new SuperMap3D.ShowGeometryInstanceAttribute(show)

Value and type information for per-instance geometry attribute that determines if the geometry instance will be shown.
Name Type Default Description
show Boolean true optional Determines if the geometry instance will be shown.
var instance = new SuperMap3D.GeometryInstance({
  geometry : new SuperMap3D.BoxGeometry({
    vertexFormat : SuperMap3D.VertexFormat.POSITION_AND_NORMAL,
    minimum : new SuperMap3D.Cartesian3(-250000.0, -250000.0, -250000.0),
    maximum : new SuperMap3D.Cartesian3(250000.0, 250000.0, 250000.0)
  modelMatrix : SuperMap3D.Matrix4.multiplyByTranslation(SuperMap3D.Transforms.eastNorthUpToFixedFrame(
    SuperMap3D.Cartesian3.fromDegrees(-75.59777, 40.03883)), new SuperMap3D.Cartesian3(0.0, 0.0, 1000000.0), new SuperMap3D.Matrix4()),
  id : 'box',
  attributes : {
    show : new SuperMap3D.ShowGeometryInstanceAttribute(false)


readonlycomponentDatatype : ComponentDatatype

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

readonlycomponentsPerAttribute : Number

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

readonlynormalize : 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.
Default Value: true

value : Uint8Array

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


staticSuperMap3D.ShowGeometryInstanceAttribute.toValue(show, result)Uint8Array

Converts a boolean show to a typed array that can be used to assign a show attribute.
Name Type Description
show Boolean The show value.
result Uint8Array optional The array to store the result in, if undefined a new instance will be created.
The modified result parameter or a new instance if result was undefined.
var attributes = primitive.getGeometryInstanceAttributes('an id'); = SuperMap3D.ShowGeometryInstanceAttribute.toValue(true,;