[ka-Map-users] Dynamic points on the map, can you help please?

[The Bun]

Hi Daniel

Again my reply is not passed for some reason. Anyway I sorted out the server
side dynamic points, in a similar way as you suggested, starting with a
layer with no connection in the mapfile, I failed to have something fully
dynamic ( ie creating a layer on the fly ) but it is OK.



>  I used this approach and it works well, except I had to figure out how
>  to make mine dynamic for each user, since they did not want anybody else
>  seeing their data.
> 

Well, I have the same problem, each user may have ( and see ) different
points and the map. I thought of two solutions: One is to adapt the server
side to cache tiles for sessions instead for application but this may
compromise performances, server space and add complexity. The other one is
adding client side objects ( as you suggested in the other post ) and
implement everything in JavaScript, yes, because I don't only have to mashup
data I also need to query my dynamic data ( by clicking on the points for
example ) and showing extra text information, I mean I may need to expand
kamap class storing coordinates and texts and need to implement something
clever in order to show the text related to a point when the user click on
the point itself. I really don't know which direction to take .... what do
you think?

Anyway the discussion is open and I'd really appreciate any contribution.=)

Kind Regards
Rosario




Daniel.Huber wrote:
> 
> 
>> > _______________________________________________
>> > ka-Map-users mailing list
>> > ka-Map-users at lists.maptools.org
>> > http://lists.maptools.org/mailman/listinfo/ka-map-users
>> > 
>> > 
>> 
>> Hi Daniel,
>> 
>> I thought to a client solution at the beginning of my testing 
>> but that mean I need to get all the coordinates from the 
>> server and send HTTP request back from the client, it seemed 
>> to be not too good to me so for that reason I decided to test 
>> the possibility to create the image in tile.php included with 
>> my temporary layer just before the imgage is cached the first 
>> time, as my data are already available but may change for 
>> different sessions and then a server solution I thought it was ideal.
>> 
>> But believe me, I tested at least 100 variations of the code 
>> below and I couldn't see anything, noone of my point on the 
>> map, I guess maybe I need to have something pre-set in the 
>> mapfile? I am surely missing something, I don't know 
>> MapServer very well (that is the reason I am testing) but a 
>> syntax like this:
>> 
>> $point->draw($oMap, $point_layer, $image, 0, "");
>> 
>> for the mushups seems suspicious to me.
>> 
>> I have passed last two days trying and trying, nothing, I for 
>> sure haven't understood how the object model works as other 
>> people is able to do the same thing I am trying to do. I 
>> thing at the end I have to work around as you said, though I 
>> am not really happy of that as from kamap I only would like 
>> rely for things like zooming and panning, but the code seems 
>> to be easy and surely I'll have a go next Monday when I am 
>> back at work, if performances are good then I'll be happy. 
>> 
>> Thank you very much.
>> 
>> Rosario
>> 
>> 
>> --
> 
> 
> Rosario,
> 
> 
> If you want all the action to be server side, then your best bet will be
> to generate a new map file based on the data.  Start with a map file
> that already has the layer and symbol information declared, and then use
> php_Mapscript like you were to populate the data.  An example for this
> can be found
> here:http://mapserver.gis.umn.edu/cgi-bin/wiki.pl?PHPMapScriptAddPoint
> 
> I used this approach and it works well, except I had to figure out how
> to make mine dynamic for each user, since they did not want anybody else
> seeing their data.
> 
> Good luck,
> 
> Daniel
> 
>  
> 
> _______________________________________________
> ka-Map-users mailing list
> ka-Map-users at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/ka-map-users
> 
> 

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