<br><div class="gmail_quote"><span style="font-family: tahoma,sans-serif;">Hi All,</span><br><span style="font-family: tahoma,sans-serif;"><br>Sorry for sending this twice, I believe the attachment was too big last time?</span><br style="font-family: tahoma,sans-serif;">
<br style="font-family: tahoma,sans-serif;"><span style="font-family: tahoma,sans-serif;">I seem to have a problem with mod_tile / mapnik ect predicting global warming in the UK. </span><br style="font-family: tahoma,sans-serif;">
<br style="font-family: tahoma,sans-serif;"><span style="font-family: tahoma,sans-serif;">Before I start to explain, please see the following links.</span><br style="font-family: tahoma,sans-serif;">
<br style="font-family: tahoma,sans-serif;"><span style="font-family: tahoma,sans-serif;"><a href="http://maps.4d.m4.net/osm_tiles2/10/513/334.png" target="_blank">http://maps.4d.m4.net/osm_tiles2/10/513/334.png</a> </span><br style="font-family: tahoma,sans-serif;">
<span style="font-family: tahoma,sans-serif;"><a href="http://maps.4d.m4.net/osm_tiles2/13/4126/2732.png" target="_blank">http://maps.4d.m4.net/osm_tiles2/13/4126/2732.png</a></span><br style="font-family: tahoma,sans-serif;">
<span style="font-family: tahoma,sans-serif;"><a href="http://maps.4d.m4.net/osm_tiles2/12/2033/1370.png" target="_blank">http://maps.4d.m4.net/osm_tiles2/12/2033/1370.png</a></span><br style="font-family: tahoma,sans-serif;">
<span style="font-family: tahoma,sans-serif;"><a href="http://maps.4d.m4.net/osm_tiles2/12/2034/1352.png" target="_blank">http://maps.4d.m4.net/osm_tiles2/12/2034/1352.png</a></span><br style="font-family: tahoma,sans-serif;">
<br style="font-family: tahoma,sans-serif;">
<br style="font-family: tahoma,sans-serif;"><span style="font-family: tahoma,sans-serif;">Basically it looks like wherever an inland tile contains water such as a lake, or river the surrounding tiles all have a blue background, thus making the land look under water. Everything else still renders on top of this 'water', so roads and buildings are still visible. I have so far been unable to find a trend in where this appears. The only thing I have noticed is it appears in zoom levels higher than 10 (by higher I mean numerically higher, not altitude).</span><br style="font-family: tahoma,sans-serif;">
<br style="font-family: tahoma,sans-serif;"><span style="font-family: tahoma,sans-serif;">I've had my rendering server running for a good 3 months now, and the only problem I had with it was that within the last month mod_tile took an age to return anything, even if the tile was fresh. One thing I did try was to run render_all which comes with mod_tile because I forgot to add that to a weekly cron. I slightly modified it to:</span><br>
<br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">#!/bin/bash</span><br style="font-family: courier new,monospace;"><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">for z in `seq 0 18`</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">do</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> (/home/richard/software/mod_tile/render_old -z $z -Z $z -n 4 &> render.txt) &</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">done</span><br><br style="font-family: tahoma,sans-serif;" clear="all"><span style="font-family: tahoma,sans-serif;">This solved the speed issue, but also caused the 'flooding' - I assume.</span><br style="font-family: tahoma,sans-serif;">
<br style="font-family: tahoma,sans-serif;"><span style="font-family: tahoma,sans-serif;">If you need any further details please ask.</span><br style="font-family: tahoma,sans-serif;"><br style="font-family: tahoma,sans-serif;">
<span style="font-family: tahoma,sans-serif;">Thanks for you help in advance.</span><br style="font-family: tahoma,sans-serif;"><font color="#888888"><span style="font-family: tahoma,sans-serif;"></span></font><br></div>
-- <br>Regards,<br>Richard Ive.<br>