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Its not a hash, its a GUID.<br>
Instead of using the layer name, which may not be unique, all layers
are assigned a GUID when the runtime map is created.<br>
This GUID can only be read from a runtime map, and each layer gets
assigned a different GUID for each session.<br>
<br>
They differ, because another layer is (supposed to?) show.<br>
<pre class="moz-signature" cols="72">Regards, Kenneth Skovhede, GEOGRAF A/S
</pre>
<br>
<br>
Tómas Guðmundsson skrev:
<blockquote
cite="mid:FD1AEAFE8595974CADD8952EB37BF8843618D1@askja.snertill.local"
type="cite">
<pre wrap="">Mike,
I'm afraid that all I found was the 'showlayers' parameter. And it
was some kind of a hash,
clientagent Fusion Viewer
showLayers 0f682be6-0000-1000-8000-001b2418ab2d
operation GETMAPIMAGE
I don't quite know how to decrypt that but any help would be appreciated.
F.y.i. this is the kind of hash that would be correct with the layers
appropriately displayed.
clientagent Fusion Viewer
showLayers 0f65c98c-0000-1000-8000-001b2418ab2d
operation GETMAPIMAGE
The delta is only in the first part.
Regards,
Tómas.
-----Original Message-----
From: Mike Adair [<a class="moz-txt-link-freetext" href="mailto:madair@dmsolutions.ca">mailto:madair@dmsolutions.ca</a>]
Sent: 5. ágúst 2008 19:20
To: Tómas Guðmundsson
Cc: <a class="moz-txt-link-abbreviated" href="mailto:fusion-users@lists.osgeo.org">fusion-users@lists.osgeo.org</a>
Subject: Re: [fusion-users] Problem with layer hiding and showing.
Tomas,
You should check the value of the 'showlayers' and 'hidelayers'
parameters in the sequence of mapagent calls to GETMAPIMAGE. Those are
the parameters that turn layers on or off. If they are what you are
expecting, then it's possible that there is a problem with specifying
those params, e.g. they should be comma-separated and they are not, or
vice versa.
Mike
Tómas Guðmundsson wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Sorry about that. Everything about "If I do nothing else but reload
the map (i.e. pan the map, zoom or refresh it) the correct layers are
displayed on the map (all 3 or none at all).
So I figure this has something to do with timing or something like
that, of the fetching of the map itself?"
Is wrong. So ignore that.
Rgds.
Tómas
*From:* <a class="moz-txt-link-abbreviated" href="mailto:fusion-users-bounces@lists.osgeo.org">fusion-users-bounces@lists.osgeo.org</a>
[<a class="moz-txt-link-freetext" href="mailto:fusion-users-bounces@lists.osgeo.org">mailto:fusion-users-bounces@lists.osgeo.org</a>] *On Behalf Of *Tómas
Guðmundsson
*Sent:* 5. ágúst 2008 13:36
*To:* <a class="moz-txt-link-abbreviated" href="mailto:fusion-users@lists.osgeo.org">fusion-users@lists.osgeo.org</a>
*Subject:* [fusion-users] Problem with layer hiding and showing.
Hi all.
I currently have function that I am using that systematically goes
through an array it's passed and walks through the layer legend to see
if it finds a layer. So for every layername in a layerarray, I check
if that layer exists and then if the checkbox is checked I show it,
else I hide it. Now I've been debugging this and for an array of 3
layers (this also happens for layers more than 1), I get 3 times the
debug message "showing layer", when I check the checkbox again I get
the debug message "hiding layer" 3 times as well.
So I know this is working properly, however Mapguide Server does not
think so. Or at least the images I get back from the server are
missing one layer (the first one, every time). So according to the
legend all 3 layers are visible. However, the map shows everyone
except the first one. Now I figured this was weird, especially since
when I try to hide them, they all are hidden except the first one
which is now visible. And now for the final twist.
If I do nothing else but reload the map (i.e. pan the map, zoom or
refresh it) the correct layers are displayed on the map (all 3 or none
at all).
So I figure this has something to do with timing or something like
that, of the fetching of the map itself?
Please let me know if this is not clear to you and I'll try to explain
better, but I find it weird I can not hide more than 2 layers at a time.
Kind regards,
Tómas
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