```{index} single: Filters; Read EDAX OIMAnalysis Data (.h5)
```
# Read EDAX OIMAnalysis Data (.h5)

## Group (Subgroup)

Import/Export (Import)

## Description

This **Filter** will read a single .h5 file into a new **Image Geometry**, allowing the immediate use of **Filters** on the data instead of having to generate the intermediate .h5ebsd file. A **Cell Attribute Matrix** and Ensemble Attribute Matrix** will also be created to hold the imported EBSD information. Currently, the user has no control over the names of the created **Attribute Arrays**.

![User interface before entering a proper "Z Spacing" value and selecting which scans to include.](Images/ReadEDAXH5_1.png)

![User interface AFTER setting the "Z Spacing" and selecting files.](Images/ReadEDAXH5_2.png)

## Notes About Reference Frames

The user should be aware that simply reading the file then performing operations that are dependent on the proper crystallographic and sample reference frame will be undefined or simply **wrong**. In order to bring the crystal reference frame and sample reference frame into coincidence, rotations will need to be applied to the data. The recommended filters are:

- {ref}`Rotate Euler Reference Frame <OrientationAnalysis/RotateEulerRefFrameFilter:Description>`
- {ref}`Rotate Sample Reference Frame <SimplnxCore/RotateSampleRefFrameFilter:Description>`

If the data has come from a TSL acquisition system and the settings of the acquisition software were in the default modes, the following reference frame transformations may need to be performed based on the version of the OIM Analysis software being used to collect the data:

- Crystal Reference Frame: 90<sup>o</sup> about the <001> Axis
- Sample Reference Frame: 180<sup>o</sup> about the <010> Axis

### Important Consideration for Sample Reference Frame

If the user is importing more than a single slice from the HDF5 file and using the "Rotate Sample Reference Frame" filter,
the user should **CHECK** the option **ON** for "Perform Slice By Slice Transform".

## Thresholding out Unindexed Scan Points

The user also may want to assign un-indexed pixels to be ignored by flagging them as "bad". The {ref}`Threshold Objects <SimplnxCore/MultiThresholdObjectsFilter:Description>` **Filter** can be used to define this *mask* by thresholding on values such as *Confidence Index* > xx or *Image Quality* > desired quality.


### Input Parameter(s)

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Scan Names | orientationanalysis.OEMEbsdScanSelection |  | The name of the scan in the .h5 file. EDAX can store multiple scans in a single file |
| Origin | Vector of Float32 Values | Order=x,y,z | The origin of the volume |
| Z Spacing (Microns) | Scalar Value |Float32 | The spacing in microns between each layer. |
| Import Pattern Data | Bool |  | Whether or not to import the pattern data |

### Output Image Geometry

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Image Geometry | DataGroupCreation |  | The path to the created Image Geometry |

### Output Cell Attribute Matrix

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Cell Attribute Matrix | DataObjectName |  | The name of the cell data attribute matrix for the created Image Geometry |

### Output Ensemble Attribute Matrix

| Parameter Name | Parameter Type | Parameter Notes | Description |
|----------------|----------------|-----------------|-------------|
| Ensemble Attribute Matrix | DataObjectName |  | The Attribute Matrix where the phase information is stored. |

## 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.