395 lines
14 KiB
C#
395 lines
14 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.Linq;
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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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/// 使用统一Y轴显示实时压力和压力设定值，便于数据对比
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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 = 3600; // 最多显示3600个数据点（1小时）
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private double _initialMinX = 0; // 记录初始最小X值
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private bool _isUserZooming = false; // 用户是否正在缩放
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private double _maxPressureValue = 0; // 记录最大压力值用于动态调整Y轴
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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 = OxyColor.FromRgb(180, 180, 180),
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PlotAreaBorderThickness = new OxyThickness(1.5),
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Padding = new OxyThickness(10, 10, 20, 10)
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};
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// 配置图例 - 放在图表外面顶部
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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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LegendPlacement = OxyPlot.Legends.LegendPlacement.Outside,
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LegendBackground = OxyColor.FromAColor(250, OxyColors.White),
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LegendBorder = OxyColor.FromRgb(200, 200, 200),
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LegendBorderThickness = 1,
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LegendPadding = 10,
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LegendMargin = 8,
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LegendSymbolLength = 30,
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LegendSymbolMargin = 10,
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LegendFontSize = 12,
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LegendItemSpacing = 20
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});
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// 配置X轴（时间轴 - 使用测试时间总秒数）
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var xAxis = new LinearAxis
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{
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Position = AxisPosition.Bottom,
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Title = "测试时间",
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TitleFontSize = 13,
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TitleFontWeight = OxyPlot.FontWeights.Bold,
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FontSize = 11,
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MajorGridlineStyle = LineStyle.Solid,
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MajorGridlineColor = OxyColor.FromRgb(220, 220, 220),
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MajorGridlineThickness = 1,
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MinorGridlineStyle = LineStyle.Dot,
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MinorGridlineColor = OxyColor.FromRgb(240, 240, 240),
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MinorGridlineThickness = 0.5,
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Minimum = 0,
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Maximum = 60,
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IsPanEnabled = true,
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IsZoomEnabled = true,
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// 格式化X轴标签为HH:MM:SS格式
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LabelFormatter = value =>
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{
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int totalSec = (int)value;
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int h = totalSec / 3600;
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int m = (totalSec % 3600) / 60;
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int s = totalSec % 60;
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return $"{h:D2}:{m:D2}:{s:D2}";
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}
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};
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_plotModel.Axes.Add(xAxis);
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// 配置Y轴（统一显示实时压力和压力设定值）
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var yAxis = 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 = 13,
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TitleFontWeight = OxyPlot.FontWeights.Bold,
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FontSize = 11,
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MajorGridlineStyle = LineStyle.Solid,
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MajorGridlineColor = OxyColor.FromRgb(220, 220, 220),
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MajorGridlineThickness = 1,
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MinorGridlineStyle = LineStyle.Dot,
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MinorGridlineColor = OxyColor.FromRgb(240, 240, 240),
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MinorGridlineThickness = 0.5,
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StringFormat = "F2",
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Minimum = 0,
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Maximum = 10, // 初始最大值，会动态调整
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Key = "YAxis",
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IsPanEnabled = true,
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IsZoomEnabled = true
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};
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_plotModel.Axes.Add(yAxis);
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// 添加实时压力曲线 - 使用蓝色实线
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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 = OxyColor.FromRgb(30, 144, 255), // 道奇蓝
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StrokeThickness = 2.5,
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MarkerType = MarkerType.Circle,
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MarkerSize = 5,
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MarkerFill = OxyColor.FromRgb(30, 144, 255),
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MarkerStroke = OxyColors.White,
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MarkerStrokeThickness = 1.5,
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LineStyle = LineStyle.Solid,
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YAxisKey = "YAxis"
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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 - 使用红色虚线
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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 = OxyColor.FromRgb(220, 20, 60), // 深红色
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StrokeThickness = 2.5,
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MarkerType = MarkerType.Square,
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MarkerSize = 5,
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MarkerFill = OxyColor.FromRgb(220, 20, 60),
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MarkerStroke = OxyColors.White,
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MarkerStrokeThickness = 1.5,
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LineStyle = LineStyle.Dash,
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YAxisKey = "YAxis"
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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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// 监听鼠标事件，检测用户交互（缩放和平移）
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_plotView.MouseDown += (s, e) =>
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{
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_isUserZooming = true;
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};
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_plotView.MouseWheel += (s, e) =>
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{
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_isUserZooming = true;
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};
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// 添加双击重置功能
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_plotView.MouseDoubleClick += (s, e) =>
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{
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if (e.Button == System.Windows.Forms.MouseButtons.Left)
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{
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ResetZoom();
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}
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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="totalSeconds">测试时间（总秒数）</param>
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public void AddDataPoint(double pressure, double pressureSetValue, int totalSeconds)
