[Geoprisma-dev] Initial page load generate multiple WMS request, one with bad params

[Alexandre Dube]

Hi Steve,

  The first load is definitively not normal (5000 ??).  I'll try to take 
a look at it.

  About the "initial map extent" behavior, when using the InitialView 
widget, it's normal to have 2 calls to the server, 1 for the initial 
extent in the template and one for the actual "initial zoom" of the 
feature we want to be zoomed to.  Otherwise, we should always have one 
and only one call.

  I just looked at your sample and I only see 2 calls, one with the 
width=5000 and the one we want (not full extent)

  Try to add this in your template and tell me what it does.

      if(!oMap.getCenter())
      {
          // your setCenter stuff
      }

Regards,

Alexandre

Stephen Woodbridge wrote:
> Hi,
>
> I was checking the apache logs while running the above url and on 
> inital load of the page I am getting three WMS requests.
>
> http://imaptools.com:8080/project/myproj2/
>
> 1) has a bogus image size (WIDTH=5000&HEIGHT=775) and fails because it 
> exceeds the default image max size which I think it 2000 in mapserver. 
> But if it succeeded this would be bad from a performance point of view 
> and tie up a lot of memory and resource computing the image.
>
> http://imaptools.com:8080/project/myproj2/proxy.php?osmservice=S_WMS_IMT_MS&osmtoken=TODO%20Delete%20this&osmresource[]=R_ONEMILEETJ&osmresource[]=R_LAKES&osmresource[]=R_PARCELS&osmresource[]=R_RAILROAD&osmresource[]=R_FMROADS&osmresource[]=R_SERVICEROADS&osmresource[]=R_STREETS&osmresource[]=R_HIGHWAYS&osmresource[]=R_INTERSTATE&osmresource[]=R_VOTINGPRECINCTS&osmresource[]=R_ZONING&FORMAT=image%2Fpng&TRANSPARENT=false&LAYERS=onemileetj,lakes,parcels,railroad,fmroads,serviceroads,streets,highways,interstate,votingprecincts,zoning&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A900913&BBOX=-195678792.375,-30330212.818125,195678792.375,30330212.818125&WIDTH=5000&HEIGHT=775 
>
>
> 2) the next request appears to be at the maximum extents extents of 
> the world but not those defined in the map widget extents, but with 
> the correct viewport what I'm guessing is the correct viewport size of 
> 610x610 although I'm not sure how it cam up with that number unless by 
> some random chance that the browser geometry just happened to make it 
> square.
>
> http://imaptools.com:8080/project/myproj2/proxy.php?osmservice=S_WMS_IMT_MS&osmtoken=TODO%20Delete%20this&osmresource[]=R_ONEMILEETJ&osmresource[]=R_LAKES&osmresource[]=R_PARCELS&osmresource[]=R_RAILROAD&osmresource[]=R_FMROADS&osmresource[]=R_SERVICEROADS&osmresource[]=R_STREETS&osmresource[]=R_HIGHWAYS&osmresource[]=R_INTERSTATE&osmresource[]=R_VOTINGPRECINCTS&osmresource[]=R_ZONING&FORMAT=image%2Fpng&TRANSPARENT=false&LAYERS=onemileetj,lakes,parcels,railroad,fmroads,serviceroads,streets,highways,interstate,votingprecincts,zoning&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A900913&BBOX=-23872812.66975,-23872812.66975,23872812.66975,23872812.66975&WIDTH=610&HEIGHT=610 
>
>
> 3) the final image you see after the browser is done loading. This 
> third request might be because I added a map.setcenter() call to the 
> template.
>
> http://imaptools.com:8080/project/myproj2/proxy.php?osmservice=S_WMS_IMT_MS&osmtoken=TODO%20Delete%20this&osmresource[]=R_ONEMILEETJ&osmresource[]=R_LAKES&osmresource[]=R_PARCELS&osmresource[]=R_RAILROAD&osmresource[]=R_FMROADS&osmresource[]=R_SERVICEROADS&osmresource[]=R_STREETS&osmresource[]=R_HIGHWAYS&osmresource[]=R_INTERSTATE&osmresource[]=R_VOTINGPRECINCTS&osmresource[]=R_ZONING&FORMAT=image%2Fpng&TRANSPARENT=false&LAYERS=onemileetj,lakes,parcels,railroad,fmroads,serviceroads,streets,highways,interstate,votingprecincts,zoning&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&SRS=EPSG%3A900913&BBOX=-10750132.512901,3763907.2951822,-10726819.219279,3787220.588805&WIDTH=610&HEIGHT=610 
>
>
>
> If this sounds like a bug, let me know and I will write a ticket for it.
>
> Thanks,
>   -Steve
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-- 
Alexandre Dubé
Mapgears
www.mapgears.com