Three-dimensional road generating system and method

Abstract

The invention provides a three-dimensional road generating system and method for the technical field of navigation. The system comprises a projection module, a data analysis module, a road modeling module and a three-dimensional road surface generating module, wherein the projection module is used for converting the obtained road longitude and latitude coordinate into a geodetic coordinate, the data analysis module is used for clipping attribute data of the road and the geodetic coordinate to form the linear data of the road, the road modeling module is used for analyzing the linear data and judging whether the dual-digitalized combination can be performed, if so, performing the dual-digitalized combination to form facet data; the three-dimensional road surface generating module is used for extracting the road axis according to the facet data to generate the three-dimensional rod surface. By analyzing the linear data of the road, the dual-digitalized combination is performed to form facet data, the data processing procedure of generating the three-dimensional surface is simplified, and the vivid three-dimensional urban road map is realized by using low cost and low workload.

Description

technical field [0001] The present invention relates to the technical field of navigation, in particular to a three-dimensional road generation system and method. Background technique [0002] With the advancement of science and technology, social development has entered an all-round information age marked by numbers and networks. At the same time, the concept of digital city came into being. The so-called digital city refers to the comprehensive use of computer digital means (GIS, remote sensing, telemetry, network, multimedia and virtual simulation and other technologies) to comprehensively digitally collect and process the city's infrastructure and functional mechanisms. It is a powerful function of digitization, networking, and optimized decision-making of complex systems such as ecological environment, population, economy, and society. In a digital city, roads in urban infrastructure are as important as a person's blood vessels, which maintain the vitality and safety ...

AI Technical Summary

Problems solved by technology

Among them, the processing of the analog data of the image and the construction of the map are very heavy, and the displayed 3D map is difficult to be clear enough and close to reality

[0004] There is also a three-dimensional map of Gaode, which provides users with a three-dimensional city map similar to three-dimensional, which has a high degree of fidelity, but the digital data that constitutes the map is planar data, that is, the data information of the road is the whole surface, such as the zebra crossing road Data, which only has the spatial data of the entire zebra crossing, needs to manually analyze and integrate the spatial data of various roads, and finally form the model data for generating three-dimensional roads, thus requiring a large amount of data processing, with high workload and cost

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