[ka-Map-users] Re: mouse quest

Zeppe taroza at gmail.com
Tue Oct 31 07:08:38 EST 2006

Hi Percy,
yes, OpenLayers library seems really promising. I think I will follow 
you, and move my client side to OpenLayers by leaving ka-Map to do 
tiling. I will look at it today, and probably will have some questions 
about integrating the two.


percy wrote:
> Zeppe,
> There were enough little annoyances that looked they would take a long 
> time to fix and a lot of custom programming that I decided to go with 
> OpenLayers as the front end interface to my KaMap backend "tiling machine".
> This gives a much more googlemaps-ish interface, and Paul Spencer 
> blessed the union back in the Summer :-)
> My understanding is that kamap is positioning itself as a tiling 
> mechanism, perhaps the one that satisfies the description at 
> http://wiki.osgeo.org/index.php/Tile_Map_Service_Specification
> :-)
> Here's a site that I am using to test the latest code from CVS,
> http://geospatial.research.pdx.edu/~bjpd/openlayers/examples/ngmdb4.html
> We'll be putting a version on the USGS production site within the next 
> week or two at http://ngmdb.usgs.gov/ngm_compsearch_map.html, replacing 
> the kamap IFrame that you see there and adding a bunch of "AJAX-y" stuff 
> like immediate updated number of hits in the database for the current 
> search criteria.
> Basically every time the user moves the map or zooms, the extents are 
> updated a query is sent off to the database to find out how many records 
> we have for that area.
> Let me know if you want more info on OpenLayers/Kamap config. I actually 
> promised to put something together, and have been remiss in doing so!
> Cheers,
> Percy
>> Message: 1
>> Date: Mon, 30 Oct 2006 03:46:52 +0100
>> From: Zeppe <taroza at gmail.com>
>> Subject: [ka-Map-users] mouse quest
>> To: ka-map-users at lists.maptools.org
>> Message-ID: <4545679C.1070505 at gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>> Hi everyone,
>> I don't know how about you, but I really don't like the mouse 
>> behaviour in ka-map. At least the way it is implemented in kaNavigator.
>> First I can't set the cursor in FireFox. When it is cursor:move in 
>> stylesheet it activates only when I am on the border of the map viewport.
>> Second and the most annoying thing is when mousepressed and you drag 
>> it outside the map viewport, then try to comeback with mouseup 
>> kaNavigator treats it as the mouse is pressed and drags it further 
>> with jumping efekts.
>> Third kaNavigator has such implementation for mouseout:
> snip...
>> Well, I've been struggling with these three problems for the whole day 
>> but in vain. Basically, what I wanted to do is to make mouse behave 
>> like in GoogleMaps: you drag the map until mouseup.
>> Is there anyone who has a clue about solutions for these problems? 
>> I've looked up many examples in ka-map wiki, but no one has approached 
>> these problems.
>> Thanks in advance, guys
>> Zeppe

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