IndexDatatype

Members

<static, constant> UNSIGNED_BYTE :Enumeration

8-bit unsigned byte enumeration corresponding to UNSIGNED_BYTE and the type of an element in Uint8Array.

Default Value:

• 0x1401

<static, constant> UNSIGNED_INT :Enumeration

32-bit unsigned int enumeration corresponding to UNSIGNED_INT and the type of an element in Uint32Array.

Default Value:

• 0x1405

<static, constant> UNSIGNED_SHORT :Enumeration

16-bit unsigned short enumeration corresponding to UNSIGNED_SHORT and the type of an element in Uint16Array.

Default Value:

• 0x1403

Methods

<static> createTypedArray

Creates a typed array that will store indices, using either or Uint32Array depending on the number of vertices.

Parameters:

Name	Type	Description
numberOfVertices	Number	Number of vertices that the indices will reference.
indicesLengthOrArray	Any	Passed through to the typed array constructor.

Throws:

DeveloperError : center is required.

Returns:

Array A Uint16Array or Uint32Array constructed with indicesLengthOrArray.

Example

this.indices = IndexDatatype.createTypedArray(positions.length / 3, numberOfIndices);

<static> validate

Validates that the provided index datatype is a valid IndexDatatype.

Parameters:

Name	Type	Description
indexDatatype	IndexDatatype	The index datatype to validate.

Returns:

Boolean true if the provided index datatype is a valid enumeration value; otherwise, false.

Example

if (!IndexDatatype.validate(indexDatatype)) {
  throw new DeveloperError('indexDatatype must be a valid enumeration value.');
}