com.luciad.format.tiled3d.ogc3dtiles

LuciadLightspeedEnum ELcdOGC3DTilesMeshCompressionType

java.lang.Object

java.lang.Enum<ELcdOGC3DTilesMeshCompressionType>

com.luciad.format.tiled3d.ogc3dtiles.ELcdOGC3DTilesMeshCompressionType

All Implemented Interfaces:

Serializable, Comparable<ELcdOGC3DTilesMeshCompressionType>

public enum ELcdOGC3DTilesMeshCompressionType
extends Enum<ELcdOGC3DTilesMeshCompressionType>

Defines the supported mesh compression algorithms for encoding mesh data as OGC 3D Tiles:

Supported values:

• NONE
• DRACO

Use: TLcdOGC3DTilesModelEncoder.setMeshCompression(com.luciad.format.tiled3d.ogc3dtiles.ELcdOGC3DTilesMeshCompressionType)

Since:

2021.1

Enum Constant Summary

Enum Constants

Enum Constant and Description
DRACO Draco mesh compression.
NONE No mesh compression

Method Summary

Modifier and Type	Method and Description
static ELcdOGC3DTilesMeshCompressionType	valueOf(String name) Returns the enum constant of this type with the specified name.
static ELcdOGC3DTilesMeshCompressionType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NONE

public static final ELcdOGC3DTilesMeshCompressionType NONE

No mesh compression

DRACO

public static final ELcdOGC3DTilesMeshCompressionType DRACO

Draco mesh compression.

The Google Draco library is an open-source royalty-free library offering compression for 3D graphics. The library was extended for GLTF 2.0 by Khronos.

Draco mesh compression can significantly reduce the size of 3D content: it compresses vertex positions, normals, texture coordinates, colors, and other generic properties. This reduces the size of the B3DM files inside the OGC 3D Tiles dataset, which leads to faster streaming. The client in which you want to visualize the data needs to support Draco compression. It will decompress the data at runtime.

Although the time to decode the tiles increases, the time to stream the tiles decreases more, resulting in an overall reduction of load times. The maximum error for the resulting mesh is less than 1mm.

Method Detail

values

public static ELcdOGC3DTilesMeshCompressionType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ELcdOGC3DTilesMeshCompressionType c : ELcdOGC3DTilesMeshCompressionType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ELcdOGC3DTilesMeshCompressionType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null