Camera

One can change parameters for the default camera by.

>>> ch4.render.camera.type = "PERSP"
>>> ch4.render.camera.lens = 100

Viewpoint

The viewport keyword is used to set the direction of camera. By default, the camera will look at the center of a Batoms object from the viewport direction.

>>> h2o.render.viewport = [0, 0, 1]
>>> # from b axis of Au (111) surface
>>> au111.render.viewport = au111.cell[1]
>>> # Look at any surface with the Miller index (hkl)
>>> import numpy as np
>>> au111.render.viewport = np.dot([h, k, l], au111.cell)

Top view (z)

Front view (x)

Right view (y)

Other viewport (x, y, z)

[0, 0, 1]

[1, 0, 0]

[0, 1, 0]

[1, -0.3, 0.1]
../_images/render_direction_top.png ../_images/render_direction_front.png ../_images/render_direction_right.png ../_images/render_direction_any.png

Camera Type

  • PERSP

  • ORTHO