feat: X轴轴名+刻度倾斜角度可调(默认水平) + 双Y轴图例按左右轴分组放到对应轴边上 v1.17.0

app.js

@@ -291,6 +291,8 @@ function updateChart() {
     const dualAxis = document.getElementById('dualAxis').checked;
     const leftAxisName = document.getElementById('leftAxisName').value;
     const rightAxisName = document.getElementById('rightAxisName').value;
+    const xAxisName = document.getElementById('xAxisName').value;
+    const xLabelRotate = parseInt(document.getElementById('xLabelRotate').value) || 0;
 
     // 饼图/雷达图：走专用构建逻辑（无坐标轴/网格，不支持双轴/堆叠/分割）
     if (chartType === 'pie' || chartType === 'radar') {
@@ -460,7 +462,46 @@ function updateChart() {
         window._splitConfig = null;
     }
 
-    // 图表配置
+    // 图表配置：双Y轴图例按左右轴分组放到对应轴边上，grid 相应让位
+    let legendConfig, gridLeftCfg, gridRightCfg;
+    if (dualAxis && showLegend) {
+        const left = [], right = [];
+        seriesOrder.forEach(origIdx => {
+            const name = parsedData.seriesNames[origIdx];
+            (seriesAxis[origIdx] === 1 ? right : left).push(name);
+        });
+        legendConfig = [
+            {
+                show: left.length > 0,
+                orient: 'vertical', left: 8,
+                top: title ? 56 : 24,
+                data: left,
+                title: left.length > 1 ? { text: '左轴', textStyle: { color: textColor, fontSize: 11, fontWeight: 600 } } : undefined,
+                textStyle: { color: textColor, fontSize: 12 }, itemGap: 10, icon: 'roundRect'
+            },
+            {
+                show: right.length > 0,
+                orient: 'vertical', right: 8,
+                top: title ? 56 : 24,
+                data: right,
+                title: right.length > 1 ? { text: '右轴', textStyle: { color: textColor, fontSize: 11, fontWeight: 600 } } : undefined,
+                textStyle: { color: textColor, fontSize: 12 }, itemGap: 10, icon: 'roundRect'
+            }
+        ];
+        gridLeftCfg = measureLegendWidth(left) + 30;
+        gridRightCfg = measureLegendWidth(right) + 30;
+    } else {
+        legendConfig = showLegend ? {
+            show: true,
+            top: title ? 50 : 15,
+            textStyle: { color: textColor, fontSize: 12 },
+            itemGap: 20,
+            icon: 'roundRect'
+        } : { show: false };
+        gridLeftCfg = '3%';
+        gridRightCfg = '4%';
+    }
+
     const option = {
         backgroundColor: bgColor,
         title: title ? {
@@ -494,29 +535,26 @@ function updateChart() {
                 return html;
             }
         },
-        legend: showLegend ? {
-            show: true,
-            top: title ? 50 : 15,
-            textStyle: { color: textColor, fontSize: 12 },
-            itemGap: 20,
-            icon: 'roundRect'
-        } : { show: false },
+        legend: legendConfig,
         grid: {
-            left: '3%',
-            right: '4%',
+            left: gridLeftCfg,
+            right: gridRightCfg,
             bottom: '3%',
-            top: showLegend ? (title ? 90 : 60) : (title ? 60 : 30),
+            top: dualAxis ? (title ? 52 : 24) : (showLegend ? (title ? 90 : 60) : (title ? 60 : 30)),
             containLabel: true
         },
         xAxis: {
             type: 'category',
+            name: xAxisName,
+            nameGap: 20,
+            nameTextStyle: { color: textColor, fontSize: 12, fontWeight: 600 },
             data: parsedData.categories,
             axisLine: { lineStyle: { color: axisLineColor } },
-            axisLabel: { 
-                color: textColor, 
+            axisLabel: {
+                color: textColor,
                 fontSize: 12,
                 interval: 0,
-                rotate: parsedData.categories.length > 10 ? 30 : 0
+                rotate: xLabelRotate
             },
             axisTick: { show: false }
         },
@@ -752,6 +790,18 @@ function updateSeriesAxis(origIdx, axis) {
 }
 
 // ===== 工具函数 =====
+// 测量图例文字宽度（用于双轴侧边图例的 grid 让位）
+function measureLegendWidth(names, fontSize) {
+    fontSize = fontSize || 12;
+    if (!names || !names.length) return 0;
+    const c = document.createElement('canvas');
+    const ctx = c.getContext('2d');
+    ctx.font = `${fontSize}px sans-serif`;
+    let max = 0;
+    names.forEach(n => { const w = ctx.measureText(n).width; if (w > max) max = w; });
+    return Math.ceil(max + 44); // 图标(14)+间距(6)+边距(24)
+}
+
 function adjustColor(hex, amount) {
     hex = hex.replace('#', '');
     const num = parseInt(hex, 16);
@@ -1186,7 +1236,8 @@ function buildCombineChartOption(dataText, cfg) {
         title = '', chartType = 'bar', theme = 'default',
         showLegend = true, showGrid = true, showLabel = false,
         stackMode = false, smoothLine = true,
-        dualYAxis = false, leftAxisName = '', rightAxisName = '', seriesConfig = null
+        dualYAxis = false, leftAxisName = '', rightAxisName = '', seriesConfig = null,
+        xAxisName = '', xLabelRotate = 0
     } = cfg;
 
     const bgColor = theme === 'dark' ? '#1a1a2e' : '#ffffff';
@@ -1254,10 +1305,11 @@ function buildCombineChartOption(dataText, cfg) {
         }
     }
 