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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（使用测试时间总秒数作为X轴值）
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_pressureData.Add(new DataPoint(totalSeconds, pressure));
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_pressureSetData.Add(new DataPoint(totalSeconds, pressureSetValue));
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// 记录初始最小X值（第一个数据点的时间）
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if (_pressureData.Count == 1)
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{
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_initialMinX = totalSeconds;
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}
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// 更新最大压力值（用于动态调整Y轴）
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double currentMaxPressure = Math.Max(pressure, pressureSetValue);
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if (currentMaxPressure > _maxPressureValue)
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{
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_maxPressureValue = currentMaxPressure;
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}
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// 限制数据点数量，保持图表流畅（保留最近3600个点）
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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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// 更新初始最小X值
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if (_pressureData.Count > 0)
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{
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_initialMinX = _pressureData[0].X;
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}
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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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// 只有在非用户缩放状态下才自动调整轴范围
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if (!_isUserZooming)
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{
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// 调整X轴范围
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if (_pressureData.Count > 0)
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{
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var xAxis = _plotModel.Axes.FirstOrDefault(a => a.Position == AxisPosition.Bottom);
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if (xAxis != null)
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{
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// 始终从初始时间开始显示
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double minX = _initialMinX;
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double maxX = _pressureData.Max(p => p.X);
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xAxis.Minimum = minX;
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xAxis.Maximum = maxX + 5; // 留一点余量
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xAxis.Reset();
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}
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}
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// 动态调整Y轴范围 - 比实际最大值大20%，确保曲线美观
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var yAxis = _plotModel.Axes.FirstOrDefault(a => a.Key == "YAxis");
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if (yAxis != null && _maxPressureValue > 0)
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{
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// Y轴最大值设置为实际最大值的1.2倍，最小为10
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double yMax = Math.Max(_maxPressureValue * 1.2, 10);
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// 向上取整到合适的刻度
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if (yMax < 10)
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yMax = Math.Ceiling(yMax);
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else if (yMax < 100)
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yMax = Math.Ceiling(yMax / 5) * 5;
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else
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yMax = Math.Ceiling(yMax / 10) * 10;
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yAxis.Minimum = 0;
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yAxis.Maximum = yMax;
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yAxis.Reset();
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}
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}
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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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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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// 重置X轴范围
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var xAxis = _plotModel?.Axes.FirstOrDefault(a => a.Position == AxisPosition.Bottom);
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if (xAxis != null)
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{
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xAxis.Minimum = 0;
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xAxis.Maximum = 60;
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xAxis.Reset();
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}
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// 重置Y轴范围
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var yAxis = _plotModel?.Axes.FirstOrDefault(a => a.Key == "YAxis");
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if (yAxis != null)
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{
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yAxis.Minimum = 0;
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yAxis.Maximum = 10;
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yAxis.Reset();
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}
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// 重置初始最小X值、用户缩放状态和最大压力值
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_initialMinX = 0;
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_isUserZooming = false;
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_maxPressureValue = 0;
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_plotModel?.InvalidatePlot(true);
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}
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/// <summary>
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/// 重置缩放状态，恢复自动跟随模式
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/// </summary>
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public void ResetZoom()
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{
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_isUserZooming = false;
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if (_pressureData.Count > 0)
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{
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// 重置X轴
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var xAxis = _plotModel?.Axes.FirstOrDefault(a => a.Position == AxisPosition.Bottom);
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if (xAxis != null)
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{
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double minX = _initialMinX;
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double maxX = _pressureData.Max(p => p.X);
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xAxis.Minimum = minX;
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xAxis.Maximum = maxX + 5;
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xAxis.Reset();
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}
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// 重置Y轴
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var yAxis = _plotModel?.Axes.FirstOrDefault(a => a.Key == "YAxis");
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if (yAxis != null && _maxPressureValue > 0)
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{
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double yMax = Math.Max(_maxPressureValue * 1.2, 10);
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if (yMax < 10)
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yMax = Math.Ceiling(yMax);
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else if (yMax < 100)
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yMax = Math.Ceiling(yMax / 5) * 5;
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else
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yMax = Math.Ceiling(yMax / 10) * 10;
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yAxis.Minimum = 0;
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yAxis.Maximum = yMax;
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yAxis.Reset();
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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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/// 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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// 可以根据模式调整显示样式（如果需要）
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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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