Re: [Matplotlib-users] Navigation toolbar redraw button

[Charles R. T. <cha...@in...>]

Hi John,

New navbar sounds good, esp. replacing arrows with hand. Default to hand
mode (maybe even revert after completing an operation with other modes).
I'm not so happy with all the modifier keys.

I'd have one modifier key, Shift, that constrains the motion, and
everything be drag-based:
	* In pan mode, Shift drag restricts motion to whichever the
	  principle  mouse direction is. I can keep it within 45 degrees
	  myself, and this allows me to easily change x, then y.

	* In zoom mode, Shift drag zooms along principle mouse
	  direction. Otherwise zooms as radial distance of drag.
	  Mousewheel zoom zooms both axes.

	* Zoom rectangle: Shift-drag maintains axis ratio in
	  drawing the rectangle.


I might even suggest replacing the "pan" and "zoom" buttons by just using
left-click and right-click for the drag. That way I can change tasks
without mousing around. Zoom-rectangle could even be middle-click.

-Charles

-- 
Charles R. Twardy                    www.csse.monash.edu.au/~ctwardy
Monash University                    sarbayes.org
Computer Sci. & Software Eng.
+61(3) 9905 5823 (w)  5146 (fax)