pynetdicom.pdu_items.MaximumLengthSubItem

class pynetdicom.pdu_items.MaximumLengthSubItem[source]

A Maximum Length Sub-item.

The Maximum Length Sub-item allows the receivers to limit the size of the Presentation Data Values List parameters of each P-DATA PDU.

Notes

A Maximum Length Sub-item requires the following parameters:

  • Item type (1, fixed, 0x51)

  • Item length (1)

  • Maximum length received (1)

Encoding

When encoded, a Maximum Length Sub-item has the following structure, taken from Table D.1-1 of the DICOM Standard (offsets shown with Python indexing). Items are always encoded using Big Endian.

Offset

Length

Description

0

1

Item type

1

1

Reserved

2

2

Item length

4

4

Maximum length received

References

__init__() None[source]

Initialise a new Maximum Length Item.

Methods

__init__()

Initialise a new Maximum Length Item.

decode(bytestream)

Decode bytestream and use the result to set the field values of the PDU item.

encode()

Return the encoded PDU as bytes.

from_primitive(primitive)

Set the item's values using a Maximum Length primitive.

to_primitive()

Return a Maximum Length primitive from the current Item.

Attributes

item_length

Return the item's Item Length field value as int.

item_type

Return the item's Item Type field value as int.

from_primitive(primitive: MaximumLengthNotification) None[source]

Set the item’s values using a Maximum Length primitive.

Parameters:

primitive (pdu_primitives.MaximumLengthNotification) – The primitive to use to set the Item’s field values.

property item_length: int

Return the item’s Item Length field value as int.

to_primitive() MaximumLengthNotification[source]

Return a Maximum Length primitive from the current Item.

Returns:

The primitive representation of the current Item.

Return type:

pdu_primitives.MaximumLengthNotification