/// <summary>数据转换为待绘制区域上的点集
/// </summary>
/// <param name="width">待绘制区域的宽度</param>
/// <param name="height">待绘制区域的高度</param>
public List <PointF[]> GetPointsToDraw(int width, int height)
{
List <PointF[]> pointsLists = new List <PointF[]>();
if ((DisplayRect.XRange > 0.9F * XDataAccuracy ||
DisplayRect.YRange > 0.9F * YDataAccuracy) &&
DataLists.HasData())
{
foreach (DataPairList <float> dataList in DataLists)
{
List <PointF> points = new List <PointF>();
foreach (DataPair <float> dataPair in dataList)
{
points.Add(new PointF
{
X = (dataPair.X - DisplayRect.XMin) * (width - 1)
/ DisplayRect.XRange,
Y = (dataPair.Y - DisplayRect.YMin) * (height - 1)
/ DisplayRect.YRange
});
}
pointsLists.Add(points.ToArray());
}
}
return(pointsLists);
}
/// <summary>根据画图模式和数据调整坐标显示
/// </summary>
public void UpdateDisplayRect(DataRect initialRect, GraphMode graphStyle)
{
if (DataLists.HasData())
{
if (graphStyle == GraphMode.GlobalMode)
{
DisplayRect.XMin = (DataLists.MinX < initialRect.XMin)
? DataLists.MinX : initialRect.XMin;
DisplayRect.XMax = (DataLists.MaxX > initialRect.XMax)
? DataLists.MaxX : initialRect.XMax;
DisplayRect.YMin = (DataLists.MinY < initialRect.YMin)
? DataLists.MinY : initialRect.YMin;
DisplayRect.YMax = (DataLists.MaxY > initialRect.YMax)
? DataLists.MaxY : initialRect.YMax;
}
else if (graphStyle == GraphMode.FixMoveMode)
{
if (DataLists.MaxX > DisplayRect.XMax)
{
DisplayRect.XMin += DataLists.MaxX - DisplayRect.XMax;
DisplayRect.XMax = DataLists.MaxX;
}
DisplayRect.YMin = (DataLists.MinY < DisplayRect.YMin)
? DataLists.MinY : DisplayRect.YMin;
DisplayRect.YMax = (DataLists.MaxY > DisplayRect.YMax)
? DataLists.MaxY : DisplayRect.YMax;
}
}
else
{
DisplayRect.UpdateRect(initialRect);
}
}