de.javagl.jgltf.model.impl

Class DefaultAccessorModel

java.lang.Object

de.javagl.jgltf.model.impl.AbstractModelElement

de.javagl.jgltf.model.impl.AbstractNamedModelElement

de.javagl.jgltf.model.impl.DefaultAccessorModel

All Implemented Interfaces:

AccessorModel, ModelElement, NamedModelElement

public final class DefaultAccessorModel
extends AbstractNamedModelElement
implements AccessorModel

Implementation of an AccessorModel

Constructor Summary

Constructors

Constructor and Description
DefaultAccessorModel(int componentType, int count, ElementType elementType) Creates a new instance

Method Summary

Modifier and Type	Method and Description
AccessorData	getAccessorData() Returns the AccessorData for this accessor.
BufferViewModel	getBufferViewModel() Returns the BufferViewModel for the data that this accessor provides access to.
int	getByteOffset() Returns the byte offset of this accessor referring to its BufferViewModel
int	getByteStride() Returns the byte stride between the starts of two consecutive elements of this accessor.
java.lang.Class<?>	getComponentDataType() Returns the data type of the components of this accessor.
int	getComponentSizeInBytes() Returns the size of one component, in bytes
int	getComponentType() Returns the component type of this accessor, as a GL constant.
int	getCount() Returns the number of elements that this accessor provides access to
int	getElementSizeInBytes() Returns the size of one element, in bytes.
ElementType	getElementType() Returns the ElementType that this accessor provides access to
java.lang.Number[]	getMax() Returns the maximum components of the AccessorData.
java.lang.Number[]	getMin() Returns the minimum components of the AccessorData.
int	getPaddedElementSizeInBytes() Obtain the padded size of one element, in bytes.
boolean	isNormalized() Returns whether this accessor contains normalized data
void	setAccessorData(AccessorData accessorData) Set the AccessorData for this accessor
void	setBufferViewModel(BufferViewModel bufferViewModel) Set the BufferViewModel for this model
void	setByteOffset(int byteOffset) Set the byte offset, referring to the BufferViewModel
void	setByteStride(int byteStride) Set the byte stride, indicating the number of bytes between the start of one element and the start of the next element.
void	setNormalized(boolean normalized) Set whether the underlying data is normalized

Methods inherited from class de.javagl.jgltf.model.impl.AbstractNamedModelElement

getName, setName

Methods inherited from class de.javagl.jgltf.model.impl.AbstractModelElement

addExtension, getExtensions, getExtras, removeExtension, setExtensions, setExtras

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.javagl.jgltf.model.NamedModelElement

getName

Methods inherited from interface de.javagl.jgltf.model.ModelElement

getExtensions, getExtras

Constructor Detail

DefaultAccessorModel

public DefaultAccessorModel(int componentType,
                            int count,
                            ElementType elementType)

Creates a new instance

Parameters:

componentType - The component type GL constant

count - The number of elements

elementType - The element type

Method Detail

setBufferViewModel

public void setBufferViewModel(BufferViewModel bufferViewModel)

Set the BufferViewModel for this model

Parameters:

bufferViewModel - The BufferViewModel

setByteOffset

public void setByteOffset(int byteOffset)

Set the byte offset, referring to the BufferViewModel

Parameters:

byteOffset - The byte offset

setByteStride

public void setByteStride(int byteStride)

Set the byte stride, indicating the number of bytes between the start of one element and the start of the next element.

Parameters:

byteStride - The byte stride

getBufferViewModel

public BufferViewModel getBufferViewModel()

Description copied from interface: AccessorModel

Returns the BufferViewModel for the data that this accessor provides access to. Typed access to the data is possible by obtaining the AccessorData using AccessorModel.getAccessorData().

Specified by:

getBufferViewModel in interface AccessorModel

Returns:

The BufferViewModel

getComponentType

public int getComponentType()

Description copied from interface: AccessorModel

Returns the component type of this accessor, as a GL constant. For example, GL_FLOAT or GL_UNSIGNED_SHORT

Specified by:

getComponentType in interface AccessorModel

Returns:

The component type

getComponentDataType

public java.lang.Class<?> getComponentDataType()

Description copied from interface: AccessorModel

Returns the data type of the components of this accessor. For example, float.class or short.class.

