/// <summary>
/// 绘制蜡烛图
/// </summary>
protected override void DrawingGraphics()
{
if (_rootCanvas == null || FastSourceInstance.GetCachedCandleList().Count == 0 || CommonData.ViewPortWidth == 0 || CommonData.ViewPortHeight == 0)
{
return;
}
double strokeness = 1;
//红色蜡烛路径，当蜡烛宽度很小时，画竖线
StreamGeometry positiveStream = new StreamGeometry();
//绿色蜡烛路径，当蜡烛宽度很小时，画竖线
StreamGeometry negativeStream = new StreamGeometry();
//数据集合
List <CandleModel> Datas = (List <CandleModel>)FastSourceInstance.GetCachedCandleList();
//得到集合中的最大最小值，用于画y轴
double ymax = CommonData.YMaxValue;
double ymin = CommonData.YMinValue;
if (ymax == 0 && ymin == 0)
{
return;
}
//y轴和数据对应的缩放比例
CommonData.Scale = CommonData.ViewPortHeight / (ymax - ymin);
//蜡烛和空白的宽度和
double drawwidth = CommonData.ViewPortWidth / Datas.Count;
//单根蜡烛的宽度
double onecandlewidth = 0;
//两个蜡烛之间的间距
double onespacewidth = 0;
if (drawwidth > 10)
{
//根据宽度 调整蜡烛和空白间距，所占的比例
onecandlewidth = drawwidth * 0.7;
onespacewidth = drawwidth * 0.3;
}
else if (drawwidth > 6)
{
onecandlewidth = drawwidth * 0.4;
onespacewidth = drawwidth * 0.6;
}
else
{
onecandlewidth = Math.Max(1, drawwidth * 0.1);
onespacewidth = drawwidth * 0.9;
}
//将蜡烛+间距之和赋值给静态变量
CommonData.OneTotalWidth = drawwidth;
//将单根蜡烛宽度赋值给静态变量
CommonData.OneCandleWidth = onecandlewidth;
//当前正在循环的数据的索引
int index = 0;
//当宽度<=2时，将蜡烛画成竖线
bool isLine = onecandlewidth <= 1;
StreamGeometryContext positiveContext = positiveStream.Open();
StreamGeometryContext negativeContext = negativeStream.Open();
YValues = new double[Datas.Count, 2];
DoubleCollection guidlinesX = new DoubleCollection();
DoubleCollection guidlinesY = new DoubleCollection();
foreach (var item in Datas)
{
double start = index * drawwidth;
double left = start; //蜡烛左边的x坐标
double right = start + onecandlewidth; //蜡烛右边界的x坐标
double center = start + onecandlewidth / 2; //蜡烛中心的x坐标
double open = CommonData.ViewPortHeight - (item.Open - ymin) * CommonData.Scale + CommonData.HeightOffet / 2; // CommonMethod.GetScaledY(item.Open - ymin);// 蜡烛开盘对应的y坐标
double close = CommonData.ViewPortHeight - (item.Close - ymin) * CommonData.Scale + CommonData.HeightOffet / 2; // CommonMethod.GetScaledY(item.Close - ymin);//蜡烛
double high = CommonData.ViewPortHeight - (item.High - ymin) * CommonData.Scale + CommonData.HeightOffet / 2; //CommonMethod.GetScaledY(item.High - ymin);
double low = CommonData.ViewPortHeight - (item.Low - ymin) * CommonData.Scale + CommonData.HeightOffet / 2; // CommonMethod.GetScaledY(item.Low - ymin);
XaxisModel xm = new XaxisModel();
xm.StartLocation = left;
xm.XaxisLabel = item.Date;
xm.EndLocation = right;// onecandlewidth > drawwidth ? right : right + onespacewidth;
xm.YLocation = close;
xm.YValue = item.Close;
XaxisLabelList.Add(xm);
YValues[index, 0] = high;
YValues[index, 1] = low;
if (!isLine)
{
//画蜡烛
if (open < close)
{
double tempopen = open;
open = close;
close = tempopen;
}
guidlinesX.Add(left - strokeness / 2);
guidlinesX.Add(left + strokeness / 2);
guidlinesX.Add(right - strokeness / 2);
guidlinesX.Add(right + strokeness / 2);
guidlinesY.Add(open - strokeness / 2);
guidlinesY.Add(open + strokeness / 2);
guidlinesY.Add(close - strokeness / 2);
guidlinesY.Add(close + strokeness / 2);
if (item.UporDown)
