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Workflows, Best Practice guidance, Tips and Tricks to extract the best from Hammer Missions

Why outline a building in 3D?

Defining a precise 3D boundary around a building gives you a reliable reference for inspection flights, automated mission planning and safe manual flying. Once the building polygon is created you can fly around it, plan or run automated flight missions, and use that shape as the baseline for mapping or inspection tasks.

Pre-flight checklist

• Power on the aircraft and flight controller and verify telemetry is healthy.
• Close unnecessary apps on your tablet or remote, including the DJI Fly app, to prevent conflicts.
• Open Hammer Missions on your tablet or remote control device and ensure GPS lock is obtained.

Start the 3D building outline function

In the top right corner of the app you will see a small vertical set of icons. The third icon down is a house with a plus symbol. Tap that icon to launch the 3D building outline tool. A white dialogue box will appear at the top of the screen; this active area is what you will tap to record each corner of the building.

Tip

If your remote control has a C2 button you can use that button to mark points instead of tapping the screen. This can be faster and leaves your hands free for precise control.

Marking the building corners

After conducting any appropriate pre-flight and site safety checks, Launch the aircraft, position the aircraft at a safe height above the building tilt the camera gimbal down to -90 degrees. Use the crosshairs in the camera feed, to line up with the exact corner point/building edge.

When the camera is tilted down and the crosshairs are over the corner, mark the point by either pressing the C2 button or tapping the white dialogue at the top of the screen. You will see a confirmation message when the point has been recorded.

Repeat this process for each corner. Move the aircraft to the next point, re-centre the crosshairs and record the point via C2 button or the white panel. Take your time to ensure accuracy.

Closing the polygon and generating the 3D outline

After recording the final point — usually returning close to your starting position — tap the green Done button at the bottom of the screen. Hammer Missions will generate the 3D building outline from the recorded points.

What you can do with the 3D building outline

• Manual flight reference — use the polygon as an on-screen guide when manually flying around the structure.
• Automated missions — create inspection or mapping missions that follow or reference the 3D polygon.

Best practices

1. Ensure safe operation of your aircraft at all times
2. Close extraneous apps and confirm RC inputs before starting the 3D outline routine
3. Record points at a safe altitude that still allows accurate camera alignment to corners.
4. Use the C2 button where available for faster, safer recording.
5. Check the generated polygon visually and adjust if any points need refinement.

Summary

Creating a 3D building outline in Hammer Missions is a straightforward process: prepare the aircraft, launch the building outline tool, use crosshairs to precisely mark corners, and finalise the polygon. The resulting 3D shape becomes a powerful foundation for repeatable, accurate flight missions and safer manual flying around structures.

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