<html><head></head><body><div style="font-family:times new roman, new york, times, serif;font-size:16px;"><div>Hello All,</div><div><br></div><div>I have a renderWindow that contains two renderers. In first renderer I display Polydata actor and a cut plane actor. In the second renderer, I render contours generated by the intersection of the Polydata and the cut plane. I have a Trackball style interactor for the renderWindow to deal with the mouse and keyboard events in both the renderers. Everything is good so far. </div><div><br></div><div>Now I don't want to allow rotation of the camera with left mouse button in the second renderer, where contours are rendered. I need the zoom and pan, but not the rotation. How can I do it? I set the PickableOff on contour actor in order to avoid pick and drag. This solves half the problem. I still need to lock the rotation of the camera with left mouse button. </div><div><br></div><div>I appreciate your suggestions.</div><div><br></div><div>Thank you</div><div>Koteswar</div></div></body></html>