/// <summary>
/// Рисование всех кривых
/// </summary>
private void DrawCurves()
{
// Подготовим большие массивы данных по осям X и Y
double xmin = -20;
double xmax = 20;
// Поличество точек в полном массиве
int count = 10000;
// Массивы с координатами точек по X и Y
double[] xlist = new double[count];
double[] ylist = new double[count];
// Шаг дискретизации
double dx = (xmax - xmin) / count;
// Заполним массив из большого количества элементов
for (int i = 0; i < count; i++)
{
double currx = xmin + i * dx;
xlist[i] = currx;
ylist[i] = f(currx);
}
// Сначала нарисуем кривую по полноценным массивам
PointPairList fullList = new PointPairList(xlist, ylist);
DrawGraph(fullList, Color.Red);
// Теперь воспользуемся классом FilteredPointList,
// чтобы уменьшить количество отображаемых точек.
// В конструктор класса передаются полноценные массивы
FilteredPointList filteredList = new FilteredPointList(xlist, ylist);
// Параметры фильтрации точек
// Нас интересует только интервал от -15 до 15
double filteredXMin = -15;
double filteredXMax = 15;
// Нам достаточно 20-ти точек
int filteredCount = 20;
// Установим параметры фильтрации
filteredList.SetBounds(filteredXMin, filteredXMax, filteredCount);
// Нарисуем кривую по отфильтрованным точкам
DrawGraph(filteredList, Color.Blue);
}
private void ZedGraphControl1_ZoomEvent(ZedGraphControl sender, ZoomState oldState, ZoomState newState)
{
if (AllowZoom)
{
IsZoomed = true;
// The maximum number of point to displayed is based on the width of the graphpane, and the visible range of the X axis
filteredDiameter.SetBounds(sender.GraphPane.XAxis.Scale.Min, sender.GraphPane.XAxis.Scale.Max, (int)sender.GraphPane.Rect.Width);
ReZoomLineObjs();
// This refreshes the graph when the button is released after a panning operation
if (newState.Type == ZoomState.StateType.Pan)
{
sender.Invalidate();
}
}
}
public void AddDataPoint(string diameter)
{
diameterList.Add(new DataListXY(new XDate(DateTime.Now), Convert.ToDouble(diameter)));
double[] dblTime = new double[diameterList.Count];
double[] dblDiameter = new double[diameterList.Count];
int index = 0;
foreach (DataListXY item in diameterList.ToList())
{
dblTime[index] = item.X;
dblDiameter[index] = item.Y;
index++;
}
if (IsHistorical)
{
if (!IsZoomed)
{
filteredDiameter = new FilteredPointList(dblTime, dblDiameter);
filteredDiameter.SetBounds(this.zedGraphControl1.GraphPane.XAxis.Scale.Min, new XDate(DateTime.Now.AddMilliseconds(2)), (int)this.zedGraphControl1.GraphPane.Rect.Width);
this.zedGraphControl1.GraphPane.CurveList.Remove(diameterCurve);
diameterCurve = this.zedGraphControl1.GraphPane.AddCurve("Diameter", filteredDiameter, System.Drawing.Color.FromArgb(0, 153, 255), SymbolType.None);
//***********************//
//Adding the reference lines here updates the visual faster than adding them in a function
this.zedGraphControl1.GraphPane.GraphObjList.Remove(upperLimitLine);
if (this.zedGraphControl1.GraphPane.YAxis.Scale.Max >= Convert.ToDouble(upperLimitDiameter))
{
upperLimitLine = new LineObj(System.Drawing.Color.FromArgb(255, 0, 0), this.zedGraphControl1.GraphPane.XAxis.Scale.Min, Convert.ToDouble(upperLimitDiameter), dblTime[dblTime.Count() - 1], Convert.ToDouble(upperLimitDiameter));
upperLimitLine.Line.Width = 2.0F;
this.zedGraphControl1.GraphPane.GraphObjList.Add(upperLimitLine);
