27 lines
981 B
Markdown
27 lines
981 B
Markdown
# Cursors
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Place two draggable cursors on a line plot or 2D field to measure positions and deltas. On lines it reports x/y positions and dx/dy; on fields it reports x/y/z at both markers plus dx/dy/dz.
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## Inputs
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| Name | Type | Required | Description |
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|------|------|----------|-------------|
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| line | LINE or DATA_FIELD | Yes | Input line profile or 2D field |
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| coord_pair | COORDPAIR | No | Locks both cursor positions from an external coordinate pair |
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## Outputs
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| Name | Type | Description |
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|------|------|-------------|
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| measurement | RECORD_TABLE | Positions, deltas, and lengths at the two cursor locations |
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| coord_pair | COORDPAIR | Current cursor positions (passthrough for chaining) |
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## Controls
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None (cursor positions are set by dragging in the preview panel).
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## Limitations
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- When a COORDPAIR is connected, the cursor positions are locked and cannot be dragged interactively.
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- On 2D fields, z values are sampled with bilinear (order 1) interpolation.
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