KBE3D / KBCore / Cesium / ShowGeometryInstanceAttribute

类: ShowGeometryInstanceAttribute

Value and type information for per-instance geometry attribute that determines if the geometry instance will be shown.

示例

const instance = new Cesium.GeometryInstance({
  geometry : new Cesium.BoxGeometry({
    vertexFormat : Cesium.VertexFormat.POSITION_AND_NORMAL,
    minimum : new Cesium.Cartesian3(-250000.0, -250000.0, -250000.0),
    maximum : new Cesium.Cartesian3(250000.0, 250000.0, 250000.0)
  }),
  modelMatrix : Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
    Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)), new Cesium.Cartesian3(0.0, 0.0, 1000000.0), new Cesium.Matrix4()),
  id : 'box',
  attributes : {
    show : new Cesium.ShowGeometryInstanceAttribute(false)
  }
});

参数

Determines if the geometry instance will be shown.

属性

value

value: Uint8Array

The values for the attributes stored in a typed array.

---

componentDatatype

readonly componentDatatype: ComponentDatatype

The datatype of each component in the attribute, e.g., individual elements in ColorGeometryInstanceAttribute#value.

---

componentsPerAttribute

readonly componentsPerAttribute: number

The number of components in the attributes, i.e., ColorGeometryInstanceAttribute#value.

---

normalize

readonly normalize: boolean

When <code>true</code> and <code>componentDatatype</code> is an integer format, indicate that the components should be mapped to the range [0, 1] (unsigned) or [-1, 1] (signed) when they are accessed as floating-point for rendering.

方法

toValue()

static toValue(show: boolean, result?: Uint8Array<ArrayBufferLike>): Uint8Array

Converts a boolean show to a typed array that can be used to assign a show attribute.

参数

show

boolean

The show value.

result?

Uint8Array<ArrayBufferLike>

The array to store the result in, if undefined a new instance will be created.

返回

Uint8Array

The modified result parameter or a new instance if result was undefined.

示例

const attributes = primitive.getGeometryInstanceAttributes('an id');
attributes.show = Cesium.ShowGeometryInstanceAttribute.toValue(true, attributes.show);

构造函数

构造函数

new ShowGeometryInstanceAttribute(show?: boolean): ShowGeometryInstanceAttribute

参数

show?

boolean

返回

ShowGeometryInstanceAttribute