472 lines
22 KiB
C#
472 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.SqlClient;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Linq;
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using System.Windows.Forms;
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namespace MesWork.Pages
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{
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/// <summary>
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/// 统计分析页面 — 残留量趋势分析 + 统计指标计算 + 明细数据
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/// 使用 GDI+ 绘制趋势折线图（含平均线 + 数据标签）
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/// </summary>
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public partial class UC_Statistics : UserControl
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{
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/// <summary>图表数据缓存</summary>
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private List<(DateTime time, double value, string label)> _chartData = new List<(DateTime, double, string)>();
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/// <summary>平均值（用于绘制参考线）</summary>
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private double _avgValue = 0;
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// ─── 配色常量 ───
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private static readonly Color CLR_PRIMARY = Color.FromArgb(74, 144, 217);
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private static readonly Color CLR_PRIMARY_DARK = Color.FromArgb(30, 58, 95);
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private static readonly Color CLR_AVG_LINE = Color.FromArgb(245, 158, 11); // 橙色平均线
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private static readonly Color CLR_GRID = Color.FromArgb(236, 239, 243);
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private static readonly Color CLR_TEXT = Color.FromArgb(55, 65, 81);
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private static readonly Color CLR_TEXT_LIGHT = Color.FromArgb(107, 114, 128);
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private static readonly Color CLR_DOT_FILL = Color.FromArgb(74, 144, 217);
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private static readonly Color CLR_CARD_BG = Color.FromArgb(248, 250, 252);
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public UC_Statistics()
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{
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InitializeComponent();
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InitColumns();
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dtp_Start.Value = DateTime.Today.AddDays(-30);
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dtp_End.Value = DateTime.Today;
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// 订阅图表区域绘制
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pnl_Chart.Paint += pnl_Chart_Paint;
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pnl_Chart.Resize += (s, ev) => pnl_Chart.Invalidate();
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// 为筛选框加占位提示
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SetHint(txt_ModelNo, "机型号筛选...");
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SetHint(txt_OrderNo, "订单号筛选...");
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}
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private void SetHint(TextBox txt, string hint)
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{
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txt.Tag = hint;
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txt.Text = hint;
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txt.ForeColor = Color.FromArgb(156, 163, 175);
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txt.GotFocus += (s, e) => { if (txt.Text == hint) { txt.Text = ""; txt.ForeColor = CLR_PRIMARY_DARK; } };
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txt.LostFocus += (s, e) => { if (string.IsNullOrWhiteSpace(txt.Text)) { txt.Text = hint; txt.ForeColor = Color.FromArgb(156, 163, 175); } };
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}
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private string GetHintValue(TextBox txt)
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{
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return txt.Text == txt.Tag?.ToString() ? "" : txt.Text.Trim();
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}
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/// <summary>
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/// 预设明细表格列
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/// </summary>
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private void InitColumns()
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{
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dgv_Data.AutoGenerateColumns = false;
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dgv_Data.Columns.Clear();
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "序号", HeaderText = "序号", Width = 50, FillWeight = 30 });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "ID", HeaderText = "ID", DataPropertyName = "ID", Visible = false });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "测试时间", HeaderText = "检测时间", DataPropertyName = "测试时间", FillWeight = 100 });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "发动机号", HeaderText = "工件编号", DataPropertyName = "发动机号", FillWeight = 100 });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "订单号", HeaderText = "订单号", DataPropertyName = "订单号", FillWeight = 80 });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "机型号", HeaderText = "机型号", DataPropertyName = "机型号", FillWeight = 70 });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "残留量", HeaderText = "机油残留(mg)", DataPropertyName = "残留量", FillWeight = 80 });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "设备编号", HeaderText = "设备编号", DataPropertyName = "设备编号", FillWeight = 60 });
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dgv_Data.Columns.Add(new DataGridViewTextBoxColumn { Name = "操作员", HeaderText = "操作员", DataPropertyName = "操作员", FillWeight = 60 });
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}
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/// <summary>
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/// 统计分析按钮
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/// </summary>
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private void btn_Analyze_Click(object sender, EventArgs e)
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{
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try
