DistanceDisplayConditionGeometryInstanceAttribute

new SuperMap3D.DistanceDisplayConditionGeometryInstanceAttribute(near, far)

Value and type information for per-instance geometry attribute that determines if the geometry instance has a distance display condition.

Name	Type	Default	Description
`near`	Number	`0.0`	optional The near distance.
`far`	Number	`Number.MAX_VALUE`	optional The far distance.

Throws:

DeveloperError : far must be greater than near.

Example:

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.DistanceDisplayConditionGeometryInstanceAttribute(100.0, 10000.0)
  }
});

See:

Members

readonlycomponentDatatype : ComponentDatatype

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

Default Value: ComponentDatatype.FLOAT

readonlycomponentsPerAttribute : Number

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

Default Value: 3

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: false

value : Float32Array

The values for the attributes stored in a typed array.

Default Value: [0.0, 0.0, Number.MAX_VALUE]

Methods

staticSuperMap3D.DistanceDisplayConditionGeometryInstanceAttribute.fromDistanceDisplayCondition(distanceDisplayCondition) → DistanceDisplayConditionGeometryInstanceAttribute

Creates a new DistanceDisplayConditionGeometryInstanceAttribute instance given the provided an enabled flag and DistanceDisplayCondition.

Name	Type	Description
`distanceDisplayCondition`	DistanceDisplayCondition	The distance display condition.

Returns:

The new DistanceDisplayConditionGeometryInstanceAttribute instance.

Throws:

DeveloperError : distanceDisplayCondition.far must be greater than distanceDisplayCondition.near

Example:

var instance = new SuperMap3D.GeometryInstance({
  geometry : geometry,
  attributes : {
    color : SuperMap3D.DistanceDisplayConditionGeometryInstanceAttribute.fromDistanceDisplayCondition(distanceDisplayCondition),
  }
});

staticSuperMap3D.DistanceDisplayConditionGeometryInstanceAttribute.toValue(distanceDisplayCondition, result) → Float32Array

Converts a distance display condition to a typed array that can be used to assign a distance display condition attribute.

Name	Type	Description
`distanceDisplayCondition`	DistanceDisplayCondition	The distance display condition value.
`result`	Float32Array	optional The array to store the result in, if undefined a new instance will be created.

Returns:

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

Example:

var attributes = primitive.getGeometryInstanceAttributes('an id');
attributes.distanceDisplayCondition = SuperMap3D.DistanceDisplayConditionGeometryInstanceAttribute.toValue(distanceDisplayCondition, attributes.distanceDisplayCondition);