公共监测台矩阵热力图
在公共监测台场景中完成矩阵热力图：包含真实内容、可操作控件、清晰状态反馈和跨尺寸布局。
启用 JavaScript 后可编辑、运行和保存此案例。固定源码如下：
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<title>公共监测台矩阵热力图</title>
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.canvas-shell{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(230px,.6fr);gap:16px}.canvas-shell canvas{width:100%;height:440px;border:1px solid var(--line);border-radius:18px;background:var(--ink)}.canvas-tools{display:grid;align-content:center;gap:16px}.canvas-tools label{display:grid;gap:8px;font-weight:800}@media(max-width:900px){.canvas-shell{grid-template-columns:1fr}.canvas-shell canvas{height:300px}}.drawing-pattern{display:grid;gap:14px}.heatmap-controller{display:grid;grid-template-columns:1fr 180px 210px auto auto;gap:15px;align-items:center;padding:18px;background:repeating-linear-gradient(90deg,color-mix(in srgb,var(--accent) 9%,transparent) 0 24px,transparent 24px 48px),var(--paper)}.heatmap-controller h3{margin:.2em 0}.heatmap-controller label{display:grid;grid-template-columns:1fr auto;gap:6px}.heatmap-controller label select,.heatmap-controller label input[type="range"]{grid-column:1/-1}.heatmap-normalize{display:flex!important}.heatmap-controller>output{padding:8px 12px;color:var(--paper);background:linear-gradient(90deg,var(--secondary),var(--accent))}@media(max-width:900px){.heatmap-controller{grid-template-columns:1fr 1fr}.heatmap-controller header{grid-column:1/-1}}.workflow-spatial{display:grid;gap:16px}.workflow-spatial>header{display:grid;grid-template-columns:1fr minmax(170px,.35fr) minmax(170px,.35fr);gap:18px;align-items:end;padding-bottom:16px;border-bottom:5px solid var(--ink)}.workflow-spatial h2{margin:.2em 0}.workflow-spatial header label{display:grid;grid-template-columns:1fr auto;gap:7px}.workflow-spatial header input{grid-column:1/-1;width:100%}.spatial-grid{display:grid;grid-template-columns:minmax(0,var(--spatial-width)) 20px minmax(180px,1fr);gap:0;align-items:stretch}.spatial-core{min-width:0;transform:scale(var(--spatial-zoom));transform-origin:top left;transition:transform .2s}.spatial-handle{display:grid;min-height:300px;place-items:center;border:0;border-inline:1px dashed var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent);cursor:col-resize}.spatial-grid>aside{display:grid;align-content:center;gap:14px;padding:22px;background:color-mix(in srgb,var(--secondary) 14%,var(--paper))}.spatial-grid>aside strong{font-size:clamp(24px,4vw,42px)}@media(max-width:900px){.workflow-spatial>header{grid-template-columns:1fr}.spatial-grid{order:-1;grid-template-columns:1fr}.spatial-handle{min-height:44px;cursor:row-resize}.spatial-core{transform:none}}
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<body data-aesthetic="playful" data-composition="studio">
<main class="page">
<header class="mast"><div><span class="eyebrow">playful / 矩阵热力图 / INTERMEDIATE</span><h1>公共监测台矩阵热力图</h1><p class="intro">在公共监测台场景中完成矩阵热力图：包含真实内容、可操作控件、清晰状态反馈和跨尺寸布局。</p></div><span class="scenario">公共监测台</span></header>
<div class="composition-studio"><div class="studio-ruler" aria-hidden="true"></div><section class="demo" aria-label="公共监测台矩阵热力图交互区域"><div id="workflowSpatial" class="workflow-spatial" style="--spatial-width:64%;--spatial-zoom:1"><header><div><span class="eyebrow">公共监测台 SPATIAL CANVAS</span><h2>公共监测台调整台</h2></div><label>观察阈值占比<input id="workflowSpatialWidth" type="range" min="38" max="82" value="64"><output id="workflowSpatialWidthValue">64%</output></label><label>内容缩放<input id="workflowSpatialZoom" type="range" min="80" max="120" value="100"><output id="workflowSpatialZoomValue">100%</output></label></header><div class="spatial-grid"><section id="workflowCore" class="workflow-core spatial-core"><!