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Hello, <br>
<br>
I'm trying to accomplish the same thing and I followed your advice -
using vector + BBOX, but I hit a snag - because my POI layer has a lot
of elements, I would like to enable this layer only for a certain zoom
level (when the user is really close). Is there some standard
functionality for a layer - making it visible (and doing the queries)
only from a zoom level onwards? <br>
<br>
If I try to fix things server-side (not returning anything if the zoom
is to low), openlayers will not query again because the zoomed BBOX is
included in the original BBOX and it thinks nothing changed...<br>
<br>
Thanks,<br>
Adrian<br>
<br>
Andreas Hocevar wrote:
<blockquote
cite="mid:5b021dd0906290256p6aeb4ab7ye016e6c237e1a36b@mail.gmail.com"
type="cite">
<pre wrap="">Hi,
this answer Eric gave to a similar thread in January should get you there:
<a class="moz-txt-link-freetext" href="http://openlayers.org/pipermail/users/2009-January/009709.html">http://openlayers.org/pipermail/users/2009-January/009709.html</a>
Regards,
Andreas.
On Mon, Jun 29, 2009 at 8:42 AM, Alexandru
IOVANOVICI<a class="moz-txt-link-rfc2396E" href="mailto:iovanalex@gmail.com"><iovanalex@gmail.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hello,
I'm working on a application in wich i have some vector data (a kml file
with paths) wich i have to display over a map. I have the data in a database
and i can create the kml on-the-fly with a php script, based on some url GET
params. I want the create a kml file wich contains only the lines wich are
in the current viewport and at a level of detail depending on the zoom
level. So, when the user pans the map i shoud update the kml file and
display the new data. Same thing when the user zooms the map. My PHP script
and kml file are tested and working ok.
The problem is how do i code the javascript for this layer. For a similar
POI layer i used the instructions from here
<a class="moz-txt-link-freetext" href="http://wiki.openstreetmap.org/wiki/OpenLayers_Dynamic_POI">http://wiki.openstreetmap.org/wiki/OpenLayers_Dynamic_POI</a> and it is ok. But
in this case i have no getUrl arg to the constructor.
How can be done this ... because i'm sure there is a solution ...
Thank you,
Alexandru IOVANOVICI
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</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
</blockquote>
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