gex getObjectById getFeatureById problem

[Berwyn]

Roman

thanks for the utility libraries, they are going to be a big help,
especially the polygon and line drawing tools.

I'm loading multiple server side generated kml's into a ge plugin and
tried using the getFeatureById code in the google io presentation you
had to check if a kml being loaded already had an instance. and if so
I would remove the old and add the new.

I also tried gex.dom.getObjectId

both had a ploblem starting the walk, the first element was tripping
things up with getId() for the first step in the walk.

I altered getFeatureById to ignore the first step and things seam to
work

function getFeatureById(id) {
var foundFeature = null;
var i = false ;
gex.dom.walk(function() {
if (i) {
if (this.getId() == id) {
foundFeature = this;
return false; // end the walk
}
} else
i = true;

});
return foundFeature;
}


initialy I had for the
if statement if( this.getString() != '[xpconnect wrapped native
prototype]' )


worked with firebox but nor chrome or IE

berwyn

[Roman N]

Hi berwyn,

That's quite interesting... can you provide a sample KML file that was
showing the problem? The only way I can see that failing is if 'getId'
doesn't exist on the object, but fetchKml'd objects should always have
ID's. Can you try removing your 'if (i)' test and then changing

if (this.getId() == id) to if ('getId' in this && this.getId
() == id)

and seeing if that fixes it?

At any rate, I just pushed an update to the trunk of the SVN
repository that checks for existence of 'getId' before attempting to
call it. Hopefully that fixes it.

Thanks,
Roman

[Berwyn]

Roman

The changes work, thanks.

Do you still want a sample of the kml?

I'm searching the gex dom sometimes before any kml has been loaded,
sometimes after some documents have been removed. The reson for the
search being, kml documents with the same id are loaded twice.

The kml isn't anything special, the Document has a name, id (which is
the id I'm searching for so that the kml isn't loaded twice), followed
by a couple of Styles and then a number of placemarks with timestamps.

Berwyn

[Roman N]

Hi Berwyn,

Sure, if you can provide the KML file and exact code you're using to
traverse the DOM, that'd be really helpful. I'm unsure at what point
getId() would be failing (i.e. which API interface doesn't expose it).

No rush, though. Thanks for your help :)

Roman

[Berwyn]

Roman

Is there any way to send you a link in private to the page.

Berwyn

[Berwyn]

Roman

Are you the owner for the group: Google Earth API Notify

I can send the info that way.

Berwyn

[Roman N]

Hi Berwyn,

I'll send you a private email shortly. Thanks!

Roman