Generation method for three-dimensional metal advertisement word model

Abstract

The invention discloses a generation method for a three-dimensional metal advertisement word model. The method comprises the following steps that: identifying a connected region and a sealed outline from the two-dimensional graph of the advertisement word; obtaining an entity region corresponding to each connected region; establishing the coordinate system of the advertisement word; enabling the yshaft of the coordinate system of the advertisement word to be in parallel or coincident with the y shaft of a world coordinate system to obtain the height of a two-dimensional graph on the y shaft;inputting the inclination angle, the front end height and the initial rear end height of the top surface of the advertisement word; taking the x shaft of the coordinate system of the advertisement word as a rotation shaft, and rotating the two-dimensional graph to a first datum plane; upwards translating the two-dimensional graph along the normal direction of the first datum plane to obtain S1 anda second datum plane; translating the S1 to obtain a second outline group; projecting S1 to obtain S3; and taking the first outline group as the top surface shape of the advertisement word, and obtaining the bottom surface shape and the side surface shape of the advertisement word through S2 and S3. The generation method has the advantages that the two-dimensional graph of the advertisement wordcan be automatically identified to generate the top surface, the bottom surface and the side surface of the three-dimensional advertisement word, and production efficiency is high.

Description

technical field [0001] The invention relates to the field of advertising characters, in particular to a three-dimensional metal advertising character and a method for generating a model thereof. Background technique [0002] There are a wide variety of advertising characters, which can be divided into resin characters, metal characters, luminous characters, etc. according to different materials, and their application range is also very wide, except for the commonly used advertising signs hanging on shopping malls and buildings. , there are also some large-scale three-dimensional landscape characters used at the entrance of the building. By tilting the top surface of the three-dimensional characters at an angle, the eye-catching degree of the advertising characters can be improved, and the aesthetic feeling can also be improved. These advertising characters are generally made of durable materials such as metal It is the development trend of large-scale signboard advertising w...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of this method for making three-dimensional metal characters are as follows: 1. It is necessary to make a solid mold of wood or chevron board, and the corresponding planar expansion unit is obtained by covering the rubbing material on the regional member, which is time-consuming and expensive. easy to modify

2. The components of the sign area are divided artificially, which makes it impossible to carry out automated operations, resulting in low production efficiency and unable to realize the automatic production of advertising characters

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