update server

2026-07-30 11:12:31 +08:00
commit 4312cb878c
99 changed files with 24034 additions and 0 deletions
@@ -0,0 +1,153 @@
+const fs = require("node:fs");
+const path = require("node:path");
+const { parse } = require("csv-parse/sync");
+const { ChartJSNodeCanvas } = require("chartjs-node-canvas");
+const { createCanvas, loadImage, registerFont } = require("canvas");
+
+const CHART_WIDTH = 1400;
+const CHART_HEIGHT = 540;
+const CHINESE_FONT_PATH = "C:\\Windows\\Fonts\\msyh.ttc";
+
+if (fs.existsSync(CHINESE_FONT_PATH)) {
+  registerFont(CHINESE_FONT_PATH, { family: "Microsoft YaHei" });
+}
+
+const chartCanvas = new ChartJSNodeCanvas({
+  width: CHART_WIDTH,
+  height: CHART_HEIGHT,
+  backgroundColour: "white"
+});
+
+async function renderTimeSeries(points, options) {
+  return chartCanvas.renderToBuffer({
+    type: "line",
+    data: {
+      datasets: [{
+        data: points.map((row) => ({ x: row.t, y: row[options.column] })),
+        borderColor: options.color,
+        borderWidth: 2,
+        pointRadius: 0,
+        stepped: options.stepped,
+        tension: 0,
+        fill: false
+      }]
+    },
+    options: {
+      responsive: false,
+      animation: false,
+      parsing: false,
+      layout: { padding: { top: 14, right: 34, bottom: 8, left: 24 } },
+      plugins: {
+        legend: { display: false },
+        title: {
+          display: true,
+          text: options.title,
+          color: "#222222",
+          font: { family: "Microsoft YaHei", size: 21, weight: "normal" },
+          padding: { bottom: 10 }
+        }
+      },
+      scales: {
+        x: {
+          type: "linear",
+          min: options.xMin,
+          max: options.xMax,
+          grid: { color: "#d8d8d8", lineWidth: 1 },
+          border: { color: "#333333", width: 1.5 },
+          ticks: { color: "#333333", font: { family: "Microsoft YaHei", size: 14 } },
+          title: {
+            display: true,
+            text: "时间 (s)",
+            color: "#333333",
+            font: { family: "Microsoft YaHei", size: 17 }
+          }
+        },
+        y: {
+          min: 0,
+          max: options.yMax,
+          grid: { color: "#d8d8d8", lineWidth: 1 },
+          border: { color: "#333333", width: 1.5 },
+          ticks: { color: "#333333", font: { family: "Microsoft YaHei", size: 14 } },
+          title: {
+            display: true,
+            text: options.yLabel,
+            color: "#333333",
+            font: { family: "Microsoft YaHei", size: 17 }
+          }
+        }
+      }
+    }
+  });
+}
+
+async function renderCombinedPlot(points, outputPath) {
+  const minimumTime = Math.min(...points.map((row) => row.t));
+  const maximumTime = Math.max(...points.map((row) => row.t));
+  const timeSpan = Math.max(maximumTime - minimumTime, 1);
+  const xMin = Math.min(0, minimumTime);
+  const xMax = Math.ceil((maximumTime + timeSpan * 0.05) / 10) * 10;
+  const maximumPressure = Math.max(...points.map((row) => row.p));
+  const pressureStep = maximumPressure <= 100 ? 20 : 50;
+  const pressureMax = Math.ceil((maximumPressure * 1.1) / pressureStep) * pressureStep;
+
+  const upperImage = await renderTimeSeries(points, {
+    column: "u",
+    color: "#304ffe",
+    stepped: true,
+    title: "阀门开度随时间变化",
+    yLabel: "阀门开度 u (%)",
+    xMin,
+    xMax,
+    yMax: 100
+  });
+  const lowerImage = await renderTimeSeries(points, {
+    column: "p",
+    color: "#f5222d",
+    stepped: false,
+    title: "压力随时间变化",
+    yLabel: "压力 p (kPa)",
+    xMin,
+    xMax,
+    yMax: pressureMax
+  });
+
+  const canvas = createCanvas(CHART_WIDTH, CHART_HEIGHT * 2);
+  const context = canvas.getContext("2d");
+  context.fillStyle = "white";
+  context.fillRect(0, 0, canvas.width, canvas.height);
+  context.drawImage(await loadImage(upperImage), 0, 0);
+  context.drawImage(await loadImage(lowerImage), 0, CHART_HEIGHT);
+
+  await fs.promises.writeFile(outputPath, canvas.toBuffer("image/png"));
+  console.log(`[${new Date().toISOString()}] 已生成时序图: ${outputPath}`);
+}
+
+async function plotCsv(csvPath) {
+  const content = await fs.promises.readFile(csvPath, "utf8");
+  const rows = parse(content, {
+    bom: true,
+    columns: true,
+    skip_empty_lines: true,
+    trim: true
+  });
+  const requiredColumns = ["t", "u", "p"];
+  const headers = rows.length > 0 ? Object.keys(rows[0]) : [];
+  const missingColumns = requiredColumns.filter((column) => !headers.includes(column));
+  if (missingColumns.length > 0) {
+    throw new Error(`CSV 缺少列: ${missingColumns.join(", ")}`);
+  }
+
+  const points = rows
+    .map((row) => ({ t: Number(row.t), u: Number(row.u), p: Number(row.p) }))
+    .filter((row) => Number.isFinite(row.t) && Number.isFinite(row.u) && Number.isFinite(row.p));
+  if (points.length === 0) {
+    throw new Error("CSV 中没有可绘制的 t、u、p 数值行");
+  }
+
+  const parsedPath = path.parse(csvPath);
+  const outputPath = path.join(parsedPath.dir, `${parsedPath.name}-u-p-t.png`);
+  await renderCombinedPlot(points, outputPath);
+  return outputPath;
+}
+
+module.exports = { plotCsv };