29 lines
1.1 KiB
Markdown
29 lines
1.1 KiB
Markdown
# Facet Level
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Level a field by iteratively finding the dominant local facet orientation and subtracting the corresponding plane. Matches Gwyddion's facet-level behaviour. Supports mask include/exclude selection.
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## Inputs
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| Name | Type | Required | Description |
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|------|------|----------|-------------|
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| field | DATA_FIELD | Yes | Input topographic field |
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| mask | IMAGE | No | Binary mask for including or excluding facets from plane fitting |
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## Outputs
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| Name | Type | Description |
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|------|------|-------------|
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| leveled | DATA_FIELD | Field with dominant facet plane subtracted |
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## Controls
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| Name | Type | Default | Description |
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|------|------|---------|-------------|
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| masking | dropdown | exclude | How to use the mask: exclude (ignore masked facets), include (use only masked facets), or ignore (use all facets) |
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## Notes
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- Requires compatible XY and Z physical units for correct facet gradient estimation.
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- Needs at least four valid facet cells; fields smaller than 2×2 pixels are not processed.
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- Flat surfaces with no variation in facet orientation may not converge to a meaningful plane.
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