Hyperlapse WayPoints based on Stick Movements or GPS
2347 8 2021-1-11
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JohnLietzke
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Flight distance : 3125968 ft
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I was wondering if anyone has used the WayPoints for Hyperlapse.  Are the WayPoints based on Stick Movements or GPS?  
The Maven app uses vitual stick movements to pilot the drone to the WayPoints GPS coordinate to begin the mission.

I am trying to fly several missions at different times of day but would like to know before trying to repeat the mission I programmed as I am unable to takeoff from the same spot.  I can get within about 500ft of the orginal location that I mapped using WayPoints for the second and third shots at different times of day tomorrow.

If the missions are based on Stick Movements the Mavic Air 2 will be in the wrong location in the air when it shoots the Hyperlapse.  But if WayPoints are based on GPS then the drone will fly to the first location and begin the shoot in the proper location.

Any information would be greatly appricated.




2021-1-11
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JohnLietzke
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*** Update ***

As I really wanted answers I went out to an open beach area in the dark and tried out the Hyperlapse Waypoints.  After setting up the shots I saved the mission.

Then went about 1000ft from where the mission began and turned on the down light.  I got in the air above the trees at about 75ft and then started the saved mission.  The Mavic Air 2 flew at about 24 mph to the location at the same height of 75ft.  Once it got to the location of the first point in the Hyperlapse it ascended to 113ft and began the mission.

Out of curiosity I drove about a half mile away and put the drone in the air.  I selected the saved mission and the Mavic flew right to it.  It was fairly easy at 75ft to keep track of it in the air while following it the car because of bottom light.  

Once a Hyperlapse Waypoint mission is initiated each location can be seen on the map with a green circle.  You can also see the drones progress to the point when it flying to the first location of the mission.


It is definitly GPS based to get to the first point in the mission.


2021-1-12
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DAFlys
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Im sure I saw a post from the Litchi guys who said it was virtual stick based.   First point being GPS makes perfect sense as you'd need a known good start location to make virtual sticks work.
2021-1-12
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JohnLietzke
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I saw a YoutTube comment from what appeared to be one of the developers last night that said that it did not use GPS for flying to the initial location but stick movements.  Maybe an incorrect comment but there were also references to needing to fly from the same spot.  Hopefully that has changed.
Maybe we will get lucky and DJI will include robust WayPoints for Photo & Video along with Photo Zoom in the next firmware update.  The base code is already there for HyperLapse WayPoints to expanding the functionality should not be a great undertaking.

I recieved this reply today:
JohnLietzke Posted at 1-11 21:52
Does anyone know if the Maven app uses GPS Coordinates for WayPoints or Stick Movement to run a process?  The reason why I ask is, if the mission were started from a different location on the island would it simply fly the same pattern or would it fly to the first points location then begin the mission?

The app use "virtual stick" to pilot the drone to Waypoints GPS Coordinate




2021-1-12
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Pappy3
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The Hyperlapse mission files have lat/lon coordinates for each waypoint. On Android each mission is stored in a folder similar to "HyperLapse_Path_1597154452438" with a path - "/device/DJI/dji.go.v5/hyperlapse/". Under the saved mission folder is a "json" file containing the lat/lon along with all of the other particulars for the mission  for each waypoint. There are also binary files for each waypoint. I suspect these binary files are uploaded to the aircraft and then fed into the flight computer when you start the hyperlapse mission.
2021-1-12
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JohnLietzke
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Pappy3 Posted at 1-12 19:33
The Hyperlapse mission files have lat/lon coordinates for each waypoint. On Android each mission is stored in a folder similar to "HyperLapse_Path_1597154452438" with a path - "/device/DJI/dji.go.v5/hyperlapse/". Under the saved mission folder is a "json" file containing the lat/lon along with all of the other particulars for the mission  for each waypoint. There are also binary files for each waypoint. I suspect these binary files are uploaded to the aircraft and then fed into the flight computer when you start the hyperlapse mission.

Thanks for the technical aspects of the file system.  I will certainly check those out.  Being able to alter the json file is nice but high risk of an error.  
2021-1-12
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Raf_IZ0QWM
Second Officer
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Pappy3 Posted at 1-12 19:33
The Hyperlapse mission files have lat/lon coordinates for each waypoint. On Android each mission is stored in a folder similar to "HyperLapse_Path_1597154452438" with a path - "/device/DJI/dji.go.v5/hyperlapse/". Under the saved mission folder is a "json" file containing the lat/lon along with all of the other particulars for the mission  for each waypoint. There are also binary files for each waypoint. I suspect these binary files are uploaded to the aircraft and then fed into the flight computer when you start the hyperlapse mission.

Please ca you post an example of this json?
Thank you
2021-1-12
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djiuser_rwamN4f2gfhu
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Raf_IZ0QWM Posted at 2021-1-12 21:14
Please ca you post an example of this json?
Thank you

{
"name":"2022-10-30 11:23:04",
"date":1667125387539,
"forward":true,
"interval":20,
"duration":20,
"list":[{
"index":1667125369733,
"px":-0.86360866,
"py":-1.2432717,
"pz":-157.90326,
"height":-18.0831,
"gimbal_pitch":-25.01759,
"gimbal_roll":4.0212745E-4,
"gimbal_yaw":-82.13223,
"longitude":0.03992693157632712,
"latitude":0.7275658704040507,
"altitude":-10000.0,
"traj_id":1667125380831},{
"index":1667125380829,
"px":-1.049235,
"py":0.21315256,
"pz":-159.5499,
"height":-16.436462,"gimbal_pitch":-25.017254,"gimbal_roll":-2.6466988E-4,"gimbal_yaw":-82.14047,
"longitude":0.03992718673474473,"latitude":0.7275658331202256,"altitude":-10000.0,
"traj_id":1667125380831}],"hash":"176DC741ED4CEE3994598D1974F1B38E"}

2022-10-30
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djiuser_rwamN4f2gfhu
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Raf_IZ0QWM Posted at 2021-1-12 21:14
Please ca you post an example of this json?
Thank you

I can't upload the file. this is a little content with 2 waypoints.

there are 2 binary files, one for each waypoint, are  a .png file thumbnails that's all

Pere
2022-10-30
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