public void DrawRainbowCurve(WriteableBitmap b, string ChartType)//绘制连续色阶准确性的分析图
{
this.ChartType = ChartType;
List <Color> al = new List <Color>();
if (ChartType == "XMark")
{
XMarkChart xm = new XMarkChart(b);
al = xm.getCurveRainbow();
}
DrawGraphic dg = new DrawGraphic(DrawCanvas);
dg.DrawColorCy(0.9f);
dg.DrawColorList(al, 0.9f);
}