A full-color layered slicing algorithm based on texture-mapped 3D model

Abstract

The invention relates to a full-color layered slicing algorithm based on a texture map three-dimensional model, including: analyzing the three-dimensional model file of the texture map, establishing the adjacent topological relationship of the triangular grid based on the color information, and realizing the adjacent information of the triangular grid of the color information Quick query; realize the fast intersection operation between the color information triangle mesh and the tangent plane, obtain the position coordinates and texture coordinates of all vertices in each layer, connect the vertices in sequence to form a full-color two-dimensional outline and fill it; generate a full-color bitmap According to the position of the "colorless" model on the printing platform, the position of the full-color outline in the bitmap is precisely positioned, and the thickness of the outline is appropriately increased to realize the function of "printing layer by layer, coloring layer by layer". The invention has the advantages of high slicing efficiency, realistic model surface color, high degree of restoration, saves the post-processing process of coloring the model, greatly reduces the requirement for operator proficiency, improves the molding quality of parts, and realizes the real meaning color 3D printing.

Description

technical field [0001] The invention relates to a slicing method of a three-dimensional model, in particular to a method based on texture stickers Figure three A full-color hierarchical slicing algorithm for dimensional models. Background technique [0002] With the rapid development of 3D printing technology in recent years, 3D printing no longer only exists in laboratories, but is more and more used in industries, medical care, education, design and other fields, just like other technologies, such as Movies, television, cameras, etc., have gradually developed from "colorless" to color. Color itself carries a lot of information that people can rely on to distinguish different components of things. In the field of design, the surface of the sample can be colored to enhance the performance; in the field of education, the surface of the model can also be colored to distinguish different components and enhance the teaching function. [0003] At present, in order to obtain co...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above technical defects: artificial coloring in the later stage is time-consuming and laborious, and the coloring effect is also heavily dependent on the proficiency of the operator; the current layered slice algorithm cannot handle the texture map of the 3D model, and cannot perform color 3D printing , providing texture based stickers Figure three Full-color hierarchical slice algorithm for dimensional models

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