+    const scMap = {};
+    (Array.isArray(seriesConfig) ? seriesConfig : []).forEach(s => { if (s && s.name) scMap[s.name] = s; });
+
     const series = parsed.seriesNames.map((name, idx) => {
         const color = palette[idx % palette.length];
-        const scMap = {};
-        (Array.isArray(seriesConfig) ? seriesConfig : []).forEach(s => { if (s && s.name) scMap[s.name] = s; });
         const sc = scMap[name] || {};
         let type = chartType === 'bar-line' ? (idx % 2 === 0 ? 'bar' : 'line') : chartType;
         if (sc.type && sc.type !== 'auto') type = sc.type;
@@ -1309,6 +1361,46 @@ function buildCombineChartOption(dataText, cfg) {
         return s;
     });
 
+    // 双Y轴图例按左右轴分组放到对应轴边上，grid 相应让位
+    let legendCfg, gridLeftCfg, gridRightCfg;
+    if (dualYAxis && showLegend) {
+        const left = [], right = [];
+        parsed.seriesNames.forEach(name => {
+            const sc = scMap[name] || {};
+            ((sc.axis === 1 || sc.axis === '1') ? right : left).push(name);
+        });
+        legendCfg = [
+            {
+                show: left.length > 0,
+                orient: 'vertical', left: 6,
+                top: title ? 44 : 12,
+                data: left,
+                title: left.length > 1 ? { text: '左轴', textStyle: { color: textColor, fontSize: 10, fontWeight: 600 } } : undefined,
+                textStyle: { color: textColor, fontSize: 11 }, itemGap: 8, icon: 'roundRect'
+            },
+            {
+                show: right.length > 0,
+                orient: 'vertical', right: 6,
+                top: title ? 44 : 12,
+                data: right,
+                title: right.length > 1 ? { text: '右轴', textStyle: { color: textColor, fontSize: 10, fontWeight: 600 } } : undefined,
+                textStyle: { color: textColor, fontSize: 11 }, itemGap: 8, icon: 'roundRect'
+            }
+        ];
+        gridLeftCfg = Math.min(measureLegendWidth(left, 11) + 24, 200);
+        gridRightCfg = Math.min(measureLegendWidth(right, 11) + 24, 200);
+    } else {
+        legendCfg = showLegend ? {
+            show: true,
+            top: title ? 40 : 10,
+            textStyle: { color: textColor, fontSize: 12 },
+            itemGap: 20,
+            icon: 'roundRect'
+        } : { show: false };
+        gridLeftCfg = '3%';
+        gridRightCfg = '4%';
+    }
+
     return {
         backgroundColor: bgColor,
         title: title ? {
@@ -1323,23 +1415,20 @@ function buildCombineChartOption(dataText, cfg) {
             borderColor: theme === 'dark' ? '#555' : '#eee',
             textStyle: { color: textColor }
         },
-        legend: showLegend ? {
-            show: true,
-            top: title ? 40 : 10,
-            textStyle: { color: textColor, fontSize: 12 },
-            itemGap: 20,
-            icon: 'roundRect'
-        } : { show: false },
+        legend: legendCfg,
         grid: {
-            left: '3%', right: '4%', bottom: '3%',
-            top: showLegend ? (title ? 70 : 45) : (title ? 50 : 30),
+            left: gridLeftCfg, right: gridRightCfg, bottom: '3%',
+            top: dualYAxis ? (title ? 44 : 16) : (showLegend ? (title ? 70 : 45) : (title ? 50 : 30)),
             containLabel: true
         },
         xAxis: {
             type: 'category',
+            name: xAxisName,
+            nameGap: 16,
+            nameTextStyle: { color: textColor, fontSize: 11, fontWeight: 600 },
             data: parsed.categories,
             axisLine: { lineStyle: { color: axisLineColor } },
-            axisLabel: { color: textColor, fontSize: 11, interval: 0, rotate: parsed.categories.length > 10 ? 30 : 0 },
+            axisLabel: { color: textColor, fontSize: 11, interval: 0, rotate: xLabelRotate },
             axisTick: { show: false }
         },
         yAxis: dualYAxis ? [
@@ -1386,7 +1475,7 @@ function measureCombineChart(dataText, rowsAsSeries) {
 let combineCharts = [];
 
