Profile Picture

NHeatMapSeries combined with NLineSeries

Posted By joern kunze 6 Years Ago
Author
Message
joern kunze
Problem Posted 6 Years Ago
View Quick Profile
Junior Member

Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)

Group: Forum Members
Last Active: 2 Years Ago
Posts: 86, Visits: 218
Hello Experts,

I have a NHeatMapSeries which looks like:
https://www.nevron.com/forum/uploads/images/13e3edb2-0b81-4adf-bf7b-ed89.jpg
So far so good. But now I want to add a line with a anchored CallOut-Label at y=5:

   NLineSeries line = (NLineSeries)_oChart.Series.Add(SeriesType.Line);
    line.Name = "ReferenceLine";
    line.UseXValues = true;
    line.MarkerStyle.Visible = false;
    line.DataLabelStyle.Visible = false;
    line.InflateMargins = false;
    line.BorderStyle.Color = oLine.Color;
    line.BorderStyle.Width = new NLength(oLine.Thickness, NPointGraphicsUnit.Point);
    line.Values.AddRange(oLine.YValues);
line.XValues.AddRange(oLine.XValues);
     // Create a rounded rect callout 
      NRectangularCallout m_RectangularCallout = new NRectangularCallout();
      int iLabelPos = 8; 
     ...
     // Anchor the callout to data point #0 of the line series
      NDataPointAnchor anchor = new NDataPointAnchor(line, 1, ContentAlignment.MiddleCenter, StringAlignment.Center);
      m_RectangularCallout.Anchor = anchor;
      m_RectangularCallout.AlwaysInsideParent = true; 
_NevronChart.Panels.Add(m_RectangularCallout);

Result: The Callout label is plotted (see picture lower right: label with green back colour)- but no line is plotted. The very same approach does work for Point- and Line plots though. What must be done to make it working with NHeatMapSeries ?

Thanks for the help,
best regards,
Joern




Nevron Support
Posted 6 Years Ago
View Quick Profile
Supreme Being

Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)Supreme Being (4,329 reputation)

Group: Forum Members
Last Active: Last Year
Posts: 3,039, Visits: 3,746
Hi Joern,

Most likely the line series is beneath the heatmap - we tested with the following code and it was working properly:

  private void Form1_Load(object sender, EventArgs e)
  {
   // set a chart title
   NLabel title = new NLabel("Wafer Chart");
   title.TextStyle.FontStyle = new NFontStyle("Times New Roman", 18, FontStyle.Italic);
   title.TextStyle.FillStyle = new NColorFillStyle(Color.Blue);

   // configure chart
   NCartesianChart chart = (NCartesianChart)nChartControl1.Charts[0];

   NHeatMapSeries heatMap = new NHeatMapSeries();
   chart.Series.Add(heatMap);

   NHeatMapData data = heatMap.Data;

   heatMap.Palette.Mode = PaletteMode.AutoFixedEntryCount;
   heatMap.Palette.AutoPaletteColors = new NArgbColorValue[] { new NArgbColorValue(Color.Green), new NArgbColorValue(Color.Red) };
   heatMap.Palette.SmoothPalette = true;

   int gridSizeX = 100;
   int gridSizeY = 100;
   data.SetGridSize(gridSizeX, gridSizeY);

   int centerX = gridSizeX / 2;
   int centerY = gridSizeY / 2;

   int radius = gridSizeX / 2;
   Random rand = new Random();

   for (int y = 0; y < gridSizeY; y++)
   {
    for (int x = 0; x < gridSizeX; x++)
    {
     int dx = x - centerX;
     int dy = y - centerY;

     double pointDistance = Math.Sqrt(dx * dx + dy * dy);

     if (pointDistance < radius)
     {
      // assign value
      data.SetValue(x, y, pointDistance + rand.Next(20));
     }
     else
     {
      data.SetValue(x, y, double.NaN);
     }
    }
   }

   NLineSeries line = new NLineSeries();
   chart.Series.Insert(0, line);
   line.Name = "ReferenceLine";
   line.UseXValues = true;
   line.MarkerStyle.Visible = false;
   line.DataLabelStyle.Visible = false;
   line.InflateMargins = false;
   line.BorderStyle.Color = Color.Cyan;
   line.BorderStyle.Width = new NLength(2, NPointGraphicsUnit.Point);

   for (int i = 0; i < 100; i++)
   {
    line.Values.AddRange(i);
    line.XValues.AddRange(i);
   }

   // Create a rounded rect callout
   NRectangularCallout rectangularCallout = new NRectangularCallout();
   rectangularCallout.Text = "Test";
   rectangularCallout.UseAutomaticSize = true;

   // Anchor the callout to data point #0 of the line series
   NDataPointAnchor anchor = new NDataPointAnchor(line, 1, ContentAlignment.MiddleCenter, StringAlignment.Center);
   rectangularCallout.Anchor = anchor;
   rectangularCallout.AlwaysInsideParent = true;
   chart.ChildPanels.Add(rectangularCallout);
  }

Note that the code changed to insert the line series at the first place in the collection:
  NLineSeries line = new NLineSeries();
   chart.Series.Insert(0, line);
instead of adding it at the back.
Hope this helps - let us know if you meet any problems or have any questions.




Best Regards,
Nevron Support Team



joern kunze
Posted 6 Years Ago
View Quick Profile
Junior Member

Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)Junior Member (13 reputation)

Group: Forum Members
Last Active: 2 Years Ago
Posts: 86, Visits: 218
... thanks a lot for the explenation - now I got it working. 

By the way, to avoid changing the series index (which might cause some trouble in existing code), I just inverted the plot order:

oChart.Axis(StandardAxis.Depth).ScaleConfigurator.Invert = true;

Best regards,
Joern




Similar Topics


Reading This Topic