For fast calculating the signed distance from spatial point to STL model, a reference ballmethod was put foward based on linear octree.
针对如何快速求取空间点到STL模型表面有符号距离这一问题,提出一种基于线性八叉树的参考球方法。
2
Nematicidal activity of aloperine, cytisine, N methylcytisine and matrine was bioassayed by the agar medium method and the cotton ballmethod.
使用培养基法和棉球法测定了苦豆碱、野靛碱、甲基野靛碱、苦参碱对松材线虫的杀线活性。
3
The softening point of these materials was determined by ring and ballmethod. The gardner method was used to evaluate the colorimetry and grade. The materials were characterized in detail by IR.