Specified by:

getComponentDataType in interface AccessorModel

Returns:

The component data type

isNormalized

public boolean isNormalized()

Description copied from interface: AccessorModel

Returns whether this accessor contains normalized data

Specified by:

isNormalized in interface AccessorModel

Returns:

Whether this accessor contains normalized data

setNormalized

public void setNormalized(boolean normalized)

Set whether the underlying data is normalized

Parameters:

normalized - Whether the underlying data is normalized

getComponentSizeInBytes

public int getComponentSizeInBytes()

Description copied from interface: AccessorModel

Returns the size of one component, in bytes

Specified by:

getComponentSizeInBytes in interface AccessorModel

Returns:

The component size, in bytes

getElementSizeInBytes

public int getElementSizeInBytes()

Description copied from interface: AccessorModel

Returns the size of one element, in bytes. This does not include any padding that may have to be inserted after the columns of certain matrix types (see section 3.6.2.4. "Data Alignment"). To obtain the padded size of the elements, AccessorModel.getPaddedElementSizeInBytes() can be used.

Specified by:

getElementSizeInBytes in interface AccessorModel

Returns:

The element size, in bytes

getPaddedElementSizeInBytes

public int getPaddedElementSizeInBytes()

Description copied from interface: AccessorModel

Obtain the padded size of one element, in bytes. This does include any padding that may have to be inserted after the columns of certain matrix types (see section 3.6.2.4. "Data Alignment"). For example, for a MAT2 with BYTE components, this will return 8, which is equivalent to calling

 ElementType elementType = accessorModel.getElementType();
 int componentType = accessorModel.getComponentType(); 
 int sizeWithPadding = elementType.getByteStride(componentType);
 

See ElementType.getByteStride(int).

Specified by:

getPaddedElementSizeInBytes in interface AccessorModel

Returns:

The padded element size, in bytes

getByteOffset

public int getByteOffset()

Description copied from interface: AccessorModel

Returns the byte offset of this accessor referring to its BufferViewModel

Specified by:

getByteOffset in interface AccessorModel

Returns:

The byte offset

getCount

public int getCount()

Description copied from interface: AccessorModel

Returns the number of elements that this accessor provides access to

Specified by:

getCount in interface AccessorModel

Returns:

The number of elements

getElementType

public ElementType getElementType()

Description copied from interface: AccessorModel

Returns the ElementType that this accessor provides access to

Specified by:

getElementType in interface AccessorModel

Returns:

The ElementType

getByteStride

public int getByteStride()

Description copied from interface: AccessorModel

Returns the byte stride between the starts of two consecutive elements of this accessor. If this is 0, then the elements are tightly packed. This means that the byte stride is equal to the element size. Note that for glTF 2.0, the byte stride for vertex attributes must be a multiple 4. Callers must check whether the returned value is 0 or not a multiple of 4 accordingly.

Specified by:

getByteStride in interface AccessorModel

Returns:

The byte stride

setAccessorData

public void setAccessorData(AccessorData accessorData)

Set the AccessorData for this accessor

Parameters:

accessorData - The AccessorData

getAccessorData

public AccessorData getAccessorData()

Description copied from interface: AccessorModel

Returns the AccessorData for this accessor. The exact type of the returned AccessorData object will depend on the component data type. It will be AccessorByteData, AccessorShortData, AccessorIntData or AccessorFloatData for a component data type of byte.class, short.class, int.class or float.class, respectively, and can be safely cast to the respective type.

Specified by:

getAccessorData in interface AccessorModel

Returns:

The AccessorData

getMin

public java.lang.Number[] getMin()

Description copied from interface: AccessorModel

Returns the minimum components of the AccessorData. The returned array will be a clone of the array that is stored internally, and have a length that matches the number of components per element.

Specified by:

getMin in interface AccessorModel

Returns:

The minimum components

getMax

public java.lang.Number[] getMax()

Description copied from interface: AccessorModel

Returns the maximum components of the AccessorData. The returned array will be a clone of the array that is stored internally, and have a length that matches the number of components per element.

Specified by:

getMax in interface AccessorModel

Returns:

The maximum components