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</o:shapelayout></xml><![endif]--></head><body lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I’m using MapServer to generate tiles to overlay on a GoogleMaps base layer.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>My data files are WGS84 shapefiles.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>So my current mapfile was looking like :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='background:silver;mso-highlight:silver'>MAP<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt;text-autospace:none'><i><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>PROJECTION "init=epsg:3785" END<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>LAYER<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt;text-autospace:none'><i><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>PROJECTION "init=epsg:4326" END<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>END<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>END</span></i><i><span style='font-size:10.0pt;font-family:"Lucida Console"'><o:p></o:p></span></i></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I was wondering about improving response time by disabling on-the-fly projection. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>So I did pre-project my shp into spherical Mercator first.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>And my new mapfile now looks like :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><i><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>MAP<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>PROJECTION "proj=merc" "a=6378137" "b=6378137" "lat_ts=0.0" "lon_0=0.0" "x_0=0.0" "y_0=0" "k=1.0" "units=m" "nadgrids=@null" "no_defs" END<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>LAYER<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>END<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>…<o:p></o:p></span></i></p><p class=MsoNormal style='margin-left:35.4pt'><i><span style='font-size:10.0pt;font-family:"Lucida Console";background:silver;mso-highlight:silver'>END<o:p></o:p></span></i></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I do get the same tiles.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>But when asking a single tile using both mapfile, I noticed that the response time was higher (about +10%) when the second mapfile was used !<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Do you have any idea about what’s going on ?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks & Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Clément<o:p></o:p></span></p></div></body></html>