public void ProduceXaxis(DrawingCanvas _rootCanvas, string DateStart, string XaxisDisplayFormatter, int XaxisInternal)
{
List <Point> ActualXaxisLabelLocations = new List <Point>();
List <string> ActualDrawXaxisLabelList = new List <string>();
if (CommonData.XaxisLabelList == null || CommonData.XaxisLabelList.Count == 0)
{
return;
}
List <XaxisModel> LabelList = CommonData.XaxisLabelList;
StreamGeometry axispathStream = new StreamGeometry();
StreamGeometryContext axisContext = axispathStream.Open();
for (int i = 0; i < LabelList.Count; i += XaxisInternal)
{
Point p = new Point(LabelList[i].StartLocation, CommonData.ActualHeight - 20);
if (i == 0)
{
//第一个刻度根据用户给定的数据显示
ActualXaxisLabelLocations.Add(p);
previewLabel = CommonData.XaxisLabelList[i].XaxisLabel.ToString(XaxisDisplayFormatter);
if (previewLabel.Length == 2 && previewLabel[0] == '0')
{
//如果是刻度是月，会出现08、09等两位数，将其去掉0
previewLabel = previewLabel[1].ToString();
}
ActualDrawXaxisLabelList.Add(DateStart);
axisContext.BeginFigure(p, false, false);
axisContext.LineTo(new Point(p.X, p.Y + 20), true, false);
}
else
{
//按照指定格式转换刻度值
string currentLabel = CommonData.XaxisLabelList[i].XaxisLabel.ToString(XaxisDisplayFormatter);
if (currentLabel.Length == 2 && currentLabel[0] == '0')
{
//如果是刻度是月，会出现08、09等两位数，将其去掉0
currentLabel = currentLabel[1].ToString();
}
if (currentLabel != previewLabel)
{
//如果当前刻度和前一个刻度相等则不画该刻度
previewLabel = currentLabel;
if (p.X > 60)
{
//当刻度的x坐标小于60，不画刻度竖线，防止盖住第一个刻度
if (CommonData.ViewPortWidth - p.X > 60 && p.X - ActualXaxisLabelLocations[ActualXaxisLabelLocations.Count - 1].X > 60)
{
int labecount = ActualDrawXaxisLabelList.Count;
if (labecount < 3 || (labecount >= 3 &&
ActualDrawXaxisLabelList[labecount - 1] != currentLabel &&
ActualDrawXaxisLabelList[labecount - 2] != currentLabel))
{
//当刻度框的宽度小于40时，不绘制当前刻度
ActualXaxisLabelLocations.Add(p);
ActualDrawXaxisLabelList.Add(currentLabel);
axisContext.BeginFigure(p, false, false);
axisContext.LineTo(new Point(p.X, p.Y + 20), true, false);
}
}
}
}
}
}
if (ActualXaxisLabelLocations.Count > 0)
{
//最后绘制两条横线和最后一个竖线
axisContext.BeginFigure(new Point(0, CommonData.ActualHeight - 20), false, false);
axisContext.LineTo(new Point(CommonData.ViewPortWidth, CommonData.ActualHeight - 20), true, false);
axisContext.BeginFigure(new Point(0, CommonData.ActualHeight), false, false);
axisContext.LineTo(new Point(CommonData.ViewPortWidth, CommonData.ActualHeight), true, false);
axisContext.BeginFigure(new Point(CommonData.ViewPortWidth, CommonData.ActualHeight - 20), false, false);
axisContext.LineTo(new Point(CommonData.ViewPortWidth, CommonData.ActualHeight), true, false);
}
axisContext.Close();
_rootCanvas.DrawingXaxis(axispathStream, 1, ActualXaxisLabelLocations, ActualDrawXaxisLabelList);
}