-- 11DZ_CORE_START:drawing-data-viz-heatmap-grid --><div class="drawing-pattern drawing-pattern-6"><div class="canvas-shell"><canvas id="artboard" width="900" height="440" aria-label="矩阵热力图画布" aria-describedby="canvasDescription"></canvas><div class="canvas-tools panel"><span class="eyebrow">CANVAS MODE 7</span><h2>矩阵热力图</h2><label>复杂度 <input id="canvasAmount" type="range" min="4" max="28" value="28"></label><button id="redrawCanvas" class="action primary" type="button">重新绘制</button><p id="canvasDescription" class="muted">深色画布使用两种高对比色绘制矩阵热力图，复杂度滑块决定图形数量；画面完全在浏览器本地生成。</p></div></div><section class="drawing-controller heatmap-controller"><header><span class="eyebrow">MATRIX SCALE</span><h3>公共监测台热力矩阵</h3></header><label>色阶<select id="heatmapPalette"><option value="sequential">连续色阶</option><option value="diverging">发散色阶</option><option value="threshold">阈值色阶</option></select></label><label>矩阵边长<input id="heatmapCells" type="range" min="4" max="12" value="8" data-core-bridge="drawing-data-viz-heatmap-grid"><output id="heatmapCellsValue">8 × 8</output></label><label class="heatmap-normalize"><input id="heatmapNormalize" type="checkbox">按行归一化</label><output id="heatmapLegend">低 → 高</output></section></div><!-- 11DZ_CORE_END --></section><input id="workflowSpatialHandle" class="spatial-handle" type="button" value="↔" aria-label="拖动调整主案例预览宽度"><aside><strong>公共监测台当前视图</strong><p>公共监测台比较视图与公共监测台汇总视图会随画布尺寸重新编排。</p><output id="workflowSpatialStatus">宽度 64%，缩放 100%</output><input id="workflowSpatialApply" class="action primary" type="button" value="保存视图"></aside></div></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
</main>
<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:drawing-data-viz-heatmap-grid */
const canvas = document.querySelector('#artboard'); const context = canvas.getContext('2d'); const amount = document.querySelector('#canvasAmount'); let drawSeed = 2241850352;
function random(){ drawSeed = (drawSeed * 1664525 + 1013904223) >>> 0; return drawSeed / 4294967296; }
function drawCanvas(){ const rect = canvas.getBoundingClientRect(); const ratio = Math.min(2,window.devicePixelRatio || 1); canvas.width = Math.max(320,Math.round(rect.width * ratio)); canvas.height = Math.max(240,Math.round(rect.height * ratio)); context.setTransform(ratio,0,0,ratio,0,0); const width = rect.width; const height = rect.height; context.clearRect(0,0,width,height); context.fillStyle = '#18332f'; context.fillRect(0,0,width,height); const drawingFactor=Number(canvas.dataset.drawingFactor||1); const count=Math.max(1,Math.round(Number(amount.value)*drawingFactor)); drawSeed += 1+Number(canvas.dataset.drawingShift||0); context.globalCompositeOperation=canvas.dataset.drawingBlend||'source-over';
for(let index=0; index<count; index+=1){ const x=random()*width; const y=random()*height; const size=(10+random()*70)*Math.max(.45,drawingFactor); context.beginPath(); context.strokeStyle=index%2?'#d45f3e':'#8fc4ad'; context.fillStyle=context.strokeStyle+'88'; context.lineWidth=(2+random()*4)*Math.max(.6,drawingFactor);
const cell=Math.max(12,width/Math.ceil(Math.sqrt(count))); context.globalAlpha=.25+random()*.7; context.fillRect((index%8)*cell,Math.floor(index/8)*cell,cell-3,cell-3); context.globalAlpha=1;
} context.globalCompositeOperation='source-over'; announce('画布已生成 ' + count + ' 个图形元素'); }
document.querySelector('#redrawCanvas').addEventListener('click',drawCanvas); amount.addEventListener('input',drawCanvas); addEventListener('resize',drawCanvas,{passive:true}); drawCanvas();
