/usr/share/pyshared/mpl_toolkits/axes_grid1/inset_locator.py is in python-matplotlib 1.3.1-1ubuntu5.
This file is owned by root:root, with mode 0o644.
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#from matplotlib.transforms import IdentityTransform
import matplotlib.transforms as mtrans
#from matplotlib.axes import Axes
from mpl_axes import Axes
from matplotlib.transforms import Bbox, TransformedBbox, IdentityTransform
from matplotlib.patches import Patch
from matplotlib.path import Path
from matplotlib.patches import Rectangle
class InsetPosition(object):
def __init__(self, parent, lbwh):
self.parent = parent
self.lbwh = lbwh # position of the inset axes in the normalized coordinate of the parent axes
def __call__(self, ax, renderer):
bbox_parent = self.parent.get_position(original=False)
trans = mtrans.BboxTransformTo(bbox_parent)
bbox_inset = mtrans.Bbox.from_bounds(*self.lbwh)
bb = mtrans.TransformedBbox(bbox_inset, trans)
return bb
class AnchoredLocatorBase(AnchoredOffsetbox):
def __init__(self, bbox_to_anchor, offsetbox, loc,
borderpad=0.5, bbox_transform=None):
super(AnchoredLocatorBase, self).__init__(loc,
pad=0., child=None,
borderpad=borderpad,
bbox_to_anchor=bbox_to_anchor,
bbox_transform=bbox_transform)
def draw(self, renderer):
raise RuntimeError("No draw method should be called")
def __call__(self, ax, renderer):
fontsize = renderer.points_to_pixels(self.prop.get_size_in_points())
self._update_offset_func(renderer, fontsize)
width, height, xdescent, ydescent = self.get_extent(renderer)
px, py = self.get_offset(width, height, 0, 0, renderer)
bbox_canvas = mtrans.Bbox.from_bounds(px, py, width, height)
tr = ax.figure.transFigure.inverted()
bb = mtrans.TransformedBbox(bbox_canvas, tr)
return bb
import axes_size as Size
class AnchoredSizeLocator(AnchoredLocatorBase):
def __init__(self, bbox_to_anchor, x_size, y_size, loc,
borderpad=0.5, bbox_transform=None):
self.axes = None
self.x_size = Size.from_any(x_size)
self.y_size = Size.from_any(y_size)
super(AnchoredSizeLocator, self).__init__(bbox_to_anchor, None, loc,
borderpad=borderpad,
bbox_transform=bbox_transform)
def get_extent(self, renderer):
x, y, w, h = self.get_bbox_to_anchor().bounds
dpi = renderer.points_to_pixels(72.)
r, a = self.x_size.get_size(renderer)
width = w*r + a*dpi
r, a = self.y_size.get_size(renderer)
height = h*r + a*dpi
xd, yd = 0, 0
fontsize = renderer.points_to_pixels(self.prop.get_size_in_points())
pad = self.pad * fontsize
return width+2*pad, height+2*pad, xd+pad, yd+pad
def __call__(self, ax, renderer):
self.axes = ax
return super(AnchoredSizeLocator, self).__call__(ax, renderer)
class AnchoredZoomLocator(AnchoredLocatorBase):
def __init__(self, parent_axes, zoom, loc,
borderpad=0.5,
bbox_to_anchor=None,
bbox_transform=None):
self.parent_axes = parent_axes
self.zoom = zoom
if bbox_to_anchor is None:
bbox_to_anchor = parent_axes.bbox
super(AnchoredZoomLocator, self).__init__(bbox_to_anchor, None, loc,
borderpad=borderpad,
bbox_transform=bbox_transform)
self.axes = None
def get_extent(self, renderer):
bb = mtrans.TransformedBbox(self.axes.viewLim, self.parent_axes.transData)
x, y, w, h = bb.bounds
xd, yd = 0, 0
fontsize = renderer.points_to_pixels(self.prop.get_size_in_points())
pad = self.pad * fontsize
return w*self.zoom+2*pad, h*self.zoom+2*pad, xd+pad, yd+pad
def __call__(self, ax, renderer):
self.axes = ax
return super(AnchoredZoomLocator, self).__call__(ax, renderer)
class BboxPatch(Patch):
def __init__(self, bbox, **kwargs):
if "transform" in kwargs:
raise ValueError("transform should not be set")
kwargs["transform"] = IdentityTransform()
Patch.__init__(self, **kwargs)
self.bbox = bbox
def get_path(self):
x0, y0, x1, y1 = self.bbox.extents
verts = [(x0, y0),
(x1, y0),
(x1, y1),
(x0, y1),
(x0, y0),
(0,0)]
codes = [Path.MOVETO,
Path.LINETO,
Path.LINETO,
Path.LINETO,
Path.LINETO,
Path.CLOSEPOLY]
return Path(verts, codes)
class BboxConnector(Patch):
@staticmethod
def get_bbox_edge_pos(bbox, loc):
x0, y0, x1, y1 = bbox.extents
if loc==1:
return x1, y1
elif loc==2:
return x0, y1
elif loc==3:
return x0, y0
elif loc==4:
return x1, y0
@staticmethod
def connect_bbox(bbox1, bbox2, loc1, loc2=None):
if isinstance(bbox1, Rectangle):
transform = bbox1.get_transfrom()
bbox1 = Bbox.from_bounds(0, 0, 1, 1)
bbox1 = TransformedBbox(bbox1, transform)
if isinstance(bbox2, Rectangle):
transform = bbox2.get_transform()
bbox2 = Bbox.from_bounds(0, 0, 1, 1)
bbox2 = TransformedBbox(bbox2, transform)
if loc2 is None:
loc2 = loc1
x1, y1 = BboxConnector.get_bbox_edge_pos(bbox1, loc1)
x2, y2 = BboxConnector.get_bbox_edge_pos(bbox2, loc2)
verts = [[x1, y1], [x2,y2]]
#Path()
codes = [Path.MOVETO, Path.LINETO]
return Path(verts, codes)
def __init__(self, bbox1, bbox2, loc1, loc2=None, **kwargs):
"""
*path* is a :class:`matplotlib.path.Path` object.
