)
>>> ax.add_artist(bar)
>>> fig.show()
Using all the optional parameters
>>> import matplotlib.font_manager as fm
>>> fontprops = fm.FontProperties(size=14, family='monospace')
>>> bar = AnchoredSizeBar(ax.transData, 3, '3 units', 4, pad=0.5, sep=5, borderpad=0.5, frameon=False, size_vertical=0.5, color='white', fontproperties=fontprops)
"""
self.size_bar = AuxTransformBox(transform)
self.size_bar.add_artist(Rectangle((0, 0), size, size_vertical,
fill=True, facecolor=color,
edgecolor=color))
# if fontproperties is None, but `prop` is not, assume that
# prop should be used to set the font properties. This is
# questionable behavior
if fontproperties is None and 'prop' in kwargs:
fontproperties = kwargs.pop('prop')
if fontproperties is None:
textprops = {'color': color}
else:
textprops = {'color': color, 'fontproperties': fontproperties}
self.txt_label = TextArea(
label,
minimumdescent=False,
textprops=textprops)
if label_top:
_box_children = [self.txt_label, self.size_bar]
else:
_box_children = [self.size_bar, self.txt_label]
self._box = VPacker(children=_box_children,
align="center",
pad=0, sep=sep)
AnchoredOffsetbox.__init__(self, loc, pad=pad, borderpad=borderpad,
child=self._box,
prop=fontproperties,
frameon=frameon, **kwargs)
if __name__ == "__main__":
import matplotlib.pyplot as plt
fig = plt.gcf()
fig.clf()
ax = plt.subplot(111)
offsetbox = AnchoredText("Test", loc=6, pad=0.3,
borderpad=0.3, prop=None)
xy = (0.5, 0.5)
ax.plot([0.5], [0.5], "xk")
ab = AnnotationBbox(offsetbox, xy,
xybox=(1., .5),
xycoords='data',
boxcoords=("axes fraction", "data"),
arrowprops=dict(arrowstyle="->"))
#arrowprops=None)
ax.add_artist(ab)
from matplotlib.patches import Circle
ada = AnchoredDrawingArea(20, 20, 0, 0,
loc=6, pad=0.1, borderpad=0.3, frameon=True)
p = Circle((10, 10), 10)
ada.da.add_artist(p)
ab = AnnotationBbox(ada, (0.3, 0.4),
xybox=(1., 0.4),
xycoords='data',
boxcoords=("axes fraction", "data"),
arrowprops=dict(arrowstyle="->"))
#arrowprops=None)
ax.add_artist(ab)
arr = np.arange(100).reshape((10,10))
im = AnchoredImage(arr,
loc=4,
pad=0.5, borderpad=0.2, prop=None, frameon=True,
zoom=1,
cmap = None,
norm = None,
interpolation=None,
origin=None,
extent=None,
filternorm=1,
filterrad=4.0,
resample = False,
)
ab = AnnotationBbox(im, (0.5, 0.5),
xybox=(-10., 10.),
xycoords='data',
boxcoords="offset points",
arrowprops=dict(arrowstyle="->"))
#arrowprops=None)
ax.add_artist(ab)
ax.set_xlim(0, 1)
ax.set_ylim(0, 1)
plt.draw()
plt.show()
|