chore: 初始化解放动力大柴MES管理站点
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yexingqiang
300
App_code/drawchart/DrawPareto.cs
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300
App_code/drawchart/DrawPareto.cs
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Web.UI.DataVisualization.Charting;
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using System.Collections;
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/// <summary>
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///DrawPareto 的摘要说明
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/// </summary>
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public class DrawPareto
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{
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public DrawPareto()
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{
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//
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//TODO: 在此处添加构造函数逻辑
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//
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}
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/// <summary>
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/// Number of class intervals the data range is devided in.
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/// This property only has affect when "SegmentIntervalWidth" is
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/// set to double.NaN.
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/// </summary>
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public int SegmentIntervalNumber = 20;
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/// <summary>
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/// Histogram class interval width. Setting this value to "double.NaN"
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/// will result in automatic width calculation based on the data range
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/// and number of required interval specified in "SegmentIntervalNumber".
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/// </summary>
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public double SegmentIntervalWidth = double.NaN;
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/// <summary>
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/// Indicates that percent frequency should be shown on the right axis
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/// </summary>
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public bool ShowPercentOnSecondaryYAxis = true;
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public void CreatePareto(
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Chart chartControl,
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string dataSeriesName,
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string histogramSeriesName)
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{
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// Validate input
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if (chartControl == null)
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{
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throw (new ArgumentNullException("chartControl"));
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}
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if (chartControl.Series.IndexOf(dataSeriesName) < 0)
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{
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throw (new ArgumentException("Series with name'" + dataSeriesName + "' was not found.", "dataSeriesName"));
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}
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// Make data series invisible
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chartControl.Series[dataSeriesName].Enabled = false;
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// Check if histogram series exsists
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Series histogramSeries = null;
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if (chartControl.Series.IndexOf(histogramSeriesName) < 0)
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{
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// Add new series
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histogramSeries = chartControl.Series.Add(histogramSeriesName);
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// Set new series chart type and other attributes
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histogramSeries.ChartType = SeriesChartType.Column;
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histogramSeries.BorderColor = Color.Black;
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histogramSeries.BorderWidth = 1;
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histogramSeries.BorderDashStyle = ChartDashStyle.Solid;
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}
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else
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{
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histogramSeries = chartControl.Series[histogramSeriesName];
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histogramSeries.Points.Clear();
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}
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// Get data series minimum and maximum values
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double minValue = double.MaxValue;
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double maxValue = double.MinValue;
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int pointCount = 0;
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foreach (DataPoint dataPoint in chartControl.Series[dataSeriesName].Points)
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{
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// Process only non-empty data points
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if (!dataPoint.IsEmpty)
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{
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if (dataPoint.YValues[0] > maxValue)
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{
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maxValue = dataPoint.YValues[0];
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}
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if (dataPoint.YValues[0] < minValue)
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{
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minValue = dataPoint.YValues[0];
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}
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++pointCount;
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}
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}
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// Calculate interval width if it's not set
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if (double.IsNaN(this.SegmentIntervalWidth))
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{
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this.SegmentIntervalWidth = (maxValue - minValue) / SegmentIntervalNumber;
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this.SegmentIntervalWidth = RoundInterval(this.SegmentIntervalWidth);
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}
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// Round minimum and maximum values
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minValue = Math.Floor(minValue / this.SegmentIntervalWidth) * this.SegmentIntervalWidth;
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maxValue = Math.Ceiling(maxValue / this.SegmentIntervalWidth) * this.SegmentIntervalWidth;
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// Create histogram series points
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double currentPosition = minValue;
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for (currentPosition = minValue; currentPosition <= maxValue; currentPosition += this.SegmentIntervalWidth)
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{
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// Count all points from data series that are in current interval
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int count = 0;
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foreach (DataPoint dataPoint in chartControl.Series[dataSeriesName].Points)
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{
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if (!dataPoint.IsEmpty)
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{
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double endPosition = currentPosition + this.SegmentIntervalWidth;
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if (dataPoint.YValues[0] >= currentPosition &&
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dataPoint.YValues[0] < endPosition)
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{
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++count;
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}
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// Last segment includes point values on both segment boundaries
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else if (endPosition >= maxValue)
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{
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if (dataPoint.YValues[0] >= currentPosition &&
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dataPoint.YValues[0] <= endPosition)
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{
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++count;
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}
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}
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}
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}
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// Add data point into the histogram series
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//histogramSeries.Points.AddXY("", count);
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histogramSeries.Points.AddY( count);
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}
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histogramSeries.Sort(PointSortOrder.Descending);
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// Adjust series attributes
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histogramSeries["PointWidth"] = "1";
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// Adjust chart area
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ChartArea chartArea = chartControl.ChartAreas[histogramSeries.ChartArea];
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chartArea.AxisY.Title = "频数";
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//chartArea.AxisX.Minimum = minValue;
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//chartArea.AxisX.Maximum = maxValue;
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// Set axis interval based on the histogram class interval
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// and do not allow more than 10 labels on the axis.
