mapping in 4 directions
is it possible to do 4 grids for a 3d mapping...i know it can do a double grid but i was wondering it can do continiously in the 4 direction to get as much as possible data
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Comments
23 comments
Why not create one grid, copy it and make any adjustments you need? It will all be in one plan, just not one component
for me it nost clear the way of te path
I See no reason to go through all that. One grid Map if set up properly will have more then needed for 2D or 3D imagery. Just a waste of time and depending on the size and length of the Map you may run into issues if too large. Some thoughts to consider.
ok the way i learned it is 4 ways obliqeu 1 nadir, lets say i want to do it like that ....you can create a double grid...but if i turn the grid by using center circle...the drone will fly the exact same path?? otherwise i would copy the double grid and create again the same but again in 2 diffrend directions so in the end i have photos of 4 direction.
also by using the preview i see it flies the first grid correctly but if he starts on the second one it goes at the edge a few laps then it fly to the center do a few there then again on another line...real bizar.
so is there really not a easier way to just fly 4 grids in opposit direction... lets take dji pilot there you have std 3d 4grids and 1 nadir...saddly enough they wont comunicate anymore with the pahtom 4 pro v2 only enterprice and the phantom 4 rtk
georges, can you share a mission that this is happening on
i logged off and get my old ipad mini from under the dust to see if dji gspr (ground station) still work ...because i want to fly tommorow, if i check now dronelinkafter login it flies the 2 grids normal?, i still really want to know how i can fly 4 grids in opposit way by using 2 times the double grid and i have no idea how to upload my plan
https://app.dronelink.com/georges-de-laet/my-first-project/plan/9Wp1LDxd0x60oaNUVDnW/dsO35Cm5O572FDXEqN0F
You can look at this and see if it is what you wanted.
https://app.dronelink.com/george-kasdorf/public-repo/plan/3XfNuK7TyX5f8RLrNo7z/HYKpx3vr9HOQ29l3flSt
I just duplicated the original map using the button.
Rotated it 180° from first.
Moved the start point for the second map to the end of the first map. I believe this causes it to retrace the path backwards. If you don't move it, it may just fly the same path again since they start at the same place each time. Which may be what you were seeing. There is an offset on the long legs, thought I'd leave it so you get even a little more offset on your photos, but you can slide it over to align with the other map if you want to.
You can use the "hide" button to make thing more clear between the maps also.
I do think they often advise flying at an "oblique" angle to the original path, not a full 180° degrees, more like 30 or 40. This would look like diamonds instead of squares in the flight path when you look at it. Which you could rotate the second map to do if you wish.
Good luck.
Ok I had another look at this, and realised was over complicating things, all you need to do on the duplicate layer is turn the flight direction setting to what ever you want it to be.
As typical I may be a little confused. It sounded like he wanted to fly the exact same path but in reverse. I agree with Martin though, the oblique path as he shows is what I would use. Actually now that I think about it, I probably did not need to even rotate the second map... just duplicate the map and move the start point to the first map finish point. DOH!
OR use Martins Flight Direction method, but would that make it fly "in reverse"? (Which again, I do not think is needed.)
George K, I assumed that by talking about flying in 4 directions, that georges, wanted to fly a rotated double grid, if this is the case then the best way to do it (in my opinion) would be to have one layer fly at 0 deg, and the other flown at -45 deg so as to get a 45 deg rotation between the 2 grids, and yes move the start of the second grid as close as possible to the end of the first grid, this would give this type of pattern
thats it thank you guys for all the help...and i am sorry that my question wasnt that clear..i did indeed mean the same,pad but opposit direction
thank you all for helping
georges, no problem, questions like this are always good as the conversation they start brings up all different possibilities of ways of doing things
update: i did the steps you guys told me to do an it worked...thx for that!
yesterday i tried to do the mapping, first start the drone lift of to about 2 meters and stayed there for a while ...once i wanted to land the drone he did the opposit and went really fast up...he slowed down and whend to the start point.
