The theodolite inside a mobile phone. Surveying in the open using the App OnProtractor. ON PROTRACTOR turn your smart phone into a useful protractor set for quick angle and slope measurement. It helps you measure the angle of everything conveniently and accurately with your phone anywhere, anytime. It combines the four most important angle measuring modes in one app, which is Touch Measure On Screen, Touch Measure with Camera, Plumb Measure On Screen and Plumb Measure With Camera. Each measuring mode operates differently to cater for your needs in measures the angle of different types of object from small object to huge object and even objects far away such as buildings ...
References in zbMATH (referenced in 1 article )
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- Tönnies, Dirk: The theodolite inside a mobile phone. Surveying in the open using the App “OnProtractor” (2015) MathEduc