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<P><FONT SIZE=2>i believe you need to add all your features at once,<BR>
so instead of looping the layer.addFeatures() call<BR>
you need to build all your features into an array and then call layer.addFeatures() once.<BR>
<BR>
<BR>
-----Original Message-----<BR>
From: users-bounces@openlayers.org on behalf of Shawn Oatley<BR>
Sent: Fri 8/28/2009 9:26 AM<BR>
To: x.zam@gmx.net; users@openlayers.org<BR>
Subject: Re: [OpenLayers-Users] Cluster strategy not working<BR>
<BR>
I don't have any input regarding the code, but I have worked with IE 8.<BR>
Not sure if that is an option, but if it is, they have a powerful script<BR>
debugger that allows you to step through the code also.<BR>
<BR>
Shawn<BR>
<BR>
>>> Max Stephan <x.zam@gmx.net> 08/28/09 8:24 AM >>><BR>
<BR>
Hi Jerome,<BR>
<BR>
I´d be very happy if I could use Firebug in this case (very nice tool<BR>
for<BR>
debugging and for tracking the DOM in my opinion) but as I mentioned<BR>
above:<BR>
I´m using an ActiveX-Control for reading out the Access-Database and for<BR>
sending further requests to it. And this method is only possible in<BR>
Internet<BR>
Explorer for which I haven´t found such a powerful debugging tool as<BR>
firebug<BR>
(firebug lite wasn´t useful).<BR>
<BR>
Ok, now here´s the loop, which is adding the vector-features to my<BR>
vector-layer:<BR>
for (var i=0; i<mestArray.length; i++){<BR>
addVector(vectorLayer, mestArray[i][1], mestArray[i][0]);<BR>
}<BR>
The first parameter is the target-layer, the second is a lonlat-object<BR>
and<BR>
the third is an attribute for the features.<BR>
<BR>
And here´s the addVector-function:<BR>
function addVector(layer, lonlat, mestId){<BR>
var geometryObjekt = new<BR>
OpenLayers.Geometry.Point(lonlat.lon,lonlat.lat);<BR>
var vectorObjekt = new OpenLayers.Feature.Vector(geometryObjekt);<BR>
vectorObjekt.attributes.mest = mestId;<BR>
layer.addFeatures([vectorObjekt]);<BR>
}<BR>
<BR>
And concerning your english: No need to be worried. I´m understanding<BR>
everything.<BR>
<BR>
Thx in advance<BR>
Max Stephan<BR>
<BR>
Jerome Freyre wrote:<BR>
><BR>
> Can you also show us your method that parse and add the feature to the<BR>
<BR>
> layer?<BR>
><BR>
> I think another good way to explore is to use firefox and firebug.<BR>
><BR>
> With firebug, you can add breakpoints and the go step-by-step...<BR>
><BR>
><BR>
> Whith that, you should put a breakpoint into your method that parse <BR>
> and add features to layer and another one into the cluster strategy <BR>
> (Think to not use the OpenLayers minimised but the complete source) to<BR>
<BR>
> see if software run into the class correctly...<BR>
><BR>
><BR>
> Hope my english is quite understandable.... :)<BR>
><BR>
><BR>
><BR>
> Jérome<BR>
><BR>
><BR>
><BR>
> Le 28 août 09 à 14:01, Max Stephan (via Nabble) a écrit :<BR>
><BR>
>> Hi Jerome,<BR>
>><BR>
>> thanks for your reply. I already tried that but it causes an error <BR>
>> ("this.layer.events" is null or no object) and the map content isnÂ<BR>
>> ´t shown.<BR>
>><BR>
>> Any other ideas?<BR>
>><BR>
>> Greets,<BR>
>> Max Stephan<BR>
>> Jerome Freyre wrote:<BR>
>> Hi Max,<BR>
>><BR>
>> Personnally, when I use Cluster Strategy, I create separatly the <BR>
>> strategy and the I activate it.<BR>
>><BR>
>> <BR>
>> var strat = new<BR>
OpenLayers.Strategy.Cluster({distance:20});<BR>
>> vectorLayer = new<BR>
OpenLayers.Layer.Vector("Vektorlayer",{<BR>
>> strategies: [<BR>
>> strategy<BR>
>> ],<BR>
>> styleMap: vectorStyle2, maxResolution: 19});<BR>
>> strat.activate();<BR>
>><BR>
>><BR>
>> Hope it will be usefull....<BR>
>><BR>
>> Sincerly,<BR>
>> Jérome<BR>
>><BR>
>> Max Stephan wrote:<BR>
>> Hi everybody,<BR>
>><BR>
>> I`m having problems getting the cluster strategy to work. It simply <BR>
>> makes no difference in terms of appearance if I add it to the <BR>
>> VectorLayer or not.<BR>
>><BR>
>> This is my code for the layer:<BR>
>> vectorLayer = new<BR>
OpenLayers.Layer.Vector("Vektorlayer",{<BR>
>> strategies: [<BR>
>> new<BR>
OpenLayers.Strategy.Cluster({distance:20})<BR>
>> ],<BR>
>> styleMap: vectorStyle2, maxResolution: 19});<BR>
>><BR>
>><BR>
>> The reason why I want to add it is that I have 480 Features <BR>
>> alltogether on my map and even when zooming into some areas there <BR>
>> are still around 150 features left in the bbox causing <BR>
>> InternetExplorer to slow down (don´t know if it´s the same case <BR>
>> with Firefox, but I gotta use IE to use ADODB-Connection to an <BR>
>> Access Database in the Intranet).<BR>
>><BR>
>> Those features are created and added step by step with an addVector-<BR>
>> method I have implemented that reads out the coordinates and <BR>
>> attributes of the database for a single feature and then jumps to <BR>
>> the next entry and repeats the procedure till all features have been<BR>
<BR>
>> added.<BR>
>><BR>
>> greets and thx in advance<BR>
>> Max Stephan<BR>
>><BR>
>><BR>
>> View message @<BR>
>><BR>
<A HREF="http://n2.nabble.com/Cluster-strategy-not-working-tp3533851p3534202.html">http://n2.nabble.com/Cluster-strategy-not-working-tp3533851p3534202.html</A><BR>
>> To unsubscribe from Re: Cluster strategy not working, click here.<BR>
>><BR>
><BR>
><BR>
><BR>
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