Re: [Paparazzi-devel] Flight Plan - AGL vs alt="ground_alt+x"

[Gautier Hattenberger]

I added this attribute recently and you're right, it is not documented 
in the wiki (but it should !)

G.

Jeremy Reinertsen a écrit :
> Thanks Gautier,
>
> Just to close the loop (and now that I have the answer)  I can look at 
> the "flight_plan.dtd" file and see that waypoints are described as 
> follows:
>
> <!ATTLIST waypoint
> name CDATA #REQUIRED
> x CDATA #IMPLIED
> y CDATA #IMPLIED
> lat CDATA #IMPLIED
> lon CDATA #IMPLIED
> alt CDATA #IMPLIED
> height CDATA #IMPLIED>
>
> So there is a height attribute that can be assigned to a waypoint? 
> It's not explicitly described in the wiki but it is implied (so to 
> speak) in the .dtd file and if I had played around with the settings 
> then I would have eventually discovered it for myself. But I'm not 
> quite experienced enough to be able to derive these things by myself 
> as yet.
>
> I really do appreciate your help ;-)
>
> Cheers
>
> Jeremy
>
>
>
>
> ----- Original Message ----- From: "Gautier Hattenberger" 
> <address@hidden>
> To: <address@hidden>
> Sent: Thursday, April 01, 2010 9:27 PM
> Subject: Re: [Paparazzi-devel] Flight Plan - AGL vs alt="ground_alt+x"
>
>
> Hello,
>
> When you set a waypoint in the flight plan, you can use "height"
> attribute instead of "alt". It will set the altitude to
> ground_alt+height. You can also do the same in any block where "alt"
> attribute is available.
>
> Gautier
>
> Jeremy Reinertsen a écrit :
> > Hi Folks,
> >
> > I am familliar with assigning waypoint altitude via the format:
> > alt="ground_alt+100"
> >
> > Is it possible to assign waypoint altitude to actual AGL value when
> > using SRTM data? i.e. I want the UAV to circle at an attitude which
> > 100m AGL at the circle waypoint as opposed to 100m above the arbitary
> > ground alt value (presumably ground altitude at the Home waypoint).
> >
> > Cheers
> >
> > Jeremy
> > ------------------------------------------------------------------------
> >
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