Experimental:ArcBall Class
Encapsulates many aspects of 3D viewer interaction. Rotation via arcball, translation and scale.
a = TDU.ArcBall(forCamera=False)
Instantiators
TDU.ArcBall(forCamera=False)→ TDU.ArcBall:
Create a new ArcBall object
forCamera- If True, matrices used are from the camera perspective (the world matrices are inverted before being returned or used)
Members
No operator specific members.
Methods
beginPan(u, v)→ None:
Begin a pan at at the given u and v.
m.beginPan(.1, .2)
beginRotate(u, v)→ None:
Begin an arcball rotation at the given u and v.
m.beginRotate(.1, .2)
beginDolly(u, v)→ None:
Begin a dolly at at the given u and v.
m.beginDolly(.1, .2)
pan(u, v)→ None:
Pan the view by the given x and y.
m.pan(.1, .2)
panTo(u, v, scale=1.0)→ None:
Pan from the u,v given in the last call to beginPan() to the given u and v, applying a scale as well to the pan amount.
- scale - (Keyword, Optional) Scale the operation by this amount.
m.panTo(.1, .2)
rotateTo(u, v, scale=1.0)→ None:
Rotates the arcball to the given u and v position.
- scale - (Keyword, Optional) Scale the operation by this amount.
m.rotateTo(.1, .2)
dolly(z)→ None:
Dolly the view by the given z value.
m.dolly(.3)
dollyTo(u, v, scale=1.0)→ None:
Dolly from the u,v given in the last call to beginDolly() to the given u and v, applying a scale as well to the dolly amount.(Keyword, Optional)
- scale - Scale the operation by this amount.
m.dollyTo(.1, .2)
transform()→ TDU.Matrix:
Gets the current transform matrix for the arcball.
m.transform()
setTransform(matrix:TDU.Matrix)→ None:
Sets the current transform matrix for the arcball. Scales in the given matrix will be ignored.
m.setTransform(m)
identity()→ None:
Resets all values of the ArcBall to the default state.
m.identity()
TouchDesigner Build: