Shapes #

It is possible to stylize elements with geometric forms or images. Those shapes are only cosmetic and serve no functional purpose.

All shapes need a p or similar references node ids.

Predefined types for geometries are:

• fix: Marks a node as stationary. w0 determines an angle. Default: 0.
• flt: Same as fix, but marks node as being movable translational.
• slider: Same as flt, but represents a movable slider.
• bar: Connect node p1 and node p2 using a bar.
• beam: Same as bar, but using only one p. Reference an angle of a constraint with wref and define the length of the beam with len.
• wheel: Draw a wheel on a node. wref a constraint for the angle.
• poly: Same as beam, but instead of a beam, a polygon is drawn using a pts array of coordinates.
• img: Import an image using g2's image function.

Examples #

{
    "nodes": [
        { "id": "A0", "x": 75, "y": 125, "base": true },
        { "id": "A", "x": 100, "y": 175 },
        { "id": "B0", "x": 300, "y": 125 }
    ],
    "constraints": [
        {
          "id": "a", "p1": "A0", "p2": "A",
          "len": { "type": "const" },
          "ori": { "type": "drive", "repeat": 3 }
        }, {
          "id": "b", "p1": "B0", "p2": "A",
          "len": { "type": "const" }
        }, {
          "id": "c", "p1": "A0", "p2": "B0",
          "ori": { "type": "const" }
        }
    ],
    "shapes": [
        { "type": "fix", "p": "A0" },
        { "type": "flt", "p": "B0" }
    ]
}