... 中桩高程测量；中平 center stake leveling 曲线控制点 curve control point 放线 setting-out of route； lay out of route ...
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Control Point Curve 控制点曲线 ; 画控制点曲线
This will create handles that can be used to control the size and shape of the curve at that point.
这将创建手柄，用来控制那个点的曲线的尺寸和形状。
To do this, the monotone curve is firstly drawn, and then without finding the coordinate of the inflexion point, the NC machining path can be obtained by the method of automatic direction control.
首先对单调NC轨迹曲线进行绘制，进一步用不求极值点坐标而实现自动控制变向的方法，求出NC加工轨迹；
A quadratic bezier curve has a start and an end point (blue dots) and just one control point (red dot) while a cubic bezier curve USES two control points.
它们都有一个起点一个终点图中的蓝点，但二次方贝塞尔曲线只有一个红色控制点点而三次方贝塞尔曲线有两个。
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