31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
# Radial Profile
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Compute an **azimuthally averaged** profile around a centre point on a DATA_FIELD. At each radius, every pixel in the full 360° ring around the centre is averaged together, so the profile is direction-independent — there is no clockwise/counter-clockwise traversal and no start or end point along the ring. The output is a single 1-D profile: value vs. radius.
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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 field |
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## Outputs
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| Name | Type | Description |
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|------|------|-------------|
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| profile | LINE | Radially averaged profile vs. radius |
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## Controls
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| Name | Type | Default | Description |
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|------|------|---------|-------------|
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| n_bins | INT | 128 | Number of radial bins (4-4096) |
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## Interactive preview
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The dashed circle around the centre shows the outer radius used by the profile. Pixels beyond it are not included in the averaging.
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## Notes
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- Pixels are assigned to radial bins by Euclidean distance from the centre; inner bins contain fewer pixels and may be noisier.
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- Physical x-axis units come from the field's si_unit_xy; uncalibrated fields produce pixel-unit radii.
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