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@@ -1,4 +1,5 @@
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node_modules/
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logs/
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data/
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*.png
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*.svg
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@@ -1,6 +1,6 @@
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# 📡 数据可视化图表生成器 - API 文档
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> 版本:v1.1.0 | 基础地址:`http://192.168.0.101:16016`
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> 版本:v1.9.0 | 基础地址:`http://192.168.0.101:16016`
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---
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@@ -10,6 +10,7 @@
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|------|------|------|
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| POST | `/api/chart` | 生成图表图片(JSON body,推荐) |
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| GET | `/api/chart` | 生成图表图片(URL 参数) |
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| POST | `/api/combine` | 多图合并(横排/竖排)生成一张图 |
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| GET | `/api/health` | 健康检查 |
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| GET | `/api/docs` | 返回本文档(JSON) |
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@@ -31,7 +32,7 @@ Content-Type: application/json
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| 参数 | 类型 | 必填 | 默认值 | 说明 |
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|------|------|:----:|--------|------|
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| `data` | string | ✅ | — | CSV 格式数据,`\n` 换行,第一行表头,第一列横坐标 |
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| `chartType` | string | — | `bar` | 图表类型:`bar` / `line` / `bar-line` |
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| `chartType` | string | — | `bar` | 图表类型:`bar` / `line` / `bar-line` / `pie` / `radar` |
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| `title` | string | — | `""` | 图表标题 |
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| `theme` | string | — | `default` | 主题风格:`default` / `dark` / `macarons` / `gradient` / `retro` |
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| `showLegend` | boolean | — | `true` | 显示图例 |
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@@ -44,6 +45,11 @@ Content-Type: application/json
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| `leftLabel` | string | — | `"左侧"` | 左侧区域标签 |
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| `rightLabel` | string | — | `"右侧"` | 右侧区域标签 |
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| `splitStyle` | string | — | `"solid"` | 分割线样式:`solid` / `dashed` / `dotted` |
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| `dualYAxis` | boolean | — | `false` | 启用双Y轴(左右量度不同) |
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| `rightAxisSeries` | array | — | `null` | 右轴系列名列表,如 `["利润"]`(未列出的系列用左轴) |
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| `leftAxisName` | string | — | `""` | 左轴名称(如 `"销售额(元)"`) |
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| `rightAxisName` | string | — | `""` | 右轴名称(如 `"增长率(%)"`) |
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| `seriesTypes` | array | — | `null` | 每系列图表类型,按系列顺序对应,如 `["bar","line"]`(`bar`/`line`/`auto`) |
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| `width` | number | — | `800` | 图片宽度(px) |
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| `height` | number | — | `500` | 图片高度(px) |
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| `pixelRatio` | number | — | `2` | 像素倍率(越大越清晰) |
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@@ -151,7 +157,85 @@ curl "http://192.168.0.101:16016/api/chart?data=%E4%BA%A7%E5%93%81,Q1,Q2%0A%E6%8
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---
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## 3. GET /api/health
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## 3. POST /api/combine(多图合并)
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将**多张图表**合并到一张图片中(默认 2 张,可多张),支持**横排(单行)**、**竖排(单列)**、**多行多列网格**三种排布,返回 PNG 图片。
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### 请求
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```
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POST /api/combine
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Content-Type: application/json
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```
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### 参数说明
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| 参数 | 类型 | 必填 | 说明 |
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|------|------|------|------|
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| `charts` | array | ✅ | 图表配置数组(N 张),每项同 `/api/chart` 参数:data/chartType/title/theme 等 |
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| `direction` | string | 否 | `horizontal` 横排(默认)/ `vertical` 竖排 / `grid` 多行多列 |
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| `cols` | number | 否 | 多行多列时的每行列数(默认 2,仅 `grid` 生效) |
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| `gap` | number | 否 | 图间距(默认 24px) |
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| `pixelRatio` | number | 否 | 像素倍率,默认 2(越清晰文件越大) |
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| `background` | string | 否 | 背景色,默认 `#ffffff` |
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> 兼容旧参数:`chart1` + `chart2` 仍可传(等价于 `charts: [chart1, chart2]`)。
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每个子图配置支持:`data`(CSV)、`chartType`(bar/line/bar-line/pie/radar)、`title`、`theme`、`showLegend`、`showGrid`、`showLabel`、`stackMode`、`smoothLine`、`width`、`height`。
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### curl 示例
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**横排三张图(左右并排):**
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```bash
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curl -X POST http://127.0.0.1:16016/api/combine \
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-H "Content-Type: application/json" \
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-d '{
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"charts": [
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{"data": "产品, Q1, Q2\n手机, 1200, 1800\n平板, 800, 950", "title": "销售", "chartType": "bar"},
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{"data": "月份, 营收\n1月, 500\n2月, 680\n3月, 820", "title": "趋势", "chartType": "line"},
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{"data": "地区, 销量\n华东, 300\n华南, 450", "title": "地区销量", "chartType": "bar"}
