arbitrary_rotation_camera

class ArbitraryRotationCamera(fov=45.0, elevation=30.0, azimuth=30.0, roll=0.0, distance=None, translate_speed=1.0, **kwargs)

Bases: TurntableCamera

3D camera class that orbits around a center point while maintaining a view on a center point.

For this camera, the scale_factor indicates the zoom level, and the center indicates the position to put at the center of the view.

Parameters:

• fov (float) – Field of view. Zero (default) means orthographic projection.

• elevation (float) – Elevation angle in degrees. Positive angles place the camera above the center point, negative angles place the camera below the center point.

• azimuth (float) – Azimuth angle in degrees. Zero degrees places the camera on the positive x-axis, pointing in the negative x direction.

• roll (float) – Roll angle in degrees

• distance (float | None) – The distance of the camera from the rotation point (only makes sense if fov > 0). If None (default) the distance is determined from the scale_factor and fov.

• **kwargs (dict) – Keyword arguments to pass to BaseCamera.

Notes

Interaction:

• LMB: orbits the view around its center point.

• RMB or scroll: change scale_factor (i.e. zoom level)

• SHIFT + LMB: translate the center point

• SHIFT + RMB: change FOV

orbit(azim, elev)

Orbits the camera around the center position.

Parameters:

• azim (float) – Angle in degrees to rotate horizontally around the center point.

• elev (float) – Angle in degrees to rotate vertically around the center point.

viewbox_mouse_event(event)

The viewbox received a mouse event; update transform accordingly.

Parameters:

event (instance of Event) – The event.

property elevation

The angle of the camera in degrees above the horizontal (x, z) plane.