OpenIGTLink/ProtocolV2/Type/Point

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Summary

The POINT message type is designed to transfer information about fiducials, which are often used in surgical planning and navigation in the image-guided therapy.

Message Types

POINT

Data	Type	Description
SENSOR_1
Name	char[64]	Name or description of the point
Group name	char[32]	Can be "Labeled Point", "Landmark", "Fiducal", ...
R,G,B,A	8 bit unsigned	Color in RGBA
X,Y,Z	32 bit float	Coordinate of the point in millimeter
Diameter	32 bit float	Diameter of the point in millimeter. Diameter can be 0.
Owner image	char[20]	Id of the owner image/sliceset. Points from different slicesets can be sent if slicesets are fused.
...
SENSOR_N
Name	char[64]	Name or description of the point
Group name	char[32]	Can be "Labeled Point", "Landmark", "Fiducal", ...
R,G,B,A	8 bit unsigned	Color in RGBA
X,Y,Z	32 bit float	Coordinate of the point in millimeter.
Diameter	32 bit float	Diameter of the point in millimeter. Diameter can be 0.
Owner image	char[20]	Id of the owner image/sliceset. Points from different slicesets can be sent if slicesets are fused.

GET_POINT

GET_POINT is used to query for meta data of label data. If the DEVICE_NAME field in the header is empty, a list of all available point data is returned.

Data

Type

Description

STT_POINT

N / A

STP_POINT

N/A

RTS_POINT

N/A

Implementations

IMGMETA message type is implemented in the following source code.

• igtlPointMessage.h
• igtlPointMessage.cxx

Contributors

Alexander Schaal