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double axisInterval = this.SegmentIntervalWidth;
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while ((maxValue - minValue) / axisInterval > 10.0)
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{
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axisInterval *= 2.0;
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}
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chartArea.AxisX.Interval = axisInterval;
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// Set chart area secondary Y axis
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chartArea.AxisY2.Enabled = AxisEnabled.Auto;
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if (this.ShowPercentOnSecondaryYAxis)
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{
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chartArea.RecalculateAxesScale();
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chartArea.AxisY2.Enabled = AxisEnabled.True;
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chartArea.AxisY2.LabelStyle.Format = "P0";
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chartArea.AxisY2.MajorGrid.Enabled = false;
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chartArea.AxisY2.Title = "Percent of Total";
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chartArea.AxisY2.Minimum = 0;
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chartArea.AxisY2.Maximum = chartArea.AxisY.Maximum / (pointCount / 100.0);
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double minStep = (chartArea.AxisY2.Maximum > 20.0) ? 5.0 : 1.0;
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chartArea.AxisY2.Interval = Math.Ceiling((chartArea.AxisY2.Maximum / 5.0 / minStep)) * minStep;
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}
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}
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/// <summary>
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/// Helper method which rounds specified axsi interval.
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/// </summary>
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/// <param name="interval">Calculated axis interval.</param>
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/// <returns>Rounded axis interval.</returns>
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public double RoundInterval(double interval)
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{
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// If the interval is zero return error
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if (interval == 0.0)
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{
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throw (new ArgumentOutOfRangeException("interval", "Interval can not be zero."));
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}
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// If the real interval is > 1.0
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double step = -1;
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double tempValue = interval;
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while (tempValue > 1.0)
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{
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step++;
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tempValue = tempValue / 10.0;
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if (step > 1000)
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{
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throw (new InvalidOperationException("Auto interval error due to invalid point values or axis minimum/maximum."));
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}
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}
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// If the real interval is < 1.0
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tempValue = interval;
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if (tempValue < 1.0)
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{
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step = 0;
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}
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while (tempValue < 1.0)
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{
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step--;
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tempValue = tempValue * 10.0;
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if (step < -1000)
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{
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throw (new InvalidOperationException("Auto interval error due to invalid point values or axis minimum/maximum."));
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}
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}
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double tempDiff = interval / Math.Pow(10.0, step);
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if (tempDiff < 3.0)
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{
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tempDiff = 2.0;
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}
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else if (tempDiff < 7.0)
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{
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tempDiff = 5.0;
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}
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else
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{
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tempDiff = 10.0;
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}
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// Make a correction of the real interval
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return tempDiff * Math.Pow(10.0, step);
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}
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public void MakeParetoChart(Chart chart, string srcSeriesName, string destSeriesName)
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{
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// get name of the ChartAre of the source series
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string strChartArea = chart.Series[srcSeriesName].ChartArea;
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// ensure the source series is a column chart type
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chart.Series[srcSeriesName].ChartType = SeriesChartType.Column;
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// sort the data in the series to be by values in descending order
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chart.DataManipulator.Sort(PointSortOrder.Descending, srcSeriesName);
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// find the total of all points in the source series
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double total = 0.0;
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foreach (DataPoint pt in chart.Series[srcSeriesName].Points)
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total += pt.YValues[0];
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// set the max value on the primary axis to total
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chart.ChartAreas[strChartArea].AxisY.Maximum = total;
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// create the destination series and add it to the chart
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Series destSeries = new Series(destSeriesName);
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chart.Series.Add(destSeries);
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// ensure the destination series is a Line or Spline chart type
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destSeries.ChartType = SeriesChartType.Line;
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destSeries.BorderWidth = 3;
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// assign the series to the same chart area as the column chart
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destSeries.ChartArea = chart.Series[srcSeriesName].ChartArea;
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// assign this series to use the secondary axis and set it maximum to be 100%
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destSeries.YAxisType = AxisType.Secondary;
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chart.ChartAreas[strChartArea].AxisY2.Maximum = 100;
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// locale specific percentage format with no decimals
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chart.ChartAreas[strChartArea].AxisY2.LabelStyle.Format = "0.#";
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// turn off the end point values of the primary X axis
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chart.ChartAreas[strChartArea].AxisX.LabelStyle.IsEndLabelVisible = false;
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// for each point in the source series find % of total and assign to series
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double percentage = 0.0;
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foreach (DataPoint pt in chart.Series[srcSeriesName].Points)
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{
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percentage += (pt.YValues[0] / total * 100.0);
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//Chart1.Series["Default"].Points.AddXY(pt.XValue,Math.Round(percentage, 2));
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destSeries.Points.Add(Math.Round(percentage, 2));
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}
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}
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}
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