<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have an issue which seems to relate to tile-edge buffering and world-view zoom levels.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>There's an example page at http://mapserver.magicsite.co.uk<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When you first visit the page, all seems normal, until you zoom out 1 level, at which point the tile which should sit over the west of the US doesn't display.<o:p></o:p></p><p class=MsoNormal>From what I can see, when tile-edge buffering is ON and the tile next tile wraps around the world, the tile in question is not rendered.<o:p></o:p></p><p class=MsoNormal>Turn edge-buffering off and that tile is rendered correctly. Unfortunately, I'm in a position where I can't turn the buffering off.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'>from the mapfile:<br><span style='font-size:9.0pt;font-family:"Courier New"'>WEB<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> METADATA<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> "wms_title" "xxxx"<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> "wms_onlineresource" "xxxx"<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> "wms_srs" "EPSG:4326"<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> "tile_map_edge_buffer" "9" # 9 pixel rendering buffer<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> "http_max_age" "86400"<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> END<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;font-family:"Courier New"'> END<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>As far as I can tell, everything else is working correctly. <o:p></o:p></p><p class=MsoNormal>What I'm not clear on - is this a bug in the edge buffering within the software, or am I doing something wrong?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The server running the example URL is currently using version 5.7-dev, but the same issue is also apparent on a production server running v6.0.2<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Interested to know if anyone else has experienced the same issue?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Charlie<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>--<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Charlie Allgrove<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Senior Developer<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Connection Services :: Business Mobility for a Wireless World<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Connection Services Ltd is a company incorporated under the laws of England and Wales with company number 6520674 whose registered office is at Griffins Court, 24-32 London Road, Newbury, Berkshire, RG14 1JX. The information in this e-mail and any attachments is confidential and may be legally privileged. It is intended solely for the addressee or addressees. If you are not an intended recipient, please delete the message and any attachments and notify the sender of misdelivery: any use or disclosure of the contents of either is unauthorised and may be unlawful. All liability for viruses is excluded to the fullest extent permitted by law. Any views expressed in this message are those of the individual sender. In accordance with the provisions of its Terms of Business the Company does not accept instructions or the creation of contractual obligations by unconfirmed electronic transmission.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>