Properties:

• color (type: color) — default: black
• coords (type: coord[]) — array of arrow line-segment coordinates
• opacity (type: number) — default: 1

Draw an arrow with line segments from the first coordinate to the last one. The arrow’s head ends on the last coordinate.

Examples

• {
      "type": "arrow",
      "color": [1, 0, 0],
      "coords": [
          [[0, 0, 0]],
          [[1, 0, 0]],
          [[1, 1, 0]],
          [[1, 1, 1]]
      ],
      "opacity": 0.5, // 50% of opacity
  }
  

• {
      "type": "arrow",
      "color": [1, 0.5, 0.5],
      "coords": [
          [[1, 1, 1]],
          [[0, 0, 0]]
      ]
  }