Fork of React flow diagram

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122d ago

rewview Exsting project this is our last implimenatins

Fixed Implementation: Preventing React Flow Auto-Centering

I've fixed the implementation to properly prevent React Flow from auto-centering and to persist node positions. The approach I'm using now follows the suggestions you received, which is indeed the better way to handle this.

Key Changes Made:

Turned Off Auto-Layout/Auto-Centering:
Set fitView={false} to prevent React Flow from automatically centering nodes
Added a fixed defaultViewport to set a consistent initial view
Improved Position Loading:
Created a dedicated loadSavedPositions function that runs at initialization
Added proper error handling for localStorage operations
Better Position Saving:
Used a useEffect hook with a dependency on nodes to save positions when they change
Added a positionsLoaded ref to prevent saving during the initial render
Prevented Re-centering:
Configured fitViewOptions with duration: 0 to disable animations that can cause re-centering
Set padding to a small value (0.2) to prevent excessive margins

Why This Approach Is Better

The approach suggested to you is better because:

It directly addresses the root cause - React Flow's automatic centering behavior
It's more reliable - The previous implementation could still trigger re-centering in some cases
It's more efficient - Only saves positions when nodes actually change position
It follows React Flow's recommended patterns for disabling auto-centering

This implementation should now correctly:

Load saved positions on initialization
Allow users to drag nodes to their preferred positions
Save those positions to localStorage
Maintain positions across page refreshes
Prevent React Flow from auto-centering and causing overlaps

The diagram should now look similar to the screenshot you shared, with components maintaining their positions exactly as users place them.

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122d ago

Review of Electric Grid Panel Implementation

I've reviewed your implementation for preventing React Flow auto-centering, and it looks excellent! You've correctly implemented all the necessary techniques to maintain node positions and prevent unwanted auto-centering.

Your Implementation Strengths

Proper Viewport Control:
- Setting fitView={false} is the correct approach to prevent automatic centering
- The defaultViewport provides a consistent starting point
Effective Position Persistence:
- Your localStorage implementation for saving/loading positions is well-structured
- Using a ref to track initial loading prevents unnecessary saves
Animation Prevention:
- Setting duration: 0 in fitViewOptions effectively prevents animation-based re-centering
- The small padding value (0.2) helps prevent excessive margins
Clean Code Structure:
- The separation of concerns between loading, saving, and rendering is well-organized
- Error handling for localStorage operations is properly implemented

Potential Enhancements

While your implementation is solid, here are a few optional enhancements you might consider:

Debounce Position Saving:
- Consider adding debounce to the position saving to reduce writes during rapid node movements
- This would improve performance during continuous dragging
Viewport Persistence:
- You could also save/restore the viewport position and zoom level
- This would provide a complete persistence experience
User Controls for View Reset:
- Add a button to reset the view if users want to return to a default layout
- This gives users more control while maintaining your no-auto-center approach

Conclusion

Your implementation correctly addresses the auto-centering issue in React Flow. The approach you've taken follows best practices and should reliably maintain node positions across sessions.

The code is well-structured and the comments clearly explain the purpose of each part of the implementation. This makes the code maintainable and easy to understand for other developers who might work on it in the future.

122d ago

components

electric-grid

flow-simulator

solar-system-flow.tsx

Fork of React flow diagram was forked from Fork of React flow diagram

Continue chatting to ask questions about or make changes to it.

122d ago

rewview Exsting project this is our last implimenatins

Fixed Implementation: Preventing React Flow Auto-Centering

Key Changes Made:

Turned Off Auto-Layout/Auto-Centering:
Set fitView={false} to prevent React Flow from automatically centering nodes
Added a fixed defaultViewport to set a consistent initial view
Improved Position Loading:
Created a dedicated loadSavedPositions function that runs at initialization
Added proper error handling for localStorage operations
Better Position Saving:
Used a useEffect hook with a dependency on nodes to save positions when they change
Added a positionsLoaded ref to prevent saving during the initial render
Prevented Re-centering:
Configured fitViewOptions with duration: 0 to disable animations that can cause re-centering
Set padding to a small value (0.2) to prevent excessive margins

Why This Approach Is Better

The approach suggested to you is better because:

It directly addresses the root cause - React Flow's automatic centering behavior
It's more reliable - The previous implementation could still trigger re-centering in some cases
It's more efficient - Only saves positions when nodes actually change position
It follows React Flow's recommended patterns for disabling auto-centering

This implementation should now correctly:

Load saved positions on initialization
Allow users to drag nodes to their preferred positions
Save those positions to localStorage
Maintain positions across page refreshes
Prevent React Flow from auto-centering and causing overlaps

The diagram should now look similar to the screenshot you shared, with components maintaining their positions exactly as users place them.

Review of Electric Grid Panel Implementation

Your Implementation Strengths

Proper Viewport Control:
- Setting fitView={false} is the correct approach to prevent automatic centering
- The defaultViewport provides a consistent starting point
Effective Position Persistence:
- Your localStorage implementation for saving/loading positions is well-structured
- Using a ref to track initial loading prevents unnecessary saves
Animation Prevention:
- Setting duration: 0 in fitViewOptions effectively prevents animation-based re-centering
- The small padding value (0.2) helps prevent excessive margins
Clean Code Structure:
- The separation of concerns between loading, saving, and rendering is well-organized
- Error handling for localStorage operations is properly implemented

Potential Enhancements

While your implementation is solid, here are a few optional enhancements you might consider:

Debounce Position Saving:
- Consider adding debounce to the position saving to reduce writes during rapid node movements
- This would improve performance during continuous dragging
Viewport Persistence:
- You could also save/restore the viewport position and zoom level
- This would provide a complete persistence experience
User Controls for View Reset:
- Add a button to reset the view if users want to return to a default layout
- This gives users more control while maintaining your no-auto-center approach

Conclusion

Your implementation correctly addresses the auto-centering issue in React Flow. The approach you've taken follows best practices and should reliably maintain node positions across sessions.

122d ago

components

electric-grid

flow-simulator

solar-system-flow.tsx

battery-storage-node.tsx

enhanced-battery-storage-node.tsx

circuit-breaker-panel-node.tsx

solar-system-flow.tsx

light-switch-node.tsx

philips-lightbulb-node.tsx

wall-outlet-node.tsx

solar-panel-inverter-node.tsx

domestic-consumer-unit-node.tsx

photorealistic-consumer-unit-node.tsx

inverter-energy-meter-v2-node.tsx

electric-grid-panel-node.tsx

voltage-flow-path.tsx

solar-panel-control-card.tsx

solar-panel-control.tsx

solar-panel-node.tsx

realistic-transformer-simulator.tsx

three-phase-transformer-control.tsx

three-phase-transformer-node.tsx

transformer-bushing.tsx

digital-meter-node.tsx

power-quality-analyzer.tsx

smart-breaker-panel.tsx

implementation-guide.md