class MplPathROI(MplPolygonalROI):
def roi_factory(self):
return Path()
def _setup_patch(self):
self._patch = None
def _sync_patch(self):
if self._patch is not None:
self._patch.remove()
self._patch = None
# Update geometry
if not self._roi.defined():
return
else:
x, y = self._roi.to_polygon()
p = MplPath(np.column_stack((x, y)))
self._patch = PathPatch(p)
self._patch.set_visible(True)
# Update appearance
self._patch.set(**self.plot_opts)
# Refresh
self._axes.figure.canvas.draw()
def finalize_selection(self, event):
self._mid_selection = False
if self._patch is not None:
self._patch.set_visible(False)
self._axes.figure.canvas.draw()
class MplPathROI(MplPolygonalROI):
def roi_factory(self):
return Path()
def _setup_patch(self):
self._patch = None
def _sync_patch(self):
if self._patch is not None:
self._patch.remove()
self._patch = None
# Update geometry
if not self._roi.defined():
return
else:
x, y = self._roi.to_polygon()
p = MplPath(np.column_stack((x, y)))
self._patch = PathPatch(p)
self._patch.set_visible(True)
# Update appearance
self._patch.set(**self.plot_opts)
# Refresh
self._axes.figure.canvas.draw()
def finalize_selection(self, event):
self._mid_selection = False
if self._patch is not None:
self._patch.set_visible(False)
self._axes.figure.canvas.draw()
class MplPathROI(MplPolygonalROI):
"""
Matplotlib ROI for path selections
Parameters
----------
axes : :class:`matplotlib.axes.Axes`
The Matplotlib axes to draw to.
"""
_roi_cls = Path
def __init__(self, axes, roi=None):
super(MplPolygonalROI, self).__init__(axes)
self.plot_opts = {
'edgecolor': PATCH_COLOR,
'facecolor': PATCH_COLOR,
'alpha': 0.3
}
self._patch = None
def start_selection(self, event):
if self._patch is not None:
self._patch.remove()
self._patch = None
self._background_cache = None
self._axes.figure.canvas.draw()
super(MplPathROI, self).start_selection(event)
def _sync_patch(self):
if self._patch is not None:
self._patch.remove()
self._patch = None
if self._roi.defined():
x, y = self._roi.to_polygon()
p = MplPath(np.column_stack((x, y)))
self._patch = PathPatch(p, transform=self._axes.transData)
self._patch.set_visible(True)
self._patch.set(**self.plot_opts)
self._axes.add_artist(self._patch)
def finalize_selection(self, event):
self._mid_selection = False
if self._patch is not None:
self._patch.remove()
self._patch = None
self._draw()
class MplPathROI(MplPolygonalROI):
"""
Matplotlib ROI for path selections
Parameters
----------
axes : `~matplotlib.axes.Axes`
The Matplotlib axes to draw to.
"""
_roi_cls = Path
def __init__(self, axes, roi=None):
super(MplPolygonalROI, self).__init__(axes)
self.plot_opts = {'edgecolor': PATCH_COLOR,
'facecolor': PATCH_COLOR,
'alpha': 0.3}
self._patch = None
def _sync_patch(self):
if self._patch is not None:
self._patch.remove()
self._patch = None
if self._roi.defined():
x, y = self._roi.to_polygon()
p = MplPath(np.column_stack((x, y)))
self._patch = PathPatch(p)
self._patch.set_visible(True)
self._patch.set(**self.plot_opts)
def finalize_selection(self, event):
self._mid_selection = False
if self._patch is not None:
self._patch.set_visible(False)
self._draw()