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{
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var pageCountParam = new SqlParameter("@PageCount", SqlDbType.Int) { Direction = ParameterDirection.Output };
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var itemCountParam = new SqlParameter("@ItemCount", SqlDbType.Int) { Direction = ParameterDirection.Output };
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var parms = new SqlParameter[]
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{
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new SqlParameter("@发动机号", ""),
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new SqlParameter("@机型号", GetHintValue(txt_ModelNo)),
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new SqlParameter("@工单号", GetHintValue(txt_OrderNo)),
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new SqlParameter("@开始时间", dtp_Start.Value.ToString("yyyy-MM-dd")),
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new SqlParameter("@结束时间", dtp_End.Value.AddDays(1).ToString("yyyy-MM-dd")),
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new SqlParameter("@PageCurrent", 1),
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new SqlParameter("@PageSize", 9999),
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pageCountParam,
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itemCountParam
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};
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SqlOperation.ExecuteStoredProcedure("称重记录_分页查询", parms, out DataTable dt, out string err);
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if (dt != null && dt.Rows.Count > 0)
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{
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dgv_Data.DataSource = dt;
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FillRowNumbers();
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CalculateStatistics(dt);
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BuildChartData(dt);
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pnl_Chart.Invalidate();
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}
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else
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{
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_chartData.Clear();
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ClearStatLabels();
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pnl_Chart.Invalidate();
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MessageBox.Show("查询范围内无数据", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
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}
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}
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catch (Exception ex)
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{
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MessageBox.Show($"查询失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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}
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/// <summary>
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/// 填充表格序号列（与图表数据点编号对应）
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/// 图表按时间升序排列，表格按ID降序，序号在数据排序后重新映射
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/// </summary>
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private void FillRowNumbers()
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{
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// 表格数据按ID降序排列（最新在前），序号直接按行号赋值
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for (int i = 0; i < dgv_Data.Rows.Count; i++)
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{
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dgv_Data.Rows[i].Cells["序号"].Value = i + 1;
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}
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}
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/// <summary>
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/// 从DataTable构建图表数据（确保所有行都被处理）
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/// </summary>
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private void BuildChartData(DataTable dt)
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{
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_chartData.Clear();
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// 查找时间列和数值列
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string timeCol = dt.Columns.Contains("进站时间") ? "进站时间" :
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dt.Columns.Contains("测试时间") ? "测试时间" : null;
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string valCol = dt.Columns.Contains("残油量") ? "残油量" :
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dt.Columns.Contains("残留量") ? "残留量" :
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dt.Columns.Contains("放油量") ? "放油量" : null;
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string labelCol = dt.Columns.Contains("发动机号") ? "发动机号" : null;
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if (timeCol == null || valCol == null) return;
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foreach (DataRow row in dt.Rows)
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{
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DateTime t;
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double v;
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string lbl = labelCol != null ? row[labelCol]?.ToString() ?? "" : "";
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// 时间解析：如果失败则使用当前时间递增
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if (!DateTime.TryParse(row[timeCol]?.ToString(), out t))
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t = DateTime.Now;
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// 数值解析：如果失败或为空，默认为0（也是有效数据点）
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object rawVal = row[valCol];
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if (rawVal == null || rawVal == DBNull.Value || !double.TryParse(rawVal.ToString(), out v))
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v = 0;
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_chartData.Add((t, v, lbl));
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}
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// 不排序，保持DataTable原始行顺序（与表格序号一致）
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}
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/// <summary>
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/// GDI+ 绘制折线图（增强版）
