Processing method and device for boundary surface grid cell of three-dimensional model
A grid unit and 3D model technology, applied in the field of data processing, can solve problems such as time-consuming and low efficiency
Active Publication Date: 2015-04-29
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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[0007] The main purpose of the present invention is to provide a method and device for processing the mesh unit of the boundary surface of a three-dimensional model, so as to solve the problems of long time consumption and low efficiency of the method of obtaining high-quality mesh in the three-dimensional model
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[0034] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0035] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0036] It should be noted that the terms "fir...
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The invention discloses a processing method and device for a boundary surface grid cell of a three-dimensional model. The processing method comprises the following steps: searching dense edges in data of the boundary surface grid cell and determining a first dense surface based on the dense edges; performing dense edge processing on the grid data of the first dense surface to obtain a second dense surface; judging whether a first unit serving as an edge unit on the second dense surface is provided with a second unit serving as an edge unit or not, wherein the first unit is adjacent to the second unit; if the first unit serving as an edge unit on the second dense surface is not provided with the second unit serving as an edge unit, performing pose adjustment operation on the first unit according to the type of the first unit to obtain a third dense surface; if the first unit serving as an edge unit on the second dense surface is provided with the second unit serving as an edge unit, performing reconstitution operation on the areas of the first unit and the second unit to obtain the third dense surface. According to the invention, the problems in the prior art that longer time is consumed and the efficiency is low when a high-quality grid in a three-dimensional model is obtained are solved, and the effect of rapidly and efficiently adjusting the quality of the boundary surface grid cell is realized.
Description
technical field [0001] The present invention relates to the field of data processing, in particular to a processing method and device for boundary surface mesh units of a three-dimensional model. Background technique [0002] ACIS is a widely used geometry drive engine and graphics system development platform. Many existing large-scale commercial software, such as AutoCAD, Solidwork, Rhio, etc., have adopted ACIS as the core of graphics development. Due to the continuous development of CAD / CAE integration technology, geometric modeling and simulation analysis within the same platform has become the research direction of more and more people. ACIS itself has the function of three-dimensional grid unit division, which is suitable for data sources of analysis and calculation such as boundary element method and meshless method. However, for modules with complex shapes and many surface features, the division method of ACIS is prone to produce more sharp elements, dense edge dist...
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IPC IPC(8): G06T17/30
CPCG06T17/30
Inventor 魏一雄陈兴玉张祥祥田富君周红桥胡祥涛张红旗苏建军
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST