Axton：Excalidraw 手绘图表

references/excalidraw-schema.md

Color Palette

Primary Colors

Purpose	Color	Hex
Main Title	Deep Blue	#1e40af
Subtitle	Medium Blue	#3b82f6
Body Text	Dark Gray	#374151
Emphasis	Orange	#f59e0b
Success	Green	#10b981
Warning	Red	#ef4444

Background Colors

Purpose	Color	Hex
Light Blue	Background	#dbeafe
Light Gray	Neutral	#f3f4f6
Light Orange	Highlight	#fef3c7
Light Green	Success	#d1fae5
Light Purple	Accent	#ede9fe

Element Types

Rectangle

{
  "type": "rectangle",
  "id": "unique-id",
  "x": 100,
  "y": 100,
  "width": 200,
  "height": 80,
  "strokeColor": "#1e40af",
  "backgroundColor": "#dbeafe",
  "fillStyle": "solid",
  "strokeWidth": 2,
  "roughness": 1,
  "opacity": 100,
  "roundness": { "type": 3 }
}

Text

{
  "type": "text",
  "id": "unique-id",
  "x": 150,
  "y": 130,
  "text": "Content here",
  "fontSize": 20,
  "fontFamily": 5,
  "textAlign": "center",
  "verticalAlign": "middle",
  "strokeColor": "#1e40af",
  "backgroundColor": "transparent"
}

Arrow

{
  "type": "arrow",
  "id": "unique-id",
  "x": 300,
  "y": 140,
  "width": 100,
  "height": 0,
  "points": [[0, 0], [100, 0]],
  "strokeColor": "#374151",
  "strokeWidth": 2,
  "startArrowhead": null,
  "endArrowhead": "arrow"
}

Ellipse

{
  "type": "ellipse",
  "id": "unique-id",
  "x": 100,
  "y": 100,
  "width": 120,
  "height": 120,
  "strokeColor": "#10b981",
  "backgroundColor": "#d1fae5",
  "fillStyle": "solid"
}

Diamond

{
  "type": "diamond",
  "id": "unique-id",
  "x": 100,
  "y": 100,
  "width": 150,
  "height": 100,
  "strokeColor": "#f59e0b",
  "backgroundColor": "#fef3c7",
  "fillStyle": "solid"
}

Line

{
  "type": "line",
  "id": "unique-id",
  "x": 100,
  "y": 100,
  "points": [[0, 0], [200, 100]],
  "strokeColor": "#374151",
  "strokeWidth": 2
}

Full JSON Structure

{
  "type": "excalidraw",
  "version": 2,
  "source": "https://excalidraw.com",
  "elements": [
    // Array of elements
  ],
  "appState": {
    "gridSize": null,
    "viewBackgroundColor": "#ffffff"
  },
  "files": {}
}

Font Family Values

Value	Font Name
1	Virgil (hand-drawn)
2	Helvetica
3	Cascadia
4	Assistant
5	Excalifont (recommended)

Fill Styles

• solid - Solid fill
• hachure - Hatched lines
• cross-hatch - Cross-hatched
• dots - Dotted pattern

Roundness Types

• { "type": 1 } - Sharp corners
• { "type": 2 } - Slight rounding
• { "type": 3 } - Full rounding (recommended)

Element Binding

To connect text to a container:

{
  "type": "rectangle",
  "id": "container-id",
  "boundElements": [{ "id": "text-id", "type": "text" }]
}

{
  "type": "text",
  "id": "text-id",
  "containerId": "container-id"
}

Arrow Binding

To connect arrows to shapes:

{
  "type": "arrow",
  "startBinding": {
    "elementId": "source-shape-id",
    "focus": 0,
    "gap": 5
  },
  "endBinding": {
    "elementId": "target-shape-id",
    "focus": 0,
    "gap": 5
  }
}