These Extensions reference a specific Palette:arcBallGeometry.

ArcBallExt

The ArcBallExt Class helps with interactively controlling a Geometry COMP given a Container COMP with the Mouse UV Buttons Parameters for left, middle and right enabled.

Members

No operator specific members.

Methods

ArcBallExt.LoadTransform(dat=None, matrix=None)→ None:

Given a tableDAT or a tdu.Matrix() it can be used to recall a saved transformation.

• dat - An tableDAT operator reference to the tableDAT that holds the matrix to be loaded.
• matrix - A tdu.Matrix object that holds the matrix to be loaded.

ArcBallExt.Reset()→ None:

Resets the ArcBall.

ArcBallExt.SaveTransform(dat=None)→ None:

Will save out the current ArcBall's transformation matrix to a tableDAT. If no TableDAT is given, the internal newMat TableDAT is being used.

• dat - A tableDAT operator reference to the tableDAT where to write the current transform matrix into.

ArcBallExt.StartTransform(btn=None, u=0, v=0)→ None:

Will begin a transform depending on the mouse button pressed.

• btn - The mouse btn pressed. Can be one of 'lselect', 'rselect' or 'mselect' corrseponding to 'rotate', 'pan' and 'zoom'.
• u - The horizontal mouse position on the control panel.
• v - The vertical mouse position on the control panel.

ArcBallExt.Transform(btn=None, u=0, v=0, scaler=1)→ None:

Applies a transform to the ArcBall depending on the mouse button pressed.

• btn - The mouse btn pressed. Can be one of 'lselect', 'rselect' or 'mselect' corrseponding to 'rotate', 'pan' and 'zoom'.
• u - The horizontal mouse position on the control panel.
• v - The vertical mouse position on the control panel.
• scaler - A multiplier to increase or decrease the transformation.

ArcBallExt.fillMat()→ None:

Utility function used by the ArcBall.