Hi everyone! I'm using TileCache + MapServer + OpenLayers and trying to publish a WMS from Geotiff in Mercator (EPSG:900913). I'm having difficulties and the result is not that I expect. Below are the different parts of my problems.
Bathymetry.tif ================================ Geotiff file in EPSG:900913 Corner Coordinates: Upper Left (-5038852, 5970000) Lower Left (-5038852, 3420000) Upper Right (-1412452, 5970000) Lower Right (-1412452, 3420000) WMS.map ================================ MAP NAME "WMS-test" STATUS ON SIZE 600 400 # its The same extend that the file Bathymetry.tif in projected coordinates. Have to be in geographic? EXTENT -5038852 3420000 -1412356 5970000 # Bathymetry.tif extend in geographic coordinates # EXTENT -45.26477766016219 29.347893202612525 -12.687409814179109 47.1708141841107 UNITS METERS SHAPEPATH "/data/coverages/zoomazores/" IMAGECOLOR 255 255 255 OUTPUTFORMAT NAME png24 DRIVER "GD/PNG24" MIMETYPE "image/png" IMAGEMODE RGB EXTENSION "png" END WEB METADATA "wms_title" "WMSDemo" "wms_onlineresource" "http://localhost/cgi-bin/mapserv?map=/var/www/mapserver/WMS.map"; "wms_srs" "EPSG:900913" "wms_format" "image/png" END END PROJECTION "init=epsg:900913" END LAYER NAME "bathymetry" # The same extend that the file Bathymetry.tif in projected coordinates. EXTENT -5038852 3420000 -1412356 5970000 # Bathymetry.tif extend in geographic coordinates # EXTENT -45.26477766016219 29.347893202612525 -12.687409814179109 47.1708141841107 # Mercator full extend in projected coordinates. # EXTENT -20037508.34 -20037508.34 20035017.34 20035017.34 METADATA "wms_title" "bathymetryshaded" END TYPE RASTER STATUS ON DATA "Bathymetry.tif" PROJECTION "init=epsg:900913" END END END Tilecache.cfg ================================ [bathymetryshaded] size = 256,256 srs = EPSG:900913 type = WMS url = http://localhost/cgi-bin/mapserv?map=/var/www/mapserver/WMS.map layers = bathymetryshaded mapfile = /var/www/mapserver/WMS.map # bbox = -20037508.34, -20037508.34, 20035017.34, 20035017.34 # bbox = -45.26477766016219,29.347893202612525,-12.687409814179109,47.1708141841107 bbox = -5038852, 3420000, -1412356, 5970000 extension = png # extent_type = loose levels = 11 maxresolution = 7083 ## maxResolution = (max-X – min-X) / 512 # maxresolution = 1222.992452344 # google metaTile=true tms_type=google spherical_mercator=true 1 Request URL ================================ http://localhost/cgi-bin/tilecache.cgi?LAYERS=bathymetryshaded&SERVICE=WMS&SRS=EPSG:900913&BBOX=-5038852, 3420000, -1412356, 5970000 # PROBLEM (1) An error occurred: can't find resolution index for 14166.000000. Available resolutions are: [156543.03390000001, 78271.516950000005, 39135.758475000002, 19567.879237500001, 9783.9396187500006, 4891.9698093750003, 2445.9849046875001, 1222.9924523437501, 2 Request URL ================================ http://localhost/cgi-bin/tilecache.cgi?LAYERS=bathymetryshaded&SERVICE=WMS&SRS=EPSG:900913&BBOX=-20037508.34, -20037508.34, 20035017.34, 20035017.34 # PROBLEM (2) # The image (SIZE 600 400) that I can visualize in the browser is white having inside my data in a small really part. OpenLayers ================================ function init(){ var maxbounds = new OpenLayers.Bounds(-20037508.34,-20037508.34, 20037508.34, 20037508.34); zoomBbox = new OpenLayers.Bounds(-5038852, 3420000, -1412356, 5970000); var options = { controls: [], maxExtent: maxbounds, restrictedExtent: zoombounds, projection: new OpenLayers.Projection('EPSG:900913'), units: 'metres', minZoomLevel:7, maxZoomLevel:17, numZoomLevels:10, maxResolution: 1222.992452344 }; map = new OpenLayers.Map('map', options); var tiled = new OpenLayers.Layer.TileCache( "teste", "http://localhost/cgi-bin/tilecache.cgi?";, { layers: 'bathymetryshaded', format: 'image/png', srs: 'EPSG:900913', serverResolutions: [1222.992452344, 611.496226172, 305.748113086, 152.874056543, 76.437028271, 38.218514136, 19.109257068, 9.554628534, 4.777314267, 2.388657133, 1.194328567], tileSize: new OpenLayers.Size(512,512) }, { isBaseLayer: true } ); map.addLayers([tiled]); map.zoomToExtent(zoomBbox); } # PROBLEM (3) # I only can see transparent tiles, there is not map. Questions ================================ Is it possible to specify the bbox on projected coordinates in tilecache.cfg file? Am I missing something? It's a good approach? I think until the MapServer side it's right because it can show the image on the browser with the following request: http://localhost/cgi-bin/mapserv?map=/var/www/mapserver/WMS.map&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&LAYERS=bathymetryshaded&STYLES=&SRS=EPSG:900913&BBOX=-3586380.0348868947,4286595.390705814,-2690369.4534918354,4996719.237946053&WIDTH=600&HEIGHT=400&FORMAT=image/png I tried creating the tiles with the tilecache_seed, specifying the -bbx option, but I only get withe/transparent tiles. Its related with the problem (2) our (3) Right now I have no ideas on how to solve it and so I feel lost. I will really appreciate some help. Thanks in advance! Oscar _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