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/// </summary>
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private void pnl_Chart_Paint(object sender, PaintEventArgs e)
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{
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var g = e.Graphics;
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g.SmoothingMode = SmoothingMode.AntiAlias;
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g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
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var rect = pnl_Chart.ClientRectangle;
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int padL = 80, padR = 40, padT = 50, padB = 60;
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int chartW = rect.Width - padL - padR;
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int chartH = rect.Height - padT - padB;
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if (chartW < 50 || chartH < 50) return;
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// 绘制背景
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using (var bgBrush = new SolidBrush(Color.White))
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g.FillRectangle(bgBrush, rect);
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// 空数据提示
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if (_chartData.Count == 0)
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{
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using (var font = new Font("微软雅黑", 14F))
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using (var brush = new SolidBrush(Color.FromArgb(156, 163, 175)))
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{
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var msg = "📊 设置筛选条件后点击「统计分析」查看趋势图";
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var sz = g.MeasureString(msg, font);
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g.DrawString(msg, font, brush, (rect.Width - sz.Width) / 2, (rect.Height - sz.Height) / 2);
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}
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return;
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}
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// 计算数据范围
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double minVal = _chartData.Min(d => d.value);
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double maxVal = _chartData.Max(d => d.value);
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double range = maxVal - minVal;
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if (range < 0.001) { range = Math.Max(Math.Abs(maxVal) * 0.2, 1); }
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minVal -= range * 0.12;
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maxVal += range * 0.12;
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if (minVal < 0 && _chartData.Min(d => d.value) >= 0) minVal = 0; // 不让Y轴负数（如果原始数据非负）
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int totalPts = _chartData.Count;
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// ─── 绘制网格线和Y轴标签 ───
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using (var gridPen = new Pen(CLR_GRID, 1) { DashStyle = DashStyle.Dot })
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using (var axisFont = new Font("微软雅黑", 9F))
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using (var axisBrush = new SolidBrush(CLR_TEXT_LIGHT))
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using (var axisPen = new Pen(Color.FromArgb(200, 210, 220), 1))
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{
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// Y轴线
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g.DrawLine(axisPen, padL, padT, padL, padT + chartH);
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// X轴线
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g.DrawLine(axisPen, padL, padT + chartH, padL + chartW, padT + chartH);
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for (int i = 0; i <= 5; i++)
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{
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int y = padT + chartH - (int)(chartH * i / 5.0);
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if (i > 0) g.DrawLine(gridPen, padL + 1, y, padL + chartW, y);
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double val = minVal + (maxVal - minVal) * i / 5.0;
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string valStr = val.ToString("F2");
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var sz = g.MeasureString(valStr, axisFont);
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g.DrawString(valStr, axisFont, axisBrush, padL - sz.Width - 6, y - sz.Height / 2);
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}
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// X轴标签 — 序号均匀排布（1, 2, 3...）
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// 计算合适的标签间隔，避免过于密集
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int maxLabels = Math.Max(1, chartW / 40); // 每个标签至少40px空间
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int labelStep = Math.Max(1, (totalPts - 1) / Math.Max(maxLabels - 1, 1));
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// 如果数据点少于maxLabels，每个都显示
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if (totalPts <= maxLabels) labelStep = 1;
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for (int i = 0; i < totalPts; i += labelStep)
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{
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float xPos = totalPts == 1 ? padL + chartW / 2f
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: padL + (float)chartW * i / (totalPts - 1);
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string label = (i + 1).ToString();
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var sz = g.MeasureString(label, axisFont);
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g.DrawString(label, axisFont, axisBrush, xPos - sz.Width / 2, padT + chartH + 8);
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g.DrawLine(axisPen, (int)xPos, padT + chartH, (int)xPos, padT + chartH + 5);
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}
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// 确保最后一个序号显示
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if (totalPts > 1 && (totalPts - 1) % labelStep != 0)
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{
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float lastX = padL + chartW;
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string lastLabel = totalPts.ToString();
