I'm going to try to simulate a practical exercise. If you come up with ideas to improve it, they will be welcome
I have taken as an example a building of a city, trying to follow the example of
@ithacapool , but a little more complicated, with the space a little fair.
I used Google Earth to do the horizontal and vertical measurement and added a little margin. 70 meters wide and 65 meters high.
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We have the dimensions of the rectangle that will perimeter the mission. We create a polygon with these dimensions and obtain the references to create the polygon in DataPilotPlanner.
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We measure the distance to the facade, it will be necessary to determine the height of the mission and determine the rest of the parameters.
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We have all the necessary data, let's go to DataPilotPlanner. We create the survey area and determine the height at the distance to the façade.
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We already have all the data to create our vertical mission. We save the data from the Trigger Distance, every 4.43 meters horizontally the camera has to take a picture. We count the number of passes the drone has to make to cover the entire area. In this case 12. As we know that the highest point in this area is the building itself that we are going to scan, 65 meters high, we set the height of the RTL to 75m, which in case of problems does not crash into any building.
We proceed to create the definitive mission. Things to keep in mind and where work is boring. I have created 12 passes. I have set the Yaw to the left, in this case, in all Waypoints (that the camera points all the time to the facade). In the first Waypoint I set that I take distance-based photos, every 4.4 meters. It doesn't matter if the lines or past are crooked, we lack the last step.
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We're going to modify what we have and we're going to put all the Waypoints on one side above Waypoint 1 and all the ones on the other side in Waypoint 4. We have to modify the height of all the Waypoints again. How do we calculate the height? We know the height of the building 65 m, we know the number of passes that is 12, we divide and gives us a difference of height of 5.4 meters between passes. The first pass I have established at 3 meters high, I only have to add 5.4 m to the previous pass.
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More things to take into account, so that the points of the corners are exactly in the same horizontal position you can copy the coordinates, for one side copying the coordinates of the first Waypoint in the rest of Waypoints of that side, and with the other the same. With this all the points of one side would be exactly in the same horizontal position, only having to modify the height.
All we need to do is start the mission and see if it works
P.D.: I'm very tired and I've probably been confused about something or assumed something that is not or I don't know. Let's see if among all of us, we find problems with this method of doing vertical missions.
P.D.2: I'm so tired that I'm not even going to revise what the translator has translated for me, if you understand any nonsense, it could be that the translator has left me bad again, or as my wife says, you only say nonsenses