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

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| align="left" | SIZE_VERTICES
 
| align="left" | SIZE_VERTICES
 
| align="left" | uint32
 
| align="left" | uint32
| align="left" | Number of vertices
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| align="left" | Total size of vertices data
 
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| align="left" | NLINES
 
| align="left" | NLINES
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| align="left" | SIZE_LINES
 
| align="left" | SIZE_LINES
 
| align="left" | uint32
 
| align="left" | uint32
| align="left" | Number of lines
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| align="left" | Total size of line data
 
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| align="left" | NPOLYGONS
 
| align="left" | NPOLYGONS
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| align="left" | SIZE_POLYGONS
 
| align="left" | SIZE_POLYGONS
 
| align="left" | uint32
 
| align="left" | uint32
| align="left" | Number of polygons
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| align="left" | Total size of polygon data
 
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| align="left" | NTRIANGLE_STRIPS
 
| align="left" | NTRIANGLE_STRIPS
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| align="left" | SIZE_TRIANGLE_STRIPS
 
| align="left" | SIZE_TRIANGLE_STRIPS
 
| align="left" | uint32
 
| align="left" | uint32
| align="left" | Number of triangle strips
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| align="left" | Total size of triangle strips data
 
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| align="left" | NATTRIBUTES
 
| align="left" | NATTRIBUTES

Revision as of 01:44, 3 August 2011

Home < OpenIGTLink < ProtocolV2 < Type < PolyData

<< Version 2 Draft Page

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 Total size of vertices data
NLINES uint32 Number of lines
SIZE_LINES uint32 Total size of line data
NPOLYGONS uint32 Number of polygons
SIZE_POLYGONS uint32 Total size of polygon data
NTRIANGLE_STRIPS uint32 Number of triangle strips
SIZE_TRIANGLE_STRIPS uint32 Total size of triangle strips data
NATTRIBUTES uint32 Number of dataset attributes
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, ....))
NAME_ATTRIBUTE0 char * NAMESIZE_ATTRIBUTE0 Name of attribute 0
NAME_ATTRIBUTE1 char * NAMESIZE_ATTRIBUTE1 Name of attribute 1
... ... ...
NAME_ATTRIBUTE(NATTRIBUTES-1) char * NAMESIZE_ATTRIBUTE(NATTRIBUTES-1) Name of attribute (NATTRIBUTES-1)
(Padding) char or 0 Padding (inserted if NAMESIZE_ATTRIBUTE0+NAMESIZE_ATTRIBUTE1+...NAMESIZE_ATTRIBUTE(NATTRIBUTES-1) % 2 == 1)
TYPE_ATTRIBUTE0 uint16 Type of dataset attribute 0 (including number of components for scalar type)
NAMESIZE_ATTRIBUTE0 uint16 Length of name for attribute 0
SIZE_ATTRIBUTE1 uint32 Number of data for attribute 0
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_ATTRIBUTE(NATTRIBUTES-1) uint16 Type of dataset attribute 1 (including number of components for scalar type)
NAMESIZE_ATTRIBUTE(NATTRIBUTES-1) uint16 Length of name for attribute 2
SIZE_ATTRIBUTE(NATTRIBUTES-1) uint32 Number of data for attribute2
ATTRIBUTE0 SIZE_ATTRIBUTE0 * (number of components) * (data size) Actual attribute data
ATTRIBUTE1 SIZE_ATTRIBUTE0 * (number of components) * (data size) Actual attribute data
... ... ...
ATTRIBUTE(NATTRIBUTES-1) SIZE_ATTRIBUTE(NATTRIBUTES-1) * (number of components) * (data size) Actual attribute data

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