Method for generating three-dimensional metal advertising character model

Abstract

A method for generating a three-dimensional metal advertising character model, including identifying connected areas and closed contours from two-dimensional figures of advertising characters; obtaining the corresponding entity area of ​​each connected area; establishing a coordinate system of advertising characters; making the coordinate system of advertising characters The y-axis is parallel or coincident with the y-axis of the world coordinate system, and the height of the two-dimensional graphics on the y-axis is obtained; input the inclination angle of the top surface of the advertisement character, the height of the front end and the height of the initial rear end; the rotation is based on the x-axis of the coordinate system of the advertisement character Axis, rotate the two-dimensional figure to the first reference plane; translate the two-dimensional figure upward along the normal direction of the first reference plane to obtain S1 and the second reference plane; translate S1 to obtain the second contour group; project S1 to obtain S3 ; The first contour group is used as the top shape of the advertisement word, and the bottom surface shape and the side shape of the advertisement word are obtained by S2 and S3. The invention has the advantages of automatically identifying the two-dimensional graphics of the advertising characters, generating the top surface, the bottom surface and the side surfaces of the three-dimensional advertising characters, and having high production efficiency.

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

Images