}
this.zedGraphControl1.GraphPane.GraphObjList.Remove(lowerLimitLine);
if (this.zedGraphControl1.GraphPane.YAxis.Scale.Min <= Convert.ToDouble(lowerLimitDiameter))
{
lowerLimitLine = new LineObj(System.Drawing.Color.FromArgb(255, 0, 0), this.zedGraphControl1.GraphPane.XAxis.Scale.Min, Convert.ToDouble(lowerLimitDiameter), dblTime[dblTime.Count() - 1], Convert.ToDouble(lowerLimitDiameter));
lowerLimitLine.Line.Width = 2.0F;
this.zedGraphControl1.GraphPane.GraphObjList.Add(lowerLimitLine);
}
this.zedGraphControl1.GraphPane.GraphObjList.Remove(nominalLine);
if (this.zedGraphControl1.GraphPane.YAxis.Scale.Min <= Convert.ToDouble(nominalDiameter) && this.zedGraphControl1.GraphPane.YAxis.Scale.Max >= Convert.ToDouble(nominalDiameter))
{
nominalLine = new LineObj(System.Drawing.Color.FromArgb(64, 191, 67), this.zedGraphControl1.GraphPane.XAxis.Scale.Min, Convert.ToDouble(nominalDiameter), dblTime[dblTime.Count() - 1], Convert.ToDouble(nominalDiameter));
nominalLine.Line.Width = 2.0F;
this.zedGraphControl1.GraphPane.GraphObjList.Add(nominalLine);
}
//***********************//
}
}
else
{
filteredDiameter = new FilteredPointList(dblTime, dblDiameter);
filteredDiameter.SetBounds(new XDate(DateTime.Now.AddMilliseconds(-5000)), new XDate(DateTime.Now.AddMilliseconds(2)), (int)this.zedGraphControl1.GraphPane.Rect.Width);
this.zedGraphControl1.GraphPane.CurveList.Remove(diameterCurve);
diameterCurve = this.zedGraphControl1.GraphPane.AddCurve("Diameter", filteredDiameter, System.Drawing.Color.FromArgb(0, 153, 255), SymbolType.None);
//***********************//
//Adding the reference lines here updates the visual faster than adding them in a function
this.zedGraphControl1.GraphPane.GraphObjList.Remove(upperLimitLine);
if (this.zedGraphControl1.GraphPane.YAxis.Scale.Max >= Convert.ToDouble(upperLimitDiameter))
{
upperLimitLine = new LineObj(System.Drawing.Color.FromArgb(255, 0, 0), new XDate(DateTime.Now.AddMilliseconds(-5000)), Convert.ToDouble(upperLimitDiameter), this.zedGraphControl1.GraphPane.XAxis.Scale.Max, Convert.ToDouble(upperLimitDiameter));
upperLimitLine.Line.Width = 2.0F;
this.zedGraphControl1.GraphPane.GraphObjList.Add(upperLimitLine);
}
this.zedGraphControl1.GraphPane.GraphObjList.Remove(lowerLimitLine);
if (this.zedGraphControl1.GraphPane.YAxis.Scale.Min <= Convert.ToDouble(lowerLimitDiameter))
{
lowerLimitLine = new LineObj(System.Drawing.Color.FromArgb(255, 0, 0), new XDate(DateTime.Now.AddMilliseconds(-5000)), Convert.ToDouble(lowerLimitDiameter), this.zedGraphControl1.GraphPane.XAxis.Scale.Max, Convert.ToDouble(lowerLimitDiameter));
lowerLimitLine.Line.Width = 2.0F;
this.zedGraphControl1.GraphPane.GraphObjList.Add(lowerLimitLine);
}
this.zedGraphControl1.GraphPane.GraphObjList.Remove(nominalLine);
if (this.zedGraphControl1.GraphPane.YAxis.Scale.Min <= Convert.ToDouble(nominalDiameter) && this.zedGraphControl1.GraphPane.YAxis.Scale.Max >= Convert.ToDouble(nominalDiameter))
{
nominalLine = new LineObj(System.Drawing.Color.FromArgb(64, 191, 67), new XDate(DateTime.Now.AddMilliseconds(-5000)), Convert.ToDouble(nominalDiameter), this.zedGraphControl1.GraphPane.XAxis.Scale.Max, Convert.ToDouble(nominalDiameter));
nominalLine.Line.Width = 2.0F;
this.zedGraphControl1.GraphPane.GraphObjList.Add(nominalLine);
}
//***********************//
}
}