Plot Settings and Chart Export
Saved plot settings, temporary navigation, crosshair values, and CSV/SVG/PNG export.
Charts
| Chart | x-axis | y-axis |
|---|---|---|
| Principal Stress Plot | Minor principal stress sigma3 | Major principal stress sigma1 |
| Normal/Shear Stress | Normal stress sigma_n | Shear strength tau |
Each chart has an independent temporary viewport. Use the wheel around the pointer or the plus/minus controls to zoom, and drag to pan both axes. Arrow keys pan a focused chart, plus/minus zoom, and 0 or a double-click resets to saved settings. Temporary navigation is neither autosaved nor included in Undo/Redo and resets when saved settings or plotted engineering data change.
Hover or focus to show x/y coordinates and interpolated values for all visible series. On touch devices, tap to lock the crosshair and use Unlock or Escape to clear it.
Plot Settings
| Control | Description |
|---|---|
| Automatic envelope range | Scoped to the active material. Its numeric bounds are derived synchronously from current material inputs and are not saved in automatic mode. |
| Plot stress Min / Max | Manual envelope range for the active material. The bounds are saved only in manual mode. |
| Automatic axes | Project-global. Derives full extents and tick intervals for both charts from the plotted series; derived bounds and tick intervals are not saved. |
| Axis Settings | Project-global manual x/y min, max, and tick spacing for principal and normal/shear charts. |
| Decimal Places | Controls axis label decimal places from 0 to 6. |
| Revert plot settings to default (reset icon beside Axis Labels) | Restores automatic envelope range for the active material, automatic global axes, and zero decimal places. |
Envelope range and axes are independent: a material can use a manual envelope range with automatic global axes, or the reverse. Temporary chart viewports remain separate from both saved settings.
Chart Export
Each chart title includes an export menu. CSV contains finite sampled rows in the active unit. SVG and 2x PNG use the current temporary viewport and include title, axes, legend, and series while omitting controls and the transient crosshair.
| Column | Description |
|---|---|
| plot | principal_stress or normal_shear_stress. |
| series | Material name, Equivalent MC, or Instantaneous MC. |
| point_index | Zero-based index within each series. |
| x_unit | x value in the active stress unit. |
| y_unit | y value in the active stress unit. |
The dotted gridlines belong to each chart; the surrounding panel has no background grid. Export, zoom, and reset controls share the same compact button size. See exports and reports for printable outputs.