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Method and system for three-dimensional solid modeling

A technology of three-dimensional entities and models, applied in 3D modeling, image data processing, instruments, etc., can solve the problems of long modeling time and high modeling difficulty, and achieve the effect of reducing difficulty, shortening time and high practicability

Inactive Publication Date: 2016-06-22
中国大唐集团科学技术研究总院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in this application is to provide a method and system for 3D solid modeling to solve the problems of high modeling difficulty and long modeling time in the prior art when performing 3D solid modeling

Method used

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  • Method and system for three-dimensional solid modeling
  • Method and system for three-dimensional solid modeling

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Experimental program
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Embodiment 1

[0034] Such as figure 1 As shown, it is a flow of a three-dimensional solid modeling method described in Embodiment 1 of the present application.

[0035] Step 101, separate views in various directions used to describe the model in the equipment engineering drawing.

[0036] The views in each direction include at least: a front view, a top view, and a side view. The side view at least includes: left / right view. In actual implementation, this step is completed by the storage controller, which reads the views of each direction stored in the hard disk into the memory and loads them. Of course, if the views in each direction are paper drawings, in actual implementation, this step is jointly completed by the image sensing device and the storage controller. The image sensing device scans the paper drawings into electronic format views of each direction, and the storage controls loaded directly into memory.

[0037] Step 102, determine the constraining plane and guiding plane of ...

Embodiment 2

[0056] Such as Figure 9 As shown, it is a three-dimensional solid modeling system described in Embodiment 2 of the present application, including: a sequentially connected reading recognition module 901, a drawing operation module 902, and a three-dimensional operation module 903; wherein,

[0057] The reading identification module 901 is used to separate the directional views used to describe the model in the equipment engineering drawing, and determine the constraining plane and guiding plane of the surface profile of the model according to the directional views; further used to obtain the The side view and front view in each direction view, and identify the view with the most inflection points and the largest extension length of the projected contour in the side view and front view as the constraint plane, and identify other views in the side view and front view It is the guide plane; it is also used to obtain the structural parameters of the reference position and the str...

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Abstract

The invention discloses a method and a system for modeling a three-dimensional entity. The method comprises the following steps of separating direction views in an equipment engineering graph, and determining a restraint plane and a guide plane according to the direction views; selecting at least two reference positions on the restraint plane according to appearance characteristic of a model, acquiring contour traces of the reference positions and respectively generating a restraint reference surface at each reference position in a direction perpendicular to the restraint plane according to the corresponding contour trace; selecting a reference position on the guide plane, acquiring a contour trace of the reference position and generating a guide reference surface at the reference position in a direction perpendicular to the guide plane according to the contour trace; and constructing a main body contour of the model according to the restraint reference surfaces and the guide reference surface, generating structural members on the main body contour and constructing the three-dimensional entity model. According to the method and the system, the problems of higher modeling difficulty and long modeling time during the three-dimensional entity modeling in the prior art are solved.

Description

technical field [0001] The present application relates to the field of digital image processing, in particular, to a method and system for three-dimensional solid modeling. Background technique [0002] Three-dimensional solid modeling technology is a high-tech emerging in recent years. Three-dimensional solid modeling is to use a computer to simulate a real model to generate a three-dimensional virtual model. [0003] In the past, for the fields of industry, aviation, aerospace, pharmaceuticals, etc., especially for some advanced large-scale equipment or high-tech equipment, the equipment structure was very complicated. At the beginning of the design, the design drawings with multi-faceted views were usually used to control the equipment. The overall and fine outline structures are described, but the design drawings are all plane views, which cannot fully and truly reflect the overall plan of the equipment design. Therefore, 3D solid modeling technology is widely used in ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00
Inventor 李少华车德勇孙佰仲王虎邓杰文高龙张贺贾嘉刘燕
Owner 中国大唐集团科学技术研究总院有限公司