点坐标

• This thesis deduces computational formulations of displacement sensitivity and stress sensitivity in structural shape optimization considering geometric nonlinear element . in the calculation of stress sensitivity , the modules required to cut the stiffness matrix of node coordinates few . in order to simplify calculation and make program conveniently , this thesis uses half - parser method
  在空间刚架结构的形状优化设计中,关键的一项工作就是计算应力灵敏度,在计算应力对刚架结构形状优化的设计变量? ?结点坐标的灵敏度时,需用到单元刚度矩阵对结点坐标的导数。
• Each program consists of the following three modules : the first one is the program of managing and driving the dialog box , which can adjust the input parameters of the dialog box ; the second one is the calculating program , which can calculate the coordinates of the points in the unfolding drawing . the parameters used in the second module are obtained from the first module . the third module is drawing module
  每一段绘图程序都由三个模块构成，第一模块为对话框管理和驱动程序并对对话框输入的参数进行回调；第二模块为计算程序，利用上面回调所得到的参数，再根据上面得出的计算公式，计算展开图上各点坐标；第三模块为绘图模块。
• The arithmetic , which aimed at the character of object localization and tracking of robot vision system with one camera and based on characteristic color as object character and applied figure distinguishing arithmetic and object edge detection , completed object localization and tracking by obtaining position feature point coordinate on image plane
  此算法针对单摄像机机器人视觉系统目标定位与跟踪的特点，基于特征颜色为目标特征，辅以形状判别算法和目标边缘检测，通过获取目标物体在图像中的位置特征点坐标，来完成对目标物体的定位与跟踪。
• The key issues , such as human motion tracking and 3d motion recovery , are deeply studied . to verify our thoughts , we develop a video based human motion capture prototype system at last , it can extract human motion information from a video clip with fixed background , and generate a motion capture data file to implement the process of human motion capture
  系统的具体做法是首先在首帧中标注人体的各个关节点位置，然后在后续帧中做基于特征的跟踪，生成二维关节点坐标序列，再对运动做三维重建，最后经过对数据的转换和重新组织，生成所需的运动捕获数据文件。
• Some examples are given in this dissertation . first , the coordinate values of a group of discrete points on the cam profile are achieved by conventional design method which are then used as measured data of the cam profile . then the kinematic analysis of the cam mechanism is performed by the method developed in this paper
  本文以已知从动件运动规律的凸轮机构为例，利用正设计方法求出凸轮实际廓线一组离散点坐标值，并以此作为凸轮检测数据，运用本文提出的分析方法进行运动反求，并将反求所得结果与理论结果加以分析比较。
• Then , according to some order , execute the information ; translate them into coordinate values of the motion point , velocities and the on - off values of the m codes . the information that have already been translated will be put into a double end queue , then , transferred to interpolation module to control the machine
  然后,按照一定执行顺序,执行结构中的信息,将这些信息翻译成可供插补模块执行的运动点坐标、运动速度以及m代码开关量等,翻译好后的每一行的nc代码信息作为一个节点放到一个双端队列里去。
• The inner and outer orientation elements of non - mearsured camera are figured out in the method of direct linear transformation ( dlt ) on the basis of the known coordination of key points in the image . the tolerance analysis of inner and outer orientation elements is accomplished with the coordination of redundant key points . finally , the physical spacial coordination of the image points is calculated in the way of dlt
  运用直接线性变换法( dlt ) ，根据测量图像中控制点的已知坐标，计算出非量测相机的内、外方位元素，使用多余的控制点坐标，完成内、外方位元素的误差分析，最后运用直接线性变换法根据测量点的像点坐标计算出相应的物方空间坐标。
• Kinematic analysis : by denavit - hartenberg method , space geometry relationship of each pole relative to fixed reference frame can be described with equal index transform , also do space relationship of two adjacent poles with 4x4 equal index . so equivalent equal index transform matrix can be deduced from them . when sportive equations and sportive coordinate frame of workpiece exercise point are set up , the coordinate values of exercise point can be got , the pose and situation of two manipulators are analysed , in the end each joint valiable and its velocity , acceleration are worked o ut
  运动学分析：利用denavit ? hartenberg法，用齐次变换描述各个杆件相对于固定参考系的空间几何关系，用一4 4的齐次变换矩阵描述机邻两杆的空间关系，从而推导出等价齐次变换矩阵，建立两机械手运动方程，确定工件作业点随动坐标系，求出作业点坐标，对两机械手的位姿进行解析，求出两机械手的各关节变量及其速度、加速度值。