Legacy diagrams are pre-built diagram widgets that provide standardized visualization for common engineering calculations. These diagrams are implemented as diagram widgets with specific types and use equation interfaces to pass parameters.

​
Available Legacy Diagram Types

Cross-Section Diagram

Plot arbitrary cross-sections with section data like centroid and mesh

Free-Body Diagram

Display factored loads and reactions for specific load combinations

Load & Support Diagram

Show unfactored load types and supports on structural members

Reactions Diagram

Visualize all reactions for each support in a structural member

XY Plot

Create live XY line plots for engineering data visualization

​
Common Implementation Pattern

All legacy diagrams follow a consistent implementation pattern: 
{
    "type": "sheetTemplateWidgets",
    "attributes": {
        "type": "diagram",
        "diagram": [
            {
                "type": "DIAGRAM_TYPE"
            }
        ],
        "equation": [
            {
                "result": "{PARAMETERS}",
                "condition": "CONDITIONS"
            }
        ],
        "referenceId": "diagram_id"
    }
}

​
Key Features

​
Standardized Visualization

  • Consistent styling and formatting across all ClearCalcs templates
  • Pre-configured for common engineering use cases
  • Automatic unit handling and display

​
Dynamic Data Binding

  • Real-time updates when calculation inputs change
  • Integration with remote solvers and calculation results
  • Conditional display based on template logic

​
Interactive Elements

  • Tooltips with detailed information
  • Clickable elements for navigation between related sheets
  • Zoom and pan capabilities where appropriate

​
Migration to New Diagrams

While legacy diagrams continue to be supported, new template development should consider using the newer Interactive Diagrams for enhanced functionality and better user experience.

​
Best Practices

  1. Data Validation: Always validate input data before passing to diagram widgets
  2. Unit Consistency: Ensure all units are properly converted and labeled
  3. Conditional Display: Use visibleIf conditions to show diagrams only when relevant
  4. Performance: Minimize complex calculations within diagram equations
  5. User Experience: Provide clear labels and tooltips for diagram elements
Legacy diagrams are battle-tested and reliable for standard engineering visualizations. They provide consistent behavior across the platform and are well-suited for most template requirements.