DREAM.3D v6 User Manual
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IO (Input)
This Filter will read a single .ctf file into a new Data Container with a corresponding 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. 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.
If the data has come from a HKL acquisition system and the settings of the acquisition software were in the default modes, then the following reference frame transformations need to be performed:
The user also may want to assign un-indexed pixels to be ignored by flagging them as "bad". The Threshold Objects Filter can be used to define this mask by thresholding on values such as Error = 0.
2D .ctf files have their angles in degrees. Please be sure to convert the Euler angles from degrees to radians before running any other Filter.
Name | Type | Description |
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Input File | File Path | The input .ctf file path |
Not Applicable
None
Kind | Default Name | Type | Component Dimensions | Description |
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Data Container | ImageDataContainer | N/A | N/A | Created Data Container name with an Image Geometry |
Attribute Matrix | CellData | Cell | N/A | Created Cell Attribute Matrix name |
Attribute Matrix | CellEnsembleData | Cell Ensemble | N/A | Created Cell Ensemble Attribute Matrix name |
Cell Attribute Array | BC | float | (1) | Band contrast levels |
Cell Attribute Array | EulerAngles | float | (3) | Three angles defining the orientation of the Cell in Bunge convention (Z-X-Z) |
Cell Attribute Array | BS | float | (1) | Band saturation levels |
Cell Attribute Array | Bands | float | (1) | Number of bands |
Cell Attribute Array | Phases | int32_t | (1) | Specifies to which phase each Cell belongs |
Cell Attribute Array | MAD | float | (1) | Mean angular deviation. Typical threshold value is < 1.8 |
Cell Attribute Array | X Position | float | (1) | X coordinate of Cell |
Cell Attribute Array | Y Position | float | (1) | Y coordinate of Cell |
Cell Attribute Array | Error | int32_t | (1) | Value = 0 is a well indexed scan point |
Ensemble Attribute Array | CrystalStructures | uint32_t | (1) | Enumeration representing the crystal structure for each Ensemble |
Ensemble Attribute Array | LatticeConstants | float | (6) | The 6 values that define the lattice constants for each Ensemble |
Ensemble Attribute Array | MaterialName | String | (1) | Name of each Ensemble |
Please see the description file distributed with this Plugin
If you need more help with a Filter, please consider asking your question on the DREAM.3D Users Google group!