def test_download_frog():
data = examples.download_frog()
assert data.n_cells
# Cool Volume Examples
# ++++++++++++++++++++
#
# Here are a few more cool volume rendering examples
head = examples.download_head()
p = pv.Plotter()
p.add_volume(head, cmap="cool", opacity="sigmoid_6")
p.camera_position = [(-228.0, -418.0, -158.0), (94.0, 122.0, 82.0),
(-0.2, -0.3, 0.9)]
p.show()
###############################################################################
bolt_nut = examples.download_bolt_nut()
p = pv.Plotter()
p.add_volume(bolt_nut, cmap="coolwarm", opacity="sigmoid_5")
p.show()
###############################################################################
frog = examples.download_frog()
p = pv.Plotter()
p.add_volume(frog, cmap="viridis", opacity="sigmoid_6")
p.camera_position = [(929., 1067., -278.9), (249.5, 234.5, 101.25),
(-0.2048, -0.2632, -0.9427)]
p.show()
