Class mxPerimeter

<add as="perimeter">mxPerimeter.RectanglePerimeter</add>

style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;

When adding new perimeter functions, it is recommended to use the mxPerimeter-namespace as follows:

mxPerimeter.CustomPerimeter = function (bounds, vertex, next, orthogonal)
{
  var x = 0; // Calculate x-coordinate
  var y = 0; // Calculate y-coordainte

  return new mxPoint(x, y);
}

The new perimeter should then be registered in the mxStyleRegistry as follows

mxStyleRegistry.putValue('customPerimeter', mxPerimeter.CustomPerimeter);

model.setStyle(vertex, 'perimeter=customPerimeter');

Note that the key of the mxStyleRegistry entry for the function should be used in string values, unless mxGraphView.allowEval is true, in which case you can also use mxPerimeter.CustomPerimeter for the value in the cell style above.

var style = graph.getStylesheet().getDefaultVertexStyle();
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.CustomPerimeter;

Note that the object can be used directly when programmatically setting the value, but the key in the mxStyleRegistry should be used when setting the value via a key, value pair in a cell style.

The parameters are explained in RectanglePerimeter.