A cesium-based network three-dimensional electronic map construction method

An electronic map and construction method technology, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as poor fluency and rough model, and achieve the effect of improving intuitive feeling, maintaining consistency, and improving user experience
CN109801371BInactive Publication Date: 2021-04-20NANJING UNIV OF TECH +1
10 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF TECH
Publication Date
2021-04-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The present invention provides a Cesium-based network three-dimensional electronic map construction method, comprising the following steps: collecting and obtaining modeling basic data; Correct the image; build a 3D map model; collect the coordinates of the feature points of the modeling object; publish a 3D electronic map. The network three-dimensional electronic map constructed based on Cesium in the present invention can overcome the limitation that WebGIS is limited to two-dimensional feature display, and can express layered features such as elevated roads; further, Cesium performs hardware acceleration through WebGL, and its hardware requirements are low. And because Cesium open source and custom-made browsing special effects can guarantee the fluency in the browsing process, improve user experience; Furthermore, the three-dimensional map model in the present invention is based on the construction drawing of the modeling object, the appearance image of the modeling object and the topography of the modeling area The actual data of the map is constructed, so the complete solid model of the 3D map formed is more accurate.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of three-dimensional map construction, in particular to a Cesium-based network three-dimensional electronic map construction method. Background technique

[0002] With the improvement of living standards, location-based services have become an indispensable part of people's daily life. As the cornerstone of location-based services, electronic maps provide intuitive location information for the public. With the development of GIS, the expansion of GIS through the Internet, that is, WebGIS (Web Geographic Information System), has become a convenient tool for the public to obtain location services. There are many limitations in the existing WebGIS. Most WebGIS mainly deal with two-dimensional data models, which are difficult to meet people's needs for comprehensive cognition of ground objects and grasping spatial positions. However, there are models in the use of traditional network three-dimensional electronic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More