[Tilecache] Re solutions issues

[Yves Moisan]

Frederic,

Thanx for spotting those typos.  That did not solve the issue,
unfortunately.

Yves

Frederic Junod wrote:
> 
> Yves,
> 
> You seems to have some errors in your tilecache.cfg:
>   resolutions:96,48,32,24,12,6,3,1.5,0.6,0.25
> should be 
>   resolutions=96,48,32,24,12,6,3,1.5,0.6,0.25
> ':' vs '='
> 
> and 'BBOX' should be 'bbox' (the options keys are case sensitive)
> 
> 
> fredj
> 
> Le Thu, 30 Oct 2008 06:04:22 -0700 (PDT),
> Yves Moisan <yves.moisan at boreal-is.com> a écrit :
> 
>> 
>> Hi All,
>> 
>> I am fighting to get TileCache to work.  I did it in the past, but I
>> suspect
>> now the issue has to do with the 900913 projection.  Files :
>> 
>> tilecache.cfg :
>> 
>> [cache]
>> type=Disk
>> base=c:/mapping_data/tilecache/
>> 
>> ..
>> 
>> [Ikonos]
>> type=WMS
>> srs=EPSG:29194
>> #BBOX=-19000000,-8000000,19000000,19000000
>> BBOX=-4093623,-1086705,-4083992,-1077571
>> #BBOX=-4094656,-1086705,-4083992,-1077571
>> url=http://myserver:8292/cgi-bin/mapserv.exe
>> extension=png
>> #resolutions=256,128,64,32,24,16,8,4,2,1,0.5,0.25
>> #resolutions:192,96,48,24,12,6,3,1.5,0.75,0.375,0.25
>> resolutions:96,48,32,24,12,6,3,1.5,0.6,0.25
>> extent_type=loose
>> metaTile=true
>> 
>> You can see I tried a few options ...
>> 
>> html file :
>> 
>>            options = {
>>                  maxExtent:  new OpenLayers.Bounds(-19000000, -8000000,
>> 19000000, 19000000),
>>                       //maxExtent: new
>> OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
>>                       //numZoomLevels: 14,
>>                       numZoomLevels: 16,
>>                    //   maxResolution: 156000,
>>                       minScale: 110000000,
>>                       resolutions:[96,48,32,24,12,6,3,1.5,0.6,0.25],
>>                       controls: [],
>>                       units: 'm',
>>                       projection: new
>> OpenLayers.Projection("EPSG:900913"),
>>                       displayProjection: new
>> OpenLayers.Projection("EPSG:4326")
>>                       };
>>            
>>             map = new OpenLayers.Map('map', options);
>> 
>> ...
>> 
>>             var Ikonos_TC = new OpenLayers.Layer.WMS(
>>                        "Ikonos TC",  
>>                        "http://myserver:8292/tilecache/tilecache.cgi",
>>                        {layers: 'Ikonos',
>>                         transparent: 'false',
>>                         srs: 'EPSG:29194',
>>                         format: 'image/png'},
>>                        {isBaseLayer: 'true',
>>                         buffer:0,
>>                         transitionEffect:'resize'});  
>>                        
>>             map.addLayer(Ikonos_TC);
>> 
>> and the map file :
>> 
>> ...
>> #  IMAGETYPE PNG24
>>   IMAGETYPE jpeg
>>   IMAGECOLOR 255 255 255
>>   UNITS meters                                                                
>>   #FONTSET '../etc/fonts.txt'    
>>   SHAPEPATH ...\WEB-INF\classes\module\maps\data\'
>>   #SYMBOLSET '../etc/symbols.sym'
>>  ...  
>>   PROJECTION
>>    "init=epsg:900913"
>>    END
>> 
>> ...
>> 
>> LAYER
>>   NAME Ikonos
>>   GROUP "Imagery"
>>   PROJECTION
>>    "init=epsg:29194"
>>   END
>>   TYPE RASTER
>>   DUMP FALSE
>>   STATUS ON
>>   DATA "ARAPIRACA_IKONOS_2007NOV25.TIF"
>>  
>>   METADATA
>> 
>>     # OGC:WMS specific tags
>>     "ows_title"    "Ikonos"
>>     #"ows_abstract"    "Ikonos 3 colors, 1 m"
>>     "ows_keywordlist"    "PHOTO"
>>     "wms_opaque"    "1"
>>     "ows_srs" "EPSG:900913"
>>     "wms_group_title" "Imagery"
>>     "wms_group_abstract" "Imagery layers"
>>     "wms_resx" "0.17578125"
>>     "wms_resy" "0.17578125"
>>     "ows_extent" "751977.182 8949542.880 740606.182, 8925969.880"
>>     "ows_metadataurl_type" "FGDC"
>>     "wms_metadataurl_format" "text/html"
>>     "ows_metadataurl_href" ""
>>     "wms_dataurl_format" "image/tiff"
>>     "wms_dataurl_href" ""
>>   END
>> END #layer Ikonos
>> 
>> I know there are a few parameters there that are probably redundant, but
>> at
>> any rate that layer works (MapServer projects the image from its src SRS
>> to
>> 900913) if I call the WMS service directly.  It does not work (pink
>> tiles,
>> then "An error occurred: Current x value -4094656.000000 is too far from
>> tile corner x -4093623.000000" type messages) when I use TileCache.
>> 
>> I can see the c:/mapping_data/tilecache directories are created, but that
>> is
>> it.  If I tweak the x and y to satisfy the error messages, then I get a
>> "can't find resolution index for 19.964844. Available resolutions are:
>> [96.0, 48.0, 32.0, 24.0, 12.0, ..." type message.  What should I look for
>> and how I should I go about debugging this ?
>> 
>> TIA,
>> 
>> Yves Moisan
> 
> 
> -- 
> Frédéric Junod
> Camptocamp SA
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> 
> 

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