once there i noticed that the camera went to -60° vertical but also went a few degrees to the left (horizontal) that was really strange once he started the grid i noticed also the gimbal was like wobbling in the horizontal way we landed him after his grids and i did a gimbal calibration
also the drone flies to fast and at every capturepoint he needed to correct himself by coming back a bit (i put max speed at 12 km/h) he flew much faster., luckely the drone has a mechanical shutter and had my shutterspeed was set at 1/160-1/200
once i wanted to do the last grid in nadir -90° i noticed the camera wasnt completly down automaticly luckely it was possible to do it manualy in flight
I know some things i mentioned will be possible to correct in the settings but for me that isnt so clear yet how to do it on the other hand the speed problem was for me really nervous.
lets end with a positive note, the possibilty to adjust camera settings during flight that works verry good and also my laptop in combination with the smartcontroller in the field is really nice ...correct it on pc and the smartcontroller has directly the update.
i know there is a lot of information to find here but there is so much that you can get lost into i.
i am gladly to pay for a written document speciffic about the settings for mapping also the facade part and this for the elite...it is still just a hobby and i dont do it pro
happy (late) easter
georges
If you have a large plan (say large maps) there is often a long delay after it says "starting mission" and before it actually sets off. The bigger the plan, the longer the delay. This was why I mentioned in another thread that there is a practical limit to having too much in a single plan. Even if you have completed most of the plan, the delay is still the same.
For all the other things - it would help if we had a link to the plan so that we could take a look at it and maybe point out where you are going wrong.
Good evening Barry,
Thank you for offering me to help.
At this moment I am in France for work until Friday. Once I return to Belgium I will send it to you. I tried it on my phone but even if I can open that project I can't send it .
Georges
Hi Barry is this enough for you?
https://app.dronelink.com/georges-de-laet/first-mapping/plan/f3M8aF8VPj5rlYh4sw7i/C5lXNd69JK1cEE8930bo
Hi,
I don't see any issues with the map. And the speed should not go higher than the planned speed. But...there could be a clue in there and that ties in with the comment you made about the gimbal having problems.
The P4P V2 is a great machine, but it does have an issue in high winds You have to compare the flight speed plus the wind speed. I have found if there is a strong wind and a fast flight speed the gimbal gets knocked sideways. The only way I have found to avoid this is to either fly in less wind (e.g. another day) or fly slower.
The fact that you said it was flying faster than the mission speed AND having problems with the gimbal would indicate to me that you were flying on a very windy day. Remember that wind speed at altitude is often much higher than at ground level.
If you use Airdata you can check the log for the flight you had problems with and there is a weather tab - that will tell you the in flight wind speeds encountered.
I don't use airdata and to be honest there was just a bit of wind and no wind gusts.
What I find strange was that he loaded the map I pressed start he lift of to about 2 meters and he stayed there hovering...then we noticed that the camera was already went offset (horizontal left for a few degrees) I used the sticks to put him down but he did the opposite and went up verry fast and flew to startpoint he dropped the camera and we noticed the camera was wobbly during flight anyway thank you already for looking at my settings but like said I think a written document about this would be welcome ..the facade is also verry hard to get done ...for me
Facade is on my list of 5MF videos to do - it's just a question of finding time. I'm back to back until the end of the month so there will be nothing until then at least.
Only thing I can suggest is to try a different drone if you have one. Or try again on a different day. You might also consider doing a full IMU/Gimbal/Compass calibration before going out again.
Will do I still have a air 2 and a mavic 3 ...but that last one still doesn't have his sdk released
georges. Just some information regarding the missions. The drone will always ascend up to about 3’ first and hover then take a short time to execute the mission and start. When using DL the sticks are not usable so the pilot can’t accidentally bump them which would cause the mission to fail. If the drone rotated then that’s possibly the way you had the plan set up. It will rotate the drone to the heading of the approach. So what you can do is place the drone on the ground to which way the approach is going. Then there will be no rotation or very little. This is the way I set up all my plans due to me running video the majority of the time. Mine starts video recording and it won’t need to rotate the drone and looks better since it’s pointing straight on the approach.
If you want to take control then you can push the pause button on the controller or app or switch the speed mode out of Normal. Once you do this you will have full Manual control of the drone. The camera issues are a separate issue but at least you know how the mission should work at start up and how to take control. Hope that helps.
https://support.dronelink.com/hc/en-us/articles/360036830214-How-do-I-take-over-control-during-a-mission-
Ok, thx for all you're help /advice
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