Dessin et visualisation de données

Graphe de relations pour la qualité de l’air

Réalisez un graphe de nœuds relationnels dans un contexte de qualité de l’air : contenu réaliste, contrôles interactifs, retour d’état clair et mise en page adaptée à différentes tailles.

Dessin et visualisation de donnéesCarte des nœuds de relationHTMLCanvasJavaScript
Après activation de JavaScript, ce cas peut être modifié, exécuté et enregistré. Code source fixe ci-dessous :
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  <title>Graphe de relations pour la qualité de l’air</title>
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    <header class="mast"><div><span class="eyebrow">monochrome / graphe de nœuds relationnels / BEGINNER</span><h1>Graphe de relations pour la qualité de l’air</h1><p class="intro">Réalisez un graphe de nœuds relationnels dans un contexte de qualité de l’air : contenu réaliste, contrôles interactifs, retour d’état clair et mise en page adaptée à différentes tailles.</p></div><span class="scenario">Qualité de l’air</span></header>
    <div class="composition-studio"><div class="studio-ruler" aria-hidden="true"></div><section class="demo" aria-label="Zone interactive du graphe de nœuds de relations sur la qualité de l’air"><div class="workflow-dispatch"><aside class="dispatch-console"><span class="eyebrow">Qualité de l’air DISPATCH</span><h2>Tableau de commande des stations d’air</h2><form id="workflowDispatchForm"><label>Type de tâche<select id="workflowDispatchKind"><option>Station routière</option><option>Station du parc</option><option>Communauté</option></select></label><label>AQI seuil<input id="workflowDispatchAmount" type="number" min="1" max="9999" value="42"><span>AQI</span></label><fieldset><legend>Priorité de traitement</legend><label><input type="radio" name="workflowPriority" value="normal" checked>Standard</label><label><input type="radio" name="workflowPriority" value="urgent">Urgent</label></fieldset><button class="action primary" type="submit">Démarrer la surveillance</button></form><label>Tâche en cours<select id="workflowDispatchActive" aria-label="Basculer la tâche en cours"><option value="1">Station routière</option><option value="2">Station du parc</option></select></label><output id="workflowDispatchSummary">En attente de planification</output></aside><section id="workflowCore" class="workflow-core dispatch-workbench" data-dispatch-priority="normal"><!-- 11DZ_CORE_START:drawing-data-viz-node-map --><div class="drawing-pattern drawing-pattern-8"><div class="canvas-shell"><canvas id="artboard" width="900" height="440" aria-label="Canvas du graphe de nœuds relationnels" aria-describedby="canvasDescription"></canvas><div class="canvas-tools panel"><span class="eyebrow">CANVAS MODE 9</span><h2>Carte des nœuds de relation</h2><label>complexité <input id="canvasAmount" type="range" min="4" max="28" value="34"></label><button id="redrawCanvas" class="action primary" type="button">Redessiner</button><p id="canvasDescription" class="muted">Sur une toile sombre, un graphe de relations est dessiné avec deux couleurs très contrastées, et le curseur de complexité détermine le nombre d’éléments ; tout est généré localement dans le navigateur.</p></div></div><section class="drawing-controller node-controller"><header><span class="eyebrow">NETWORK PHYSICS</span><h3>Réseau des relations de la qualité de l’air</h3></header><label>Intensité de la connexion<input id="nodeStrength" type="range" min="1" max="10" value="6" data-core-bridge="drawing-data-viz-node-map"><output id="nodeStrengthValue">6</output></label><label><input id="nodeLabels" type="checkbox" checked>Afficher les étiquettes des nœuds</label><button id="nodeRelax" class="action" type="button">Réseau relâché</button><output id="nodeNetworkStatus">Connexion stable · niveau 6</output></section></div><!-- 11DZ_CORE_END --></section></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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      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?'#e6a23c':'#a8a1d8'; context.fillStyle=context.strokeStyle+'88'; context.lineWidth=(2+random()*4)*Math.max(.6,drawingFactor);
