[ka-Map-users] User Interaction to select features

[Paul Spencer]

Brent,

I've got a working implementation of a single click query (issues a  
KAMAP_CLICKED event) but I haven't committed it yet because I haven't  
decided how to deal with double clicks (which trigger a single click  
event first).

I've also got a broken implementation of  
KAMAP_METAEXTENTS_CHANGED ... well, it works but my getMetaExtents  
function returns broken extents right now.

I'm currently on the road so I don't expect to commit it this  
week ... but hey, who knows :)

Cheers

Paul

On 6-Mar-06, at 5:29 PM, Brent Pedersen wrote:

> hi, i'll chime in on this because its the type of stuff i deal with  
> exclusively when dealing with ka-map. re your 1 and 2
> 1) as you said, see recent threads. also i just found this lib  
> today: http://solardreamstudios.com/learn/css/qtip/
> it would be nice to see a generic setup encompassing the  
> addObjectGeo with the getMetaExtents and the proposed  
> META_EXTENTS_CHANGED kamap event with a lite tooltip library!
> if it doesn't "magically" appear soon, i'll give it a go.
>
> 2) look in the archives for an implementation of kaTool.js that  
> allows you to do a single point query without switching otu of  
> navigation mode. non-point queries would still require a switch to  
> the query mode. in the relevant thread, there was some talk of  
> supporting shift or alt clicks to allow rectangular queries.
>
> so i guess if you can implement a shift+click or alt+click to  
> switch indicate a block query rather than a pan, that would be the  
> best bet. i have no idea how to do that off hand.
>
>
> On 3/6/06, Jason Suwala < jsuwala at hatfieldgroup.com> wrote: Hi All  
> ka-Mapers:
>
> I am currently trying to brain-storm various user interaction  
> methods for
> selecting features on a web-based map. With all this discussion about
> putting markers on a map, I thought I would ask the list if they  
> had any
> further thoughts on this.
>
> >From what I've seen so far, there are 2 main methods for selecting  
> features
> on a web-based map:
> 1) putting a discreet "balloon" above the point (like Google Maps)
> 2) choosing a "feature select tool" from a tool palette which shows a
> rubber-band encompassing the region to query for features.
>
> >From a user interaction viewpoint, method 1 is simpler because the  
> actions
> are discreet - mouse click to query, mouse drag to pan. For method 2,
> selecting a tool is necessary because the mouse drag action is used  
> for both
> querying and panning. So I would state that the first method is  
> more usable
> by non-technical users, however, it is constrained by only allowing
> individual discreet points to be queried. The second method is  
> harder to
> use, but can query any range of features.
>
> So my question is: do you know of any other user interactions that  
> are easy
> for non-technical users to use, and can query any range of features?
>
>
> Cheers,
> - Jason
>
>
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|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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