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],
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"direction": "horizontal"
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}' -o combine.png
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||||
``` -d '{
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"chart1": {
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"data": "产品, Q1, Q2\n手机, 1200, 1800\n平板, 800, 950",
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"title": "2024年销售",
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"chartType": "bar"
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},
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"chart2": {
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"data": "月份, 营收\n1月, 500\n2月, 680\n3月, 820",
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"title": "营收趋势",
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||||
"chartType": "line"
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||||
},
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||||
"direction": "horizontal"
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||||
}' -o combine.png
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||||
```
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||||
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||||
**竖排(上下堆叠):**
|
||||
```bash
|
||||
curl -X POST http://127.0.0.1:16016/api/combine \
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||||
-H "Content-Type: application/json" \
|
||||
-d '{
|
||||
"chart1": {"data": "指标, 2023年\n营收, 500\n利润, 80", "title": "营收对比", "chartType": "bar"},
|
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"chart2": {"data": "月份, 效率\n1月, 85\n2月, 88", "title": "效率趋势", "chartType": "line"},
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||||
"direction": "vertical"
|
||||
}' -o combine.png
|
||||
```
|
||||
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||||
### 返回
|
||||
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||||
PNG 图片二进制流,响应头包含:
|
||||
|
||||
| 响应头 | 说明 |
|
||||
|--------|------|
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||||
| `Content-Type` | `image/png` |
|
||||
| `X-Combine-Direction` | `horizontal` / `vertical` |
|
||||
| `X-Chart-Width` / `X-Chart-Height` | 合并图逻辑尺寸 |
|
||||
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||||
---
|
||||
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||||
## 4. GET /api/health
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健康检查。
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@@ -11,6 +11,9 @@
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||||
- **柱状图** - 支持单系列/多系列对比
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- **折线图** - 支持平滑曲线、面积填充
|
||||
- **混合图** - 柱状图+折线图组合展示
|
||||
- **饼图** - 环形占比展示(第一列=名称,第一系列=数值)
|
||||
- **雷达图** - 多维度对比(第一列=维度,每个系列=一个多边形)
|
||||
- **双Y轴** - 一张图左右两个坐标轴,量度可不同,左右轴可独立命名,系列可指定左轴/右轴且每种类型独立设置(柱状/折线)
|
||||
|
||||
### 📋 表格功能
|
||||
- **表格图片生成** - 根据数据生成精美的表格图片
|
||||
@@ -29,15 +32,26 @@
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||||
- 可自定义分割线样式(实线/虚线/点线)
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||||
- 自动标注左右区域标签
|
||||
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||||
### 🖼️ 多图合并
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||||
- 将多张图表合并到一张图片中,适合对比/汇总场景,**默认2张,可一键不断添加**(支持删除)
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||||
- 支持**横排(单行)**、**竖排(单列)**、**多行多列网格**(可设每行列数),一键切换实时预览
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||||
- 每张图可独立配置:数据、标题、图表类型、主题、图例/网格/标签/堆叠
|
||||
- 支持导出 PNG
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||||
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||||
### 📡 API 接口
|
||||
- **POST /api/chart** - JSON 请求体生成图表(完整参数支持)
|
||||
- **GET /api/chart** - URL 参数生成图表(简单场景)
|
||||
- **POST /api/table** - JSON 请求体生成表格图片
|
||||
- **GET /api/table** - URL 参数生成表格图片
|
||||
- **POST /api/combine** - 多图合并(横排/竖排)生成一张图片
|
||||
- 返回 PNG 图片,支持自定义分辨率和像素倍率
|
||||
|
||||
### 📥 导出功能
|
||||
- Web UI 导出 PNG(2倍分辨率)
|
||||
- 导出设置:分辨率预设(原始/1920×1080/1280×720/1024×768/800×600/自定义)
|
||||
- 自定义分辨率手动输入,页面实时居中预览保存后的图
|
||||
- 分辨率历史记忆(最近5个,localStorage 持久化,一键复用)
|
||||
- 文件名默认按日期时间自动命名(每次不同),支持手动命名
|
||||
- Web UI 导出 PNG / 图表模式支持 SVG
|
||||
- API 直接返回 PNG 图片流
|
||||
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||||
## 🚀 快速开始
|
||||
|
||||
+122
-11
@@ -13,6 +13,9 @@
|
||||
<header class="app-header">
|
||||
<h1>📊 数据可视化图表生成器</h1>
|
||||
<p class="subtitle">粘贴数据,生成精美图表或表格</p>
|
||||
<div class="header-actions">
|
||||
<button class="btn btn-fav-outline" onclick="openFavorites()">⭐ 收藏区</button>
|
||||
</div>
|
||||
</header>
|
||||
|
||||
<div class="main-content">
|
||||
@@ -23,11 +26,12 @@
|
||||
<div class="mode-switch">
|
||||
<button class="mode-btn active" id="btnChartMode" onclick="switchMode('chart')">📈 图表模式</button>
|
||||
<button class="mode-btn" id="btnTableMode" onclick="switchMode('table')">📋 表格模式</button>
|
||||
<button class="mode-btn" id="btnCombineMode" onclick="switchMode('combine')">🖼️ 多图合并</button>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- 数据输入区 -->
|
||||
<div class="panel-section">
|
||||
<div class="panel-section" id="dataInputSection">
|
||||
<h2>📝 数据输入</h2>
|
||||
<div class="input-format-hint">
|
||||
<p><strong>格式说明:</strong></p>
|
||||
@@ -55,6 +59,8 @@ C, 20, 30, 40</pre>
|
||||
<option value="bar">柱状图</option>
|
||||
<option value="line">折线图</option>
|
||||
<option value="bar-line">柱状图+折线图混合</option>
|
||||
<option value="pie">饼图</option>
|
||||
<option value="radar">雷达图</option>
|
||||
</select>
|
||||
</div>
|
||||
|
||||
@@ -99,8 +105,19 @@ C, 20, 30, 40</pre>
|
||||
<label><input type="checkbox" id="showLabel" onchange="updateChart()"> 数据标签</label>
|
||||
<label><input type="checkbox" id="stackMode" onchange="updateChart()"> 堆叠模式</label>
|
||||
<label><input type="checkbox" id="smoothLine" checked onchange="updateChart()"> 平滑曲线</label>
|
||||
<label><input type="checkbox" id="dualAxis" onchange="onDualAxisChange()"> 双Y轴</label>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="config-group" id="rightAxisGroup" style="display:none;">
|
||||
<label>左右轴名称(量度可不同)</label>
|
||||
<div class="res-input-row">
|
||||
<input type="text" id="leftAxisName" placeholder="左轴,如:销售额" oninput="updateChart()">
|
||||
<span class="res-times">/</span>
|
||||
<input type="text" id="rightAxisName" placeholder="右轴,如:增长率(%)" oninput="updateChart()">
|
||||
</div>
|
||||
<p class="hint-text">在下方「系列配置」中可指定每个系列用左轴/右轴及图表类型(柱状/折线)</p>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- 表格配置区 -->
|
||||
@@ -207,24 +224,106 @@ C, 20, 30, 40</pre>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- 导出按钮 -->
|
||||
