But, if it's like a circle or a half circle, or things like that, then even if a problem doesn't tell you to do it in polar coordinates you might want to seriously consider it.
但是如果它是一个圆或者半圆，或者是类似的，即使题目没有提示你在极坐标里做，你也应该认真考虑一下。
Now we have a motion-tracking function that is run for every frame of video that comes in. Let's retrieve the coordinates and draw a blue circle where there is motion.
现在有了一个运动跟踪函数，对于视频的每一帧都会运行它。
Each half-circle is offset by computed x and y coordinates in order to ensure that they are concentric.
根据算出的x和y坐标，各半圆将偏移以保证同心。
The Haversine formula is used generally for computing great-circle distances between two pairs of coordinates on a sphere.
该矢公式用于计算之间的两对大圈的距离，一般在一个球体上的坐标。
The experiments conducted on the diameter of circle and coordinates of circle center reveal that this method is practical.
通过对圆的直径和中心坐标的测量实验，结果表明，该方法切实可行。
In the filed of computer vision and image processing, the characteristic parameters such as the center coordinates and radius of circle and arc parts often need to be measured by their images.
在计算机视觉和图像处理中，经常需要根据圆孔或圆弧的图像求取其中心坐标和半径等特征参数。
By image calibration, median filtering and fast pattern matching processing algorithms, the system acquires the position information of the coordinates of the center of the circle of eccentric sprue.
经图像标定、中值滤波、快速图像匹配等处理算法，获得偏心加注口的圆心坐标位置信息。
But arc interpolation can be carried out on the condition that the center coordinates of a circle are known in CNC.
但是，在数控系统内部必须知道圆心的坐标，才能进行圆弧插补。
Measurable parameters include the coordinates of the circle center of the cutter teeth compact and the compact's back rake Angle and side sway Angle.
可测量的位置参数有切削齿复合片的圆心坐标及负前角、侧偏角等。
A circle is just a big point: in addition to the center coordinates it needs a radius.
圆本身就是一个很大的点：除了一个中心点坐标，其还需要一个半径来表示。
A new method for solving the coordinates of circular points in an image of an equilateral triangle and its inscribed circle was proposed.
提出了一种求解等边三角形及其内切圆的图像圆环点坐标新方法。
A new method for solving the coordinates of circular points in an image of an equilateral triangle and its inscribed circle was proposed.
提出了一种求解等边三角形及其内切圆的图像圆环点坐标新方法。
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