nplot-devel

[Nplot-devel] How do I set the width for axis labels?

[Benjamin K. <ben...@go...>]

Hi

I'm working on a WinForms app which displays many PlotSuface2Ds in a  
row:

100 |
    |
    |
50 |
    |
    |
  0 +--------------------------------

1000 |
     |
     |
500 |
     |
     |
   0 +-------------------------------

The lower plot is shifted to the right because the TickText is a bit  
wider. How can I prevent this from happening? I've tried some  
workarounds but they sucked:

- Rotated TickTexts by 90° - looks ugly
- Moved TickTexts to the inside - looks even uglier

I think the optimal way of accomplishing this is by specifying the  
width for the TickTexts but I didn't find a way to modify the bounding  
box of the axis. Do I need to modify NPlot's source? If so, what is  
the best way?

Thanks in advance
-- Benjamin

Re: [Nplot-devel] How do I set the width for axis labels?

[Dave C. <dav...@gm...>]

Here's some of the axis line up code I use:
            plotSurface1.YAxis1.LabelOffsetAbsolute = true;
            plotSurface1.YAxis1.AutoScaleTicks = true;
            plotSurface1.YAxis1.Label = " ";
            plotSurface1.YAxis1.LabelOffset = 50;
            if ((double)chartDataTable.Rows[0][4] > 25) // xxx vs jpy
                plotSurface1.YAxis1.NumberFormat = "{0:F2}";
            else
                plotSurface1.YAxis1.NumberFormat = "{0:F4}";

            plotSurface1.YAxis2 = (Axis)plotSurface1.YAxis1.Clone();
            plotSurface1.YAxis2.TickTextNextToAxis = false;
            plotSurface1.YAxis2.Label = " ";
            plotSurface1.YAxis2.LabelOffset = 50;

            plotSurface1.XAxis1 = new LinearAxis(plotSurface1.XAxis1);
            plotSurface1.XAxis1.IncreaseRange(1d /
chartDataTable.Rows.Count);
            plotSurface1.XAxis1.SmallTickSize = 1;
            plotSurface1.XAxis1.LabelOffset = 40;

            // Indicator Chart
            indicatorPlot.Clear();
            indicatorPlot.DateTimeToolTip = true;
            indicatorPlot.BackColor = Color.Cornsilk;
            indicatorPlot.PlotBackColor = Color.Ivory;

            indicatorPlot.Add(GetZeroLinePlot(), 1000);

            indicatorPlot.SmoothingMode =
System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
            indicatorPlot.Add(new Grid());
            indicatorPlot.Padding = 5;

            indicatorPlot.YAxis1.LabelOffsetAbsolute = true;
            indicatorPlot.YAxis1.AutoScaleTicks = true;
            indicatorPlot.YAxis1.Label = "CCI";
            indicatorPlot.YAxis1.LabelOffset =
plotSurface1.YAxis1.LabelOffset;

            indicatorPlot.YAxis2 = (Axis)indicatorPlot.YAxis1.Clone();
            indicatorPlot.YAxis2.TickTextNextToAxis = false;
            indicatorPlot.YAxis2.Label = " ";
            indicatorPlot.YAxis2.LabelOffset =
plotSurface1.YAxis2.LabelOffset;

            indicatorPlot.XAxis1 = new LinearAxis(indicatorPlot.XAxis1);
            indicatorPlot.XAxis1.IncreaseRange(1d /
chartDataTable.Rows.Count);
            indicatorPlot.XAxis1.SmallTickSize = 1;
            indicatorPlot.XAxis1.LabelOffset = 40;

Re: [Nplot-devel] How do I set the width for axis labels?

[Benjamin K. <ben...@go...>]

Hi Dave

Sorry, but your solution didn't work for me. However, I've found a  
workaround.

1. Set the TickText font to a monospaced font (e. g. Courier New)
2. Supress commas by specifying {0:F0} as number format
    (this is OK for the moment but needs to be changed if I need  
floating point labels)
3. Loop through all the PlotSurface2D and find the largest WorldMin/ 
WorldMax
    (with double.ToString("F0").Length)
4. Set margin and width for each P2D based on this values

-- Benjamin