const heatmapPalette=document.querySelector('#heatmapPalette');const heatmapCells=document.querySelector('#heatmapCells');const heatmapNormalize=document.querySelector('#heatmapNormalize');const heatmapState={palette:'sequential',side:8,normalize:false};function reshapeHeatmap(){heatmapState.palette=heatmapPalette.value;heatmapState.side=Number(heatmapCells.value);heatmapState.normalize=heatmapNormalize.checked;document.querySelector('#heatmapCellsValue').textContent=heatmapState.side+' × '+heatmapState.side;document.querySelector('#heatmapLegend').textContent={sequential:'低 → 高',diverging:'负 ← 中心 → 正',threshold:'正常 / 关注 / 风险'}[heatmapState.palette];amount.value=String(Math.min(Number(amount.max),Math.max(Number(amount.min),heatmapState.side)));canvas.dataset.drawingFactor=String(heatmapState.normalize?.82:1.08);canvas.dataset.drawingShift=String(['sequential','diverging','threshold'].indexOf(heatmapState.palette)*31+heatmapState.side);canvas.dataset.drawingBlend=heatmapState.palette==='diverging'?'screen':'source-over';drawCanvas();}heatmapPalette.addEventListener('change',reshapeHeatmap);heatmapCells.addEventListener('input',reshapeHeatmap);heatmapNormalize.addEventListener('change',reshapeHeatmap);reshapeHeatmap();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"drawing-data-viz-heatmap-grid","selector":"[data-core-bridge=\"drawing-data-viz-heatmap-grid\"]","mode":"range","key":"ArrowRight"};const workflowBridgeCore=document.querySelector('#workflowCore');const workflowBridgeControl=workflowBridgeCore.querySelector(workflowBridgeSpec.selector);if(!workflowBridgeControl)throw new Error('Missing core bridge: '+workflowBridgeSpec.name);const workflowBridgeControlledId=workflowBridgeControl.getAttribute('aria-controls');const workflowBridgeControlled=workflowBridgeControlledId?document.getElementById(workflowBridgeControlledId):null;workflowBridgeCore.dataset.workflowBridge=workflowBridgeSpec.name;workflowBridgeCore.dataset.workflowVersion='0';function workflowBridgeSerialize(){const visualNode=workflowBridgeCore.firstElementChild||workflowBridgeCore;const visual=getComputedStyle(visualNode);const outputs=[...workflowBridgeCore.querySelectorAll('output,[role="status"],[aria-live],meter,progress')].map(node=>node.textContent.trim()+'|'+node.getAttribute('aria-valuenow')+'|'+node.getAttribute('value'));const canvas=[...workflowBridgeCore.querySelectorAll('canvas')].map(node=>{try{return node.toDataURL().slice(-160);}catch{return 'canvas-unavailable';}});return JSON.stringify({html:workflowBridgeCore.innerHTML,status:statusOutput.textContent,outputs,canvas,visual:[visual.display,visual.visibility,visual.opacity,visual.transform,visual.filter,visual.backgroundColor,visual.width,visual.height],scroll:workflowBridgeSpec.mode==='scroll'?workflowBridgeControl.scrollTop:null});}let workflowBridgeLastEffect=workflowBridgeSerialize();function workflowBridgeSummary(){const label=(workflowBridgeControl.getAttribute('aria-label')||workflowBridgeControl.textContent||workflowBridgeControl.value||workflowBridgeSpec.name).trim().replace(/\s+/g,' ').slice(0,72);return label+' · 核心版本 '+workflowBridgeCore.dataset.workflowVersion;}function workflowBridgeCommit(){const effect=workflowBridgeSerialize();if(effect===workflowBridgeLastEffect)return {changed:false,summary:workflowBridgeSummary()};workflowBridgeLastEffect=effect;workflowBridgeCore.dataset.workflowVersion=String(Number(workflowBridgeCore.dataset.workflowVersion||0)+1);return {changed:true,summary:workflowBridgeSummary()};}function workflowBridgeScheduleCommit(){queueMicrotask(workflowBridgeCommit);setTimeout(workflowBridgeCommit,0);}workflowBridgeControl.addEventListener("input",workflowBridgeScheduleCommit);workflowBridgeControl.addEventListener('change',workflowBridgeScheduleCommit);const workflowBridgeStateTargets=new Set(workflowBridgeCore.querySelectorAll('dialog'));if(workflowBridgeControlled&&workflowBridgeCore.contains(workflowBridgeControlled))workflowBridgeStateTargets.add(workflowBridgeControlled);workflowBridgeStateTargets.forEach(target=>['close','cancel','toggle'].forEach(eventName=>target.addEventListener(eventName,workflowBridgeScheduleCommit)));function workflowBridgeActivate(){workflowBridgeControl.focus();const step=Number(workflowBridgeControl.step)||1;const min=workflowBridgeControl.min===''?