n-(c-f);f=l*a+f*n;a=Math.sqrt(0>=f?0:f*f/(a*a+n*n));a>e&&(a=e);e=Math.sqrt(mxUtils.ptSegDistSq(g.x,g.y,k.x,k.y,b,c));-1==mxUtils.relativeCcw(g.x,g.y,k.x,k.y,b,c)&&(e=-e);return new mxPoint((d/2-m-a)/d*-2,e/this.scale)}}return new mxPoint};