Computer aided Kongming lantern manufacturing method

Abstract

The invention relates to Kongming lanterns, in particular to a computer aided Kongming lantern manufacturing method. The method includes: selecting a required Kongming lantern three-dimensional model from a model library; cutting open the bottom of the Kongming lantern three-dimensional model to sever as an opening of the Kongming lantern; allowing the bottom opening to be close to a circle so as to conveniently attach the bottom opening to a bamboo frame, removing high-frequency noise of the Kongming lantern three-dimensional model, and improving volume-area ratio of the three-dimensional model to allow the three-dimensional model to rise easily; using unfoldable curves and planes to approach the original three-dimensional model, and keeping feature correspondence to the original three-dimensional model during approaching as much as possible; determining minimal size, capable of rising successfully, of the shape-fixed Kongming lantern according to related parameters; unfolding all unfoldable pieces of the Kongming lantern to a two-dimensional plane, printing and outputting to flame-retardant paper, cutting according to the printed shape, assembling the cut pieces into an air sac of the Kongming lantern, sleeving the bamboo frame, and placing fuel. By the method, armatures can manufacture exquisite Kongming lanterns of different shapes and capable of rising.

Description

technical field [0001] The invention relates to Kongming lanterns, in particular to a computer-aided Kongming lantern manufacturing method. Background technique [0002] In recent years, it has become a trend to use computer graphics technology for various entertainment applications to help amateurs enjoy this self-creation process. Early examples include methods for making handmade origami from a given 3D model (e.g. J. Mitani and H. Suzuki, “Making papercraft toys from meshes using strip-based approximate unfolding,” ACM Transacitons on Graphics, vol. 23, no .3, pp.259–263, 2004), and then these methods were extended to some similar applications such as the production of plush toys, woven models, etc. (see Y.Mori and T.Igarashi, "Plushie: an interactive design system for plush toys,” ACM Transacitons on Graphics, vol.26, no.3, 2007.). Recently, some new applications have emerged, including base-releif (T. Weyrich, J. Deng, C. Barnes, S. Rusinkiewicz, and A. Finkelstein, ...

AI Technical Summary

Problems solved by technology

[0005] However, most of the Kongming lanterns currently on the market are simple in shape and bloated, mainly due to two reasons: (1) From the perspective of assembly, the design can be assembled into various pieces of paper (plastic pieces) in a specific shape and pasted Together is a highly skilled work; (2) It is difficult to judge whether Kongming lanterns can be lifted into the air when making them, which often depends on the experience and knowledge of the creators, so people tend to make the lanterns very large conservatively

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