254 lines
8.6 KiB
C#
254 lines
8.6 KiB
C#
using OxyPlot;
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using OxyPlot.Axes;
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using OxyPlot.Series;
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using OxyPlot.WindowsForms;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Windows.Forms;
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namespace 全自动水压检测仪
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{
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/// <summary>
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/// 图表管理器 - 负责实时曲线图的创建和数据更新
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/// 第一Y轴：实时压力（地址3130）
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/// 第二Y轴：压力设定值（地址2400，对应"压力设置(PSI)"）
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/// </summary>
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public class ChartManager
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{
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private PlotView _plotView;
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private PlotModel _plotModel;
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private LineSeries _pressureSeries; // 实时压力值（地址3130）
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private LineSeries _pressureSetSeries; // 压力设定值（地址2400）
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private List<DataPoint> _pressureData;
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private List<DataPoint> _pressureSetData;
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private const int MAX_DATA_POINTS = 60; // 最多显示60个数据点
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private int _dataPointIndex = 0;
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/// <summary>
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/// 初始化图表并添加到指定面板
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/// </summary>
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public void InitializeChart(Control targetPanel)
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{
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if (targetPanel == null)
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throw new ArgumentNullException(nameof(targetPanel));
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// 清除占位文字
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targetPanel.Text = null;
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// 初始化数据集合
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_pressureData = new List<DataPoint>();
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_pressureSetData = new List<DataPoint>();
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// 创建PlotModel
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_plotModel = new PlotModel
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{
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Title = "",
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Background = OxyColors.White,
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PlotAreaBorderColor = OxyColors.Gray
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};
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// 配置图例
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_plotModel.Legends.Add(new OxyPlot.Legends.Legend
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{
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LegendPosition = OxyPlot.Legends.LegendPosition.TopCenter,
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LegendOrientation = OxyPlot.Legends.LegendOrientation.Horizontal
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});
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// 配置X轴（时间轴 - 使用数据点索引）
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var xAxis = new LinearAxis
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{
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Position = AxisPosition.Bottom,
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Title = "时间",
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TitleFontSize = 12,
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FontSize = 10,
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MajorGridlineStyle = LineStyle.Solid,
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MajorGridlineColor = OxyColor.FromRgb(230, 230, 230),
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MinorGridlineStyle = LineStyle.Dot,
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MinorGridlineColor = OxyColor.FromRgb(240, 240, 240),
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StringFormat = "0",
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Minimum = 0,
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Maximum = MAX_DATA_POINTS
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};
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_plotModel.Axes.Add(xAxis);
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// 配置左Y轴（实时压力）
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var yAxisLeft = new LinearAxis
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{
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Position = AxisPosition.Left,
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Title = "压力 (PSI)",
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TitleFontSize = 12,
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FontSize = 10,
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TitleColor = OxyColors.Blue,
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TextColor = OxyColors.Blue,
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MajorGridlineStyle = LineStyle.Solid,
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MajorGridlineColor = OxyColor.FromRgb(230, 230, 230),
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MinorGridlineStyle = LineStyle.Dot,
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MinorGridlineColor = OxyColor.FromRgb(240, 240, 240),
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StringFormat = "F2",
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Minimum = 0,
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Key = "LeftAxis"
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};
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_plotModel.Axes.Add(yAxisLeft);
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// 配置右Y轴（压力设定值）
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var yAxisRight = new LinearAxis
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{
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Position = AxisPosition.Right,
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Title = "压力设定值 (PSI)",
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TitleFontSize = 12,
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FontSize = 10,
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TitleColor = OxyColors.Red,
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TextColor = OxyColors.Red,
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MajorGridlineStyle = LineStyle.None,
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StringFormat = "F2",
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Minimum = 0,
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Key = "RightAxis"
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};
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_plotModel.Axes.Add(yAxisRight);
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// 添加实时压力曲线
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_pressureSeries = new LineSeries
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{
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Title = "实时压力",
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Color = OxyColors.Blue,
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StrokeThickness = 2,
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MarkerType = MarkerType.Circle,
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MarkerSize = 4,
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MarkerFill = OxyColors.Blue,
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YAxisKey = "LeftAxis"
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};
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_plotModel.Series.Add(_pressureSeries);
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// 添加压力设定值曲线
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_pressureSetSeries = new LineSeries
