Re: [OSSIM] 3d models from kmz files

[David R. B. <dav...@sp...>]

Hmmm,

That's a question for Garrett how he interprets "relativeToGround".  There's height above ellipsiod which most models use in ossim and height above msl.  So if your elevation value is interpreted as height above ellipsoid and it's really height above msl, if you "geoid_offset + elevpost" is > 0 than a point at 0 will be underground.

Dave
   
________________________________________
From: Chuck Ketcham [chu...@ya...]
Sent: Wednesday, March 25, 2009 5:08 PM
To: oss...@li...; David R. Burken
Subject: RE: [OSSIM] 3d models from kmz files

The model I created uses an altitude mode of "relativeToGround" (in the doc.kml file), yet it disappears when elevation is enabled.  If I understand correctly, as long as altitude is set greater than than or equal to 0, the model should not be under the surface of the earth in this mode.

--- On Wed, 3/25/09, David R. Burken <dav...@sp...> wrote:

> From: David R. Burken <dav...@sp...>
> Subject: RE: [OSSIM] 3d models from kmz files
> To: "Chuck Ketcham" <chu...@ya...>, "oss...@li..." <oss...@li...>
> Date: Wednesday, March 25, 2009, 2:00 PM
> Chuck,
>
> I suspect with elevation turned on your models are under
> the surface of the earth.
>
> Dave
>
> ________________________________________
> From: Chuck Ketcham [chu...@ya...]
> Sent: Wednesday, March 25, 2009 4:52 PM
> To: oss...@li...
> Subject: [OSSIM] 3d models from kmz files
>
> I have noticed that several 3d models (from kmz files) tend
> to disappear when elevation is enabled.  This seems to
> be the case for many of the models I downloaded from
> Google's 3d warehouse.  It has also occurred with a
> model I created myself with Google Sketchup.
>
> The models all display just fine when elevation is
> disabled.
>
> What is going on?
>
> Thanks.
>
> Chuck
>
>
>
>
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