But from a random 3d model of their corresponding contour curve and its various point coordinates?
但如何从一个任意的三维空间模型得到其相应的轮廓曲线和其各点的坐标值呢？
Taking gauss curvatures and normal vectors as random variables, Lorentz Curve was extended to 3d Lorentz Surface.
以高斯曲率和法向量为随机变量，将洛伦兹曲线扩展为三维，得到洛伦兹曲面。
Equivalent elastic properties of asphalt mixture were obtained by the method of average volume after establishing the 3d random lattice model with appropriate load and boundary conditions.
通过建立沥青混合料的三维随机格形模型，加载适当载荷和边界条件求解后，采用体积平均法得出混合料等效弹性性质。
Moreover, the set up of the system is more random and flexible, and the application value of the non contacting optical flexible 3d measurement system is enhanced.
而且使系统的建立更为随意、灵活，增强了非接触式光学柔性三坐标测量系统的应用价值。
Special attention is given to the design of 3D engine, rendering of 3D scene, the algorithm of generating random fractal terrain, application of trajectory simulation.
重点讨论了三维引擎总体结构框架设计、引擎内部模型数据管理、三维场景渲染、随机地形生成的算法、弹道仿真等技术的应用。
By means of scan die or toy with random position, DR-CT can provide the Polygon mesh models with high quality 3D description.
采用DR-CT系列扫描仪可以快速的对模具进行扫描， 模具可以任意摆置，并自动进行多角度拼接，得到物体高精度三维数据描述。
By means of scan die or toy with random position, DR-CT can provide the Polygon mesh models with high quality 3D description.
采用DR-CT系列扫描仪可以快速的对模具进行扫描， 模具可以任意摆置，并自动进行多角度拼接，得到物体高精度三维数据描述。
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