-Infinity:Number(workflowBridgeControl.min);const max=workflowBridgeControl.max===''?Infinity:Number(workflowBridgeControl.max);let next=Math.min(max,Math.max(min,(Number(workflowBridgeControl.value)||0)+step));if(next===Number(workflowBridgeControl.value))next=Math.max(min,Number(workflowBridgeControl.value)-step);workflowBridgeControl.value=String(next);workflowBridgeControl.dispatchEvent(new Event('input',{bubbles:true}));workflowBridgeControl.dispatchEvent(new Event('change',{bubbles:true}));const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
const workflowSpatial=document.querySelector('#workflowSpatial');const workflowSpatialCore=document.querySelector('#workflowCore');const workflowSpatialWidth=document.querySelector('#workflowSpatialWidth');const workflowSpatialZoom=document.querySelector('#workflowSpatialZoom');const workflowSpatialHandle=document.querySelector('#workflowSpatialHandle');const workflowSpatialState={width:64,zoom:1,dragging:false};function workflowSpatialDrive(){workflowSpatial.style.setProperty('--spatial-width',workflowSpatialState.width+'%');workflowSpatial.style.setProperty('--spatial-zoom',String(workflowSpatialState.zoom));workflowSpatialWidth.value=String(workflowSpatialState.width);workflowSpatialZoom.value=String(Math.round(workflowSpatialState.zoom*100));document.querySelector('#workflowSpatialWidthValue').textContent=workflowSpatialState.width+'%';document.querySelector('#workflowSpatialZoomValue').textContent=Math.round(workflowSpatialState.zoom*100)+'%';document.querySelector('#workflowSpatialStatus').textContent='宽度 '+workflowSpatialState.width+'%，缩放 '+Math.round(workflowSpatialState.zoom*100)+'%';announce('公共监测台画布已重排');}workflowSpatialWidth.addEventListener('input',()=>{workflowSpatialState.width=Number(workflowSpatialWidth.value);workflowSpatialDrive();});workflowSpatialZoom.addEventListener('input',()=>{workflowSpatialState.zoom=Number(workflowSpatialZoom.value)/100;workflowSpatialDrive();});workflowSpatialHandle.addEventListener('pointerdown',event=>{workflowSpatialState.dragging=true;workflowSpatialHandle.setPointerCapture(event.pointerId);});workflowSpatialHandle.addEventListener('pointermove',event=>{if(!workflowSpatialState.dragging)return;const rect=workflowSpatial.getBoundingClientRect();workflowSpatialState.width=Math.max(38,Math.min(82,Math.round((event.clientX-rect.left)/rect.width*100)));workflowSpatialDrive();});workflowSpatialHandle.addEventListener('pointerup',event=>{workflowSpatialState.dragging=false;workflowSpatialHandle.releasePointerCapture(event.pointerId);});workflowSpatialHandle.addEventListener('wheel',event=>{event.preventDefault();workflowSpatialState.zoom=Math.max(.8,Math.min(1.2,workflowSpatialState.zoom+(event.deltaY<0?.05:-.05)));workflowSpatialDrive();},{passive:false});workflowSpatialHandle.addEventListener('keydown',event=>{if(!['ArrowLeft','ArrowRight'].includes(event.key))return;event.preventDefault();workflowSpatialState.width=Math.max(38,Math.min(82,workflowSpatialState.width+(event.key==='ArrowRight'?2:-2)));workflowSpatialDrive();});document.querySelector('#workflowSpatialApply').addEventListener('click',()=>{const bridge=workflowBridgeActivate();document.querySelector('#workflowSpatialStatus').textContent='已保存视图 · 宽度 '+workflowSpatialState.width+'%，缩放 '+Math.round(workflowSpatialState.zoom*100)+'% · '+bridge.summary;announce(document.querySelector('#workflowSpatialStatus').textContent);});workflowSpatialDrive();
workflowBridgeReset();
</script>
</body>
</html>