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A Portable 3-Dimensional Digitizer for Computer Graphics 3D Modeling

机译：用于计算机图形3D建模的便携式3维数字化仪

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摘要

This project created a portable three-dimensional digitizer for computer graphics 3D modeling. It started from reviewing literature then constructed a digitizer, developed applications programs, created experiments and analyzed. The process of the machine started from reading pulse train of the arm rotation via Rotary Encoder at each joint. Next, it was processed by microcontroller and sent the results via USB port to PC. In order to calculated the coordinate x, y and z of Cartesian coordinate system. The obtained values are the coordinates of the application, when user recorded values of a prototype already. It displayed points which represented the 3D model. The result of the implementation of the project from the measurement of the standard sphere with a radius of 12.7 mm was found that the mean error is 0.184 mm or 1.455%. This error is acceptable and can be used in making a 3D model in computer graphics.
机译：该项目创建了用于计算机图形3D建模的便携式三维数字转换器。它从回顾文献开始，然后构造了数字化仪，开发了应用程序，创建了实验并进行了分析。机器的过程从在每个关节处通过旋转编码器读取手臂旋转的脉冲序列开始。接下来，它由微控制器处理，并通过USB端口将结果发送到PC。为了计算笛卡尔坐标系的坐标x，y和z。当用户已经记录了原型的值时，获得的值就是应用程序的坐标。它显示了代表3D模型的点。通过测量半径为12.7 mm的标准球体来执行该项目的结果发现，平均误差为0.184 mm或1.455％。该错误是可以接受的，可以用于在计算机图形学中建立3D模型。

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