KBE3D / KBCore / Cesium / CoplanarPolygonOutlineGeometry

类: CoplanarPolygonOutlineGeometry

A description of the outline of a polygon composed of arbitrary coplanar positions.

示例

const polygonOutline = new Cesium.CoplanarPolygonOutlineGeometry({
  positions : Cesium.Cartesian3.fromDegreesArrayHeights([
     -90.0, 30.0, 0.0,
     -90.0, 30.0, 1000.0,
     -80.0, 30.0, 1000.0,
     -80.0, 30.0, 0.0
  ])
});
const geometry = Cesium.CoplanarPolygonOutlineGeometry.createGeometry(polygonOutline);

参数

Object with the following properties:

参数

A polygon hierarchy that can include holes.

属性

packedLength

packedLength: number

The number of elements used to pack the object into an array.

方法

fromPositions()

static fromPositions(options: { positions: Cartesian3[]; }): CoplanarPolygonOutlineGeometry

A description of a coplanar polygon outline from an array of positions.

参数

options

Object with the following properties:

positions

Cartesian3[]

An array of positions that defined the corner points of the polygon.

返回

CoplanarPolygonOutlineGeometry

---

pack()

static pack(value: CoplanarPolygonOutlineGeometry, array: number[], startingIndex?: number): number[]

Stores the provided instance into the provided array.

参数

value

CoplanarPolygonOutlineGeometry

The value to pack.

array

number[]

The array to pack into.

startingIndex?

number

The index into the array at which to start packing the elements.

返回

number[]

The array that was packed into

---

unpack()

static unpack(array: number[], startingIndex?: number, result?: CoplanarPolygonOutlineGeometry): CoplanarPolygonOutlineGeometry

Retrieves an instance from a packed array.

参数

array

number[]

The packed array.

startingIndex?

number

The starting index of the element to be unpacked.

result?

CoplanarPolygonOutlineGeometry

The object into which to store the result.

返回

CoplanarPolygonOutlineGeometry

The modified result parameter or a new CoplanarPolygonOutlineGeometry instance if one was not provided.

---

createGeometry()

static createGeometry(polygonGeometry: CoplanarPolygonOutlineGeometry): Geometry | undefined

Computes the geometric representation of an arbitrary coplanar polygon, including its vertices, indices, and a bounding sphere.

参数

polygonGeometry

CoplanarPolygonOutlineGeometry

A description of the polygon.

返回

Geometry | undefined

The computed vertices and indices.

构造函数

构造函数

new CoplanarPolygonOutlineGeometry(options: { polygonHierarchy: PolygonHierarchy; }): CoplanarPolygonOutlineGeometry

参数

options

polygonHierarchy

PolygonHierarchy

返回

CoplanarPolygonOutlineGeometry