RE: Hi to everyone

Hi MARTIJN:

This is my code:

    private void processMap(HttpServletRequest request, HttpServletResponse
response)
    throws ServletException, java.io.IOException {
        MapRequestHandler map =
(MapRequestHandler)hsMaps.get((String)request.getSession().getId());

        com.bbn.openmap.proj.LLXY llxyAux =
(com.bbn.openmap.proj.LLXY)map.getDefaultProjection();
        llxyAux.setScale(llxyAux.getScale()-1000000);
             hsMaps.put((String)request.getSession().getId(),
(MapRequestHandler)map);
        response.sendRedirect("http://localhost:8080/gis/index.jsp");
    }

I have a MapRequestHandler object for each session and I store them in a
Hashtable indexed by Session ID. I obtain the object and then from it I
recover the LLXY projection. Then I try to set the new Scale (now as I am in
tests, just downsizing it) and then I overwrite (to avoid possible fails
here) again in the hashtable. After this I redirect the flow to a JSP wich
has a img tag calling the servlet, and then it will execute this code:

          MapRequestHandler map =
(MapRequestHandler)hsMaps.get((String)request.getSession().getId());
        response.setContentType("image/gif");
 
response.getOutputStream().write(map.createImage(map.getDefaultProjection())
);
        response.flushBuffer();

Thanks in advance for your help

-----Original Message-----
From: MARTIJN VAN DER PAUW [mailto:martijnp@meteocon.nl]
Sent: viernes, 02 de agosto de 2002 13:17
To: Williams, Leonidas (IndSys, GEPC); owner-openmap-users@bbn.com
Subject: Re: Hi to everyone

Could you show me some code. After a setScale();

I am using the
 .getMapImage(Projection); on the imageserver
method. That works fine. It returns a byte array that you can write
to the outputstream. So, in my servlet app I use the imageserver.

If you have further questions, you could ask me those.

Martijn

Op 2 Aug 02, om 14:20, Williams, Leonidas (IndSys, GEPC)
schreef:

> Hi to everyone:
>
> I am implementing a servlet version with OpenMap. I have the servlet that
> builds the image and send it to the HTML page, so all is working fine.
>
> My problem is that I am not able to execute a ZoomIn operation. I tried to
> modify the Scale attribute in the projection object in the
> MapRequestHandler, but no change is produced. What am I doing bad?? Should
> I use the WMSPlugIn?? How should I setup this plugin??
>
> Any help would be thank a lot.
>
> Thank you to everybody and regards
>
> --
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Martijn van der Pauw, internetontwikkelaar.
Meteo Consult
martijn@weer.nl
tel: 0317 - 399800
fax: 0317 - 423164
http://www.weer.nl

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