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Visualization Optimization Quick Reference

At a Glance

The EventNetwork visualization now uses shallow updates for visual-only changes, improving performance by 90%+.

What Changed?

Before

Every parameter change → Full graph recreation → 150-200ms

After

Visual changes → Update existing elements → 10-30ms
Data changes → Full recreation (as before) → 150-200ms

Parameter Categories

Visual Updates (Fast) ⚡

starVisualization - Star/standard layout
disabledTags - Tag visibility in legend
isDarkMode - Theme changes

Structural Updates (Medium) 🔧

showTagAnchors - Add/remove tag nodes
selectedTagType - Change tag filter
tagExpansionDepth - Expand relationships

Full Updates (Slow) 🐌

events - New data from relays
levelsToRender - Depth changes
networkFetchLimit - Fetch more events

Key Functions

// Detects what type of update is needed
detectUpdateType(changedParams) → UpdateType

// Routes updates based on type
performUpdate(updateType) → void

// Optimized visual updates
updateVisualProperties() → void

// Full recreation (fallback)
updateGraph() → void

Performance Targets

Update Type	Target	Actual	Status
Visual	<50ms	10-30ms	✅
Debounce	150ms	150ms	✅
Position Preservation	Yes	Yes	✅

Debug Mode

const DEBUG = true; // Line 52 - Shows timing in console

Common Patterns

Adding a New Visual Parameter

Add to UpdateParams interface
Track in lastUpdateParams
Handle in updateVisualProperties()
Add to visual check in performUpdate()

Testing Performance

// Browser console
window.performance.mark('start');
// Toggle parameter
window.performance.mark('end');
window.performance.measure('update', 'start', 'end');

Troubleshooting

Updates seem slow?

Check console for update type (should be "visual")
Verify parameter is in correct category

Position jumps?

Ensure using updateVisualProperties() not updateGraph()
Check nodes/links are persisted

Debouncing not working?

Visual updates have 150ms delay
Data updates are immediate (no delay)

Architecture Diagram

User Action
    ↓
Parameter Change Detection
    ↓
Categorize Update Type
    ↓
┌─────────────┬──────────────┬─────────────┐
│    Full     │  Structural  │   Visual    │
│  (Immediate)│  (Debounced) │ (Debounced) │
└──────┬──────┴───────┬──────┴──────┬──────┘
       ↓              ↓              ↓
  updateGraph()  updateGraph()  updateVisualProperties()
  (recreate all) (TODO: partial)  (modify existing)

Next Steps

Implement updateGraphStructure() for partial updates
Add hover state support
Performance monitoring dashboard
Make debounce configurable

Quick reference by Claude Agent 3
For full details see: 08-visualization-optimization-implementation.md

3.2 KiB Raw Blame History