<div class="panel-section">
|
||||
<!-- 导出设置 + 按钮(默认折叠) -->
|
||||
<div class="panel-section" id="exportSection">
|
||||
<div class="export-header">
|
||||
<div class="export-header-main" onclick="toggleExportSettings()" title="点击展开/折叠">
|
||||
<h2>📤 导出设置</h2>
|
||||
<span class="export-summary" id="exportSummary">原始大小</span>
|
||||
<span class="export-toggle" id="exportToggle">▸</span>
|
||||
</div>
|
||||
<button class="btn btn-success btn-sm" onclick="exportImage('png')">📥 下载</button>
|
||||
<button class="btn btn-fav btn-sm" id="btnFavorite" onclick="saveFavorite()">⭐ 收藏</button>
|
||||
</div>
|
||||
|
||||
<div id="exportSettingsBody" class="export-settings-body" style="display:none;">
|
||||
<div class="config-group">
|
||||
<label>分辨率</label>
|
||||
<select id="exportPreset" onchange="onExportPresetChange()">
|
||||
<option value="original">原始大小</option>
|
||||
<option value="1920x1080">1920 × 1080</option>
|
||||
<option value="1280x720">1280 × 720</option>
|
||||
<option value="1024x768">1024 × 768</option>
|
||||
<option value="800x600">800 × 600</option>
|
||||
<option value="custom">自定义</option>
|
||||
</select>
|
||||
</div>
|
||||
|
||||
<div class="config-group" id="customResGroup" style="display:none;">
|
||||
<label>自定义分辨率(宽 × 高)</label>
|
||||
<div class="res-input-row">
|
||||
<input type="number" id="customWidth" min="1" max="8192" placeholder="宽" oninput="onCustomResInput()">
|
||||
<span class="res-times">×</span>
|
||||
<input type="number" id="customHeight" min="1" max="8192" placeholder="高" oninput="onCustomResInput()">
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="config-group">
|
||||
<label>历史分辨率(最近5个)</label>
|
||||
<select id="exportHistory" onchange="onHistorySelect()">
|
||||
<option value="">— 暂无历史 —</option>
|
||||
</select>
|
||||
</div>
|
||||
|
||||
<div class="config-group">
|
||||
<label>文件名</label>
|
||||
<input type="text" id="exportFilename" placeholder="留空则按日期时间自动命名">
|
||||
<p class="hint-text" id="exportResHint"></p>
|
||||
</div>
|
||||
|
||||
<div class="btn-group">
|
||||
<button class="btn btn-secondary" onclick="resetExportSettings()">🔄 恢复默认</button>
|
||||
<button class="btn btn-success" id="btnExportSvg" onclick="exportImage('svg')">📥 导出SVG</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- 多图合并配置区 -->
|
||||
<div class="panel-section" id="combineConfigSection" style="display:none;">
|
||||
<h2>🖼️ 多图合并配置</h2>
|
||||
|
||||
<div class="config-group">
|
||||
<label>排列方式</label>
|
||||
<div class="combine-direction">
|
||||
<label class="dir-option"><input type="radio" name="combineDirection" value="horizontal" checked onchange="generateCombine()"> ⇄ 横排(单行)</label>
|
||||
<label class="dir-option"><input type="radio" name="combineDirection" value="vertical" onchange="generateCombine()"> ⇅ 竖排(单列)</label>
|
||||
<label class="dir-option"><input type="radio" name="combineDirection" value="grid" onchange="onCombineGridToggle()"> ▦ 多行多列</label>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="config-group" id="gridColsGroup" style="display:none;">
|
||||
<label>每行列数</label>
|
||||
<input type="number" id="gridCols" value="2" min="1" max="6" oninput="generateCombine()">
|
||||
</div>
|
||||
|
||||
<div id="combineChartsContainer">
|
||||
<!-- 图表卡片由 JS 动态渲染 -->
|
||||
</div>
|
||||
|
||||
<div class="btn-group">
|
||||
<button class="btn btn-success" onclick="exportImage('png')">📥 导出PNG</button>
|
||||
<button class="btn btn-success" id="btnExportSvg" onclick="exportImage('svg')">📥 导出SVG</button>
|
||||
<button class="btn btn-secondary" onclick="addCombineChart()">+ 添加图表</button>
|
||||
<button class="btn btn-primary" onclick="generateCombine()">🖼️ 生成合并图</button>
|
||||
<button class="btn btn-success" onclick="exportImage('png')">📥 下载图片</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- 右侧面板:图表预览 + 风格切换 -->
|
||||
<!-- 右侧面板:图表预览 + 导出预览 + 风格切换 -->
|
||||
<div class="right-panel">
|
||||
<div class="chart-container">
|
||||
<div id="chartArea" class="chart-area">
|
||||
<div class="placeholder">
|
||||
<p>📊</p>
|
||||
<p>输入数据后点击"生成图表"</p>
|
||||
<div class="right-main">
|
||||
<div class="chart-container">
|
||||
<div id="chartArea" class="chart-area">
|
||||
<div class="placeholder">
|
||||
<p>📊</p>
|
||||
<p>输入数据后点击"生成图表"</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<!-- 导出效果预览(按分辨率居中展示保存后的图) -->
|
||||
<div class="export-preview-box" id="exportPreviewBox" style="display:none;">
|
||||
<div class="export-preview-title" id="exportPreviewTitle">📐 导出预览</div>
|
||||
<div class="export-preview-inner" id="exportPreviewInner"></div>
|
||||
</div>
|
||||
</div>
|
||||
<!-- 风格快速切换按钮(放在图表右侧) -->
|
||||
<div class="theme-buttons-section">
|
||||
@@ -325,5 +424,17 @@ C, 20, 30, 40</pre>
|
||||
</div>
|
||||
|
||||
<script src="app.js"></script>
|
||||
|
||||
<!-- 收藏区弹窗 -->
|
||||
<div class="fav-modal" id="favoritesModal" onclick="if(event.target===this)closeFavorites()">
|
||||
<div class="fav-modal-box">
|
||||
<div class="fav-modal-head">
|
||||
<h2>⭐ 收藏区</h2>
|
||||
<button class="btn btn-remove" onclick="closeFavorites()" title="关闭">✕</button>
|
||||
</div>
|
||||
<div class="fav-modal-tip">共 <span id="favCount">0</span> 条 · 点击图片看原图 · 「编辑」在新标签页再次制作</div>
|
||||
<div class="fav-list" id="favoritesList"></div>
|
||||
</div>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
+11
-1
@@ -6,6 +6,12 @@ PORT=16016
|
||||
APP_DIR="/home/openclaw/.openclaw/workspace-hz4th_coder/works/data-chart-tool"
|
||||
LOG_FILE="$APP_DIR/logs/server.log"
|
||||
|
||||
# node 绝对路径(cron 环境 PATH 不含 nvm,必须用全路径)
|
||||
NODE_BIN="$HOME/.nvm/versions/node/v24.15.0/bin/node"
|
||||
if [ ! -x "$NODE_BIN" ]; then
|
||||
NODE_BIN="$(command -v node 2>/dev/null)"
|
||||
fi
|
||||
|
||||
# 检查端口是否被占用
|
||||
if ss -tlnp | grep -q ":$PORT "; then
|
||||
# 检查是不是 node 进程
|
||||
@@ -28,9 +34,13 @@ if ss -tlnp | grep -q ":$PORT "; then
|
||||
fi
|
||||
|
||||
# 启动 node 服务
|
||||
if [ -z "$NODE_BIN" ] || [ ! -x "$NODE_BIN" ]; then
|
||||
echo "[$(date)] ERROR: node 未找到,无法启动"
|
||||
exit 1
|
||||
fi
|
||||
echo "[$(date)] Starting data-chart-tool..."
|
||||
cd "$APP_DIR"
|
||||
nohup node server.js >> "$LOG_FILE" 2>&1 &
|
||||
nohup "$NODE_BIN" server.js >> "$LOG_FILE" 2>&1 &
|
||||
echo "[$(date)] Started with PID $!"
|
||||
|
||||
# 等待启动
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
const express = require('express');
|
||||
const cors = require('cors');
|
||||
const { createCanvas, registerFont } = require('@napi-rs/canvas');
|
||||
const fs = require('fs');
|
||||
const { createCanvas, registerFont, loadImage } = require('@napi-rs/canvas');
|
||||
const echarts = require('echarts');
|
||||
const path = require('path');
|
||||
|
||||
@@ -113,7 +114,12 @@ function buildChartOption(params) {
