CURVES GET CYCLIC DATA¶
Extracts cyclic (loading/unloading) segment data from one or more input curves, optionally filtering by a specific cycle number and data direction. Use this worker to isolate individual or all loading, unloading, or combined cycles from hysteresis-type curves, with optional axis scaling and negative-x suppression before extraction.
When to use¶
Classification: process.
Tagged: cycle extraction, cyclic, fatigue, hysteresis, loading, material testing, unloading.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Curve In | curves_in | vector | — | One or more input curves (vector) from which cyclic data will be extracted; typically force-displacement or stress-strain hysteresis curves. | |
| Scale X | scale_x | scalar | 1 | Multiplicative scale factor applied to the x-axis values before cycle extraction; default is 1.0 (no scaling). Use to convert units (e.g., ms → s). | |
| Scale Y | scale_y | scalar | 1 | Multiplicative scale factor applied to the y-axis values before cycle extraction; default is 1.0 (no scaling). Use to convert units (e.g., N → kN). | |
| Skip Negative | ignore_negative_x | scalar | yes | When set to ‘yes’ (default), x-axis data points with negative values are skipped after scaling before cycle detection; set to ‘no’ to retain all x values. | |
| CN-WBAC | cyclenumber | scalar | -1 | Integer index of the specific cycle to extract; set to -1 (default) to extract all detected cycles from the curve. | |
| Type Of Data To Extract | type_of_data_to_extract | scalar | loading_unloading | Selects which portion of each cycle to return: ‘loading_unloading’ (default, full cycle), ‘loading’ (ascending segment only), or ‘unloading’ (descending segment only). |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curves_get_cyclic_data_output_1 | curves_get_cyclic_data_output_1 | vector | Collection of extracted cyclic curve segments (vector), one entry per detected cycle (or the selected cycle), each containing only the requested loading/unloading portion after axis scaling. |
Disciplines¶
- data.curve.pair
- data.curve.transform
- engineering.durability
- engineering.material.characterization
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curves_get_cyclic_data
Auto-generated from transformation schema. Worker id: curves_get_cyclic_data. Schema hash: 23459841be43. Hand-curated docs in workerexamples/ override this page when present.