The camera angles mentioned in the article about the flight plan refer are measured from the vertical direction whereas in the app, the angles are measured from the horizon line. In other words, 30° actually means 70° in the app. This will be corrected in the future for consistency.
Curtis’ reply is correct, 5 different grids are needed, 1 being the nadir view ideally. Another alternative would be to fly 2 grids besides the nadir one, towards North-East to capture South and West facades, and towards South-West to capture North and East facades (change of 180° between the 2 grids). The overlap will be less good probably.
Note that on iOS, the new release will have a double grid mission that will automatically rotate the drone (currently just translating) and so camera to capture all facades in 2 grids only.
The app does not support Phantom 2 and it is not in our pipeline to integrate it.
We support Phantom 2 Vision and Phantom 2 Vision+ on Android and iOS though.
We are aware of some issues with the latest DJI firmware, including the following:
- The camera does not respond and the gimbal cannot be controlled.
- The remote controller does not respond and it is sometimes not possible to take back manual control.
- Each new mission, the height limitation is reset to 50 or 100 m meaning that if the altitude of the mission is higher, the drone will not start it. The user should then check that setting in the DJI GO app. There might be other issues that were not reported yet.
For the problem when the mission is not uploaded to the drone, please see my reply just above in 4.
With the new release of Android that supports SDK 3, we expect that most problems you described will be solved. In the current version, the synchronization might fail meaning that the images are not transferred from the drone to the phone and the .p4d file is not generated. However, it is still possible to successfully process the project on Pix4Dmapper: https://support.pix4d.com/hc/en-us/articles/204911905
In our Android app it is not possible to change the settings of the camera. The camera settings are set to automatic so that the images are optimally captured to ensure a good reconstruction with Pix4Dmapper. These settings are defined at the very beginning of the flight with the first images and remain the same until the end of the mission.
We would always recommend to check with the video feed (Camera view of the Grid or Free Flight Mission) in our app that the focus is correctly done before starting the mission.
Yes, when the connection is lost the drone continues to fly the mission. However the drone does not take picture anymore because the app has to send a message when to trigger the shutter. If the connection loss persists then it is better to abort the mission by switching the flying mode from F (autopilot) to P (manual).
This allows you to take back manual control with the RC and make the drone come back to the homepoint to restart a new mission. But if the connection is lost, the RC will probably not respond too. Usually, you can define settings in DJI GO to decide what the drone should do in this case or when the battery level is lower than a certain % for instance, and it should apply when flying with Pix4Dcapture.
If you do more testing, we will be happy to read your feedback and further help.