mxGraph.prototype.setConnectionConstraint=function(a,b,c,d){if(null!=d){this.model.beginUpdate();try{null==d||null==d.point?(this.setCellStyles(c?mxConstants.STYLE_EXIT_X:mxConstants.STYLE_ENTRY_X,null,[a]),this.setCellStyles(c?mxConstants.STYLE_EXIT_Y:mxConstants.STYLE_ENTRY_Y,null,[a]),this.setCellStyles(c?mxConstants.STYLE_EXIT_DX:mxConstants.STYLE_ENTRY_DX,null,[a]),this.setCellStyles(c?mxConstants.STYLE_EXIT_DY:mxConstants.STYLE_ENTRY_DY,null,[a]),this.setCellStyles(c?mxConstants.STYLE_EXIT_PERIMETER: