Dynamic Silkscreen Fill Region Extension

Features

Draw polygon fill regions on PCB silkscreen layers with automatic obstacle avoidance.

• Interactive Drawing: click to add vertices, Enter to finish, Esc to cancel
• Auto Avoidance: auto-collects 6 obstacle types, expanded by gap, overlapping regions merged
• Fill-based Avoidance: select existing silkscreen fill, one-click automatic avoidance
• Boolean Operations: final fill via polygon boolean difference (outer CW + holes CCW)
• Dual Layer: supports top silkscreen (Layer 3) and bottom silkscreen (Layer 4)

Usage

Option 1: Draw New Fill

1. Open a PCB document in EasyEDA Pro
2. Menu: Dynamic Silkscreen Fill > Draw Dynamic Fill...
3. Enter gap value, click "Start Drawing"
4. Click on canvas to pick polygon vertices
5. Press Enter to finish — fill is generated automatically

Option 2: Avoid Existing Fill

1. Select a silkscreen fill region (rectangle, circle, etc.)
2. Click "Avoid Existing Fill"
3. Automatic avoidance processing

Dependencies

• polyclip-ts - Martinez-Rueda-Feito polygon boolean operation algorithm (MIT License)

License

Apache-2.0