比方说,鼠标上下移动变换成沿一个轴向上的移动,而45度角的拖动常用于表示另一个轴上的运动。
Typically, up and down mouse movements translate into movement along one axis , whereas 45-degree-angle drags are used for each of the other two axes.
本文提出了一种球面上基本几何元素的园弧投影变换方法,并建立了三轴及对应的二轴园弧投影体系。
This paper presents a method of arc projective transformation of the fundamental geometric elements on a sphere, and sets up an are projective system for three axial and two axial correspondently.
根据舰船轴频电场信号的特点,提出了基于小波变换和神经网络的目标识别和分类方法。
According to the characteristic of shaft-rate electric field of ships, the recognition and classification methods of ship targets based on wavelet transform and neural network were proposed.
在5轴加工中,为使机床CNC系统能根据刀位点数据实时生成机床运动坐标,必须在CNC系统软件中加入机床运动空间坐标变换算法。
In order to generate the motion commanders of CNC machine tools, the coordinate conversion algorithm must be added into CNC system in 5-axis machining.
根据舰船轴频电场信号的特点,提出了基于小波变换的目标信号检测方法。
According to the characteristic of the shaft-rate electric field of a ship, this paper proposes a detection method for the target signal based on the wavelet transform.
采用最佳拟合直线方法,计算产品模型投影轮廓多边形的长轴方位,并据此计算旋转变换所需转动角度。
Strategies of cubic projection and rotation transformation were put forward in this paper in order to transform the complicated 3D issues into 2D planar issues.
利用一点光源和一束倾斜平行光拍摄了一种离轴全息透镜,并对其傅里叶变换特性进行了分析。
The Fourier transform characteristics of off-axis hololens was discussed, which was made by using a dot light source and an inclined parallel light.
借助保形变换将单连通区域及其边界化为上半平面与实轴。
With the help of the conformal transformation, we transform a simply connected region and its boundary into the upper half plane and real axis.
介绍采用小波变换进行信号降噪的原理;利用小波分解和重构函数对轧机主传动轴应力和扭矩信号进行降噪处理。
In this paper, the theory of wavelet transformation in signal noise reduction is introduced, together with the algorithm of signal decomposition and reconstruction.
对于地球极表象为直线的投影,本文运用对偶变换和广义轴位变换,得出了它们的几种新款式。
This paper obtains some new types by using dualistic transformation and generalized transformation of axis, the projections in straight line for earth pole.
算法对信号进行局部余弦变换时采用动态规划算法计算最佳局部余弦树,通过获得信号在时间轴上的最佳划分来获得信号的最优嫡编码。
In this algorithm, dynamic programming is used to calculate optimal local cosine tree during the LCT for signals, and the optimal entropy code is gained by the best partition of time axes.
给出旋转曲面生成过程的动画程序,并导出了任一曲线绕任意轴旋转的坐标间几何变换公式。
The animation programs of the making revolution surface is compiled, and a general coordinate formula of geometric transformation is deduced about an arbitrary revolution curve around a rotation axis.
将视频序列进行时间轴一维小波变换,利用变换后的高频帧信息提取出初步的运动掩模图像;
The original motion mask image can be extracted from the high frequency frames which resulting from temporal decomposition of the original video sequence by wavelet transform.
用分步计算和广义球面坐标变换两种方法对椭球体绕对称轴旋转的转动惯量进行了计算,计算表明,后一种方法简单、实用,在工程实际中有应用价值。
The rotary inertia of an ellipsoid rotating around the symmetry axis is calculated by use of the divided calculation and the extensive spherical coordinate transformation.
确定了物体对称轴的取向后,可使用坐标变换方法,将轴对称物体的对称轴旋转到某一特定的取向,便于使用特征面积分布作为特征参数进行快速的目标分类识。
By rotating the symmetry axis of a target into a defined orientation, it is efficient for target recognition to use the feature area distribution as a parameter.
文章论述了如何用变换轴测投影的方法求圆球正轴测图的阴影。
In this paper, we acguired a way of seeking shade and shadow of spheric surface in orthographic axonometric projection drawing by means of changing axonometric projection.
设置一固定宽度的时间窗,在某一信号上沿时间轴滑动,窗内观察到的信号段被变换到频率域,并在频率域求相关。
A certain time window with a fixed width is set and moved along the time axis of a signal.
将叶片模型变换到加工位置,算出五轴联动刀具轨迹。
The model of blade was changed to machining position, and the track of cutter for five-axis simultaneous machining was calculated.
利用保角变换,首先在二维平面得到双曲线型的等位线簇方程,然后过渡到三维空间,从而得到表面为单叶双曲面(两实半轴相等)的带电导体的等位面簇方程。
Transition to the three-dimensional space, then we obtain the equation of equipotential surface families of charged conductor with surface of hyperboloid of one sheet.
矢量变换后异步电动机数学模型中还存在M轴和T轴间的交叉电势的耦合作用,影响调速系统的控制性能。
In vector control, there are the cross-coupling voltages between the m and t components of the stator current for Induction Motor (IM), it affects the performance of speed control system.
由非傍轴光线光学理论出发,分析了光学元件列阵的成像特性,得到了普适的成像特性变换矩阵,该结论自动地包含了傍轴近似的情形。
According to the ray optics, the imaging properties of optical arrays areanalysed. A general imaging transfer matrix including a special case:paraxial ray approximation is obtained.
本文通过对直轴旋转叶片型面成形规律的分析,运用三维几何变换理论,推导出了直轴旋转叶片型面的数学模型。
In this paper, a mathematic model of the straight axis rotate blade is introduced by analysing the forming principle of the blade profile and applying the theory of 3d geometry transformation.
本文通过对直轴旋转叶片型面成形规律的分析,运用三维几何变换理论,推导出了直轴旋转叶片型面的数学模型。
In this paper, a mathematic model of the straight axis rotate blade is introduced by analysing the forming principle of the blade profile and applying the theory of 3d geometry transformation.
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