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ASSA Draw

docs/features/assa-draw.md

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ASSA Draw

A vector drawing tool for creating ASSA drawing commands (\p1 ... \p0) used in Advanced SubStation Alpha subtitles.

Menu: ASSA toolsDraw...

How to Use

  1. Go to ASSA toolsDraw... to open the drawing canvas.
  2. Select a drawing tool (Line, Bézier curve, Rectangle, Circle, etc.) from the toolbar.
  3. Click on the canvas to create points and shapes.
  4. Use the shape tree on the side to manage layers and shapes.
  5. Adjust individual point coordinates for precise positioning.
  6. Toggle the grid overlay for alignment guidance.
  7. Click OK to insert the generated ASSA drawing code into your subtitle.

Features

Drawing Tools

  • Select: Selection/move tool for picking and dragging existing shapes and points.
  • Line: Draw straight line segments.
  • Bézier Curve: Draw smooth curves with control points.
  • Rectangle: Draw rectangles.
  • Circle: Draw circles/ellipses.
  • Color Picker: Pick a color from the canvas.

Canvas

  • Configurable canvas size (default 1920×1080).
  • Zoom in/out for detailed editing.
  • Grid overlay for alignment.
  • Real-time position display.

Shape Management

  • Organize shapes in a tree view with layers.
  • Select, move, and delete shapes or individual points.
  • Set layer colors.
  • Edit exact X/Y coordinates for selected points.

Import / Export

  • Open existing ASSA drawing files.
  • Save drawing code as files.
  • Copy generated ASSA drawing code to the subtitle.

Keyboard Shortcuts

ShortcutAction
F1Show help
EscapeClose dialog