{
if (IsBoll)
{
positiveContext.BeginFigure(new Point(center, high), false, false);
positiveContext.LineTo(new Point(center, low), true, false);
positiveContext.BeginFigure(new Point(left, open), false, false);
positiveContext.LineTo(new Point(center, open), true, false);
positiveContext.BeginFigure(new Point(right, close), false, false);
positiveContext.LineTo(new Point(center, close), true, false);
}
else
{
positiveContext.BeginFigure(new Point(center, high), true, false);
positiveContext.LineTo(new Point(center, close), true, false);
positiveContext.BeginFigure(new Point(center, low), true, false);
positiveContext.LineTo(new Point(center, open), true, false);
positiveContext.BeginFigure(new Point(left, close), true, true);
positiveContext.LineTo(new Point(left, open), true, false);
positiveContext.LineTo(new Point(right, open), true, false);
positiveContext.LineTo(new Point(right, close), true, false);
}
}
else
{
if (IsBoll)
{
negativeContext.BeginFigure(new Point(center, high), false, false);
negativeContext.LineTo(new Point(center, low), true, false);
negativeContext.BeginFigure(new Point(left, close), false, false);
negativeContext.LineTo(new Point(center, close), true, false);
negativeContext.BeginFigure(new Point(right, open), false, false);
negativeContext.LineTo(new Point(center, open), true, false);
}
else
{
negativeContext.BeginFigure(new Point(center, high), true, false);
negativeContext.LineTo(new Point(center, close), true, false);
negativeContext.BeginFigure(new Point(center, low), true, false);
negativeContext.LineTo(new Point(center, open), true, false);
negativeContext.BeginFigure(new Point(left, close), true, true);
negativeContext.LineTo(new Point(left, open), true, false);
negativeContext.LineTo(new Point(right, open), true, false);
negativeContext.LineTo(new Point(right, close), true, false);
}
}
}
else
{
//画竖线
if (item.UporDown)
{
//红色蜡烛线
positiveContext.BeginFigure(new Point(center, high), false, false);
positiveContext.LineTo(new Point(center, low), true, false);
}
else
{
//绿色蜡烛线
negativeContext.BeginFigure(new Point(center, high), false, false);
negativeContext.LineTo(new Point(center, low), true, false);
}
}
index++;
guidlinesX.Add(center - strokeness / 2);
guidlinesX.Add(center + strokeness / 2);
}
negativeContext.Close();
positiveContext.Close();
//将x轴数据集合赋值给静态变量
CommonData.XaxisLabelList = XaxisLabelList;
_rootCanvas.DrawingGraphics(positiveStream, negativeStream, isLine, strokeness, guidlinesX, guidlinesY);
}
protected override void DrawingGraphics()
{
if (_rootCanvas == null || FastSourceInstance.GetCachedCandleList().Count == 0 || CommonData.ViewPortWidth == 0 || CommonData.ViewPortHeight == 0)
{
return;
}
double strokeness = 1;
//红色柱状图路径，当柱状图宽度很小时，画竖线
StreamGeometry positiveStream = new StreamGeometry();
//绿色柱状图路径，当柱状图宽度很小时，画竖线
StreamGeometry negativeStream = new StreamGeometry();
//数据集合
List <CandleModel> Datas = (List <CandleModel>)FastSourceInstance.GetCachedCandleList();
//得到集合中的最大最小值，用于画y轴
double ymax = CommonData.YMaxValue;
double ymin = CommonData.YMinValue;
if (ymax == 0 && ymin == 0)
{
return;
}
//y轴和数据对应的缩放比例
CommonData.Scale = CommonData.ViewPortHeight / (ymax - ymin);
//柱状图和空白的宽度和
