Parameterized and structured modeling design method based on BIM (Building Information Model) and GIS (Geographic Information System)

Abstract

The invention provides a parameterization structured modeling design method based on a BIM (Building Information Model) and a GIS (Geographic Information System). Parameterization and structuration are used for constructing a three-dimensional scene, and the problems of update for models by design, position positioning and parameter change in a tiny scene and scene construction are solved. The method comprises the following steps that: constructing a three-dimensional model library based on parameters; selecting a corresponding model from the three-dimensional model library to be constructed;viewing a building shell as a frame object, viewing an object in the building as the sub-object of the frame object, describing the position information of the frame object through a geodetic coordinate system, and establishing the position space information of the sub-object through descriptive position information, a relationship of dependence, a relative position relationship and a topologicalrelationship; carrying out sub-object parameterization construction; utilizing the topological relationship to construct the object with topology association; utilizing a mutual function to transfer an association relationship between objects; utilizing the surface information of the frame object to construct the collision surface; and obtaining internal attributes and external attributes to realize parameterization query and operations.

Description

technical field [0001] The invention relates to a modeling technology of a three-dimensional solid scene, in particular to a parametric structured modeling design method based on BIM and GIS. Background technique [0002] In the traditional GIS (Geographic Information System) field, the concept of layers is usually used to manage spatial entities. Each layer manages the same type of objects, and there is a loosely coupled relationship between layers. Similarly, 3DGIS (three-dimensional spatial geographic information system) generally adopts this idea, and divides the three-dimensional solid scene into various layers such as terrain, image, vector, label, and model. The advantage of this method is that it is convenient for data collection, processing, and analysis of similar objects such as clustering, spatiotemporal association, and trend. But it becomes very unmanageable when dealing with highly structured or tiny (e.g. indoor, underground) scenes. [0003] In the field ...

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Problems solved by technology

[0005] The present invention provides a parametric structured modeling and design method based on BIM and GIS, using the two characteristics of parametric and structured to construct a three-dimensional scene combining BIM and GIS, and solves the problem of design and location in tiny scenes. Orientation, update of the model by parameter changes, and constructive issues of the scene

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