[Geomoose-users] Refresh Layers Automatically SOLVED

Mon Nov 17 14:19:17 EST 2008

Some small changes you may want to make for cleanliness.  "0" could technically be an interval ID, and if you try to "stop" the interval of 0 when it does not exist, you'll get a javascript error.

var varTest = -1;

function clearIntervalNow()
{    if(varText >= 0) {

        clearInterval(varTest);
    }

}

________________________________
From: Jay Kapalczynski <jkapalczynski at ci.maple-grove.mn.us>
To: Dan Little <danlittle at yahoo.com>; "geomoose-developers at lists.sourceforge.net" <geomoose-developers at lists.sourceforge.net>; "geomoose-users at lists.sourceforge.net" <geomoose-users at lists.sourceforge.net>
Sent: Monday, November 17, 2008 12:34:38 PM
Subject: RE: [Geomoose-users] Refresh Layers Automatically SOLVED

Thanks Duck once again for your
patience….steered me in the right direction

The below is refreshing a specific
layer every 5 seconds…the reason for this is that the layer is being created
from a MySQL server table that is being updated through an Access Front end…as
the server table gets updated (accidents) the refresh on the layer creates a
new one thus showing the dots appear and disappear…
This could be used for tracking
vehicles as well….

Demo.xml:

<service
name="refreshLayers3" title="Refresh Layer every 2 Seconds"
type="internal" default="true" locked="true"
command="setIntervalNow()"
icon="shared/images/toolbar/MapleGrove_Buttons/Reload.jpg"
highlight="shared/images/toolbar/MapleGrove_Buttons/Pictometry.jpg"/>

<service
name="refreshLayers4" title="Stop the refreshing"
type="internal" default="true" locked="true"
command="clearIntervalNow()"
icon="shared/images/toolbar/MapleGrove_Buttons/Reload.jpg"
highlight="shared/images/toolbar/MapleGrove_Buttons/Pictometry.jpg"/>

=====================================================================================
Demo.html
page: between the <head> ... </head>

<script
type="text/javascript"
src="lib/Start_Listening.js"></script>

=====================================================================================

Start_Listening.js
page:

varTest = 0;

function setIntervalNow()
{
varTest =
setInterval("setIntervalNow2()", 5000);
}

function setIntervalNow2() 
{
Events.triggerEvent('refreshlayer',
'Database');
}

function clearIntervalNow()
{
clearInterval(varTest);
}

From:Dan Little
[mailto:danlittle at yahoo.com] 
Sent: Monday, November 17, 2008 10:23 AM
To: Jay Kapalczynski; geomoose-developers at lists.sourceforge.net;
geomoose-users at lists.sourceforge.net
Subject: Re: [Geomoose-users] Refresh Layers Automatically

Jay, 

I can solidly say that you're off by a  bit.

What you need to do in the command attribute is set it to call the function in
StartListening.js, StartListening.js also needs to be included in your <head>
... </head> in the html page.

So, say you had a function called "foobar()" in Starting
Listening.js, then the command attribute would be...

command="foobar()"

________________________________

From:Jay Kapalczynski
<jkapalczynski at ci.maple-grove.mn.us>
To: "geomoose-developers at lists.sourceforge.net"
<geomoose-developers at lists.sourceforge.net>;
"geomoose-users at lists.sourceforge.net"
<geomoose-users at lists.sourceforge.net>
Sent: Monday, November 17, 2008 10:07:11 AM
Subject: Re: [Geomoose-users] Refresh Layers Automatically
Anyone with any thoughts on why
I cant even get to the StartListening Function in the StartListening.js page
from this call?

<service
name="refreshLayers2" title="Refresh Layer every 5 Seconds"
type="internal" default="true" locked="true"
command="Events.triggerEvent(‘StartListening’,'DO I
NEED SOMETHING HERE')" icon="shared/images/toolbar/MapleGrove_Buttons/Reload.jpg"
highlight="shared/images/toolbar/MapleGrove_Buttons/Pictometry.jpg"/>

Thanks….

From:Jay Kapalczynski 
Sent: Wednesday, November 12, 2008 11:09 AM
To: geomoose-developers at lists.sourceforge.net;
geomoose-users at lists.sourceforge.net
Subject: RE: [Geomoose-users] Refresh Layers Automatically

Have been talking with Duck and
this is where I am right now….thought maybe someone else out there might have a
few thoughts….

I created two buttons….one that
will start refreshing a layer every couple seconds, one that will stop the
refreshing.
I created two js pages that will
handle the code

Am I on the right path
here?  Right now I cant even get to the Start_Listening.js page, so I know
I am not doing something correct.

