确定是否显示几何实例的每英寸几何属性的值和类型信息.
| Name | Type | Default | Description |
|---|---|---|---|
show |
boolean |
true
|
optional Determines if the geometry instance will be shown. |
Example:
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)
}
});
See:
Members
readonly componentDatatype : ComponentDatatype
The datatype of each component in the attribute, e.g., individual elements in
ColorGeometryInstanceAttribute#value.
-
Default Value:
ComponentDatatype.UNSIGNED_BYTE
属性中的组件数, i.e .,
ColorGeometryInstanceAttribute#value .
-
Default Value:
1
当 NT 0 true NT 1 和 NT 2 组件Datatype NT 3 是一个整数格式时,
indicate that the components should be mapped to the range [0, 1] (unsigned)
或[-1, 1] (署名),当它们作为浮点进行渲染时.
-
Default Value:
true
输入数组中存储属性的值 .
-
Default Value:
[1.0]
Methods
将布尔显示转换为可以用来分配显示属性的输入数组.
| Name | Type | Description |
|---|---|---|
show |
boolean | 展出价值. |
result |
Uint8Array | optional 如果创建未定义的新实例, 将存储结果的数组 . |
Returns:
如果结果未定义, 修改后的结果参数或新实例 .
Example:
const attributes = primitive.getGeometryInstanceAttributes('an id');
attributes.show = Cesium.ShowGeometryInstanceAttribute.toValue(true, attributes.show);