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<DIV dir=ltr align=left><SPAN class=593302316-11112012><FONT color=#0000ff
size=2 face=Arial>some suggestions</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=593302316-11112012><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=593302316-11112012><FONT color=#0000ff
size=2 face=Arial>you don't need to remove your kml_layer, you have only to
refresh the layer with the new url to the kmlfile.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=593302316-11112012><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=593302316-11112012><FONT face=Arial>you can
delete OpenLayers.Strategy.BBOX, because a kmlfile is always loaded in
whole.</FONT></SPAN></DIV><SPAN class=593302316-11112012>
<DIV dir=ltr align=left><BR><FONT face=Arial>example how to refresh your
layer</FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><A
href="http://gis.ibbeck.de/ginfo/apps/OLExamples/OL212/protocol_refresh/protocol_refresh.asp">http://gis.ibbeck.de/ginfo/apps/OLExamples/OL212/protocol_refresh/protocol_refresh.asp</A></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2
face=Arial></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2>R<SPAN
class=593302316-11112012>egards,</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=593302316-11112012>Arnd</SPAN></FONT></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=593302316-11112012><A
href="http://gis.ibbeck.de">http://gis.ibbeck.de</A></SPAN></FONT></FONT></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=593302316-11112012><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=593302316-11112012><FONT face=Arial><FONT
color=#0000ff size=2></FONT> </DIV></FONT></SPAN>
<DIV dir=ltr align=left>
<HR tabIndex=-1>
</DIV>
<DIV dir=ltr align=left><FONT size=2 face=Tahoma><B>Von:</B>
openlayers-users-bounces@lists.osgeo.org
[mailto:openlayers-users-bounces@lists.osgeo.org] <B>Im Auftrag von
</B>robertico<BR><B>Gesendet:</B> Samstag, 10. November 2012 06:52<BR><B>An:</B>
openlayers-users@lists.osgeo.org<BR><B>Betreff:</B> Re: [OpenLayers-Users]
Problem dynamic loading a KML file (refresh)<BR></FONT><BR></DIV>
<DIV></DIV>After a night slogging, i found my solution;<BR>I'd like to share my
solution and any suggetion is appreciated.<BR>I've created a function to add the
(KML) vector layer;<BR><PRE> function AddLayer()
{
// If layer (kml_layer) already exists, remove it before adding the new one
if (kml_layer)
{
map.removeLayer(kml_layer);
//kml_layer.destroyFeatures(); // not sure if this is necessary. Works well without it.
}
// Get file name (.kml file)
filename = document.getElementById('theFile').value;
kml_layer = new OpenLayers.Layer.Vector("KML", {
projection: map.displayProjection,
strategies: [new OpenLayers.Strategy.Fixed(),
new OpenLayers.Strategy.BBOX({resFactor: 1.1}),
//new OpenLayers.Strategy.Cluster()], // only usefull if you want to cluster your markers
protocol: new OpenLayers.Protocol.HTTP({
url: filename,
format: new OpenLayers.Format.KML({
extractStyles: true,
extractAttributes: true,
maxDepth: 10
})
})
});
map.addLayer(kml_layer);
}</PRE><BR>Also added the function to the 'onClick' event of the button;<BR><PRE><input type="button" value="Show Markers" onClick="AddLayer()"></PRE><BR>The
hardest part was to find the right way to remove an existing layer. Tried
several examples but this one works well.<BR><BR><BR>
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