 function defaultCombineChart() {
-    return { title: '', type: 'bar', theme: 'default', legend: true, grid: true, label: false, stack: false, data: '', rowsAsSeries: false, dualYAxis: false, leftAxisName: '', rightAxisName: '', seriesConfig: [] };
+    return { title: '', type: 'bar', theme: 'default', legend: true, grid: true, label: false, stack: false, data: '', rowsAsSeries: false, dualYAxis: false, leftAxisName: '', rightAxisName: '', seriesConfig: [], xAxisName: '', xLabelRotate: 0 };
 }
 
 function initCombineCharts() {
@@ -1453,6 +1542,15 @@ function renderCombineCharts() {
                     <input type="text" value="${escHtml(c.rightAxisName)}" placeholder="右轴，如：增长率(%)" oninput="updateCombineChart(${i},'rightAxisName',this.value)">
                 </div>
             </div>` : ''}
+            <div class="config-group">
+                <label>X轴设置（轴名 · 刻度倾斜°）</label>
+                <div class="res-input-row">
+                    <input type="text" value="${escHtml(c.xAxisName || '')}" placeholder="轴名，如：月份" oninput="updateCombineChart(${i},'xAxisName',this.value)">
+                    <span class="res-times">·</span>
+                    <input type="number" min="0" max="90" step="5" value="${c.xLabelRotate || 0}" style="width:64px" title="刻度文字倾斜角度(0-90°)" oninput="updateCombineChart(${i},'xLabelRotate',this.value)">
+                    <span class="res-times">°</span>
+                </div>
+            </div>
             <div class="config-group">
                 <label>系列图表类型 / 坐标轴</label>
                 <div class="combine-series-cfg" id="combineSeriesCfg${i}">${renderCombineSeriesConfigHTML(i)}</div>
@@ -1587,6 +1685,7 @@ function generateCombine() {
             showLegend: sharedLegend ? false : c.legend, showGrid: c.grid, showLabel: c.label, stackMode: c.stack,
             rowsAsSeries: !!c.rowsAsSeries,
             dualYAxis: !!c.dualYAxis, leftAxisName: c.leftAxisName || '', rightAxisName: c.rightAxisName || '',
+            xAxisName: c.xAxisName || '', xLabelRotate: parseInt(c.xLabelRotate) || 0,
             seriesConfig: c.seriesConfig
         });
         if (!option) { reject(new Error('数据格式错误')); return; }
@@ -1755,6 +1854,8 @@ function collectChartConfig() {
         dualAxis: document.getElementById('dualAxis').checked,
         leftAxisName: document.getElementById('leftAxisName').value,
         rightAxisName: document.getElementById('rightAxisName').value,
+        xAxisName: document.getElementById('xAxisName').value,
+        xLabelRotate: parseInt(document.getElementById('xLabelRotate').value) || 0,
         enableSplit: document.getElementById('enableSplit').checked,
         splitIndex: parseInt(document.getElementById('splitIndex').value) || 3,
         leftLabel: document.getElementById('leftLabel').value,
@@ -1961,6 +2062,8 @@ function applyFavoriteConfig(fav) {
         document.getElementById('dualAxis').checked = !!cfg.dualAxis;
         document.getElementById('leftAxisName').value = cfg.leftAxisName || '';
         document.getElementById('rightAxisName').value = cfg.rightAxisName || '';
+        document.getElementById('xAxisName').value = cfg.xAxisName || '';
+        document.getElementById('xLabelRotate').value = cfg.xLabelRotate || 0;
         document.getElementById('enableSplit').checked = !!cfg.enableSplit;
         document.getElementById('splitIndex').value = cfg.splitIndex || 3;
         document.getElementById('leftLabel').value = cfg.leftLabel || '';

index.html

@@ -80,6 +80,17 @@ C, 20, 30, 40</pre>
                         <input type="text" id="chartTitle" placeholder="图表标题" oninput="updateChart()">
                     </div>
 
+                    <div class="config-group">
+                        <label>X轴设置（轴名 · 刻度倾斜角度）</label>
+                        <div class="res-input-row">
+                            <input type="text" id="xAxisName" placeholder="横坐标轴名，如：月份" oninput="updateChart()">
+                            <span class="res-times">·</span>
+                            <input type="number" id="xLabelRotate" min="0" max="90" step="5" value="0" style="width:70px" title="刻度文字倾斜角度(0-90°)" oninput="updateChart()">
+                            <span class="res-times">°</span>
+                        </div>
+                        <p class="hint-text">轴名可留空不显示；刻度方向：0°=水平（默认），45°=右上倾斜，90°=竖直，实时生效</p>
+                    </div>
+
                     <div class="config-group">
                         <label>主题风格</label>
                         <select id="themeStyle" onchange="syncThemeButtons(this.value); updateChart()">