def do_3d_projection(self, renderer):
from mpl_toolkits.mplot3d import proj3d
from mpl_toolkits.mplot3d.art3d import zalpha
from matplotlib import colors as mcolors
# transform and sort in z direction
v = np.array(
proj3d.proj_transform_clip(*self._offsets3d, M=renderer.M)[:3])
idx = v[2].argsort()[::-1]
vzs = v[2, idx]
self.set_offsets(v[:2, idx].transpose())
super().set_array(self._A0[idx])
fcs = zalpha(self._facecolor3d,
vzs) if self._depthshade else self._facecolor3d
fcs = mcolors.colorConverter.to_rgba_array(fcs, self._alpha)
self.set_facecolors(fcs)
ecs = zalpha(self._edgecolor3d,
vzs) if self._depthshade else self._edgecolor3d
ecs = mcolors.colorConverter.to_rgba_array(ecs, self._alpha)
self.set_edgecolors(ecs)
return min(vzs) if vzs.size > 0 else np.nan
def do_3d_projection(self, renderer):
from mpl_toolkits.mplot3d import proj3d
from mpl_toolkits.mplot3d.art3d import zalpha
from matplotlib import colors as mcolors
# transform and sort in z direction
v = np.array(proj3d.proj_transform_clip(*self._offsets3d, M=renderer.M)[:3])
idx = v[2].argsort()[::-1]
vzs = v[2, idx]
self.set_offsets(v[:2, idx].transpose())
super().set_array(self._A0[idx])
fcs = zalpha(self._facecolor3d, vzs) if self._depthshade else self._facecolor3d
fcs = mcolors.colorConverter.to_rgba_array(fcs, self._alpha)
self.set_facecolors(fcs)
ecs = zalpha(self._edgecolor3d, vzs) if self._depthshade else self._edgecolor3d
ecs = mcolors.colorConverter.to_rgba_array(ecs, self._alpha)
self.set_edgecolors(ecs)
return min(vzs) if vzs.size > 0 else np.nan
def do_3d_projection(self, renderer):
s = self._segment3d
xs, ys, zs = zip(*s)
vxs, vys, vzs, vis = proj3d.proj_transform_clip(xs, ys, zs, renderer.M)
self._path2d = Path(np.column_stack([vxs, vys]), self._code3d)
return min(vzs)