tbf/ResultsBrowser/Forms/HistogramCtrl.cs
2019-02-19 14:42:46 +01:00

43 lines
1.5 KiB
C#

///
/// Copyright (c) 2019 Sensus Slovensko a.s.
///
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
namespace ResultsBrowser.Forms
{
public partial class HistogramCtrl : UserControl
{
/// <summary>
/// Create user control that displays a bar chart iwth custom X-axis labels.
/// </summary>
/// <param name="title">Title of the chart displayed at the top</param>
/// <param name="values">Values = bar lengths</param>
/// <param name="labels">Labels for the X-axis</param>
public HistogramCtrl(string title, double[] values, string[] labels)
{
InitializeComponent();
if (myChart.Titles.Count > 0) myChart.Titles[0].Text = title;
if ((myChart.Series.Count > 0) && (values != null))
{
int startOffset = -1;
int endOffset = 1;
for (int i = 0; i < Math.Min(values.Length + 1, labels.Length); i++)
{
if (i < values.Length) myChart.Series[0].Points.Add(values[i]);
if (!string.IsNullOrEmpty(labels[i]))
{
myChart.ChartAreas[0].AxisX.CustomLabels.Add(new System.Windows.Forms.DataVisualization.Charting.CustomLabel(startOffset, endOffset, labels[i], 0, LabelMarkStyle.None));
}
startOffset = startOffset + 1;
endOffset = endOffset + 1;
}
}
}
}
}