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Elevation Graph for more than 70KM

Posted by John on June 30, 2014 at 5:10am

HI,

We are doing a test flight for more than 30mi, (15mi both ways). But we wanted to check the Elevation graph in the mission planner but we were getting the message that the distance is too big or too low waypoints.

We have added multiple waypoints to eliminate this cause, but we are still getting the message. We tried few waypoints, but the message was the same.

We would like to know how can we fix it to get the elevation graph if more than 30mi ?

toomanfewWP.jpg

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Replies

Philip Giacalone July 2, 2014 at 12:00pm

Elie - What you are proposing is a dangerous (and likely illegal) flight. Do NOT do it.

Keep your aircraft within visual line of sight.
- John > Philip Giacalone July 2, 2014 at 12:20pm
  
  HI Philip,
  
  They will fly over unmanned area only, there are only pipelines there, but if there is leaking, they can see it using a Flir Camera. It will save time and money.
  - Philip Giacalone > John July 2, 2014 at 12:30pm
    
    Carefully check the flight regulations in your area. Likely your proposed flight is illegal. If so, do not do it. Follow the rules and regulations.
    
    Fly safely.
    - John > Philip Giacalone July 2, 2014 at 12:33pm
      
      HI Philip,
      
      Already there are flying their cessna and now they want to use the UAV. They have the area legalized for them.
      - Moderator
        
        Gary Mortimer > John July 2, 2014 at 12:41pm
        
        Ah Africa that's where I am just spoke to a chap using a push pull Cessna to survey with a Lidar and he is being paid $1 a hectare!!!
      - Philip Giacalone > John July 2, 2014 at 12:41pm
        
        Ok, good luck. Interested in hearing how it all works out.
Marek July 1, 2014 at 2:24am

You can use "srtm" module from MissionPlanner source-code and prepare elevation graphs as long and as dense - as you need.

(MissionPlanner/ExtLibs/Utilities/srtm.cs)
- John > Marek July 2, 2014 at 1:38am
  
  HI Marek,
  
  Can you please guide us how to do it or help us to do it, because we don't know how and it is very urgent for us.
  
  We need to keep using the Google Hybrid map or Bing Hybrid Map but we need to get the elevation graph from the srtm.
  - Marek > John July 2, 2014 at 2:15am
    
    Latest version of MissionPlanner have already elevation graph based on srtm module (in case when Google altitude is not available), but still 50 km limit is present.
    
    Only change you need is to replace "50000" in ElevationProfile.cs line 186 to value you need and compile MissionPlanner.
    - John > Marek July 2, 2014 at 2:39am
      
      HI Marek,
      
      I am not an expert in Visual Studio or compiling, can you help me to do it or do you know anyone who did it before or can help me also?