IDP.Math.KGeomLib.createPlaneByThreePoints() method
通过三点创建一个平面。 平面的原点时第一个点，平面的法向是p1到p2向量与p1到p3向量的叉乘，x轴是p1到p2向量的单位向量。
Create a plane from three points. The generated plane's origin is point1, the normal is the cross production of (point2 - point1) and (point3 - point1), the x axis is (point2 - point1).normalize().
Signature:
createPlaneByThreePoints(point1: KPoint3d, point2: KPoint3d, point3: KPoint3d): KPlane | null;
Links: createPlaneByThreePoints(point1: KPoint3d, point2: KPoint3d, point3: KPoint3d): KPlane | null;
Parameters
Parameter | Type | Description |
|---|---|---|
point1 | 输入点p1。 The input p1. | |
point2 | 输入点p2。 The input p2. | |
point3 | 输入点p3。 The input p3. |
Returns:
KPlane | null
由三点构造的平面，若三点共线则范围null。
The plane constructed by the three points or null (if three points are colinear).