|
||||
leftLabel = '左侧',
|
||||
rightLabel = '右侧',
|
||||
splitStyle = 'solid',
|
||||
seriesColors: customColors = null
|
||||
seriesColors: customColors = null,
|
||||
dualYAxis = false,
|
||||
rightAxisSeries = null,
|
||||
leftAxisName = '',
|
||||
rightAxisName = '',
|
||||
seriesTypes = null
|
||||
} = params;
|
||||
|
||||
const parsedData = parseData(data);
|
||||
@@ -125,6 +131,72 @@ function buildChartOption(params) {
|
||||
const textColor = theme === 'dark' ? '#e0e0e0' : '#333333';
|
||||
const axisLineColor = theme === 'dark' ? '#444' : '#ddd';
|
||||
|
||||
// 饼图/雷达图:专用构建逻辑(无坐标轴/网格)
|
||||
if (chartType === 'pie' || chartType === 'radar') {
|
||||
const bgC = theme === 'dark' ? '#1a1a2e' : '#ffffff';
|
||||
const txtC = theme === 'dark' ? '#e0e0e0' : '#333333';
|
||||
const tTitle = title ? { text: title, left: 'center', top: 15, textStyle: { color: txtC, fontSize: 18, fontWeight: 600 } } : undefined;
|
||||
if (chartType === 'pie') {
|
||||
// 饼图:第一列=名称,第一个系列=数值
|
||||
const sName = parsedData.seriesNames[0];
|
||||
const data = parsedData.seriesData[sName];
|
||||
const pieData = parsedData.categories.map((c, i) => ({ name: c, value: data[i] || 0 }));
|
||||
return {
|
||||
backgroundColor: bgC,
|
||||
title: tTitle,
|
||||
tooltip: { trigger: 'item', formatter: '{b}: {c} ({d}%)' },
|
||||
legend: showLegend ? { orient: 'vertical', left: 'left', top: title ? 50 : 20, textStyle: { color: txtC, fontSize: 12 } } : { show: false },
|
||||
color: seriesColorsArr,
|
||||
series: [{
|
||||
type: 'pie',
|
||||
radius: ['38%', '68%'],
|
||||
center: ['52%', '55%'],
|
||||
itemStyle: { borderRadius: 6, borderColor: bgC, borderWidth: 2 },
|
||||
label: { show: showLabel, formatter: '{b}: {d}%', color: txtC },
|
||||
labelLine: { show: showLabel },
|
||||
data: pieData
|
||||
}],
|
||||
animation: false
|
||||
};
|
||||
} else {
|
||||
// 雷达图:第一列=维度名,每个系列=一个雷达多边形
|
||||
const indicator = parsedData.categories.map(c => {
|
||||
let max = 0;
|
||||
parsedData.seriesNames.forEach(n => { parsedData.seriesData[n].forEach(v => { if (v > max) max = v; }); });
|
||||
return { name: c, max: Math.ceil(max * 1.2) || 100 };
|
||||
});
|
||||
return {
|
||||
backgroundColor: bgC,
|
||||
title: tTitle,
|
||||
tooltip: { trigger: 'item' },
|
||||
legend: showLegend ? { orient: 'horizontal', left: 'center', top: title ? 48 : 15, textStyle: { color: txtC, fontSize: 12 } } : { show: false },
|
||||
color: seriesColorsArr,
|
||||
radar: {
|
||||
indicator,
|
||||
radius: '62%',
|
||||
center: ['50%', '55%'],
|
||||
splitNumber: 5,
|
||||
axisName: { color: txtC, fontSize: 12 },
|
||||
splitLine: { lineStyle: { color: theme === 'dark' ? '#444' : '#ddd' } },
|
||||
splitArea: {
|
||||
areaStyle: {
|
||||
color: theme === 'dark' ? ['rgba(79,195,247,0.03)', 'rgba(79,195,247,0.06)'] : ['rgba(79,70,229,0.03)', 'rgba(79,70,229,0.06)']
|
||||
}
|
||||
},
|
||||
axisLine: { lineStyle: { color: theme === 'dark' ? '#444' : '#ddd' } }
|
||||
},
|
||||
series: parsedData.seriesNames.map(n => ({
|
||||
type: 'radar',
|
||||
name: n,
|
||||
data: [{ value: parsedData.seriesData[n], name: n }],
|
||||
symbolSize: 4,
|
||||
areaStyle: { opacity: 0.15 }
|
||||
})),
|
||||
animation: false
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
// 构建系列
|
||||
const series = parsedData.seriesNames.map((name, idx) => {
|
||||
const dataArr = parsedData.seriesData[name];
|
||||
@@ -134,6 +206,11 @@ function buildChartOption(params) {
|
||||
? (idx % 2 === 0 ? 'bar' : 'line')
|
||||
: chartType;
|
||||
|
||||
// 每系列独立类型覆盖(seriesTypes 数组按系列顺序对应)
|
||||
if (Array.isArray(seriesTypes) && seriesTypes[idx] && seriesTypes[idx] !== 'auto') {
|
||||
type = seriesTypes[idx];
|
||||
}
|
||||
|
||||
const seriesItem = {
|
||||
name: name,
|
||||
type: type,
|
||||
@@ -148,6 +225,12 @@ function buildChartOption(params) {
|
||||
}
|
||||
};
|
||||
|
||||
// 双Y轴:rightAxisSeries 指定右轴系列名
|
||||
if (dualYAxis) {
|
||||
const rightNames = Array.isArray(rightAxisSeries) ? rightAxisSeries : (rightAxisSeries ? [rightAxisSeries] : []);
|
||||
seriesItem.yAxisIndex = rightNames.includes(name) ? 1 : 0;
|
||||
}
|
||||
|
||||
if (stackMode) {
|
||||
seriesItem.stack = 'total';
|
||||
}
|
||||
@@ -159,8 +242,7 @@ function buildChartOption(params) {
|
||||
seriesItem.areaStyle = theme === 'gradient' ? { opacity: 0.15 } : undefined;
|
||||
}
|
||||
|
||||
if (type === 'bar') {
|
||||
seriesItem.barMaxWidth = 40;
|
||||
if (type === 'bar') {seriesItem.barMaxWidth = 40;
|
||||
seriesItem.itemStyle.borderRadius = stackMode ? [0, 0, 0, 0] : [4, 4, 0, 0];
|
||||
}
|
||||
|
||||
@@ -269,7 +351,33 @@ function buildChartOption(params) {
|
||||
},
|
||||
axisTick: { show: false }
|
||||
},
|
||||
yAxis: {
|
||||
yAxis: dualYAxis ? [
|
||||
{
|
||||
type: 'value',
|
||||
name: leftAxisName || '左轴',
|
||||
nameTextStyle: { color: textColor, fontSize: 11, padding: [0, 0, 0, 4] },
|
||||
axisLine: { show: false },
|
||||
axisTick: { show: false },
|
||||
axisLabel: { color: textColor, fontSize: 11 },
|
||||
splitLine: {
|
||||
show: showGrid,
|
||||
lineStyle: {
|
||||
color: theme === 'dark' ? '#333' : '#f0f0f0',
|
||||
type: 'dashed'
|
||||
}
|
||||
}
|
||||
},
|
||||
{
|
||||
type: 'value',
|
||||
name: rightAxisName || '右轴',
|
||||
position: 'right',
|
||||
nameTextStyle: { color: textColor, fontSize: 11, padding: [0, 4, 0, 0] },
|
||||
axisLine: { show: false },
|
||||
axisTick: { show: false },
|
||||
axisLabel: { color: textColor, fontSize: 11 },
|
||||
splitLine: { show: false }
|
||||
}
|
||||
] : {
|
||||
type: 'value',
|
||||
axisLine: { show: false },
|
||||
axisTick: { show: false },
|
||||
@@ -366,6 +474,11 @@ app.get('/api/chart', (req, res) => {
|
||||
leftLabel: req.query.leftLabel || '左侧',
|
||||
rightLabel: req.query.rightLabel || '右侧',
|
||||
splitStyle: req.query.splitStyle || 'solid',
|
||||
dualYAxis: req.query.dualYAxis === 'true',
|
||||
rightAxisSeries: req.query.rightAxisSeries ? req.query.rightAxisSeries.split(',') : null,
|
||||
leftAxisName: req.query.leftAxisName || '',
|
||||
rightAxisName: req.query.rightAxisName || '',
|
||||
seriesTypes: req.query.seriesTypes ? req.query.seriesTypes.split(',') : null,
|
||||
width: parseInt(req.query.width) || 800,
|
||||
height: parseInt(req.query.height) || 500,
|
||||
format: req.query.format || 'png',
|
||||
@@ -882,12 +995,17 @@ app.get('/api/health', (req, res) => {
|
||||
res.json({
|
||||
status: 'ok',
|
||||
service: 'data-chart-tool',
|
||||
version: '1.8.0',
|
||||
version: '1.15.0',
|
||||
endpoints: {
|
||||
'POST /api/chart': '生成图表图片(JSON body)',
|
||||
'GET /api/chart': '生成图表图片(URL 参数)',
|
||||
'POST /api/table': '生成表格图片(JSON body)',
|
||||
'GET /api/table': '生成表格图片(URL 参数)',
