projectionPosition

Computes the Cartesian3 coordinates of two Cartesian3 projection points.

Usage

const projection = projectionPosition(p0, p1)

Give two vector $p_0=(x_0,y_0,z_0)$ and $p_1=(x_1,y_1,z_1)$, The derivation of this function is as follows:

1. $\text{projection}=k\cdot p_0$
2. $(k\cdot p_0-p_1)\cdot p_0=0$
3. $k=\frac{p_0\cdot p_1}{p_0\cdot p_0}$

Type Declarations

Details

/**
 * Get the projection position of p1 on p0
 *
 * ## example
 * ```js
 * const p0 = new Cesium.Cartesian3(1, 0, 0);
 * const p1 = new Cesium.Cartesian3(1, 1, 0);
 *
 * const projectedPosition = projectionPosition(p0, p1);
 * console.log(projectedPosition); // Output: Cartesian3 {x: 1, y: 0, z: 0}
 * ```
 */
export declare function projectionPosition(
  p0: Cesium.Cartesian3,
  p1: Cesium.Cartesian3,
): Cesium.Cartesian3

Source

source