vtk.js interactorStyleManipulator constrain rotation

siebe · September 28, 2021, 8:58am

Hi,

I’m using a vtkRenderWindowInteractor with the vtkInteractorStyleManipulator style applied to it. This allows to rotate the 3D view using mouse gestures.

I was wandering if there is a way to constrain the 3D rotation of the interactor in such a way that the horizon of the camera stays horizontal. In other words, dragging the mouse should allow for yawing and pitching but not rolling (there is a separate shortcut for that). Some pictures to illustrate:

Default orientation:
Dragging to the left results in a yaw:
Dragging downwards results in a pitch:

image610×510 56.4 KB
This should not be allowed (camera is rolled):

image608×559 52.2 KB

Thanks a lot for the help!

Sebastien_Jourdain · September 28, 2021, 2:38pm

I think this is what you are looking for.

siebe · September 30, 2021, 12:37pm

This is exactly what I was looking for indeed. Thanks a lot.