Demo.xml makes the calls to the
js pages.  
Js pages do the work….just not
sure how to call the refreshlayer from js page

This works currently but I need
it to repeat and refresh every few seconds

<service
name="refreshLayers2" title="Refresh Layer"
type="internal" default="true" locked="true"
command="Events.triggerEvent('refreshlayer', 'Database')"
icon="shared/images/toolbar/MapleGrove_Buttons/Reload.jpg"
highlight="shared/images/toolbar/MapleGrove_Buttons/Pictometry.jpg"/>

THanks

3 FILES:

MapleGrove.demo.xml

<service
name="refreshLayers2" title="Refresh Layer every 5 Seconds"
type="internal" default="true" locked="true"
command="Events.triggerEvent(‘StartListening’,'DO I
NEED SOMETHING HERE')" icon="shared/images/toolbar/MapleGrove_Buttons/Reload.jpg"
highlight="shared/images/toolbar/MapleGrove_Buttons/Pictometry.jpg"/>

<service
name="refreshLayers3" title="Stop the refreshing"
type="internal" default="true" locked="true"
command="Events.triggerEvent('StopListening', 'DO I NEED SOMETHING HERE')" icon="shared/images/toolbar/MapleGrove_Buttons/Reload.jpg"
highlight="shared/images/toolbar/MapleGrove_Buttons/Pictometry.jpg"/>

StartListening.js

StartListening();
setInterval("setIntervalNow()",
5000);
function setIntervalNow()
{
// Call the  Events.triggerEvent('refreshlayer',
'Parcels');

alert('Hello');
}

Stop Listening.js

StopListening();
clearInterval("clearIntervalNow
()", 5000);
function clearIntervalNow ()
{
// clearInterval 

alert('Hello');
}

From:Dan Little
[mailto:danlittle at yahoo.com] 
Sent: Tuesday, November 11, 2008 9:25 AM
To: Jay Kapalczynski
Subject: Re: [Geomoose-users] Refresh Layers

Do
a google search on setTimeout and setInterval, they aren't built-in to
GeoMOOSE, they're native JS functions.

________________________________

From:Jay Kapalczynski
<jkapalczynski at ci.maple-grove.mn.us>
To: Dan Little <danlittle at yahoo.com>
Sent: Monday, November 10, 2008 3:02:38 PM
Subject: RE: [Geomoose-users] Refresh Layers
I did a search in all the .js
files, the main config, demos, and menu files and cant find a …  function setTimeout ()

Any thoughts as to where they
are?

I suppose then I can just call
the function and run the refresh code against the settimeout and set interval
code (somehow)

Will cross that bridge when I
get to it.  For now just cant seem to find the functions….

VERY APPRECITED duck….

From:Dan Little
[mailto:danlittle at yahoo.com] 
Sent: Monday, November 10, 2008 2:44 PM
To: Jay Kapalczynski; geomoose-developers at lists.sourceforge.net;
geomoose-users at lists.sourceforge.net
Subject: Re: [Geomoose-users] Refresh Layers

Jay, 

You'll need to look into setTimeout or setInterval Javascript functions. 
You'll then need to write a couple of wrapper functions and attach that to two
different buttons (easy to do with a service).

________________________________

From:Jay Kapalczynski
<jkapalczynski at ci.maple-grove.mn.us>
To: Dan Little <danlittle at yahoo.com>;
"geomoose-developers at lists.sourceforge.net"
<geomoose-developers at lists.sourceforge.net>;
"geomoose-users at lists.sourceforge.net"
<geomoose-users at lists.sourceforge.net>
Sent: Monday, November 10, 2008 2:28:16 PM
Subject: RE: [Geomoose-users] Refresh Layers
That works great….but I am
trying to do something else.  Hoping you can point me in the correct
direction.

Was trying to get my hands on the
code and modify it in another file.  I want to click a button in the tool
bar and it runs the refresh on a particular layer every 10 seconds (or some
other specified time value)

So I would need a loop to run
then stop when the another button was clicked.

Any thoughts?

From:Dan Little
[mailto:danlittle at yahoo.com] 
Sent: Monday, November 10, 2008 2:16 PM
To: Jay Kapalczynski; geomoose-developers at lists.sourceforge.net;
geomoose-users at lists.sourceforge.net
Subject: Re: [Geomoose-users] Refresh Layers

Example:
One Layer - Events.triggerEvent('refreshlayer', 'Parcels');
All Layers - Events.triggerEvent('refreshlayers', '');

________________________________

From:Jay Kapalczynski
<jkapalczynski at ci.maple-grove.mn.us>
To: "geomoose-developers at lists.sourceforge.net"
<geomoose-developers at lists.sourceforge.net>;
"geomoose-users at lists.sourceforge.net"
<geomoose-users at lists.sourceforge.net>
Sent: Monday, November 10, 2008 2:09:48 PM
Subject: [Geomoose-users] Refresh Layers
Where is the function that refreshes the layers?

Anyone out there know how I could configure the code the
refresh a specific layer?

Thanks

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