|
||||
'POST /api/favorites': '保存收藏(原图+配置)',
|
||||
'GET /api/favorites': '收藏列表',
|
||||
'GET /api/favorites/:id': '单个收藏详情(含配置)',
|
||||
'GET /api/favorites/:id/image': '收藏原图',
|
||||
'DELETE /api/favorites/:id': '删除收藏',
|
||||
'GET /api/health': '健康检查'
|
||||
}
|
||||
});
|
||||
@@ -897,7 +1015,7 @@ app.get('/api/health', (req, res) => {
|
||||
app.get('/api/docs', (req, res) => {
|
||||
res.json({
|
||||
name: '数据可视化图表生成器 API',
|
||||
version: '1.8.0',
|
||||
version: '1.15.0',
|
||||
endpoints: [
|
||||
{
|
||||
method: 'POST',
|
||||
@@ -906,7 +1024,7 @@ app.get('/api/docs', (req, res) => {
|
||||
'Content-Type': 'application/json',
|
||||
params: {
|
||||
data: { type: 'string', required: true, description: 'CSV 格式数据(第一行表头,第一列横坐标)' },
|
||||
chartType: { type: 'string', default: 'bar', options: ['bar', 'line', 'bar-line'], description: '图表类型' },
|
||||
chartType: { type: 'string', default: 'bar', options: ['bar', 'line', 'bar-line', 'pie', 'radar'], description: '图表类型' },
|
||||
title: { type: 'string', default: '', description: '图表标题' },
|
||||
theme: { type: 'string', default: 'default', options: ['default', 'dark', 'macarons', 'gradient', 'retro', 'ocean', 'forest', 'sunset', 'lavender', 'minimal', 'cherry', 'midnight', 'gold', 'coral', 'mint'], description: '主题风格' },
|
||||
showLegend: { type: 'boolean', default: true, description: '是否显示图例' },
|
||||
@@ -922,7 +1040,12 @@ app.get('/api/docs', (req, res) => {
|
||||
width: { type: 'number', default: 800, description: '图片宽度(px)' },
|
||||
height: { type: 'number', default: 500, description: '图片高度(px)' },
|
||||
format: { type: 'string', default: 'png', options: ['png'], description: '输出格式' },
|
||||
pixelRatio: { type: 'number', default: 2, description: '像素倍率(清晰度)' }
|
||||
pixelRatio: { type: 'number', default: 2, description: '像素倍率(清晰度)' },
|
||||
dualYAxis: { type: 'boolean', default: false, description: '是否启用双Y轴(左右量度不同)' },
|
||||
rightAxisSeries: { type: 'array', default: null, description: '右轴系列名列表(如 ["利润"],指定哪些系列用右轴)' },
|
||||
leftAxisName: { type: 'string', default: '', description: '左轴名称' },
|
||||
rightAxisName: { type: 'string', default: '', description: '右轴名称' },
|
||||
seriesTypes: { type: 'array', default: null, description: '每系列图表类型(如 ["bar","line"],按系列顺序对应,bar/line/auto)' }
|
||||
},
|
||||
returns: 'image/png',
|
||||
example: {
|
||||
@@ -1000,17 +1123,363 @@ app.get('/api/docs', (req, res) => {
|
||||
example: {
|
||||
request: `curl "http://localhost:16016/api/table?data=产品,价格,库存\\n手机,2999,100\\n平板,1999,50&title=产品列表" -o table.png`
|
||||
}
|
||||
},
|
||||
{
|
||||
method: 'POST',
|
||||
path: '/api/combine',
|
||||
description: '将多张图表合并到一张图片中(支持横排/竖排)',
|
||||
'Content-Type': 'application/json',
|
||||
params: {
|
||||
charts: { type: 'array', required: true, description: '图表配置数组(N 张),每项同 /api/chart 参数;兼容 chart1 + chart2' },
|
||||
direction: { type: 'string', default: 'horizontal', options: ['horizontal', 'vertical', 'grid'], description: '排布方式:horizontal 横排(单行)/ vertical 竖排(单列)/ grid 多行多列' },
|
||||
cols: { type: 'number', default: 2, description: '多行多列时的每行列数(仅 grid 生效)' },
|
||||
gap: { type: 'number', default: 24, description: '图间距(px)' },
|
||||
pixelRatio: { type: 'number', default: 2, description: '像素倍率(清晰度)' },
|
||||
background: { type: 'string', default: '#ffffff', description: '背景色' }
|
||||
},
|
||||
returns: 'image/png',
|
||||
example: {
|
||||
request: `curl -X POST http://localhost:16016/api/combine \\
|
||||
-H "Content-Type: application/json" \\
|
||||
-d '{
|
||||
"chart1": {"data": "产品, Q1, Q2\\n手机, 1200, 1800\\n平板, 800, 950", "title": "2024年销售", "chartType": "bar"},
|
||||
"chart2": {"data": "月份, 营收\\n1月, 500\\n2月, 680\\n3月, 820", "title": "营收趋势", "chartType": "line"},
|
||||
"direction": "horizontal"
|
||||
}' -o combine.png`,
|
||||
response: 'PNG 图片二进制流'
|
||||
}
|
||||
},
|
||||
{
|
||||
method: 'POST',
|
||||
path: '/api/favorites',
|
||||
description: '保存收藏(原始大小原图 + 完整配置,用于重新编辑)',
|
||||
'Content-Type': 'application/json',
|
||||
params: {
|
||||
mode: { type: 'string', required: true, options: ['chart', 'table', 'combine'], description: '收藏类型' },
|
||||
title: { type: 'string', default: '', description: '收藏标题' },
|
||||
config: { type: 'object', required: true, description: '完整配置(数据/图表类型/主题/系列颜色顺序/轴/分割等)' },
|
||||
image: { type: 'string', description: '原始大小图片 dataURL(可选,未传则服务端按配置生成)' }
|
||||
},
|
||||
returns: 'json { ok, id, title, width, height }'
|
||||
},
|
||||
{
|
||||
method: 'GET',
|
||||
path: '/api/favorites',
|
||||
description: '收藏列表(按时间倒序)',
|
||||
returns: 'json { ok, favorites: [{id, mode, title, createdAt, width, height}] }'
|
||||
},
|
||||
{
|
||||
method: 'GET',
|
||||
path: '/api/favorites/:id',
|
||||
description: '单个收藏详情(含完整 config,供编辑页加载)'
|
||||
},
|
||||
{
|
||||
method: 'GET',
|
||||
path: '/api/favorites/:id/image',
|
||||
description: '收藏原图 PNG(?download=1 强制下载)'
|
||||
},
|
||||
{
|
||||
method: 'DELETE',
|
||||
path: '/api/favorites/:id',
|
||||
description: '删除收藏'
|
||||
}
|
||||
]
|
||||
});
|
||||
});
|
||||
|
||||
// ===== API: 多图合并生成图片 =====
|
||||
app.post('/api/combine', async (req, res) => {
|
||||
try {
|
||||
const body = req.body || {};
|
||||
// 支持 charts 数组(N 张图),也兼容旧的 chart1 + chart2
|
||||
let charts;
|
||||
if (Array.isArray(body.charts) && body.charts.length) {
|
||||
charts = body.charts;
|
||||
} else if (body.chart1 && body.chart2) {
|
||||
charts = [body.chart1, body.chart2];
|
||||
} else {
|
||||
return res.status(400).json({ error: '需要提供 charts 数组(或 chart1 + chart2)' });
|
||||
}
|
||||
charts = charts.filter(c => c && c.data);
|
||||
if (charts.length === 0) {
|
||||
return res.status(400).json({ error: '至少需要一个有数据的图表(data 参数)' });
|
||||
}
|
||||
|
||||
const direction = ['vertical', 'grid'].includes(body.direction) ? body.direction : 'horizontal';
|
||||
const cols = Math.max(1, parseInt(body.cols) || 2);
|
||||
const gap = parseInt(body.gap) || 24;
|
||||
const pixelRatio = parseInt(body.pixelRatio) || 2;
|
||||
const background = body.background || '#ffffff';
|
||||
|
||||
// 渲染单个子图(直接按目标尺寸渲染,避免二次缩放损失)
|
||||
// 注意:必须先 toBuffer 再 chart.dispose(),dispose 会清空 canvas 内容!
|
||||
const renderSub = async (params, w, h) => {
|
||||
const option = buildChartOption(params);
|
||||
const c = createCanvas(w * pixelRatio, h * pixelRatio);
|
||||
const chart = echarts.init(c, null, {
|
||||
renderer: 'canvas',
|
||||
width: w,
|
||||
height: h,
|
||||
devicePixelRatio: pixelRatio
|
||||
});
|
||||
chart.setOption(option);
|
||||
const buf = c.toBuffer('image/png');
|
||||
chart.dispose();
|
||||
const img = await loadImage(buf);
|
||||
return { img, w, h };
|
||||
};
|
||||
|
||||
const subs = await Promise.all(charts.map(c =>
|
||||
