With the impetus of ICT, cartography faces the unprecedented challenges. The paper discusses the problems and changes of cartography facing the digital technology, analyzes the constraints of traditional cartography that are mainly delimited by 2D physical paper map. Diverseness of modern cartography shows various map products, and the paper illustrates the digital freedom in information space of modern cartography from eight aspects, including physical reality VS virtual reality, paper map VS digital map, superficial visualization VS inner visualization and so on. Modern cartography encounters the new development opportunities and fresh demands in digital era, and it's necessary to extend the framework of cartography and to assimilate newly sprouted things to promote the rejuvenation of cartography.
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