Table of Contents

Class TiffDataType

Namespace
Aspose.Imaging.FileFormats.Tiff
Assembly
Aspose.Imaging.dll

The TIFF data type.

public abstract class TiffDataType : IComparable
Inheritance
TiffDataType
Implements
Derived
Inherited Members

Constructors

TiffDataType(ushort)

Initializes a new instance of the TiffDataType class.

protected TiffDataType(ushort tagId)

Parameters

tagId ushort

The tag id.

Properties

Count

Gets the count of elements.

public abstract ulong Count { get; }

Property Value

ulong

The count of elements.

DataSize

Gets the tag value size.

public virtual ulong DataSize { get; }

Property Value

ulong

ElementSize

Gets the element size in bytes.

public virtual byte ElementSize { get; }

Property Value

byte

Id

Gets tag id as number.

public ushort Id { get; }

Property Value

ushort

IsValid

Gets a value indicating whether tag data is valid. The valid tag contains data which may be preserved. The invalid tag cannot be stored.

public bool IsValid { get; }

Property Value

bool

true if tag data is valid; otherwise, false.

TagId

Gets the tag id.

public TiffTags TagId { get; }

Property Value

TiffTags

The tag id.

TagType

Gets the tag type.

public abstract TiffDataTypes TagType { get; }

Property Value

TiffDataTypes

The tag type.

Value

Gets or sets the value this data type contains.

public abstract object Value { get; set; }

Property Value

object

The value.

Methods

CompareTo(object)

Compares the current instance with another object of the same type and returns an integer that indicates whether the current instance precedes, follows, or occurs in the same position in the sort order as the other object.

public int CompareTo(object obj)

Parameters

obj object

An object to compare with this instance.

Returns

int

A 32-bit signed integer that indicates the relative order of the objects being compared. The return value has these meanings: Value Meaning Less than zero This instance is less than obj. Zero This instance is equal to obj. Greater than zero This instance is greater than obj.

Exceptions

TiffImageException

Expected TiffDataType type.

CopyInstanceData(TiffDataType)

Copies the instance data into the cloned type.

protected virtual void CopyInstanceData(TiffDataType clonedType)

Parameters

clonedType TiffDataType

The cloned type.

CreateInstance()

Creates a new instance.

protected abstract TiffDataType CreateInstance()

Returns

TiffDataType

A new TiffDataType instance.

DeepClone()

Performs a deep clone of this instance.

public virtual TiffDataType DeepClone()

Returns

TiffDataType

A deep clone of the current instance.

GetAdditionalDataSize(byte)

Gets the additional tag value size in bytes (in case the tag can not fit the whole tag value).

public virtual ulong GetAdditionalDataSize(byte sizeOfTagValue)

Parameters

sizeOfTagValue byte

Size of tag value: 4 or 8 for BigTiff.

Returns

ulong

The additional data size in bytes.

GetAlignedDataSize(byte)

Gets the data size aligned in 4-byte (int) or 8-byte (long) boundary.

public ulong GetAlignedDataSize(byte sizeOfTagValue)

Parameters

sizeOfTagValue byte

Size of tag value.

Returns

ulong

The aligned data size in bytes.

ReadData(TiffStreamReader, long, long)

Reads the additional data.

protected abstract void ReadData(TiffStreamReader dataStream, long position, long count)

Parameters

dataStream TiffStreamReader

The data stream.

position long

The position to read from.

count long

The count of elements.

ReadTag(TiffStreamReader, long)

Reads the tag data.

public static TiffDataType ReadTag(TiffStreamReader dataStream, long position)

Parameters

dataStream TiffStreamReader

The data stream.

position long

The tag position.

Returns

TiffDataType

The read tag.

Exceptions

ArgumentNullException

dataStream

ToString()

Returns a string that represents this instance.

public override string ToString()

Returns

string

A string that represents this instance.

WriteAdditionalData(TiffStreamWriter)

Writes the additional tag data.

public abstract long WriteAdditionalData(TiffStreamWriter dataStream)

Parameters

dataStream TiffStreamWriter

The data stream.

Returns

long

The actual bytes written.

WriteTag(TiffStreamWriter, long)

Writes the tag data.

public void WriteTag(TiffStreamWriter dataStream, long additionalDataOffset)

Parameters

dataStream TiffStreamWriter

The data stream.

additionalDataOffset long

The offset to write additional data to.

Exceptions

ImageSaveException

Unable to Write values for + this.TagType + Message : + exception.Message

WriteTagValueOrOffset(TiffStreamWriter, long)

Writes the tag value or additional offset.

protected abstract void WriteTagValueOrOffset(TiffStreamWriter dataStream, long additionalDataOffset)

Parameters

dataStream TiffStreamWriter

The data stream.

additionalDataOffset long

The additional data offset.