苹果果实几何造型及可视化研究

提出了一种苹果果实几何造型的方法.采用Bé zier曲线拟合苹果果实的轮廓,通过加入表征品种特征的扰动函数来控制果实表面的果棱.模型可控参数少且具有明确的生物学意义,易于与农业知识结合.针对苹果果实品种繁多、表面颜色丰富的特点,除了采用纹理映射方法绘制苹果表面外,还提出了基于颜色表的表面颜色随机填充法.试验结果表明该方法能够模拟多种苹果品种果实的外观特征,具有较好的真实感效果.

Geometry Modelling and Visualization of the Apple Fruit

A method for modeling geometry of apple fruit is proposed . It uses Bézier curves to fit the fruit outline, and control prism of the fruit surface by introducing a noise function which conforms to the variety characteristic. The model uses a few of parameters with significant biology meaning and is easy to integrate with agricultural knowledge. It proposes face color random filling method based color table to solve the characteristic of numerous types of apple fruit and rich colors of apple face except uses texture mapping to render apple face. The results show this method can simulate various types of apple fruit and has better realistic effect.