Silverlight 雷达图

由于工作需要，

 

做了一个雷达图，用于报表展示。

 

没有多少东西，都是一些简单的加减乘除的东东

 

直接源码了:http://www.jm47.com/project/4430.aspx

 

 

 

 

 

主要代码：

基图

 

/// <summary>
        /// 以中间为点画线
        /// </summary>
        /// <param name="center"></param>
        privatevoid DrawLine()
        {
            var angle = Angle;

            var center = Center;
            //横轴个数
            var hcount = this.HorizontalCount;

            //x轴每一小格的长度
            var xstep = Radius / hcount;
            var yaxises = new RadarAxis[VerticalCount];

            var dataDic = Common.Helper.GetMaxandNinValue(DataContext as System.Collections.ICollection, this.YValueNames);

            //从90度起开始画线条
            //画星状线
            for (var i = 0; i < yaxises.Length; i  )
            {
                var axis =yaxises[i]= new RadarAxis();
                var path = newPath();
                axis.AxisShap = path;
                axis.BindName = YValueNames[i];
                var dic = dataDic[axis.BindName];
                axis.MaxValue = dic[1].Value;
                axis.MinValue = Common.Helper.CheckMinValue(dic[0].Value);

                axis.Length = Radius;
                axis.Rotate = i * angle ;

                //计算纵轴离中心的偏移量
                var offsety = axis.RotateSin * Radius;
                var offsetx = axis.RotateCos * Radius;

                axis.StartPoint = center;
                axis.EndPoint = new Point(center.X   offsetx, center.Y   offsety);
                axis.AType = AxisType.YRadar;
                axis.Stroke = ForeColor;

                var geo = new PathGeometry();
                path.Data = geo;
                var fig = new PathFigure();
                geo.Figures.Add(fig);
                fig.StartPoint = axis.StartPoint;
                fig.Segments.Add(new LineSegment() { Point=axis.EndPoint });

                AddChild(axis.AxisShap);

                //生成Y轴标签
                var label = CreateYLabel(axis);

                AddChild(label);

                this.Axises.Add(axis);
            }

            //当线条少于5条时。无法画多边形。因为四条就是一个正方形。所以会默认用圆形。
            if (IsCircle == false && VerticalCount > 4)
            {
                for (var i = 0; i < hcount; i  )
                {
                    var xaxis = new RadarAxis() { AType = AxisType.XRadar, Stroke = ForeColor};
                    var shap = new Polygon();
                    shap.Stroke = xaxis.Stroke;

                    xaxis.AxisShap = shap;

                    this.Axises.Add(xaxis);
                    var step = xstep * (i   1);

                    foreach (var yaxis in yaxises)
                    {
                        //纵坐标上的点偏移量
                        var xoffsetx = yaxis.RotateCos * step;
                        var xoffsety = yaxis.RotateSin * step;

                        var p = new Point(Center.X   xoffsetx, Center.Y   xoffsety);
                        shap.Points.Add(p);
                    }

                    AddChild(shap);
                }
            }
            else
            {
                for (var i = 0; i < hcount; i  )
                {
                    var xaxis = new RadarAxis() { AType = AxisType.XRadar, Stroke = ForeColor};
                    var path = newPath();
                    xaxis.AxisShap = path;

                    this.Axises.Add(xaxis);

                    var step = xstep * (i   1);
                    var cirl = new EllipseGeometry();
                    path.Data = cirl;
                    cirl.Center = Center;
                    cirl.RadiusX =cirl.RadiusY = step;

                    AddChild(xaxis.AxisShap);
                }
            }
        }