private void SetConstline()
{
NAxis axis = m_Chart.Axis(StandardAxis.PrimaryY);
// add a constline if necessary
if (axis.ConstLines.Count == 0)
{
axis.ConstLines.Add();
}
// the line series won't be used
m_Line.Visible = false;
// calc the sum of the elements
NDataSeriesDouble ds = m_FuncCalculator.Calculate();
// add a new constline
NAxisConstLine cl = (NAxisConstLine)axis.ConstLines[0];
cl.StrokeStyle.Width = new NLength(2, NGraphicsUnit.Pixel);
cl.StrokeStyle.Color = Color.Red;
cl.Value = (double)ds.GetValueForIndex(0);
m_LabelSum.Text = cl.Value.ToString();
// set proper scale for the axis, so that it includes the constline
if (cl.Value >= 0)
{
// if the sum is positive - compare it to the largest value
m_FuncCalculator.Expression = "MAX(values)";
ds = m_FuncCalculator.Calculate();
double dMax = (double)ds.GetValueForIndex(0);
if (cl.Value > dMax)
{
dMax = cl.Value;
}
axis.View = new NRangeAxisView(new NRange1DD(0, dMax), false, true);
}
else
{
// if the sum is negative - compare it to the smallest value
m_FuncCalculator.Expression = "MIN(values)";
ds = m_FuncCalculator.Calculate();
double dMin = (double)ds.GetValueForIndex(0);
if (cl.Value < dMin)
{
dMin = cl.Value;
}
axis.View = new NRangeAxisView(new NRange1DD(dMin, 0), true, false);
}
}
private void CalcFunction()
{
NDataSeriesDouble ds = m_FuncCalculator.Calculate();
if (ds == null)
{
return;
}
m_Chart.Axis(StandardAxis.PrimaryY).ConstLines.Clear();
m_Line.Visible = false;
if (m_GroupingCombo.SelectedIndex == 0)
{
// add a constline if there is no grouping
NAxisConstLine cl = m_Chart.Axis(StandardAxis.PrimaryY).ConstLines.Add();
cl.StrokeStyle.Width = new NLength(2, NGraphicsUnit.Pixel);
cl.StrokeStyle.Color = Color.Red;
cl.Value = (double)ds.GetValueForIndex(0);
}
else
{
m_Line.Visible = true;
m_Line.Values = ds;
m_Line.Values.ValueFormatter = new NNumericValueFormatter("0.00");
}
nChartControl1.Refresh();
}
private void CalculateFunction()
{
NAxisConstLine cl = (NAxisConstLine)m_Chart.Axis(StandardAxis.PrimaryY).ConstLines[0];
NDataSeriesDouble ds = m_FuncCalculator.Calculate();
cl.Value = (double)ds.GetValueForIndex(0);
m_LabelResult.Text = cl.Value.ToString();
}
private void SetConstline(NDataSeriesDouble ds)
{
NAxis axis = m_Chart.Axis(StandardAxis.PrimaryY);
// add a constline if necessary
if (axis.ConstLines.Count == 0)
{
axis.ConstLines.Add();
}
// the line series won't be used
m_Line.Visible = false;
// add a new constline
NAxisConstLine cl = (NAxisConstLine)axis.ConstLines[0];
cl.StrokeStyle.Width = new NLength(3, NGraphicsUnit.Pixel);
cl.StrokeStyle.Color = Color.Green;
cl.Value = (double)ds.GetValueForIndex(0);
string text = cl.Value.ToString();
if (text.Length > 7)
{
text = text.Substring(0, 7);
}
/* NAxisCustomLabel axisLabel = axis.CustomLabels.Add();
* axisLabel.Offset = 3;
* axisLabel.TextStyle.BackplaneStyle.Visible = true;
* axisLabel.Angle = 180;
* axisLabel.Text = text;
* axisLabel.Value = cl.Value;*/
// set proper scale for the axis, so that it includes the constline
NDataSeriesSubset subset = new NDataSeriesSubset();
subset.AddRange(0, ds.Count - 1);
double max1 = m_Line1.Values.Evaluate("MAX", subset);
double min1 = m_Line1.Values.Evaluate("MIN", subset);
double max2 = m_Line2.Values.Evaluate("MAX", subset);
double min2 = m_Line2.Values.Evaluate("MIN", subset);
if (max1 < max2)
{
max1 = max2;
}
if (min1 > min2)
{
min1 = min2;
}
if (cl.Value > max1)
{
axis.View = new NRangeAxisView(new NRange1DD(double.MinValue, cl.Value), false, true);
}
else if (cl.Value < min1)
{
axis.View = new NRangeAxisView(new NRange1DD(cl.Value, double.MaxValue), true, false);
}
}