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<div class="moz-cite-prefix">Hi,<br>
<br>
Thomas Bonfort wrote on 06/06/2013:<br>
</div>
<blockquote
cite="mid:CAOM3y2i1DXz=aL49SZCUYrC+DPVt6VmBx0U9fOqEq=4z1qnACg@mail.gmail.com"
type="cite">
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<div dir="ltr">As for the root issue, are your tilesets fully
preseeded or are they populated on demand? KML superoverlays are
organized in a tree, i.e. to access a tile at zoom level N you
first need to access all parent tiles from level 0 to N-1; on an
unseeded tileset with a slow wms backend this might be a very
long wait. Also please check the apache error log for any
mapcache related messages.</div>
</blockquote>
<br>
Thanks for the input! Sorry for the delayed reply. My tiles had been
populated on demand but I finally found, installed, and ran
"mapcache_seed". It's now been running for 10+ hours now (*) but I
still get the same effect in Google Earth. (A very low-resolution
view displays when I'm zoomed out very far, but disappears as soon
as I try to zoom in.) Does the seeding have to be completely
finished before Google Earth can see beyond the top-level KML tiles?<br>
<br>
Thanks again.<br>
<br>
- John E.<br>
<br>
(*) I'm running this on a fairly puny virtual machine (2 cores); I
guess I should try seeding with 8 or 10 threads on an 8-core
machine. I will also try limiting my zoom levels (I suspect I'm
seeding 0-17 by default) and my spatial extent (I'm probably doing
the whole globe by default -- lots of blank tiles :-).<br>
<br>
<blockquote
cite="mid:CAOM3y2i1DXz=aL49SZCUYrC+DPVt6VmBx0U9fOqEq=4z1qnACg@mail.gmail.com"
type="cite">
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On 6 June 2013 05:19, John D. Evans <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:john.evans@gst.com" target="_blank">john.evans@gst.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
Not sure my earlier query made it to the list.<br>
<br>
I'm using MapCache to serve for some satellite image
products. It sort of works: the tms and wmts browsers at
/mapcache/demo show full coverage of my data area, and let
users zoom in to see full resolution image mosaics. But the
KML superoverlay (my reason for using MapCache) only
displays in Google Earth when I'm zoomed very far out (so
that the entire globe is not much bigger than a golf ball on
my screen). If I zoom in, the image usually disappears;
though sometimes when zoomed in I do see [only] the right
(east) half of my tileset, at a very low resolution.<br>
<br>
Do you see anything wrong with my mapcache.xml (below)?<br>
Is there anything else I should be checking?<br>
<br>
(I'm using a simple disk cache in /tmp, with mod_mapcache
from the Ubuntu libmapcache 1.0.0-3 package; Mapserver 6.2.1
is on the same machine, running in 64-bit Ubuntu 12.04.
Mapserver works fine, and reports no errors [I think]. My
client is Google Earth 7.)<br>
<br>
Thanks for taking a look,<br>
<br>
- John D. Evans<br>
GST, Inc / Greenbelt, MD<br>
<br>
Below is my mapcache.xml file (actually an excerpt of it:<br>
the real one has more tilesets and sources).<br>
<br>
<mapcache><br>
<metadata><br>
<title>my mapcache service</title><br>
<abstract>woot! this is a service
abstract!</abstract><br>
</metadata><br>
<br>
<cache name="disk" type="disk"><br>
<base>/tmp</base><br>
<symlink_blank/><br>
</cache><br>
<br>
<format name="PNG_BEST" type ="PNG"><br>
<compression>best</compression><br>
</format><br>
<format name="PNG_FAST" type ="PNG"><br>
<compression>fast</compression><br>
</format><br>
<br>
<source name="CSPP_CloudPhase" type="wms"><br>
<http><br>
<url><a moz-do-not-send="true"
href="http://localhost/cgi-bin/mapserv" target="_blank">http://localhost/cgi-bin/mapserv</a>?</url><br>
</http><br>
<getmap><br>
<params><br>
<FORMAT>image/png</FORMAT><br>
<LAYERS>iicmocp_daily</LAYERS><br>
<MAP>/raid/maps/viirs.map</MAP><br>
</params><br>
</getmap><br>
</source><br>
<br>
<tileset name="CSPP_Cloud_Phase_EDR"><br>
<metadata><br>
<title>VIIRS Cloud Phase from NASA GSFC
DRL</title><br>
<abstract>Detailed description goes
here</abstract><br>
</metadata><br>
<source>CSPP_CloudPhase</source><br>
<cache>disk</cache><br>
<format>PNG</format><br>
<grid>WGS84</grid><br>
<metatile>2 2</metatile><br>
<expires><a moz-do-not-send="true"
href="tel:3600" value="+333600" target="_blank">3600</a></expires><br>
<auto_expire><a moz-do-not-send="true"
href="tel:3600" value="+333600" target="_blank">3600</a></auto_expire><br>
<!-- <metabuffer>10</metabuffer> --><br>
</tileset><br>
<br>
<default_format>PNG_FAST</default_format><br>
<br>
<service type="wms" enabled="true"><br>
<full_wms>assemble</full_wms><br>
<resample_mode>bilinear</resample_mode><br>
<format>PNG_FAST</format><br>
<!-- <maxsize>4096</maxsize> --><br>
</service><br>
<br>
<service type="wmts" enabled="true"/><br>
<service type="tms" enabled="true"/><br>
<service type="kml" enabled="true"/><br>
<service type="gmaps" enabled="true"/><br>
<service type="ve" enabled="true"/><br>
<service type="demo" enabled="true"/><br>
<br>
<lock_dir>/tmp</lock_dir><br>
<errors>report</errors><br>
<threaded_fetching>true</threaded_fetching><br>
<br>
</mapcache><br>
_______________________________________________<br>
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href="http://lists.osgeo.org/mailman/listinfo/mapserver-users"
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</blockquote>
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