City noise 3D digital map manufacturing method
An urban noise and digital map technology, applied in the measurement of ultrasonic/sonic/infrasonic waves, measurement devices, instruments, etc., can solve the problems of less attention to the interaction relationship between urban acoustic environment and lack of urban noise 3D digital map production and display technology, etc. Achieve the effect of improving the quality of the urban environment, strong practical operability, and conducive to reduction
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[0033] Below in conjunction with embodiment the present invention will be further described.
[0034] A method for making a city noise 3D digital map, comprising the steps of:
[0035] (1) Record urban spatial form data through the urban spatial form module
[0036] (11) In this case, the spatial data of urban streets, blocks, and buildings in the Xinjiekou central area of Nanjing are mainly obtained through the electronic topographic files in dwg format produced by the surveying and mapping department and the manual vectorization of satellite remote sensing images. Data on the building and its surrounding environment, number of floors, and height of the building were supplemented and obtained through on-the-spot investigations, and a complete and accurate vector graphics of the current land use in the central area of Xinjiekou and related coordinate data were obtained.
[0037] (12) Use AUTOCAD software to save the vector data of Nanjing Xinjiekou central area in polylin...
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