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Google Maps with "Earth" type, projection performance ?
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Alexandre Dube  
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 More options Nov 3, 6:47 am
From: Alexandre Dube <ad...@mapgears.com>
Date: Mon, 2 Nov 2009 11:47:28 -0800 (PST)
Local: Tues, Nov 3 2009 6:47 am
Subject: Google Maps with "Earth" type, projection performance ?
Hi,

  I' wondering if there's any gain of performance in having a specific
projection different than LatLng when switching to "Earth" type.  As I
pan my map, I request new features to be added to the map via a script
and it appears to be much slower while in "Earth" type.

  Currently, I use LatLng coordinates to add my features.  Would it be
faster if I used a specific projection ?  All my data is concentrated
in Quebec, Canada btw.

  I read the following article [1] about projections.  It says that
"Earth" supports meter projections, but is it faster than LatLng ?
Are the coordinates reprojected on the fly when they are originally in
LatLng (making them slower to render) ?

  Many thanks,

Alexandre

[1] http://earth.google.com/userguide/v4/ug_importdata.html#note


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Alexandre Dube  
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 More options Nov 4, 2:25 am
From: Alexandre Dube <ad...@mapgears.com>
Date: Tue, 03 Nov 2009 10:25:47 -0500
Local: Wed, Nov 4 2009 2:25 am
Subject: Re: Google Maps with "Earth" type, projection performance ?
Hi,

  I'm wondering : am I asking the wrong group ?  If so, please tell me.

Many thanks,

Alexandre

--
Alexandre Dub
Mapgears
www.mapgears.com

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