renderSub(c, parseInt(c.width) || 640, parseInt(c.height) || 420)
|
||||
));
|
||||
|
||||
let W, H;
|
||||
const canvas = createCanvas(1, 1);
|
||||
const ctx = canvas.getContext('2d');
|
||||
|
||||
if (direction === 'grid') {
|
||||
// 多行多列网格:所有子图统一 contain 到最大单元格,按列填充
|
||||
const rows = Math.ceil(subs.length / cols);
|
||||
const cellW = Math.max(...subs.map(s => s.w));
|
||||
const cellH = Math.max(...subs.map(s => s.h));
|
||||
W = cols * cellW + (cols - 1) * gap;
|
||||
H = rows * cellH + (rows - 1) * gap;
|
||||
canvas.width = W * pixelRatio;
|
||||
canvas.height = H * pixelRatio;
|
||||
ctx.fillStyle = background;
|
||||
ctx.fillRect(0, 0, W * pixelRatio, H * pixelRatio);
|
||||
subs.forEach((s, i) => {
|
||||
const r = Math.floor(i / cols), c = i % cols;
|
||||
const scale = Math.min(cellW / s.w, cellH / s.h);
|
||||
const dw = Math.round(s.w * scale), dh = Math.round(s.h * scale);
|
||||
const x = c * (cellW + gap) + Math.round((cellW - dw) / 2);
|
||||
const y = r * (cellH + gap) + Math.round((cellH - dh) / 2);
|
||||
ctx.drawImage(s.img, x * pixelRatio, y * pixelRatio, dw * pixelRatio, dh * pixelRatio);
|
||||
});
|
||||
} else {
|
||||
let scaled;
|
||||
if (direction === 'vertical') {
|
||||
// 竖排(上下):等宽对齐
|
||||
const tw = Math.max(...subs.map(s => s.w));
|
||||
scaled = subs.map(s => ({ img: s.img, w: tw, h: Math.round(s.h * (tw / s.w)) }));
|
||||
W = tw;
|
||||
H = scaled.reduce((sum, s) => sum + s.h, 0) + gap * (scaled.length - 1);
|
||||
} else {
|
||||
// 横排(左右):等高对齐
|
||||
const th = Math.max(...subs.map(s => s.h));
|
||||
scaled = subs.map(s => ({ img: s.img, w: Math.round(s.w * (th / s.h)), h: th }));
|
||||
W = scaled.reduce((sum, s) => sum + s.w, 0) + gap * (scaled.length - 1);
|
||||
H = th;
|
||||
}
|
||||
|
||||
canvas.width = W * pixelRatio;
|
||||
canvas.height = H * pixelRatio;
|
||||
ctx.fillStyle = background;
|
||||
ctx.fillRect(0, 0, W * pixelRatio, H * pixelRatio);
|
||||
|
||||
if (direction === 'vertical') {
|
||||
// 5 参数形式:drawImage(img, dx, dy, dw, dh),源整图缩放到目标矩形
|
||||
let y = 0;
|
||||
scaled.forEach(s => {
|
||||
ctx.drawImage(s.img, 0, y * pixelRatio, s.w * pixelRatio, s.h * pixelRatio);
|
||||
y += s.h + gap;
|
||||
});
|
||||
} else {
|
||||
let x = 0;
|
||||
scaled.forEach(s => {
|
||||
ctx.drawImage(s.img, x * pixelRatio, 0, s.w * pixelRatio, s.h * pixelRatio);
|
||||
x += s.w + gap;
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
const buffer = canvas.toBuffer('image/png');
|
||||
res.set({
|
||||
'Content-Type': 'image/png',
|
||||
'Content-Length': buffer.length,
|
||||
'X-Combine-Direction': direction,
|
||||
'X-Combine-Charts': String(subs.length),
|
||||
'X-Chart-Width': W,
|
||||
'X-Chart-Height': H
|
||||
});
|
||||
res.send(buffer);
|
||||
} catch (err) {
|
||||
console.error('Combine error:', err);
|
||||
res.status(500).json({ error: '多图合并失败: ' + err.message });
|
||||
}
|
||||
});
|
||||
|
||||
// ===== 收藏功能 =====
|
||||
const FAV_DIR = path.join(__dirname, 'data', 'favorites');
|
||||
const FAV_INDEX = path.join(FAV_DIR, 'index.json');
|
||||
|
||||
function ensureFavDir() {
|
||||
if (!fs.existsSync(FAV_DIR)) fs.mkdirSync(FAV_DIR, { recursive: true });
|
||||
}
|
||||
|
||||
function loadFavIndex() {
|
||||
ensureFavDir();
|
||||
try {
|
||||
if (fs.existsSync(FAV_INDEX)) {
|
||||
const arr = JSON.parse(fs.readFileSync(FAV_INDEX, 'utf8'));
|
||||
return Array.isArray(arr) ? arr : [];
|
||||
}
|
||||
} catch (e) {
|
||||
console.warn('收藏索引读取失败:', e.message);
|
||||
}
|
||||
return [];
|
||||
}
|
||||
|
||||
function saveFavIndex(index) {
|
||||
ensureFavDir();
|
||||
fs.writeFileSync(FAV_INDEX, JSON.stringify(index, null, 2), 'utf8');
|
||||
}
|
||||
|
||||
function genFavId() {
|
||||
const d = new Date();
|
||||
const pad = n => String(n).padStart(2, '0');
|
||||
return `${d.getFullYear()}${pad(d.getMonth()+1)}${pad(d.getDate())}_${pad(d.getHours())}${pad(d.getMinutes())}${pad(d.getSeconds())}_${Math.random().toString(36).slice(2, 6)}`;
|
||||
}
|
||||
|
||||
function dataUrlToBuffer(dataUrl) {
|
||||
if (!dataUrl) return null;
|
||||
const m = /^data:image\/(png|jpeg|webp);base64,(.+)$/.exec(dataUrl);
|
||||
if (!m) return null;
|
||||
return Buffer.from(m[2], 'base64');
|
||||
}
|
||||
|
||||
function getPngSize(buf) {
|
||||
// PNG 签名 8 字节后 IHDR 块:length(4) + type(4) + width(4) + height(4)
|
||||
if (buf && buf.length >= 24 && buf[0] === 0x89 && buf[1] === 0x50) {
|
||||
return { w: buf.readUInt32BE(16), h: buf.readUInt32BE(20) };
|
||||
}
|
||||
return { w: 0, h: 0 };
|
||||
}
|
||||
|
||||
// 服务端兜底渲染(前端未传图时按原始大小生成)
|
||||
function renderFavoriteImage(mode, config) {
|
||||
if (mode === 'chart') {
|
||||
const width = parseInt(config.width) || 800;
|
||||
const height = parseInt(config.height) || 500;
|
||||
const pixelRatio = parseInt(config.pixelRatio) || 2;
|
||||
const option = buildChartOption(config);
|
||||
const canvas = createCanvas(width * pixelRatio, height * pixelRatio);
|
||||
const chart = echarts.init(canvas, null, {
|
||||
renderer: 'canvas', width, height, devicePixelRatio: pixelRatio
|
||||
});
|
||||
chart.setOption(option);
|
||||
return canvas;
|
||||
}
|
||||
if (mode === 'table') {
|
||||
return generateTableImage(config);
|
||||
}
|
||||
throw new Error('combine 模式需由前端提供原图');
|
||||
}
|
||||
|
||||
// 保存收藏(前端传原始大小原图 + 完整配置,便于重新编辑)
|
||||
app.post('/api/favorites', (req, res) => {
|
||||
try {
|
||||
const { mode = 'chart', title = '', config = {}, image } = req.body || {};
|
||||
if (!['chart', 'table', 'combine'].includes(mode)) {
|
||||
return res.status(400).json({ error: 'mode 必须是 chart / table / combine' });
|
||||
}
|
||||
ensureFavDir();
|
||||
const id = genFavId();
|
||||
const createdAt = new Date().toISOString();
|
||||
|
||||
let imagePath = null;
|
||||
let width = 0, height = 0;
|
||||
|
||||
// 1) 优先保存前端回传的原图(原始大小)
|
||||
const buf = dataUrlToBuffer(image);
|
||||
if (buf) {
|
||||
imagePath = path.join(FAV_DIR, id + '.png');
|
||||
fs.writeFileSync(imagePath, buf);
|
||||
} else {
|
||||
// 2) 兜底:服务端按原始大小渲染
|
||||
try {
|
||||
const canvas = renderFavoriteImage(mode, config);
|
||||
imagePath = path.join(FAV_DIR, id + '.png');
|
||||
fs.writeFileSync(imagePath, canvas.toBuffer('image/png'));
|
||||
} catch (e) {
|
||||
console.warn('服务端渲染收藏图失败:', e.message);
|
||||
}
|
||||
}
|
||||
|
||||
if (imagePath && fs.existsSync(imagePath)) {
|
||||
try {
|
||||
const size = getPngSize(fs.readFileSync(imagePath));
|
||||
width = size.w; height = size.h;
|
||||
} catch (e) {}
|
||||
}
|
||||
|
||||
const fav = { id, mode, title, createdAt, width, height, config };
|
||||
const index = loadFavIndex();
|
||||
index.unshift(fav);
|
||||
saveFavIndex(index);
|
||||
|
||||
