przekroj/SPADKI_INTEGRATION_SUMMARY.md

Power System Designer - Integration Summary

✅ Fixes and Improvements Implemented

1. Fixed Object Selection

• Issue: Selection tool didn't work properly
• Fix:
  • Implemented proper findObjectAt() function with correct hit detection
  • Added visual feedback for selected objects (blue glow)
  • Improved click detection accuracy with 20px radius

2. Added Object Dragging

• Issue: Objects couldn't be moved
• Fix:
  • Implemented handleCanvasMouseDown, handleCanvasMouseMove, and handleCanvasMouseUp event handlers
  • Added drag state management with isDragging and dragOffset
  • Objects snap to 20px grid while dragging
  • Visual feedback during dragging operations

3. Fixed Cable Connection Tool

• Issue: Cable connection tool didn't work at all
• Fix:
  • Proper two-click connection workflow
  • Visual feedback showing selected connection source (orange highlight)
  • Connection status indicator overlay
  • Automatic cable length calculation based on object positions
  • Prevention of duplicate connections and self-connections
  • Error messages for invalid connections

4. Enhanced Object Data Structure

• Issue: Objects didn't have all necessary information
• Fix:
  • Added comprehensive object properties:
    • typeDescription - Custom type descriptions
    • load - Current load vs rated power
    • voltage - Operating voltage
    • current - Current flow (for calculations)
    • Position tracking (x, y)
    • Proper default values for each object type

5. Improved Cable Data Structure

• Enhanced Cable Properties:
  • resistance - Electrical resistance based on cable type/size
  • Better cable type handling (underground vs overhead)
  • Automatic resistance calculation
  • Improved cable length calculation

6. Enhanced User Interface

Object Properties Panel:

• Object type indicator with ID
• Position display (X, Y coordinates)
• Type-specific property fields
• Enhanced transformer properties (primary/secondary voltage, power rating)
• Load vs power rating for distribution points
• Custom type descriptions

Cable Properties Panel:

• Connection source/destination display
• Electrical parameters (resistance, installation type)
• Cable type selection with proper underground/overhead distinction
• Cross-section selection with standard sizes
• Delete cable functionality

Visual Improvements:

• Better object highlighting (selected vs connection source)
• Improved cable rendering with proper colors:
  • Purple: Underground cables (YAKY, NA2XY-J)
  • Orange: Overhead cables (AL, AsXSn)
  • Dashed lines for overhead cables
• Cable labels with background for better readability
• Connection status indicator overlay

7. Added Interaction Features

Mouse Controls:

• Left Click: Select/place objects
• Drag: Move selected objects (with grid snapping)
• Connect Mode: Two-click cable connection workflow

Keyboard Shortcuts:

• Delete/Backspace: Delete selected object or cable
• Escape: Clear selection and return to select mode

Object Management:

• Delete objects (with automatic cable cleanup)
• Delete cables individually
• Proper state management for selections

8. Error Handling and Validation

• Transformer limit enforcement (only one allowed)
• Duplicate connection prevention
• Self-connection prevention
• Error messages with clear descriptions
• Input validation for numeric fields

9. Technical Improvements

Event System:

• Proper mouse event handling with coordinate transformation
• Grid snapping for precise placement
• Drag offset calculation for smooth object movement

State Management:

• Clean separation of object and cable selections
• Proper state updates with React patterns
• Automatic re-rendering on state changes

Performance:

• Efficient hit detection algorithms
• Optimized canvas rendering
• Proper event listener cleanup

🎯 Key Features Now Working

1. ✅ Object Selection: Click objects to select and edit properties
2. ✅ Object Movement: Drag objects to new positions with grid snapping
3. ✅ Cable Connections: Two-click workflow to connect objects
4. ✅ Property Editing: Comprehensive property panels for all object types
5. ✅ Visual Feedback: Clear indication of selected items and connection states
6. ✅ Delete Functions: Remove objects and cables with keyboard shortcuts
7. ✅ Data Persistence: Export/import with complete object data
8. ✅ Electrical Calculations: Ready for voltage drop analysis

🔧 Usage Instructions

Adding Objects:

1. Click object type button in toolbar (Transformer, Box, Pole, End Connection)
2. Click on canvas to place object
3. Object automatically snaps to grid

Selecting and Moving:

1. Click "Wybierz" (Select) tool
2. Click object to select (blue highlight appears)
3. Drag selected object to move (snaps to grid)

Connecting with Cables:

1. Click "Połącz kablem" (Connect with Cable) tool
2. Click first object (orange highlight appears)
3. Click second object to create cable connection
4. Cable appears with automatic length calculation

Editing Properties:

1. Select object or cable
2. Use properties panel on right to edit all parameters
3. Changes are saved automatically

Deleting Items:

1. Select object or cable
2. Press Delete/Backspace key, OR
3. Use "Usuń" (Delete) button in properties panel

The power system designer is now fully functional with professional-grade features for electrical system design and analysis!