Guides and calculators.
How the measurements are made, what accuracy to expect, what the files are and what it all costs. Written for the person who has to defend the number, by the people who build Clarity. No sign-up, no gate.
Calculators
- Stockpile volume calculatorVolume and tonnes from base and height, for a cone or a windrow.Open the calculator
- Cut and fill calculatorCut, fill and net from the areas on your cross-sections, by average end area.Open the calculator
- GSD calculatorGround sample distance, footprint, spacing and photo count for a mapping flight.Open the calculator
Guides
How to measure stockpile volume with a drone
The flight, the surface, the base under the pile, and the one choice that changes the number most.
8 min read ·
Construction progress monitoring with drones: tracking and reporting
What a flight measures that a site walk cannot, how often to fly, and what goes in the monthly report.
9 min read ·
Construction punch lists and field quality observations
What each record needs, a workflow from raised to closed, when an observation becomes an NCR, and the numbers worth watching.
9 min read ·
Aerial photogrammetry: how drone photos become survey maps
From overlapping photos to a measured map, step by step, and when LiDAR is the better tool.
9 min read ·
Cut and fill calculation: grid, cross-section and surface-to-surface
Three methods, what each needs, and why a surface-to-surface comparison from a drone survey is the one that covers the whole site.
9 min read ·
Drone survey accuracy: what GCPs, RTK and PPK really give you
Expected accuracy in centimetres, with and without ground control, RTK or PPK, and how to prove it on your own site.
10 min read ·
DSM vs DTM vs orthomosaic: what each one is for
The three outputs of a survey, what each contains and which one to measure on.
6 min read ·
Drone surveying for construction: what you get and when to use it
What a drone survey delivers, where a rover still wins, and hiring it in against flying it yourself.
8 min read ·
What a drone survey costs: per acre, per flight and the processing
The flight, the ground control, the processing and the software, with real ranges.
7 min read ·
Comparing two drone surveys: progress, and why flights don't line up
Progress and volume between two flights, and the height offset that catches people out.
8 min read ·
How to fly a drone for photogrammetry: overlap, height and GSD
Overlap, height, ground sample distance and the mistakes that cost a reflight, with a calculator.
9 min read ·
Free drone mapping software: what you get without paying
What a free tier gives you, what processing costs and why, and how to get a lot done for nothing.
6 min read ·
Stockpile inventory for quarries and aggregates by drone
Month-end inventory by drone: the flight, the volumes, tonnage, and numbers an auditor can follow.
7 min read ·
How to choose drone survey software
Six questions to ask any platform before you pay for it.
5 min read ·
Try the measurements on a real site.
Explore is free: a surveyed quarry with every tool live on it, no card and no expiry.