res.json({ ok: true, id, title, width, height, message: '收藏成功' });
|
||||
} catch (err) {
|
||||
console.error('Save favorite error:', err);
|
||||
res.status(500).json({ error: '收藏失败: ' + err.message });
|
||||
}
|
||||
});
|
||||
|
||||
// 收藏列表
|
||||
app.get('/api/favorites', (req, res) => {
|
||||
res.json({ ok: true, favorites: loadFavIndex() });
|
||||
});
|
||||
|
||||
// 单个收藏(含配置,用于编辑)
|
||||
app.get('/api/favorites/:id', (req, res) => {
|
||||
const id = req.params.id;
|
||||
if (!/^[A-Za-z0-9_]+$/.test(id)) return res.status(400).json({ error: '非法 id' });
|
||||
const fav = loadFavIndex().find(f => f.id === id);
|
||||
if (!fav) return res.status(404).json({ error: '收藏不存在' });
|
||||
res.json({ ok: true, favorite: fav });
|
||||
});
|
||||
|
||||
// 收藏原图
|
||||
app.get('/api/favorites/:id/image', (req, res) => {
|
||||
const id = req.params.id;
|
||||
if (!/^[A-Za-z0-9_]+$/.test(id)) return res.status(400).json({ error: '非法 id' });
|
||||
const imgPath = path.join(FAV_DIR, id + '.png');
|
||||
if (!fs.existsSync(imgPath)) return res.status(404).json({ error: '图片不存在' });
|
||||
const buf = fs.readFileSync(imgPath);
|
||||
res.set({
|
||||
'Content-Type': 'image/png',
|
||||
'Content-Length': buf.length,
|
||||
'Cache-Control': 'public, max-age=86400'
|
||||
});
|
||||
if (req.query.download === '1') {
|
||||
res.set('Content-Disposition', `attachment; filename="favorite_${id}.png"`);
|
||||
}
|
||||
res.send(buf);
|
||||
});
|
||||
|
||||
// 删除收藏
|
||||
app.delete('/api/favorites/:id', (req, res) => {
|
||||
const id = req.params.id;
|
||||
if (!/^[A-Za-z0-9_]+$/.test(id)) return res.status(400).json({ error: '非法 id' });
|
||||
const index = loadFavIndex();
|
||||
const next = index.filter(f => f.id !== id);
|
||||
if (next.length === index.length) return res.status(404).json({ error: '收藏不存在' });
|
||||
saveFavIndex(next);
|
||||
try {
|
||||
const p = path.join(FAV_DIR, id + '.png');
|
||||
if (fs.existsSync(p)) fs.unlinkSync(p);
|
||||
} catch (e) {}
|
||||
res.json({ ok: true, message: '已删除' });
|
||||
});
|
||||
|
||||
// ===== 启动服务 =====
|
||||
app.listen(PORT, '0.0.0.0', () => {
|
||||
console.log(`🚀 数据可视化图表生成器已启动`);
|
||||
console.log(`📊 Web UI: http://0.0.0.0:${PORT}`);
|
||||
console.log(`📡 图表API: http://0.0.0.0:${PORT}/api/chart`);
|
||||
console.log(`📋 表格API: http://0.0.0.0:${PORT}/api/table`);
|
||||
console.log(`🖼️ 合并API: http://0.0.0.0:${PORT}/api/combine`);
|
||||
console.log(`⭐ 收藏API: http://0.0.0.0:${PORT}/api/favorites`);
|
||||
console.log(`📖 文档: http://0.0.0.0:${PORT}/api/docs`);
|
||||
console.log(`❤️ 健康: http://0.0.0.0:${PORT}/api/health`);
|
||||
});
|
||||
@@ -205,7 +205,8 @@ body {
|
||||
|
||||
.config-group select,
|
||||
.config-group input[type="text"],
|
||||
.config-group input[type="number"] {
|
||||
.config-group input[type="number"],
|
||||
.config-group textarea {
|
||||
width: 100%;
|
||||
padding: 8px 12px;
|
||||
border: 1px solid var(--border);
|
||||
@@ -215,8 +216,15 @@ body {
|
||||
transition: border-color 0.2s;
|
||||
}
|
||||
|
||||
.config-group textarea {
|
||||
font-family: inherit;
|
||||
resize: vertical;
|
||||
min-height: 80px;
|
||||
}
|
||||
|
||||
.config-group select:focus,
|
||||
.config-group input:focus {
|
||||
.config-group input:focus,
|
||||
.config-group textarea:focus {
|
||||
outline: none;
|
||||
border-color: var(--primary);
|
||||
box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
|
||||
@@ -325,9 +333,18 @@ body {
|
||||
align-items: flex-start;
|
||||
}
|
||||
|
||||
.chart-container {
|
||||
/* 右侧主区域:原图预览 + 导出预览 上下排列 */
|
||||
.right-main {
|
||||
flex: 1;
|
||||
min-width: 0;
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
gap: 14px;
|
||||
}
|
||||
|
||||
.chart-container {
|
||||
flex: none;
|
||||
min-width: 0;
|
||||
background: var(--panel-bg);
|
||||
border-radius: var(--radius);
|
||||
padding: 20px;
|
||||
@@ -337,7 +354,7 @@ body {
|
||||
|
||||
.chart-area {
|
||||
width: 100%;
|
||||
height: 600px;
|
||||
height: 420px;
|
||||
}
|
||||
|
||||
.placeholder {
|
||||
@@ -370,7 +387,7 @@ body {
|
||||
}
|
||||
|
||||
.chart-area {
|
||||
height: 450px;
|
||||
height: 320px;
|
||||
}
|
||||
|
||||
/* 小屏幕下风格按钮回到图表下方 */
|
||||
@@ -428,6 +445,80 @@ body {
|
||||
color: white;
|
||||
}
|
||||
|
||||
/* ===== 双图合并 ===== */
|
||||
.combine-direction {
|
||||
display: flex;
|
||||
gap: 16px;
|
||||
flex-wrap: wrap;
|
||||
}
|
||||
|
||||
.dir-option {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 6px;
|
||||
padding: 8px 12px;
|
||||
border: 1px solid var(--border);
|
||||
border-radius: 8px;
|
||||
background: #f8fafc;
|
||||
cursor: pointer;
|
||||
font-size: 0.9rem;
|
||||
transition: all 0.2s;
|
||||
}
|
||||
|
||||
.dir-option:hover {
|
||||
border-color: var(--primary);
|
||||
}
|
||||
|
||||
.dir-option:has(input:checked) {
|
||||
border-color: var(--primary);
|
||||
background: #eef2ff;
|
||||
color: var(--primary);
|
||||
font-weight: 500;
|
||||
}
|
||||
|
||||
.combine-chart-card {
|
||||
border: 1px solid var(--border);
|
||||
border-radius: 10px;
|
||||
padding: 14px;
|
||||
margin-bottom: 14px;
|
||||
background: #f8fafc;
|
||||
}
|
||||
|
||||
.combine-chart-card h3 {
|
||||
font-size: 0.95rem;
|
||||
margin: 0;
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.combine-card-head {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: space-between;
|
||||
margin-bottom: 12px;
|
||||
padding-bottom: 8px;
|
||||
border-bottom: 1px dashed var(--border);
|
||||
}
|
||||
|
||||
.btn-remove {
|
||||
background: #fee2e2;
|
||||
color: #dc2626;
|
||||
border: none;
|
||||
border-radius: 6px;
|
||||
width: 24px;
|
||||
height: 24px;
|
||||
line-height: 1;
|
||||
font-size: 0.8rem;
|
||||
cursor: pointer;
|
||||
flex-shrink: 0;
|
||||
display: inline-flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
}
|
||||
|
||||
.btn-remove:hover {
|
||||
background: #fecaca;
|
||||
}
|
||||
|
||||
/* ===== 表格预览 ===== */
|
||||
.table-preview {
|
||||
width: 100%;
|
||||
@@ -560,3 +651,332 @@ input[type="range"]::-moz-range-thumb {
|
||||
background: #cbd5e1;
|
||||
border-radius: 2px;
|
||||
}
|
||||
|
||||
/* ===== 导出设置 ===== */
|
||||
.res-input-row {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 8px;
|
||||
}
|
||||
|
||||
.res-input-row input[type="number"] {
|
||||
flex: 1;
|
||||
min-width: 0;
|
||||
}
|
||||
|
||||
.res-times {
|
||||
color: var(--text-light);
|
||||
font-weight: 600;
|
||||
}
|
||||
|
||||
/* ===== 导出预览(按分辨率居中展示保存后的图) ===== */
|
||||
.export-preview-box {
|
||||
margin-top: 14px;
|
||||
border: 1px dashed var(--border);
|
||||
border-radius: 10px;
|
||||
background: #ffffff;
|
||||
padding: 10px;
|
||||
}
|
||||
|
||||
.export-preview-title {
|
||||
font-size: 0.85rem;
|
||||
font-weight: 600;
