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James Gillespie

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Review Open access Jul 2026

Capturing, processing and analysing 3D Data in a National Mapping Agency

Abstract. National Mapping Agencies (NMAs) have traditionally mapped their respective countries in two dimensions, taking inherently three-dimensional information and generalizing it into a flat projection plane. While some NMAs have moved completely to a three dimensional data model, many are still working in 2D, ofte...

David Holland, James Gillespie, Christopher B. Heap · 0 citations

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