如何调整HighChart Annotation @ Runtime的大小？

Question

这是一个用于在高图中存储注释的代码我想做这样的事情但是为了调整我的运行时添加的SVG注释。

我该怎么做？

这是我的代码：

storeAnnotation: function(event, annotation, chart) {

                                        if(!chart.annotationDraging) {
                                            event.stopPropagation();
                                            event.preventDefault();
                                        }
                        if((!isOldIE && event.button === 0) || (isOldIE && event.button === 1)) {
                                            var posX = event.pageX,
                                                    posY = event.pageY;
                                            chart.activeAnnotation = annotation;
                                            chart.activeAnnotation.startX = posX;
                                            chart.activeAnnotation.startY = posY;
                                            chart.activeAnnotation.transX = 0; 
                                            chart.activeAnnotation.transY = 0; 
                                            //translateAnnotation(event);
                                            addEvent(document, 'mousemove', function(e){
                                                    annotation.events.translateAnnotation(e, chart);
                                            });
                                            //addEvent(chart.container, 'mouseleave', releaseAnnotation); TO BE OR NOT TO BE?
                                        }

                }