double drawwidth = CommonData.ViewPortWidth / Datas.Count;
//单根柱状图的宽度
double onecandlewidth = 0;
//两个柱状图之间的间距
double onespacewidth = 0;
if (drawwidth > 10)
{
//根据宽度 调整柱状图和空白间距，所占的比例
onecandlewidth = drawwidth * 0.7;
onespacewidth = drawwidth * 0.3;
}
else if (drawwidth > 6)
{
onecandlewidth = drawwidth * 0.4;
onespacewidth = drawwidth * 0.6;
}
else
{
onecandlewidth = Math.Max(1, drawwidth * 0.1);
onespacewidth = drawwidth * 0.9;
}
//将柱状图+间距之和赋值给静态变量
CommonData.OneTotalWidth = drawwidth;
//将单根柱状图宽度赋值给静态变量
CommonData.OneCandleWidth = onecandlewidth;
//当前正在循环的数据的索引
int index = 0;
//当宽度<=2时，将柱状图画成竖线
bool isLine = onecandlewidth <= 1;
DoubleCollection guidlinesX = new DoubleCollection();
DoubleCollection guidlinesY = new DoubleCollection();
YValues = new double[Datas.Count, 2];
StreamGeometryContext positiveContext = positiveStream.Open();
StreamGeometryContext negativeContext = negativeStream.Open();
foreach (var item in Datas)
{
double start = index * drawwidth;
double left = start; //柱状图左边的x坐标
double right = start + onecandlewidth; //柱状图右边界的x坐标
double center = start + onecandlewidth / 2; //柱状图中心的x坐标
double top = CommonData.ViewPortHeight - (item.Volume - ymin) * CommonData.Scale + CommonData.HeightOffet / 2; // CommonMethod.GetScaledY(item.Open - ymin);// 柱状图对应的y坐标
double bottom = CommonData.ViewPortHeight + CommonData.HeightOffet / 2;
XaxisModel xm = new XaxisModel();
xm.StartLocation = left;
xm.XaxisLabel = item.Date;
xm.EndLocation = right;// onecandlewidth > drawwidth ? right : right + onespacewidth;
xm.YLocation = top;
xm.YValue = item.Volume;
XaxisLabelList.Add(xm);
YValues[index, 0] = top;
YValues[index, 1] = bottom;
if (!isLine)
{
//画柱状图
guidlinesX.Add(left - strokeness / 2);
guidlinesX.Add(left + strokeness / 2);
guidlinesX.Add(right - strokeness / 2);
guidlinesX.Add(right + strokeness / 2);
guidlinesY.Add(top - strokeness / 2);
guidlinesY.Add(top + strokeness / 2);
guidlinesY.Add(bottom - strokeness / 2);
guidlinesY.Add(bottom + strokeness / 2);
if (item.UporDown)
{
positiveContext.BeginFigure(new Point(left, top), true, true);
positiveContext.LineTo(new Point(left, bottom), true, false);
positiveContext.LineTo(new Point(right, bottom), true, false);
positiveContext.LineTo(new Point(right, top), true, false);
}
else
{
negativeContext.BeginFigure(new Point(left, top), true, true);
negativeContext.LineTo(new Point(left, bottom), true, false);
negativeContext.LineTo(new Point(right, bottom), true, false);
negativeContext.LineTo(new Point(right, top), true, false);
negativeContext.LineTo(new Point(left, top), true, false);
}
}
else
{
//画竖线
if (item.UporDown)
{
//红色柱状图线
positiveContext.BeginFigure(new Point(center, top), false, false);
positiveContext.LineTo(new Point(center, bottom), true, false);
}
else
{
//绿色柱状图线
negativeContext.BeginFigure(new Point(center, top), false, false);
negativeContext.LineTo(new Point(center, bottom), true, false);
}
guidlinesX.Add(center - strokeness / 2);
guidlinesX.Add(center + strokeness / 2);
}
index++;
}
negativeContext.Close();
positiveContext.Close();
//将x轴数据集合赋值给静态变量
CommonData.XaxisLabelList = XaxisLabelList;
_rootCanvas.DrawingGraphics(positiveStream, negativeStream, isLine, strokeness, guidlinesX, guidlinesY);
}
