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Three-dimensional model optimization method for rapid local Delaunay

A technology of three-dimensional model and optimization method, which is applied in the field of industrial manufacturing to solve the uneven distribution of nodes, ensure calculation accuracy, and reduce calculation time.

Pending Publication Date: 2022-05-24
苏州数算软云科技有限公司
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Problems solved by technology

[0005] For this reason, an object of the present invention is to propose a kind of 3D model optimization method for fast local Delaunay, to solve the problems mentioned in the background technology, overcome the deficiencies in the prior art

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  • Three-dimensional model optimization method for rapid local Delaunay
  • Three-dimensional model optimization method for rapid local Delaunay
  • Three-dimensional model optimization method for rapid local Delaunay

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Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0039] The present invention proposes a three-dimensional model optimization method for rapid local Delaunayization. This method is different from other global optimization methods of three-dimensional models. The present invention adopts a local optimization strategy, and only optimizes the areas where the distribution of nodes is unreasonable, such as planes. area. The local optimization strategy can effectively reduce the number of target surfels that the algorithm needs to optimize, thereby ...

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Abstract

The invention provides a three-dimensional model optimization method for rapid local Delaunay, which comprises the following steps of: S1, importing a model file, and reconstructing an input data file based on a half triangular patch data structure; s2, extracting all plane areas in the model, and filtering out substandard plane areas as optimization alternatives; s3, performing three-dimensional rotation on the three-dimensional plane needing to be optimized so as to map the three-dimensional plane into a two-dimensional space; step S4, performing Delaunay algorithm optimization on the plane in the two-dimensional space; s5, reversely mapping the optimized two-dimensional plane into an original three-dimensional plane; s6, an original plane in the model is deleted, the optimized three-dimensional plane is inserted into the three-dimensional model, and topology closing of the whole three-dimensional model is guaranteed in the insertion process; and S7, outputting an optimized three-dimensional model result.

Description

technical field [0001] The invention relates to the technical field of industrial manufacturing, in particular to a three-dimensional model optimization method for rapid local Delaunayization. Background technique [0002] A 3D model is a 3D graphics display method that is widely used in industrial manufacturing, animation modeling, film and television special effects, etc. However, the existing 3D models still have some flaws in the display rendering process. In order to reduce the size of the 3D model as much as possible, the 3D modeling software will only distribute points at the positions where the dihedral angle changes drastically or at the specified edge position when dispersing points. The number of triangular surfels is used to describe the 3D graphics with the specified precision, but the distribution of nodes is extremely uneven. In the large plane area, since the dihedral angle does not change drastically here, the nodes arranged by the modeling software are ve...

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Application Information

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IPC IPC(8): G06T17/00G06T17/20G06T19/20
CPCG06T17/00G06T19/20G06T17/20Y02T10/40
Inventor 张子珂李忠林孟少星
Owner 苏州数算软云科技有限公司
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