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

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=Summary=
 
=Summary=
POLYDATA is used to transfer 3D polygonal data. The message format is designed based on the [http://www.vtk.org/VTK/img/file-formats.pdf POLY DATA format defined in VTK file format] and equivalent to [http://noodle.med.yale.edu/vtk5/classvtkPolyData.html VTK's vtkPolyData class]. The message also supports dataset attribute field in VTK, including scalars, vectors, vectors, normals, texture coordinates and tensor, but not color table.
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POLYDATA is used to transfer 3D polygonal data. The message format is designed based on the [http://www.vtk.org/VTK/img/file-formats.pdf POLY DATA format defined in VTK file format] and equivalent to [http://noodle.med.yale.edu/vtk5/classvtkPolyData.html VTK's vtkPolyData class]. The message also supports dataset attribute field in VTK, including scalars, calar_scalars, vectors, vectors, normals, texture coordinates and tensor, but not lookup table.
  
 
=Message Types=
 
=Message Types=

Revision as of 21:19, 28 July 2011

Home < OpenIGTLink < ProtocolV2 < Type < PolyData

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Summary

POLYDATA is used to transfer 3D polygonal data. The message format is designed based on the POLY DATA format defined in VTK file format and equivalent to VTK's vtkPolyData class. The message also supports dataset attribute field in VTK, including scalars, calar_scalars, vectors, vectors, normals, texture coordinates and tensor, but not lookup table.

Message Types

POLYDATA

Data Type Description
NPOINTS uint32 Number of points
PTYPE uint8 Data type (see image)
(Reserved) uint8 --
NVERTICES uint32 Number of vertices
SIZE_VERTICES uint32 Number of vertices
NLINES uint32 Number of lines
SIZE_LINES uint32 Number of lines
NPOLYGONS uint32 Number of polygons
SIZE_POLYGONS uint32 Number of polygons
NTRIANGLE_STRIPS uint32 Number of triangle strips
SIZE_TRIANGLE_STRIPS uint32 Number of triangle strips
NATTRIBUTES uint32 Number of dataset attributes
TYPE_ATTRIBUTE1 uint16 Type of dataset attribute 1 (including number of components for scalar type)
NAMESIZE_ATTRIBUTE1 uint16 Length of name for attribute 1
SIZE_ATTRIBUTE1 uint32 Number of data for attribute1
TYPE_ATTRIBUTE2 uint16 Type of dataset attribute 1 (including number of components for scalar type)
NAMESIZE_ATTRIBUTE2 uint16 Length of name for attribute 2
SIZE_ATTRIBUTE2 uint32 Number of data for attribute2
... ... ...
TYPE_ATTRIBUTE(NATTRIBUTES) uint16 Type of dataset attribute 1 (including number of components for scalar type)
NAMESIZE_ATTRIBUTE(NATTRIBUTES) uint16 Length of name for attribute 2
SIZE_ATTRIBUTE(NATTRIBUTES) uint32 Number of data for attribute2
POINTS PTYPE * NPOINTS * 3 Coordinates of points (P0x, P0y, P0z, P1x, P1y, P1z, ... P(n-1)x, P(n-1)y, P(n-1)z
VERTICES uint32 * ((NPOINTS_0+1) + (NPOINTS_1+1) + (NPOINTS_(N-1)+1)) array of vertices ((NPOINTS_0, index_0_0, index_0_1, ....), (NPOINTS_1, index_1_0, index_1_1, ....), ..., (NPOINTS_(N-1), index_(N-1)_0, index_(N-1)_1, ....))
LINES uint32 * ((NPOINTS_0+1) + (NPOINTS_1+1) + (NPOINTS_(N-1)+1)) array of vertices ((NPOINTS_0, index_0_0, index_0_1, ....), (NPOINTS_1, index_1_0, index_1_1, ....), ..., (NPOINTS_(N-1), index_(N-1)_0, index_(N-1)_1, ....))
POLYGONS uint32 * ((NPOINTS_0+1) + (NPOINTS_1+1) + (NPOINTS_(N-1)+1)) array of vertices ((NPOINTS_0, index_0_0, index_0_1, ....), (NPOINTS_1, index_1_0, index_1_1, ....), ..., (NPOINTS_(N-1), index_(N-1)_0, index_(N-1)_1, ....))
TRIANGLE_STRIPS uint32 * ((NPOINTS_0+1) + (NPOINTS_1+1) + (NPOINTS_(N-1)+1)) array of vertices ((NPOINTS_0, index_0_0, index_0_1, ....), (NPOINTS_1, index_1_0, index_1_1, ....), ..., (NPOINTS_(N-1), index_(N-1)_0, index_(N-1)_1, ....))

2/17 change the order of the field to make implementation easier

GET_POLYDATA

Data Type Description


STT_POLYDATA

Data Type Description
or
Data Type Description
RESOL uint64 Minimum interval between message (ns). Same format as TimeStamp

STP_POLYDATA

Data Type Description

RTS_POLYDATA

Data Type Description
Status 8 bit unsigned 0: Success 1: Error

Implementations

The NDARRAY message type is implemented in the following source code.

Contributors

Junichi Tokuda

Comments