Hooking method and apparatus for POIs in three-dimensional city model, and readable medium

Abstract

The invention provides a hooking method and apparatus for POIs in a three-dimensional city model, and a readable medium. The method comprises the steps of receiving a graph of a target building selected in the three-dimensional city model by a user; according to a POI list of the position of the target building in a two-dimensional map linked with the three-dimensional city model, obtaining target POI information bound with the target building; and hooking the target POI information to the graph of the target building in the three-dimensional city model. Compared with an existing manual hooking method for the POIs in the three-dimensional city model, the technical scheme has the advantages that the target POI information bound with the target building can be obtained automatically according to the POI list of the position of the target building in the two-dimensional map, and is hooked; and the hooking process not only saves time and labor but also can ensure the accuracy of the POIs hooked to each building in the three-dimensional city model, so that the efficiency of hooking the POIs in the three-dimensional city model can be greatly improved.

Description

【Technical field】 [0001] The invention relates to the technical field of computer applications, in particular to a POI mounting method, device and readable medium in a three-dimensional city model. 【Background technique】 [0002] 3D city model (3Dimensional City Model; 3D), also referred to as 3D model or 3D model for short, has been widely used in transportation, surveying, surveying and mapping, especially in urban planning and construction after years of research and application. had a certain effect. The 3D city model can show the buildings in the city from a three-dimensional perspective, and the form of expression is very intuitive and rich. [0003] Existing electronic maps usually use two-dimensional maps. Compared with three-dimensional, two-dimensional maps use a flat two-dimensional form to show buildings in the city. The buildings presented are not as intuitive and rich as three-dimensional city models. However, functions such as point of interest (Point of Int...

AI Technical Summary

Problems solved by technology

[0004] In order to be able to mount the POI at this location on each building of the 3D city model, it is impossible to mount the POI in the 2D map to the 3D city model in the prior art, so as to realize the function of displaying the POI in the 3D city model

However, it is only possible to manually mount each POI on the corresponding building according to the position of the actual POI mark in the 3D city model. The POI in the 2D map is inconsistent with the POI in the 2D map. Therefore, the existing POI in the 3D city model is less efficient

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