public/libraries.js
function (x, y, w, h, options) {
                    return SVGRenderer.prototype.symbols[
                      !defined(options) || !options.r ? 'square' : 'callout'
                      ].call(0, x, y, w, h, options);
                }
function (x, y, w, h, options) {
                    return SVGRenderer.prototype.symbols[
                      !defined(options) || !options.r ? 'square' : 'callout'
                      ].call(0, x, y, w, h, options);
                }
function ( x , y , w , h , options ) { return SVGRenderer . prototype . symbols [ ! defined ( options ) || ! options . r ? 'square' : 'callout' ] . call ( 0 , x , y , w , h , options ) ; }
Add rectangle symbol path which eases rotation and omits arcsize problems
compared to the built-in VML roundrect shape. When borders are not rounded,
use the simpler square path, else use the callout path without the arrow.
Add rectangle symbol path which eases rotation and omits arcsize problems compared to the built - in VML roundrect shape . When borders are not rounded use the simpler square path else use the callout path without the arrow .