![]() Today, this process is largely automated as tech giants such as Bing, Google and Apple, use algorithms that grab satellite data and ground measurements from a variety of datasets to keep maps updated - meaning that they can usurp state topographical organisations. Then, when flight became more common, topographical services began the practice of photogrammetry, where stereo images - image pairs that are slightly offset from each other - were compared using a stereoscope which then informed the creation of a topographic map. In a pre-digital era, map surveyors would have been out on foot taking measurements and recording where things were in particular locations, which were then relayed to a map draughtsperson - usually part of a state topographical service. If the plug-in doesn’t work correctly with Chrome, see the Chrome help center to learn how to update to the latest version. The Google Earth plug-in allows you to navigate and explore new travel destinations on a 3D globe. Create real-world, real-time experiences with the latest Maps, Routes, and Places features from Google Maps Platform. The first version of this websites used Google Earth plugin and Google Maps API. To begin to understand what prompts people to hide things on digital maps, it pays to take a step back to understand how cartography happens today. Build awesome apps with Google’s knowledge of the real world. ![]() Prior to GPS, illustration and aerial photography provided the bulk of cartographic information. ![]()
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