KPoint2d interface

KPoint2d类代表一个二维点。 二维点有二个坐标。 二维点的坐标是不可变的。

The KPoint2d class represents a 2D point. A 2D point is an ordered triplet of numbers (labeled x, y). NOTE: KPoint2d's x, y are immutable.

Signature:

export interface KPoint2d 

Properties

Property	Modifiers	Type	Description
x	readonly	number	获得x坐标。 Get point's x value.
y	readonly	number	获得y坐标。 Get point's y value.

Methods

Method	Description
added(vec)	对当前点应用一向量，实现对点的平移。 Return a new KPoint3d which is this point add the input vector.
appliedMatrix3(matrix)	通过一个矩阵对当前点进行变换，获得一新点。 Return a new KPoint3d which is the result of this point transformed by the input matrix.
clone()	复制一个当前点。 Return the cloned point of this.
distanceTo(other)	求当前点到另一个点的距离。 Get the distance to another point.
isEqual(other, tolerance)	检查两个点在特定容差下是否相等。 Check whether two points are equal with specified tolerance.
squaredDistanceTo(other)	求当前点到另一个点的平方距离。 Get the distance to another point.
subtracted(point)	获得由目标点指向当前点的向量。 Return a new KVector3d which is this point subtract another point.