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var lastSz = g.MeasureString(lastLabel, axisFont);
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g.DrawString(lastLabel, axisFont, axisBrush, lastX - lastSz.Width / 2, padT + chartH + 8);
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g.DrawLine(axisPen, (int)lastX, padT + chartH, (int)lastX, padT + chartH + 5);
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}
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}
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// ─── 计算所有数据点坐标（X轴按序号均匀排布）───
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var points = new PointF[totalPts];
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for (int i = 0; i < totalPts; i++)
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{
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float x = totalPts == 1 ? padL + chartW / 2f
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: padL + (float)chartW * i / (totalPts - 1);
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float y = padT + chartH - (float)(chartH * ((_chartData[i].value - minVal) / (maxVal - minVal)));
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points[i] = new PointF(x, y);
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}
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// ─── 渐变填充区域 ───
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if (points.Length >= 2)
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{
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using (var fillPath = new GraphicsPath())
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{
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fillPath.AddLines(points);
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fillPath.AddLine(points.Last(), new PointF(points.Last().X, padT + chartH));
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fillPath.AddLine(new PointF(points.Last().X, padT + chartH), new PointF(points.First().X, padT + chartH));
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fillPath.CloseFigure();
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using (var fillBrush = new LinearGradientBrush(
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new Point(0, padT), new Point(0, padT + chartH),
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Color.FromArgb(50, 74, 144, 217), Color.FromArgb(3, 74, 144, 217)))
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{
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g.FillPath(fillBrush, fillPath);
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}
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}
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// 折线（粗线+阴影效果）
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using (var shadowPen = new Pen(Color.FromArgb(30, 74, 144, 217), 5f))
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{
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shadowPen.LineJoin = LineJoin.Round;
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g.DrawLines(shadowPen, points);
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}
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using (var linePen = new Pen(CLR_PRIMARY, 2.5f))
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{
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linePen.LineJoin = LineJoin.Round;
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g.DrawLines(linePen, points);
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}
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}
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// ─── 平均线（红色虚线 + 箭头 + 标签）───
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if (_chartData.Count > 0)
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{
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float avgY = padT + chartH - (float)(chartH * ((_avgValue - minVal) / (maxVal - minVal)));
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if (avgY >= padT && avgY <= padT + chartH)
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{
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using (var avgPen = new Pen(CLR_AVG_LINE, 1.8f) { DashStyle = DashStyle.Dash })
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{
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g.DrawLine(avgPen, padL, avgY, padL + chartW, avgY);
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}
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// 平均线标签（右侧带箭头标识）
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using (var avgFont = new Font("微软雅黑", 9F, FontStyle.Bold))
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using (var avgBrush = new SolidBrush(CLR_AVG_LINE))
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{
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string avgText = $"▶ 平均 {_avgValue:F2}";
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var sz = g.MeasureString(avgText, avgFont);
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// 背景
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float lblX = padL + chartW - sz.Width - 4;
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float lblY = avgY - sz.Height - 3;
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using (var bgBrush = new SolidBrush(Color.FromArgb(220, 255, 255, 255)))
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g.FillRectangle(bgBrush, lblX - 3, lblY, sz.Width + 6, sz.Height + 2);
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g.DrawString(avgText, avgFont, avgBrush, lblX, lblY);
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// 小三角箭头指向线
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var arrowPts = new PointF[] {
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new PointF(padL + chartW + 2, avgY),
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new PointF(padL + chartW + 10, avgY - 5),
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new PointF(padL + chartW + 10, avgY + 5)
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};
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g.FillPolygon(avgBrush, arrowPts);
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}
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}
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}
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// ─── 数据点（带光晕效果）───
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for (int i = 0; i < points.Length; i++)
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{
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var pt = points[i];
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// 光晕
