Difference between revisions of "OpenIGTLink/ProtocolV2/Type/Transform"

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Revision as of 03:32, 30 June 2010

Home < OpenIGTLink < ProtocolV2 < Type < Transform

<< Version 2 Draft Page

Summary

The TRANSFORM data type is used to transfer a homogeneous linear transformation in 4-by-4 matrix form. One such matrix was shown earlier in equation (1). Note that if a device is sending only translation and rotation, then TRANSFORM is equivalent to POSITION. But TRANSFORM can also be used to transfer affine transformations or simple scaling. Like IMAGE and POSITION, TRANSFORM carries information about the coordinate system used.

Message Types

TRANSFORM

Data Type Description
R11 32-bit float Element (1, 1) in 4-by-4 linear transformation matrix
R21 32-bit float Element (2, 1) in 4-by-4 linear transformation matrix
R31 32-bit float Element (3, 1) in 4-by-4 linear transformation matrix
R12 32-bit float Element (1, 2) in 4-by-4 linear transformation matrix
R22 32-bit float Element (2, 2) in 4-by-4 linear transformation matrix
R32 32-bit float Element (3, 2) in 4-by-4 linear transformation matrix
R13 32-bit float Element (1, 3) in 4-by-4 linear transformation matrix
R23 32-bit float Element (2, 3) in 4-by-4 linear transformation matrix
R33 32-bit float Element (3, 3) in 4-by-4 linear transformation matrix
TX 32-bit float Element (1, 4) in 4-by-4 linear transformation matrix (translation along x-axis)
TY 32-bit float Element (2, 4) in 4-by-4 linear transformation matrix (translation along y-axis)
TZ 32-bit float Element (3, 4) in 4-by-4 linear transformation matrix (translation along z-axis)

GET_TRANSFORM

Data Type Description

STT_TRANSFORM

Data Type Description

STP_TRANSFORM

Data Type Description

Implementations

IMAGE type is implemented in the following files: