Three-dimensional static map production method

Abstract

The invention discloses a three-dimensional static map production method. The map generation method comprises the following steps of one, rendering structures in a map; two, processing ground images; three, generating map marks; four, rendering the map; and five, carrying out objectification of the structures and endowing a three-dimensional calculation and analysis capability. The step one comprises a framing step and a positioning rendering step. The framing step is to calculate an inclined projection polygonoun of a structure model, to select a structure inclined projection plane intersected with the structure model, and to obtain an involved three-dimensional model in a corresponding influence area. The positioning rendering step is to map the structure model on a plane in a parallel projection manner, to convert a to-be-rendered original mesh range into an actual rendering mesh range, and to load multiple framing rendering pictures. The three-dimensional static map production method is high in production efficiency and geographic accuracy, is not dependent on manual regulation, and has technical advantages of planar data expression and three-dimensional spatial analysis.

Description

technical field [0001] The invention relates to a map production method, in particular to a three-dimensional static map production method. Background technique [0002] Traditional 2.5-dimensional maps rely on manual editing and modification during the production or generation process, and a lot of manpower is required to update the data in the map. Traditional map production methods rely heavily on manual participation and adjustment in map rendering, objectification of buildings, and generation of map annotations. Therefore, human costs are too high and errors are prone to occur. In addition, the traditional 2.5-dimensional map will lose the coordinates of the three-dimensional space during the generation process, so it only has three-dimensional representation, but it does not have the ability to calculate and analyze three-dimensional space. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a three-dimensiona...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defect that the map production method in the prior art is too dependent on manual participation and adjustment, which results in high labor costs, and does not have the ability to calculate and analyze three-dimensional space, and to provide a three-dimensional static map production method. method

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