def _set_transform(self):
ax = self.ax
if self.units in ('x', 'y'):
if self.units == 'x':
dx0 = ax.viewLim.ur().x() - ax.viewLim.ll().x()
dx1 = ax.bbox.ur().x() - ax.bbox.ll().x()
else:
dx0 = ax.viewLim.ur().y() - ax.viewLim.ll().y()
dx1 = ax.bbox.ur().y() - ax.bbox.ll().y()
dx = dx1/dx0
else:
if self.units == 'width':
dx = ax.bbox.ur().x() - ax.bbox.ll().x()
elif self.units == 'height':
dx = ax.bbox.ur().y() - ax.bbox.ll().y()
elif self.units == 'dots':
dx = T.Value(1)
elif self.units == 'inches':
dx = ax.figure.dpi
else:
raise ValueError('unrecognized units')
bb = T.Bbox(T.origin(), T.Point(dx, dx))
trans = T.get_bbox_transform(T.unit_bbox(), bb)
self.set_transform(trans)
return trans
def _set_transform(self):
if self.coord == 'data':
self.set_transform(self.Q.ax.transData)
elif self.coord == 'axes':
self.set_transform(self.Q.ax.transAxes)
elif self.coord == 'figure':
self.set_transform(self.Q.ax.figure.transFigure)
elif self.coord == 'inches':
dx = ax.figure.dpi
bb = T.Bbox(T.origin(), T.Point(dx, dx))
trans = T.get_bbox_transform(T.unit_bbox(), bb)
self.set_transform(trans)
else:
raise ValueError('unrecognized coordinates')