CSC428H1 Chapter Notes - Chapter 3: Interaction Technique, Wysiwyg, Scrollbar
Document Summary
3d 6 degrees of freedom (dof) 3 dof for orientation ( x, y, z) Soft controls are also displays blurs display-control distinction. Congruent spatial mapping = exact spatial correspondence btwn the controller input and the display output, natural. Ex. x-axis of the mouse and display = congruent mapping mouse moves left/right the cursor moves left/right. Transformed spatial mapping = some transformation btwn the controller input and the display output, learned. Ex. the z-axis of the mouse, and y-axis of the display = transform mapping mouse moves forward/back, cursor moves up/down. Axis labels, use to highlight control-display mappings (c) Z-axis = forward-back motion: cd gain = the amount of display movement for a given amount of controller movement, sometimes as a ratio c:d ratio. Ex. controller move 2cm = display move 4cm cd gain = 2. Third tier: (hard-soft)-control-display mapping ex. scrolling image. Hard-control: mouse, move forward = drag drag scrollbar up.
