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Re: [Paparazzi-devel] Using GPS coordinates in GCS as the flight plan ed


From: Felix Ruess
Subject: Re: [Paparazzi-devel] Using GPS coordinates in GCS as the flight plan editor
Date: Sun, 31 Oct 2010 20:01:48 +0100

HI David,

it looks like you flightplan coordinate system origin (lat0 and lon0) is incorrect. So it is just a zoom issue, your waypoints are recorded correctly, just the ones with relative coordinates clustered around your flighplan origin and the other farther away. lon0 seems to be -116.193607 (in screenshot) which is a bit away from -116.971195 of your other waypoints).

Cheers,
Felix

On Sun, Oct 31, 2010 at 5:22 PM, David Conger <address@hidden> wrote:
Hello,
That is good to know. I thought I did that. Maybe it was the alt that caused issues? Here's what I tried:
  <waypoints>
    <waypoint alt="95.0" name="HOME" x="0.0" y="0.0"/>
    <waypoint name="STDBY" x="93.9" y="-120.2"/>
    <waypoint name="SURVEY1" x="-105.2" y="-150.1"/>
    <waypoint name="SURVEY2" x="166.1" y="-5.8"/>
    <waypoint alt="95.0" name="_BASELEG" x="201.0" y="-213.0"/>
    <waypoint alt="110.0" name="LAND" x="207.8" y="-168.9"/>
    <waypoint lat="32.976981" lon="-116.971195" alt="565.0" name="CLIMB" />
    <waypoint lat="32.978738" lon="-116.971513" alt="496.0" name="NEC"/>
    <waypoint lat="32.978315" lon="-116.972606" alt="490.0" name="NWC"/>
    <waypoint lat="32.976378" lon="-116.971124" alt="491.0" name="SEC"/>
    <waypoint lat="32.976424" lon="-116.972171" alt="489.0" name="SWC"/>
  </waypoints>

When opening in GCS as an editor WP were all on top of each other. Image attached. Screenshot2.png
David Conger




On Oct 31, 2010, at 09:12 AM, Gautier Hattenberger <address@hidden> wrote:

Hi,

It is possible to set a waypoint with global coordinates by using the pair of attributes (lat,lon) instead of (x,y).
The "height" attribute is not handle corectly by the flight plan editor. It is not handle at all actually... I will correct that. For now, this "height" attribute will not be changed unless you move the waypoint with the editor

Gautier

Le 31/10/2010 16:42, David Conger a écrit :
Hello,

I have a similar concern. In the past I thought it was possible to use direct GPS coordinates for waypoint locations. I walked my flying site the other day with a GPS and tried to create a flight plan with direct coordinates instead of x,y pairs and found it just didn't work. All WP were on top of each other.

Was it my syntax or is this not supported? I used syntax from older flight plans in SVN. I did this because I can know I want a waypoint at a specific location by walking there with a GPS but do not know the x,y coordinates for that same spot Apologies if I miss something obvious and x,y can accept GPS coordinates.
-David
  




On Oct 31, 2010, at 08:11 AM, Chris <address@hidden> wrote:

Hi.
Can something be done with the GCS flight plan editor in order to
eliminate the annoying habit it has deleting all height="100" statements
for example?
Here is an example:
In my flight plan i have among other those waypoints:

<waypoint height="100.0" name="HOME" x="12.5" y="6.6"/>
<waypoint alt="100" name="START" x="138.3" y="126.8"/>
<waypoint name="RELEASE" x="86.1" y="18.8"/>

After editing it with the GCS editor and subsequently saving it, i get:

<waypoint name="HOME" x="12.5" y="6.6"/>
<waypoint alt="100" name="START" x="138.3" y="126.8"/>
<waypoint name="RELEASE" x="86.1" y="18.8"/>

Notice that the alt="100" is still there only the height="100.0" is MIA
It is not that important but it can lead to serious problems if you edit
the flight plan in a hurry and forget to correct it afterwards.
Chris



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