|
||||
color: var(--text-light);
|
||||
margin-bottom: 8px;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 6px;
|
||||
}
|
||||
|
||||
.export-preview-inner {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
min-height: 120px;
|
||||
background: repeating-conic-gradient(#f1f5f9 0% 25%, #ffffff 0% 50%) 0 0 / 20px 20px;
|
||||
border-radius: 8px;
|
||||
padding: 12px;
|
||||
overflow: auto;
|
||||
}
|
||||
|
||||
.export-preview-inner img {
|
||||
max-width: 100%;
|
||||
max-height: 300px;
|
||||
box-shadow: 0 4px 14px rgba(0,0,0,0.12);
|
||||
border-radius: 4px;
|
||||
background: #fff;
|
||||
}
|
||||
|
||||
.export-preview-size {
|
||||
font-size: 0.78rem;
|
||||
color: var(--primary);
|
||||
background: #eef2ff;
|
||||
border-radius: 4px;
|
||||
padding: 1px 8px;
|
||||
font-weight: 600;
|
||||
}
|
||||
|
||||
/* ===== 导出设置折叠栏 ===== */
|
||||
.export-header {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: space-between;
|
||||
gap: 8px;
|
||||
}
|
||||
|
||||
.export-header-main {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 10px;
|
||||
flex: 1;
|
||||
cursor: pointer;
|
||||
user-select: none;
|
||||
padding: 2px 0;
|
||||
}
|
||||
|
||||
.export-header h2 {
|
||||
font-size: 1rem;
|
||||
margin: 0;
|
||||
color: var(--text);
|
||||
}
|
||||
|
||||
.export-summary {
|
||||
font-size: 0.75rem;
|
||||
color: var(--primary);
|
||||
background: #eef2ff;
|
||||
padding: 2px 8px;
|
||||
border-radius: 10px;
|
||||
font-weight: 600;
|
||||
white-space: nowrap;
|
||||
}
|
||||
|
||||
.export-toggle {
|
||||
color: var(--text-light);
|
||||
font-size: 0.8rem;
|
||||
transition: transform 0.2s;
|
||||
}
|
||||
|
||||
.export-settings-body {
|
||||
margin-top: 12px;
|
||||
padding-top: 12px;
|
||||
border-top: 1px dashed var(--border);
|
||||
}
|
||||
|
||||
.btn-sm {
|
||||
padding: 4px 10px;
|
||||
font-size: 0.78rem;
|
||||
}
|
||||
|
||||
/* 导出设置折叠栏下载按钮(更小,避免挤占) */
|
||||
.export-header .btn-sm {
|
||||
flex: 0 0 auto;
|
||||
width: auto;
|
||||
padding: 3px 8px;
|
||||
font-size: 0.74rem;
|
||||
white-space: nowrap;
|
||||
}
|
||||
|
||||
/* ===== 收藏功能 ===== */
|
||||
.header-actions {
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
.btn-fav-outline {
|
||||
background: #fff7ed;
|
||||
color: #b45309;
|
||||
border: 1px solid #fcd34d;
|
||||
font-size: 0.88rem;
|
||||
}
|
||||
|
||||
.btn-fav-outline:hover {
|
||||
background: #ffedd5;
|
||||
border-color: #f59e0b;
|
||||
}
|
||||
|
||||
.btn-fav {
|
||||
background: #f59e0b;
|
||||
color: #fff;
|
||||
}
|
||||
|
||||
.btn-fav:hover {
|
||||
background: #d97706;
|
||||
}
|
||||
|
||||
.btn-fav:disabled {
|
||||
background: #fcd34d;
|
||||
cursor: wait;
|
||||
transform: none;
|
||||
}
|
||||
|
||||
/* 收藏区弹窗 */
|
||||
.fav-modal {
|
||||
display: none;
|
||||
position: fixed;
|
||||
inset: 0;
|
||||
z-index: 9999;
|
||||
background: rgba(15, 23, 42, 0.55);
|
||||
backdrop-filter: blur(3px);
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
padding: 24px;
|
||||
}
|
||||
|
||||
.fav-modal-box {
|
||||
width: min(1080px, 96vw);
|
||||
max-height: 88vh;
|
||||
background: #fff;
|
||||
border-radius: 16px;
|
||||
box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
overflow: hidden;
|
||||
}
|
||||
|
||||
.fav-modal-head {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: space-between;
|
||||
padding: 16px 22px;
|
||||
border-bottom: 1px solid var(--border);
|
||||
background: #fffbeb;
|
||||
}
|
||||
|
||||
.fav-modal-head h2 {
|
||||
margin: 0;
|
||||
font-size: 1.1rem;
|
||||
color: #92400e;
|
||||
}
|
||||
|
||||
.fav-modal-tip {
|
||||
padding: 8px 22px;
|
||||
font-size: 0.8rem;
|
||||
color: var(--text-light);
|
||||
background: #f8fafc;
|
||||
border-bottom: 1px solid var(--border);
|
||||
}
|
||||
|
||||
.fav-modal-tip #favCount {
|
||||
font-weight: 700;
|
||||
color: #b45309;
|
||||
}
|
||||
|
||||
.fav-list {
|
||||
padding: 18px 22px;
|
||||
overflow-y: auto;
|
||||
display: grid;
|
||||
grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
|
||||
gap: 16px;
|
||||
align-content: start;
|
||||
}
|
||||
|
||||
.fav-empty {
|
||||
grid-column: 1 / -1;
|
||||
text-align: center;
|
||||
padding: 60px 20px;
|
||||
color: var(--text-light);
|
||||
font-size: 0.95rem;
|
||||
}
|
||||
|
||||
.fav-card {
|
||||
border: 1px solid var(--border);
|
||||
border-radius: 12px;
|
||||
overflow: hidden;
|
||||
background: #fff;
|
||||
box-shadow: var(--shadow);
|
||||
transition: box-shadow 0.2s, transform 0.2s;
|
||||
}
|
||||
|
||||
.fav-card:hover {
|
||||
box-shadow: var(--shadow-lg);
|
||||
transform: translateY(-2px);
|
||||
}
|
||||
|
||||
.fav-card-img {
|
||||
position: relative;
|
||||
height: 200px;
|
||||
background: repeating-conic-gradient(#f1f5f9 0% 25%, #ffffff 0% 50%) 0 0 / 20px 20px;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
overflow: hidden;
|
||||
cursor: zoom-in;
|
||||
}
|
||||
|
||||
.fav-card-img img {
|
||||
max-width: 100%;
|
||||
max-height: 100%;
|
||||
object-fit: contain;
|
||||
}
|
||||
|
||||
.fav-badge {
|
||||
position: absolute;
|
||||
top: 8px;
|
||||
left: 8px;
|
||||
background: rgba(79, 70, 229, 0.9);
|
||||
color: #fff;
|
||||
font-size: 0.72rem;
|
||||
padding: 2px 8px;
|
||||
border-radius: 10px;
|
||||
font-weight: 600;
|
||||
}
|
||||
|
||||
.fav-card-body {
|
||||
padding: 10px 12px 12px;
|
||||
}
|
||||
|
||||
.fav-card-title {
|
||||
font-size: 0.9rem;
|
||||
font-weight: 600;
|
||||
color: var(--text);
|
||||
white-space: nowrap;
|
||||
overflow: hidden;
|
||||
text-overflow: ellipsis;
|
||||
margin-bottom: 4px;
|
||||
}
|
||||
|
||||
.fav-card-meta {
|
||||
font-size: 0.74rem;
|
||||
color: var(--text-light);
|
||||
margin-bottom: 8px;
|
||||
}
|
||||
|
||||
.fav-card-actions {
|
||||
display: flex;
|
||||
gap: 6px;
|
||||
align-items: center;
|
||||
}
|
||||
|
||||
.fav-card-actions .btn-sm {
|
||||
padding: 3px 10px;
|
||||
font-size: 0.75rem;
|
||||
flex: 0 0 auto;
|
||||
}
|
||||
|
||||
.fav-card-actions .btn-remove {
|
||||
margin-left: auto;
|
||||
}
|
||||
|
||||
/* Toast 提示 */
|
||||
#appToast {
|
||||
position: fixed;
|
||||
bottom: 28px;
|
||||
left: 50%;
|
||||
transform: translateX(-50%) translateY(20px);
|
||||
background: rgba(17, 24, 39, 0.92);
|
||||
color: #fff;
|
||||
padding: 10px 20px;
|
||||
border-radius: 10px;
|
||||
font-size: 0.88rem;
|
||||
z-index: 10000;
|
||||
opacity: 0;
|
||||
pointer-events: none;
|
||||
transition: opacity 0.25s, transform 0.25s;
|
||||
box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
|
||||
max-width: 80vw;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
#appToast.show {
|
||||
opacity: 1;
|
||||
transform: translateX(-50%) translateY(0);
|
||||
}
|
||||
Reference in New Issue
Block a user