平面复杂花纹图案的3D建模算法研究

Research on 3D Modeling Algorithm for Complex Plane Pattern

通过对平面复杂花纹图像或图形的矢量化处理或数据转换,得到平面复杂花纹图案清晰轮廓的数据矩阵,然后采用扫描分析法求出扫描线与轮廓线的交点,并进行配对和中点计算;运用二次Bezier曲线构建其3D模型数据矩阵,再对模型数据进行后期优化处理,最终生成平面复杂花纹图案的3D模型。该建模方法能够构想和创建平面花纹图案的虚拟模型,生成光滑细腻的模型曲面和具有图案基本结构特征的逼真模型,并能灵活控制模型生成的形态。建模算法具有复杂度低、建模速度快、实用性强等特点。

The algorithm presented in this paper firstly obtains the data matrix of the clear outline of planar complex patterns through vectorization and data conversion of the planar complex pattern image or graphic, secondly finds the in- tersection points of scan lines and contours using scan analysis method, and matches the intersection points and calcu- lates midpoints, finally builds the 3D model of the planar complex patterns by the 3D model data matrix that is created using quadratic Bezier curves and post-optimization processing of the model data. This modeling approach can conceive and build a virtual model of the plane patterns. It can generate smooth and delicate curving surface and vivid model which has the basic structure characteristics of the patterns, and flexibly control the model generating form. The mode- ling algorithm has the features of low complexity, fast modeling speed, and strong practicality.