de.javagl.jgltf.model

Class AccessorDatas

java.lang.Object

de.javagl.jgltf.model.AccessorDatas

public class AccessorDatas
extends java.lang.Object

Methods to create instances of the accessor data utility classes that allow a typed access to the data that is contained in the buffer view that the accessor refers to.

Unless otherwise noted, none of the arguments to these methods may be null.

Method Summary

Modifier and Type	Method and Description
static java.lang.Number[]	computeMax(AccessorData accessorData) Compute the the maximum component values of the given AccessorData
static java.lang.Number[]	computeMin(AccessorData accessorData) Compute the the minimum component values of the given AccessorData
static AccessorData	create(AccessorModel accessorModel) Create the AccessorData for the given AccessorModel
static AccessorData	create(AccessorModel accessorModel, java.nio.ByteBuffer byteBuffer) Create the AccessorData for the given AccessorModel that refers to the data from the given buffer.
static AccessorData	create(int componentType, java.nio.ByteBuffer bufferViewData, int byteOffset, int count, ElementType elementType, java.lang.Integer byteStride) Create an AccessorData depending on the given component type.
static AccessorFloatData	createFloat(AccessorModel accessorModel) Creates an AccessorFloatData for the given AccessorModel
static java.lang.String	createString(AccessorData accessorData, int elementsPerRow) Creates a (possibly large!)
static boolean	isByteType(int type) Returns whether the given constant is GL_BYTE or GL_UNSIGNED_BYTE.
static boolean	isFloatType(int type) Returns whether the given constant is GL_FLOAT.
static boolean	isIntType(int type) Returns whether the given constant is GL_INT or GL_UNSIGNED_INT.
static boolean	isShortType(int type) Returns whether the given constant is GL_SHORT or GL_UNSIGNED_SHORT.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

create

public static AccessorData create(AccessorModel accessorModel)

Create the AccessorData for the given AccessorModel

Parameters:

accessorModel - The AccessorModel

Returns:

The AccessorData

create

public static AccessorData create(AccessorModel accessorModel,
                                  java.nio.ByteBuffer byteBuffer)

Create the AccessorData for the given AccessorModel that refers to the data from the given buffer.

Parameters:

accessorModel - The AccessorModel

byteBuffer - The byte buffer containing the data

Returns:

The AccessorData

create

public static AccessorData create(int componentType,
                                  java.nio.ByteBuffer bufferViewData,
                                  int byteOffset,
                                  int count,
                                  ElementType elementType,
                                  java.lang.Integer byteStride)

Create an AccessorData depending on the given component type. This will return an AccessorByteData, AccessorShortData, AccessorIntData or AccessorFloatData

Parameters:

componentType - The component type, as a GL constant (for example, GL_UNSIGNED_SHORT or GL_FLOAT)

bufferViewData - The buffer view data that the accessor refers to

byteOffset - The byte offset for the accessor

count - The count (number of elements) for the accessor

elementType - The ElementType For example, if the accessor type is "VEC3", then this will be 3

byteStride - The optional byte stride for the accessor data

Returns:

The AccessorData

Throws:

java.lang.IllegalArgumentException - If the given component type is not a valid GL constant

isByteType

public static boolean isByteType(int type)

Returns whether the given constant is GL_BYTE or GL_UNSIGNED_BYTE.

Parameters:

type - The type constant

Returns:

Whether the type is a byte type

isShortType

public static boolean isShortType(int type)

Returns whether the given constant is GL_SHORT or GL_UNSIGNED_SHORT.

Parameters:

type - The type constant

Returns:

Whether the type is a short type

isIntType

public static boolean isIntType(int type)

Returns whether the given constant is GL_INT or GL_UNSIGNED_INT.

Parameters:

type - The type constant

Returns:

Whether the type is an int type

isFloatType

public static boolean isFloatType(int type)

Returns whether the given constant is GL_FLOAT.

Parameters:

type - The type constant

Returns:

Whether the type is a float type

createFloat

public static AccessorFloatData createFloat(AccessorModel accessorModel)

Creates an AccessorFloatData for the given AccessorModel

Parameters:

accessorModel - The AccessorModel

Returns:

The AccessorFloatData

Throws:

java.lang.IllegalArgumentException - If the component type of the given accessorModel is not GL_FLOAT

computeMin

public static java.lang.Number[] computeMin(AccessorData accessorData)

Compute the the minimum component values of the given AccessorData

Parameters:

accessorData - The AccessorData

Returns:

The minimum values

Throws:

java.lang.IllegalArgumentException - If the given model has an unknown type

computeMax

public static java.lang.Number[] computeMax(AccessorData accessorData)

Compute the the maximum component values of the given AccessorData

Parameters:

accessorData - The AccessorData

Returns:

The maximum values

Throws:

java.lang.IllegalArgumentException - If the given model has an unknown type

createString

public static java.lang.String createString(AccessorData accessorData,
                                            int elementsPerRow)

Creates a (possibly large!) string representation of the given AccessorData, by calling AccessorByteData.createString(Locale, String, int), AccessorShortData.createString(Locale, String, int), AccessorIntData.createString(Locale, String, int) or AccessorFloatData.createString(Locale, String, int), depending on the type of the given data, with an unspecified format string.

Parameters:

accessorData - The AccessorData

elementsPerRow - The number of elements per row

Returns:

The string