I like the behavior of other vector drawing software I've used where a modifier key suspends the behavior of the activated tool or temporarily activates another.

For example, in Illustrator, the space bar temporarily activates the Hand Tool (for dragging) while drawing. This makes for fast drawing/navigating and I think there are a lot of folks that already work with this type of environment.

I know Google does it differently, but I don't necessarily think we have to follow.

Tim

On 1/12/11 8:58 AM, Bruno Binet wrote:
On 12 January 2011 16:15, Andreas Hocevar<ahoce...@opengeo.org>  wrote:
On Jan 12, 2011, at 14:15 , Eric Lemoine wrote:

On Wed, Jan 12, 2011 at 1:22 PM, Andreas Hocevar<ahoce...@opengeo.org>  wrote:
Hi Eric,

thanks for your efforts. My only concern is that adding vertices on mouseup 
instead of mousedown negatively affects the user experience when a Snapping 
control is used. This is because the user doesn't see any more where the vertex 
is going to be snapped to.

At this point, I have no idea how to solve this.

Could you please elaborate? Do you see ux issues on
<http://dev.openlayers.org/sandbox/elemoine/draw-feature/examples/snapping.html>?

Yes. Placing the first vertex of a line (in the example) or a point (in 
general) is a shot in the dark - you never know where it snaps to.

I agree, but we may adapt the snapping control to overcome this
limitation. By example we could show a sketch point when the mouse
pointer is located in a snapping area.

Andreas.


Thanks,





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Tim Schaub
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