Network Link - refresh view/LookAt not working?

[Py]

I am successfully updating a placemark name, position and also it's
LookAt property periodically every second via Network Link.

The place mark moves and changes it's label just fine. But I can not
manage to get the"View" (LookAt) to be refreshed (it is updated), I
have to click on it to force the update to reflect on the screen. How
can I get the lookat also refreshing without user interaction? Also I
am not able to use any of the gx: tags, I do have the proper extension
configured in the header:

<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://
www.google.com/kml/ext/2.2">

I alway get error messages "not supported gx:...". Using latest 5.1
google earth on Linux.

Great documentation so far!

--------
I use python to compute new positions and heading, all works, only the
"LookAt" does not refresh with out clicking on the updated object
(Placemark moves OK):
...
kml = (
'<?xml version="1.0" encoding="UTF-8"?>\n'
'<kml ' + kml_extensions + '>\n'
'<NetworkLinkControl>\n'
' <Update>\n'
' <targetHref>%s</targetHref>\n'%update_target +
' <Change>\n'
' <Placemark targetId="pmr1">\n'
' <name>"Rider at %s"</name>\n'%name +
' <Point>\n'
' <coordinates>%f,%f</coordinates>\n' %(longitude,
latitude) +
' </Point>\n'
' <LookAt>\n'
' <longitude>%f</longitude>\n'
' <latitude>%f</latitude>\n'
' <altitude>%f</altitude>\n'
' <heading>%f</heading>\n'
' <tilt>75</tilt>\n'
' <range>200</range>\n'
' <altitudeMode>absolute</altitudeMode>\n'
' </LookAt>\n' %(longitude,latitude,altitude,heading) +
' </Placemark>\n'
' </Change>\n'
' </Update>\n'
'</NetworkLinkControl>\n'
'</kml>\n' )
return kml

----------------------------------

Thanks.
-Percy

[ManoM]

Hi Percy,

Don't know if you figured this out yet, but Update isn't designed to,
as you've discovered, change the view. The only way to automatically
change the view is to use flyToView:
http://code.google.com/apis/kml/documentation/kmlreference.html#flytoview

Mano

[Py]

Hi Mano,

To bad. Yes, I know, fly to works exactly once on load of the Network-
Link -- but not on automatic updates of it's data.
I figured I can automatic update and load new network link(s) in a
badly recursive way... not so great.

My dumb solution so far: hold down the Enter key (with some weight) on
the place to refresh the view of...............

Is there any alternative way to do this? I like to real time visualize
a route like flight following some path.

-Percy

On Jan 7, 9:01 pm, ManoM wrote:
> Hi Percy,
>
> Don't know if you figured this out yet, but Update isn't designed to,
> as you've discovered, change the view. The only way to automatically

> change the view is to use flyToView:http://code.google.com/apis/kml/documentation/kmlreference.html#flyto...

[ManoM]

How's this?

1) Have a NetworkLink with a flyToView of 1
2) Load in a NetworkLinkControl that either a) Updated/Changeda
LineString to change the coordinates or b) Update/Created a new
LineString (or Point or MultiGeometry)
3) Make sure your NLC has a LookAt or Camera on it

Mano

> > > -Percy- Hide quoted text -
>
> - Show quoted text -

[Py]

I tried the FlyTo in the NLC, this works only once -- it does not
reload the NLC (regardless what I do with the NLC after initial load)
on the timed automatic updates, only the NL object positions are
updated correctly (and a LookAt in there is ignored).

What "worked and updated the view" but causes obviously some memory
issue after some time is this:
if I actually update/load the same (modified) Networklink again via
this NLC itself (recursively) this then loads (in addition, not reload/
update) as fast as it processes the NLC and I get a deep tree of
NLCs.... growing and growing.

[ManoM]

Any chance you can let us look at what you produced?

Mano

> > > - Show quoted text -- Hide quoted text -