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Working in the App

Comparing flights and building a progress timeline

Put two flights side by side, or string many into a timeline to track a site over months.

Repeat flights of the same site turn into progress — if you can line them up. DroneFlow does that two ways.

A change-detection map over an orthomosaic showing an amber graded pad and amber road base along a curved street, cyan speckle over tree canopy, and a largely unchanged grey site interior
Fourteen days on one site: amber is material added, cyan removed, grey unchanged. 308 × 196 m at 0.25 m, ±0.15 m deadband, 68.6% of the tile did not move. Vegetation is not classified out — the cyan speckle on canopy is trees moving between flights, not earthwork.

Compare two flights

Select two projects of the same site and view them side by side, so you can see exactly what changed between dates — earthwork moved, structures added, material drawn down.

Build a timeline

Select several flights and DroneFlow assembles a timeline of the site, with a progress report that summarises change over the whole span — useful for owner updates and monthly draws.

Comparisons are only as sound as the alignment between flights. A large constant offset between two dates usually means a control or datum difference in one capture, not real movement — verify before you report it.

Related in Working in the App

Measuring distances, areas, and elevations

The core measurement tools, and how to read what they give you.

Volumes and cut/fill analysis

Measure material volume, and compare the ground against a design surface for earthwork.

Stockpile measurement and tracking over time

Measure a pile once, then watch its volume and tonnage change across flights.

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