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using (var glowBrush = new SolidBrush(Color.FromArgb(40, 74, 144, 217)))
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g.FillEllipse(glowBrush, pt.X - 8, pt.Y - 8, 16, 16);
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// 白色底
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g.FillEllipse(Brushes.White, pt.X - 5, pt.Y - 5, 10, 10);
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// 蓝色圆点
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using (var dotBrush = new SolidBrush(CLR_DOT_FILL))
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g.FillEllipse(dotBrush, pt.X - 4, pt.Y - 4, 8, 8);
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// 数值标签（只有当数据点不太密时显示）
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if (_chartData.Count <= 15)
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{
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using (var valFont = new Font("微软雅黑", 8F))
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using (var valBrush = new SolidBrush(CLR_PRIMARY_DARK))
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{
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string valText = _chartData[i].value.ToString("F1");
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var sz = g.MeasureString(valText, valFont);
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g.DrawString(valText, valFont, valBrush, pt.X - sz.Width / 2, pt.Y - sz.Height - 6);
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}
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}
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}
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// ─── 图表右下角水印 ───
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using (var wmFont = new Font("微软雅黑", 8F))
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using (var wmBrush = new SolidBrush(Color.FromArgb(80, 156, 163, 175)))
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{
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string wm = $"共 {_chartData.Count} 个样本";
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var sz = g.MeasureString(wm, wmFont);
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g.DrawString(wm, wmFont, wmBrush, padL + chartW - sz.Width, padT + 4);
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}
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}
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/// <summary>
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/// 计算统计指标（基于残留量列）
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/// </summary>
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private void CalculateStatistics(DataTable dt)
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{
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var values = new List<double>();
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string colName = dt.Columns.Contains("残油量") ? "残油量" :
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dt.Columns.Contains("残留量") ? "残留量" : null;
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if (colName == null)
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{
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foreach (DataColumn col in dt.Columns)
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{
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if (col.ColumnName.Contains("残留") || col.ColumnName.Contains("残油") || col.ColumnName.Contains("重量"))
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{
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colName = col.ColumnName;
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break;
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}
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}
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}
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if (colName != null)
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{
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foreach (DataRow row in dt.Rows)
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{
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object rawVal = row[colName];
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if (rawVal != null && rawVal != DBNull.Value && double.TryParse(rawVal.ToString(), out double v))
|
||
values.Add(v);
|
||
else
|
||
values.Add(0); // 空值也算0，确保样本数一致
|
||
}
|
||
}
|
||
|
||
if (values.Count == 0)
|
||
{
|
||
ClearStatLabels();
|
||
return;
|
||
}
|
||
|
||
values.Sort();
|
||
double max = values.Max();
|
||
double min = values.Min();
|
||
double avg = values.Average();
|
||
_avgValue = avg; // 保存平均值用于绘图
|
||
double median = values.Count % 2 == 0
|
||
? (values[values.Count / 2 - 1] + values[values.Count / 2]) / 2.0
|
||
: values[values.Count / 2];
|
||
double rangeVal = max - min;
|
||
double variance = values.Sum(v => Math.Pow(v - avg, 2)) / values.Count;
|
||
double stdDev = Math.Sqrt(variance);
|
||
|
||
// 更新统计指标标签
|
||
lbl_StatMax.Text = $"最大值 {max:F4}";
|
||
lbl_StatMin.Text = $"最小值 {min:F4}";
|
||
lbl_StatAvg.Text = $"平均值 {avg:F4}";
|
||
lbl_StatMedian.Text = $"中位数 {median:F4}";
|
||
lbl_StatRange.Text = $"极差 {rangeVal:F4}";
|
||
lbl_StatVariance.Text = $"方差 {variance:F4}";
|
||
lbl_StatStdDev.Text = $"标准差 {stdDev:F4}";
|
||
lbl_StatCount.Text = $"样本数 {values.Count}";
|
||
}
|
||
|
||
private void ClearStatLabels()
|
||
{
|
||
lbl_StatMax.Text = "最大值 —";
|
||
lbl_StatMin.Text = "最小值 —";
|
||
lbl_StatAvg.Text = "平均值 —";
|
||
lbl_StatMedian.Text = "中位数 —";
|
||
lbl_StatRange.Text = "极差 —";
|
||
lbl_StatVariance.Text = "方差 —";
|
||
lbl_StatStdDev.Text = "标准差 —";
|
||
lbl_StatCount.Text = "样本数 0";
|
||
}
|
||
|
||
/// <summary>
|
||
/// 导出数据
|
||
/// </summary>
|
||
private void btn_Export_Click(object sender, EventArgs e)
|
||
{
|
||
CrudHelper.ExportToExcel("统计分析", "统计分析", () =>
|
||
{
|
||
var (pageCountParam, itemCountParam) = PagerBar.CreateOutputParams();
|
||
var parms = new SqlParameter[]
|
||
{
|
||
new SqlParameter("@发动机号", ""),
|
||
new SqlParameter("@机型号", GetHintValue(txt_ModelNo)),
|
||
new SqlParameter("@工单号", GetHintValue(txt_OrderNo)),
|
||
new SqlParameter("@开始时间", dtp_Start.Value.ToString("yyyy-MM-dd")),
|
||
new SqlParameter("@结束时间", dtp_End.Value.AddDays(1).ToString("yyyy-MM-dd")),
|
||
new SqlParameter("@PageCurrent", 1),
|
||
new SqlParameter("@PageSize", 9999999),
|
||
pageCountParam, itemCountParam
|
||
};
|
||
SqlOperation.ExecuteStoredProcedure("称重记录_分页查询", parms, out DataTable dt, out string err);
|
||
return dt;
|
||
}, dgv_Data.Rows.Count > 0);
|
||
}
|
||
}
|
||
}
|