Research on Measurement Methods of Digital Topographic Maps in High Mountain Areas of Dongguan City
This paper uses new technologies such as geographic information,remote sensing and aerial photography,combined with field correcting and supplementary survey work and based on the existing control points,aerial images and other basic data in Dong-guan city,to discuss the measurement technological methods of digital topographic maps in the high mountain areas of Dongguan city. The method is to provide technical support for improving the large-scale basic surveying and mapping data in Dongguan city and assis-ting the construction of "One Map" of natural resources.
topographic mapsaerial photographysurveying and mappinggeographic information