Valid kwargs are:
%(Patch)s
.. seealso::
:class:`Patch`
For additional kwargs
"""
if "transform" in kwargs:
raise ValueError("transform should not be set")
kwargs["transform"] = IdentityTransform()
Patch.__init__(self, **kwargs)
self.bbox1 = bbox1
self.bbox2 = bbox2
self.loc1 = loc1
self.loc2 = loc2
def get_path(self):
return self.connect_bbox(self.bbox1, self.bbox2,
self.loc1, self.loc2)
class BboxConnectorPatch(BboxConnector):
def __init__(self, bbox1, bbox2, loc1a, loc2a, loc1b, loc2b, **kwargs):
if "transform" in kwargs:
raise ValueError("transform should not be set")
BboxConnector.__init__(self, bbox1, bbox2, loc1a, loc2a, **kwargs)
self.loc1b = loc1b
self.loc2b = loc2b
def get_path(self):
path1 = self.connect_bbox(self.bbox1, self.bbox2, self.loc1, self.loc2)
path2 = self.connect_bbox(self.bbox2, self.bbox1, self.loc2b, self.loc1b)
path_merged = list(path1.vertices) + list (path2.vertices) + [path1.vertices[0]]
return Path(path_merged)
def _add_inset_axes(parent_axes, inset_axes):
parent_axes.figure.add_axes(inset_axes)
inset_axes.set_navigate(False)
def inset_axes(parent_axes, width, height, loc=1,
bbox_to_anchor=None, bbox_transform=None,
axes_class=None,
axes_kwargs=None,
**kwargs):
if axes_class is None:
axes_class = Axes
if axes_kwargs is None:
inset_axes = axes_class(parent_axes.figure, parent_axes.get_position())
else:
inset_axes = axes_class(parent_axes.figure, parent_axes.get_position(),
**axes_kwargs)
if bbox_to_anchor is None:
bbox_to_anchor = parent_axes.bbox
axes_locator = AnchoredSizeLocator(bbox_to_anchor,
width, height,
loc=loc,
bbox_transform=bbox_transform,
**kwargs)
inset_axes.set_axes_locator(axes_locator)
_add_inset_axes(parent_axes, inset_axes)
return inset_axes
def zoomed_inset_axes(parent_axes, zoom, loc=1,
bbox_to_anchor=None, bbox_transform=None,
axes_class=None,
axes_kwargs=None,
**kwargs):
if axes_class is None:
axes_class = Axes
if axes_kwargs is None:
inset_axes = axes_class(parent_axes.figure, parent_axes.get_position())
else:
inset_axes = axes_class(parent_axes.figure, parent_axes.get_position(),
**axes_kwargs)
axes_locator = AnchoredZoomLocator(parent_axes, zoom=zoom, loc=loc,
bbox_to_anchor=bbox_to_anchor, bbox_transform=bbox_transform,
**kwargs)
inset_axes.set_axes_locator(axes_locator)
_add_inset_axes(parent_axes, inset_axes)
return inset_axes
def mark_inset(parent_axes, inset_axes, loc1, loc2, **kwargs):
rect = TransformedBbox(inset_axes.viewLim, parent_axes.transData)
pp = BboxPatch(rect, **kwargs)
parent_axes.add_patch(pp)
p1 = BboxConnector(inset_axes.bbox, rect, loc1=loc1, **kwargs)
inset_axes.add_patch(p1)
p1.set_clip_on(False)
p2 = BboxConnector(inset_axes.bbox, rect, loc1=loc2, **kwargs)
inset_axes.add_patch(p2)
p2.set_clip_on(False)
return pp, p1, p2
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