Class: ShowGeometryInstanceAttribute

ShowGeometryInstanceAttribute

new ShowGeometryInstanceAttribute(showopt)

Value and type information for per-instance geometry attribute that determines if the geometry instance will be shown.
Parameters:
Name Type Attributes Default Description
show Boolean <optional>
 true Determines if the geometry instance will be shown.
Source:
See:
Example
var 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)
  }
});

Members

(readonly) componentDatatype :ComponentDatatype

The datatype of each component in the attribute, e.g., individual elements in ColorGeometryInstanceAttribute#value.
Type:
Default Value:
  • ComponentDatatype.UNSIGNED_BYTE
Source:

(readonly) componentsPerAttribute :Number

The number of components in the attributes, i.e., ColorGeometryInstanceAttribute#value.
Type:
  • Number
Default Value:
  • 1
Source:

(readonly) normalize :Boolean

When true and componentDatatype 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.
Type:
  • Boolean
Default Value:
  • true
Source:

value :Uint8Array

The values for the attributes stored in a typed array.
Type:
  • Uint8Array
Default Value:
  • [1.0]
Source:

Methods

(static) toValue(show, resultopt) → {Uint8Array}

Converts a boolean show to a typed array that can be used to assign a show attribute.
Parameters:
Name Type Attributes Description
show Boolean The show value.
result Uint8Array <optional>
 The array to store the result in, if undefined a new instance will be created.
Source:
Returns:
The modified result parameter or a new instance if result was undefined.
Type
Uint8Array
Example
var attributes = primitive.getGeometryInstanceAttributes('an id');
attributes.show = Cesium.ShowGeometryInstanceAttribute.toValue(true, attributes.show);