Constructing method for three-dimensional pipeline model connecting piece model

Abstract

The invention relates to the space information system technology field and discloses a constructing method for three-dimensional pipeline model connecting piece model. The method comprises the following steps: 1) constructing a connecting piece model in which a connecting ball model is created and a sleeve tube model is created; 2) controlling the position and the shape of the connecting piece model in which operations are made to the connecting ball model and the sleeve tube model; and 3) controlling the appearance attributes of the connecting piece model. The invention is used for smoothing process to package a pipeline mouth at the starting terminal or the ending terminal of the pipeline where a connecting ball or a sleeve tube are used. When two pipelines are aligned with an angle of 180 degrees at the aligning position, the sleeve tube can completely wrap the connecting ball and realize the smooth alignment of the two pipelines, making the pipelines connected with better looking. When the pipelines are aligned with an angle of other degrees, the connecting ball is apparently visible from the outer side of the bended point so that the two pipelines can transit naturally. When three or more pipelines are connected, the sleeve component of the invention can achieve a good connection effect.

Description

technical field [0001] The invention relates to the field of three-dimensional vectors of geographic information systems, in particular to a method for constructing a three-dimensional pipeline model connector model. Background technique [0002] As the country and the government pay more and more attention to the construction of underground pipelines and underground pipeline corridors, the planning and management of urban underground pipelines have become problems that have to be solved. There are various types of underground pipelines. The traditional two-dimensional pipeline management can no longer meet the actual needs. It is the current mainstream trend to model underground pipelines and present and manage them in a three-dimensional scene. [0003] There are two types of 3D pipeline modeling: manual modeling and automatic modeling. For manual modeling, the collected pipeline size, texture, attributes and other information are used for artificial modeling. This modeli...

AI Technical Summary

Problems solved by technology

However, in the process of actual operation, due to problems such as the accuracy of pipeline data collection, if the connection of adjacent pipelines is not processed, problems such as pipeline breakage and pipeline staggering will occur, resulting in poor display effects in the scene

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