Nodes & Triangles To Vtk File

Group (Subgroup)

IO (Output)

Description

This Filter will convert a pair of triangle and nodes files into a VTK PolyData file in either ASCII or binary format. Note if the file is in binary that the binary portions are written in big endian format as specified by the VTK file format. The input file formats were originally defined by Prof. Greg Rohrer (CMU), and are commonly used in studying Grain Boundary Character Distribution (GBCD).

The nodes file format is as follows:

+  first line = number of nodes
+  column 1 = node id, starts from zero.
+  column 2 = node type,
  + 2 = on the **Feature** boundary
  + 3 = on the triple line,
  + 4 = quadruple point or on quadruple line if 10 is added, eg 12, 13, and 14, then they are on the surface of microstructure.

For the nodes on surfaces of microstructure, negative wrapper spins are treated as neighboring Features.

+ 12 = on the **Feature** boundary trace area at the surface of microstructure
+ 13 = on the **Feature** boundary trace line
+ 14 = on the triple point, and so on
  - column 3 to 5 = coordinates of nodes, x, y, and z

The triangles file format is as follows:

-  first line = number of triangles
-  column 1 = triangle id, starts from zero
-  column 2 to 4 = node1, node2 and node3 of individual triangles
-  column 5 to 7 = edge1 (from node1 and node2), edge2 (from node2 and node3) and edge3 (from node3 and node1) of individual triangle
-  column 8 and 9 = neighboring spins of individual triangles, column 8 = spins on the left side when following winding order using right hand.

If the user selects to disable the Conformal Mesh option then 2 triangles will be written to the file and the scalar data will have 2 entries for the each FeatureId, one for each Feature that the triangle borders.

Example Output

The vtk ASCII output file:

# vtk DataFile Version 2.0
Data set from DREAM.3D Surface Meshing Module
ASCII
DATASET POLYDATA
POINTS 346727 float
-36.750000 10.250000 -29.000000
-36.750000 10.500000 -29.000000
-36.750000 10.250000 -28.750000
-36.750000 10.500000 -28.750000
-36.500000 10.250000 -29.000000
-36.500000 10.250000 -28.750000
-36.500000 10.500000 -29.000000
-36.250000 10.250000 -29.000000
-36.250000 10.250000 -28.750000
-36.250000 10.500000 -29.000000
-36.000000 10.250000 -29.000000
-36.000000 10.250000 -28.750000
-36.000000 10.500000 -29.000000
-35.750000 10.250000 -29.000000
…..

Parameters

Name Type Description
Nodes File File Path The input nodes file path
Triangles File File Path The input triangles file path
Output VTK File File Path The output VTK PolyData file path
Binary VTK File Boolean Whether to write the VTK file using binary instead of ASCII
Conformal Mesh Boolean Whether to write a conformal mesh

Required Geometry

Not Applicable

Required Objects

None

Created Objects

None

Example Pipelines

Please see the description file distributed with this Plugin

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