        context.moveTo(x,y); context.lineTo(width/2+(random()-.5)*width*.45,height/2+(random()-.5)*height*.45); context.stroke(); context.beginPath(); context.arc(x,y,5+random()*8,0,Math.PI*2); context.fill();
      } context.globalCompositeOperation='source-over'; announce('Le canevas a été généré ' + count + ' éléments graphiques'); }
    document.querySelector('#redrawCanvas').addEventListener('click',drawCanvas); amount.addEventListener('input',drawCanvas); addEventListener('resize',drawCanvas,{passive:true}); drawCanvas();
const nodeStrength=document.querySelector('#nodeStrength');const nodeLabels=document.querySelector('#nodeLabels');const nodePhysics={strength:6,labels:true,relaxation:0};function solveNodeNetwork(){nodePhysics.strength=Number(nodeStrength.value);nodePhysics.labels=nodeLabels.checked;document.querySelector('#nodeStrengthValue').textContent=nodePhysics.strength;document.querySelector('#nodeNetworkStatus').textContent=(nodePhysics.labels?'avec étiquette':'graphique pur')+' · '+nodePhysics.strength+' Connexion par degrés · relâchement '+nodePhysics.relaxation;canvas.dataset.drawingFactor=String(.5+nodePhysics.strength/10);canvas.dataset.drawingShift=String(nodePhysics.relaxation*43+nodePhysics.strength);canvas.dataset.drawingBlend=nodePhysics.labels?'screen':'source-over';drawCanvas();}nodeStrength.addEventListener('input',solveNodeNetwork);nodeLabels.addEventListener('change',solveNodeNetwork);document.querySelector('#nodeRelax').addEventListener('click',()=>{nodePhysics.relaxation+=1;amount.value=String(Math.max(Number(amount.min),Number(amount.value)-1));solveNodeNetwork();announce('Le réseau de relations a effectué une passe de relaxation');});solveNodeNetwork();
/* 11DZ_CORE_SCRIPT_END */
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const workflowDispatchCore=document.querySelector('#workflowCore');const workflowDispatchForm=document.querySelector('#workflowDispatchForm');const workflowDispatchSelect=document.querySelector('#workflowDispatchActive');const workflowDispatchJobs=new Map([["1",{"label":"Station routière","amount":12,"priority":"normal","touches":0}],["2",{"label":"Station du parc","amount":21,"priority":"urgent","touches":0}]]);let workflowDispatchSerial=workflowDispatchJobs.size;function workflowDispatchDrive(job,activate=false){workflowDispatchCore.dataset.dispatchPriority=job.priority;workflowDispatchCore.style.setProperty('--dispatch-load',Math.min(.95,.16+job.amount/120));const bridge=activate?workflowBridgeActivate():{changed:false,summary:workflowBridgeSummary()};document.querySelector('#workflowDispatchSummary').textContent=job.label+' · '+job.amount+' AQI · '+bridge.summary;announce('Tâche actuelle du point de mesure de la qualité de l’air :'+job.label);}function workflowDispatchRender(activeId,activate=false){workflowDispatchSelect.replaceChildren(...[...workflowDispatchJobs].map(([id,job])=>{const option=document.createElement('option');option.value=id;option.textContent=job.label+(job.priority==='urgent'?' · Urgent':'');return option;}));workflowDispatchSelect.value=activeId;workflowDispatchDrive(workflowDispatchJobs.get(activeId),activate);}workflowDispatchForm.addEventListener('submit',event=>{event.preventDefault();const data=new FormData(workflowDispatchForm);const id=String(++workflowDispatchSerial);workflowDispatchJobs.set(id,{label:document.querySelector('#workflowDispatchKind').value,amount:Math.max(1,Number(document.querySelector('#workflowDispatchAmount').value)||1),priority:data.get('workflowPriority'),touches:0});workflowDispatchRender(id,true);});workflowDispatchSelect.addEventListener('change',()=>workflowDispatchDrive(workflowDispatchJobs.get(workflowDispatchSelect.value),true));workflowDispatchCore.addEventListener('focusin',()=>{const job=workflowDispatchJobs.get(workflowDispatchSelect.value);if(!job)return;job.touches+=1;document.querySelector('#workflowDispatchSummary').textContent=job.label+' · '+job.amount+' AQI · '+workflowBridgeSummary();});workflowDispatchRender('1',false);
workflowBridgeReset();
  </script>
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