```{index} single: Filters; Write GBCD Triangles File
```
# Write GBCD Triangles File

## Group (Subgroup)

IO (Output)

## Description

This **Filter** writes relevant information about the Grain Boundary Character Distribution (GBCD) on an existing set of triangles.  The information written includes the inward and outward Euler angles, normals, and areas for each triangle.  The file format was originally defined by Prof. Greg Rohrer (CMU).

## Example Output

    # Triangles Produced from DREAM3D version 5.2
    # Column 1-3:    right hand average orientation (phi1, PHI, phi2 in RADIANS)
    # Column 4-6:    left hand average orientation (phi1, PHI, phi2 in RADIANS)
    # Column 7-9:    triangle normal
    # Column 8:      surface area
    0.2662 0.6970 4.4347 0.7993 0.6738 3.5200 0.0000 0.8829 -0.4696 0.0240
    0.2662 0.6970 4.4347 0.7993 0.6738 3.5200 0.4532 0.3203 -0.8319 0.0211
    0.2662 0.6970 4.4347 0.7993 0.6738 3.5200 1.0000 0.0000 0.0000 0.0312
    0.2662 0.6970 4.4347 0.7993 0.6738 3.5200 0.9939 0.0780 0.0780 0.0315
    0.2662 0.6970 4.4347 0.7993 0.6738 3.5200 0.0000 0.9985 0.0551 0.0332
    0.2662 0.6970 4.4347 0.7993 0.6738 3.5200 0.5074 0.7638 -0.3989 0.0260
    0.7993 0.6738 3.5200 0.2662 0.6970 4.4347 0.0000 -0.7792 0.6268 0.0182
    0.7993 0.6738 3.5200 0.2662 0.6970 4.4347 -0.5737 -0.0995 0.8130 0.0221
    3.4109 0.6178 1.0586 0.2662 0.6970 4.4347 1.0000 0.0000 0.0000 0.0312
    3.4109 0.6178 1.0586 0.2662 0.6970 4.4347 0.9822 0.1328 0.1328 0.0256
       ..


### Input Parameter(s)

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Output File | FileSystemPath |  | The output GBCD triangle file path |

### Input Triangle Face Data

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Face Labels | Array Selection | Allowed Types: int32 Comp. Shape: 2 | Specifies which Features are on either side of each Face |
| Face Normals | Array Selection | Allowed Types: float64 Comp. Shape: 3 | Specifies the normal of each Face |
| Face Areas | Array Selection | Allowed Types: float64 Comp. Shape: 1 | Specifies the area of each Face |

### Input Feature Data

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Average Euler Angles | Array Selection | Allowed Types: float32 Comp. Shape: 3 | Three angles defining the orientation of the Feature in Bunge convention (Z-X-Z). |

## Example Pipelines

## License & Copyright

Please see the description file distributed with this **Plugin**

## DREAM3D-NX Help

If you need help, need to file a bug report or want to request a new feature, please head over to the [DREAM3DNX-Issues](https://github.com/BlueQuartzSoftware/DREAM3DNX-Issues/discussions) GitHub site where the community of DREAM3D-NX users can help answer your questions.