kotlin-cesium-engine/cesium.engine/GeometryAttribute

GeometryAttribute

external class GeometryAttribute(source)

Values and type information for geometry attributes. A Geometry generally contains one or more attributes. All attributes together form the geometry's vertices.

const geometry = new Geometry({
  attributes : {
    position : new GeometryAttribute({
      componentDatatype : ComponentDatatype.FLOAT,
      componentsPerAttribute : 3,
      values : new Float32Array([
        0.0, 0.0, 0.0,
        7500000.0, 0.0, 0.0,
        0.0, 7500000.0, 0.0
      ])
    })
  },
  primitiveType : PrimitiveType.LINE_LOOP
});

Constructors

GeometryAttribute

constructor()

Properties

componentDatatype

var componentDatatype: ComponentDatatype

The datatype of each component in the attribute, e.g., individual elements in GeometryAttribute.values.

componentsPerAttribute

var componentsPerAttribute: Int

A number between 1 and 4 that defines the number of components in an attributes. For example, a position attribute with x, y, and z components would have 3 as shown in the code example.

normalize

var 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.

values

var values: Any

The values for the attributes stored in a typed array. In the code example, every three elements in values defines one attributes since componentsPerAttribute is 3.

GeometryAttribute

See also

Constructors

Properties