基于体积的方法由2维视图自动创建3维实体中剖视图的处理
摘要
本文介绍了一种基于体积法由2维剖视图重建实体模型的运算方法。现有的从2维正视图自动重建的工作都没有详细的阐述剖视图。基于体积的方法被认为更适合于处理各种类型的剖视图。基于体积的方法通过基本实体的布尔组合来建立3维实体。基本实体通过扫描输入视图中识别的回路的运动来建立。为了剖视图的显示所需要做的调整仅是在生成基本实体的回路的识别中。在运算法则中，剖视图的工程制图惯例被用于正确识别回路。实际上，运算法则简单而直观。已经得到全剖面、偏移剖面，半剖面的结果。未来的工作将会放在其他剖视图上，比如移出剖视图（断面），旋转剖视图和局部剖视图。
再组织一下语言就差不多了。
sweep operation on loops identified in the input view. 这个loop我翻译成回路，不一定准确，我个人觉得这个就是指各视图投影的线。
Modern various machine and equipment are more than on the gear reducer, generally USES bearing hole processing, and currently 1ta series boring coordinates are in single points, so in mass production to ensure its hole spacing tolerance, and low efficiency.
A fine molding machine is a special machine, when using a series of molding method. Once processed clamping workpiece, hole spacing in design, and when the machine has two of the coaxial when spindle box, while processing by rail, which not only ensures the transmission distance between accuracy, but also guarantee the hole, and greatly improve the coaxial tolerance of machining efficiency. Can realize automation, production line. It meets the modern production accuracy and efficiency.
This paper introduced a series of molding machine structure, working principle and control method, and automatic assembly line control principle and realization method.
Keywords: a large series boring
AC-frequency parameters of the development of digital multimeter
Abstract
Multimeter use of single-chip control, computing functions, according to the formula of discrete points and discrete Fourier transform, the power system parameters based on a sampling of ideas to exchange, at the same time all the way to achieve the frequency of the alternating current frequency, voltage rms, current RMS measurements. Calculation and analysis software of active power, reactive power, power factor, fundamental RMS voltage, RMS voltage total harmonic parameters such as the use of digital potentiometers, the system self-calibration, automatic conversion range. System to fully exploit the computing power of single-chip software instead of hardware circuits, so that greatly simplify the hardware circuit.
Digital Multimeter-frequency alternating current parameters can be achieved along the way at the same time-frequency alternating current value of the various power, voltage rms, current rms measurement parameters. It uses single-chip control, computing features to the software instead of hardware circuit design, the use of alternating current sampling methods, using a variety of calculation and analysis software, RMS, active power, reactive power, power factor and other parameters, so that greatly simplify the hardware circuit .
The system uses a digital potentiometer to facilitate accurate adjustment, long service life, the impact of the external environment by a small, stable performance characteristics of the circuit design with self-calibration, range can be automatically converted, high measurement accuracy, stable performance and so on.
Keywords: e-commerce online store dynamic pages JSP Access