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{
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Title = "压力设定值",
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Color = OxyColors.Red,
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StrokeThickness = 2,
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MarkerType = MarkerType.Diamond,
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MarkerSize = 4,
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MarkerFill = OxyColors.Red,
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YAxisKey = "RightAxis"
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};
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_plotModel.Series.Add(_pressureSetSeries);
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// 创建PlotView控件
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_plotView = new PlotView
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{
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Model = _plotModel,
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Dock = DockStyle.Fill,
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BackColor = System.Drawing.Color.White
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};
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// 添加到目标面板
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targetPanel.Controls.Add(_plotView);
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}
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/// <summary>
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/// 添加新的数据点
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/// </summary>
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/// <param name="pressure">实时压力值</param>
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/// <param name="pressureSetValue">压力设定值（来自"压力设置(PSI)"，地址2400）</param>
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/// <param name="time">时间标签（可选，默认使用当前时间）</param>
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public void AddDataPoint(double pressure, double pressureSetValue, string time = null)
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{
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if (_pressureSeries == null || _pressureSetSeries == null || _plotModel == null)
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return;
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// 添加数据点（使用索引作为X轴值）
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_pressureData.Add(new DataPoint(_dataPointIndex, pressure));
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_pressureSetData.Add(new DataPoint(_dataPointIndex, pressureSetValue));
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_dataPointIndex++;
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// 限制数据点数量，保持图表流畅
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if (_pressureData.Count > MAX_DATA_POINTS)
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{
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_pressureData.RemoveAt(0);
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_pressureSetData.RemoveAt(0);
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// 重新索引数据点
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for (int i = 0; i < _pressureData.Count; i++)
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{
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_pressureData[i] = new DataPoint(i, _pressureData[i].Y);
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_pressureSetData[i] = new DataPoint(i, _pressureSetData[i].Y);
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}
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_dataPointIndex = _pressureData.Count;
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}
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// 更新系列数据
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_pressureSeries.Points.Clear();
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_pressureSeries.Points.AddRange(_pressureData);
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_pressureSetSeries.Points.Clear();
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_pressureSetSeries.Points.AddRange(_pressureSetData);
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// 刷新图表
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_plotModel.InvalidatePlot(true);
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}
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/// <summary>
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/// 清除所有数据
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/// </summary>
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public void ClearData()
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{
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_pressureData?.Clear();
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_pressureSetData?.Clear();
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_dataPointIndex = 0;
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if (_pressureSeries != null)
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{
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_pressureSeries.Points.Clear();
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}
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if (_pressureSetSeries != null)
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{
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_pressureSetSeries.Points.Clear();
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}
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_plotModel?.InvalidatePlot(true);
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}
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/// <summary>
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/// 更新图表配置（例如切换温度模式时）
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/// </summary>
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/// <param name="isHighTemperatureMode">是否为高温模式</param>
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public void UpdateChartMode(bool isHighTemperatureMode)
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{
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if (_plotModel == null || _plotModel.Series.Count < 2)
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return;
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// 压力设定值曲线标题保持不变
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if (_pressureSetSeries != null)
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{
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_pressureSetSeries.Title = "压力设定值";
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}
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// 可以根据模式调整Y轴范围（压力设定值范围）
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foreach (var axis in _plotModel.Axes)
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{
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if (axis.Key == "RightAxis")
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{
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axis.Maximum = 10; // 压力设定值通常不超过10MPa
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break;
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}
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}
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_plotModel.InvalidatePlot(true);
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}
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/// <summary>
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/// 释放资源
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/// </summary>
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public void Dispose()
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{
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_plotView?.Dispose();
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_plotModel = null;
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_pressureSeries = null;
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_pressureSetSeries = null;
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_pressureData = null;
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_pressureSetData = null;
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}
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}
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}
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