CoplanarPolygonOutlineGeometry - CesiumJS API 文档

new Cesium.CoplanarPolygonOutlineGeometry(options)

描述由任意的同位素位置组成的多边形的轮廓.

Name Type Description

options

object

下列属性的对象 :

Name	Type	Description
`polygonHierarchy`	PolygonHierarchy	多边形结构可以包括孔.

Example:

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);

See:

CoplanarPolygonOutlineGeometry.createGeometry

Members

packedLength : number

用于将对象组合成数组的元素数量.

Methods

static Cesium.CoplanarPolygonOutlineGeometry.createGeometry(polygonGeometry) → Geometry|undefined

计算任意的coplanar多边形的几何表示,包括其顶点,指数,以及边框.

Name	Type	Description
`polygonGeometry`	CoplanarPolygonOutlineGeometry	多边形描述.

Returns:

计算出的顶点和指数.

static Cesium.CoplanarPolygonOutlineGeometry.fromPositions(options) → CoplanarPolygonOutlineGeometry

从一系列位置来描述一个同位素多边形轮廓.

Name Type Description

options

object

下列属性的对象 :

Name	Type	Description
`positions`	Array.<Cartesian3>	定义多边形角点的一系列位置.

Returns:

static Cesium.CoplanarPolygonOutlineGeometry.pack(value, array, startingIndex) → Array.<number>

将所提供的实例存储到所提供的数组中.

Name	Type	Default	Description
`value`	CoplanarPolygonOutlineGeometry		包装的价值.
`array`	Array.<number>		装入的阵列.
`startingIndex`	number	`0`	optional The index into the array at which to start packing the elements.

Returns:

装入的阵列

static Cesium.CoplanarPolygonOutlineGeometry.unpack(array, startingIndex, result) → CoplanarPolygonOutlineGeometry

从组合的数组中获取实例 .

Name	Type	Default	Description
`array`	Array.<number>		装填的阵列.
`startingIndex`	number	`0`	optional The starting index of the element to be unpacked.
`result`	CoplanarPolygonOutlineGeometry		optional 存储结果的对象.

Returns:

如果不提供修改的结果参数或新的CoplanarPolygon OutlineGeometry实例.