The default viewer is threejs. It allows to interactively zoom in/out and rotate the figure with the mouse. So don't specify any viewer in show or write viewer=threejs. It is true, however, that the initial viewpoint cannot be fixed a priori.
The default viewer is threejs. It allows to interactively zoom in/out and rotate the figure with the mouse. So don't specify any viewer in show or write viewer=threejsviewer="threejs". It is true, however, that the initial viewpoint cannot be fixed a priori.