Coral Garden kaleidoscope pattern
Complete a kaleidoscope pattern in a coral garden scene: includes real content, actionable controls, clear status feedback, and responsive layouts across sizes.
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<header class="mast"><div><span class="eyebrow">organic / kaleidoscope pattern / INTERMEDIATE</span><h1>Coral Garden kaleidoscope pattern</h1><p class="intro">Complete a kaleidoscope pattern in a coral garden scene: includes real content, actionable controls, clear status feedback, and responsive layouts across sizes.</p></div><span class="scenario">Coral Garden</span></header>
<div class="composition-index"><section class="demo" aria-label="Coral Garden Kaleidoscope Pattern Interactive Area"><div id="workflowSpatial" class="workflow-spatial" style="--spatial-width:64%;--spatial-zoom:1"><header><div><span class="eyebrow">Coral Garden SPATIAL CANVAS</span><h2>Coral Garden Control Panel</h2></div><label>Visual intensity share<input id="workflowSpatialWidth" type="range" min="38" max="82" value="64"><output id="workflowSpatialWidthValue">64%</output></label><label>Content Scaling<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:creative-effects-kaleidoscope --><div class="kaleidoscope-lab"><canvas id="kaleidoscopeCanvas" width="720" height="720" tabindex="0" aria-label="Interactive Kaleidoscope for the Coral Garden; move the pointer or use the left and right arrow keys to rotate the pattern" aria-describedby="kaleidoscopeHelp">Your browser does not support Canvas.</canvas><aside class="kaleidoscope-controls panel"><span class="eyebrow">KALEIDOSCOPE</span><h2>Kaleidoscope Pattern</h2><p id="kaleidoscopeHelp" class="muted">Multiple mirrored sectors share the same set of shapes, forming strict symmetry. Move the pointer to change the rotation angle.</p><label>Mirror sector <input id="kaleidoscopeSegments" type="range" min="4" max="16" step="2" value="10" data-core-bridge="creative-effects-kaleidoscope"><output id="kaleidoscopeSegmentsValue">10</output></label><label>Graphic Density <input id="kaleidoscopeDensity" type="range" min="3" max="12" value="7"><output id="kaleidoscopeDensityValue">7</output></label><button id="kaleidoscopeSpin" class="action" type="button" aria-pressed="false">Auto rotate</button></aside></div><!-- 11DZ_CORE_END --></section><input id="workflowSpatialHandle" class="spatial-handle" type="button" value="↔" aria-label="Drag to adjust the main case preview width"><aside><strong>Coral Garden Base Layers</strong><p>Coral Garden dynamic layers and Coral Garden display layers will be rearranged as the canvas size changes.</p><output id="workflowSpatialStatus">Width 64%, zoom 100%</output><input id="workflowSpatialApply" class="action primary" type="button" value="Application Effect"></aside></div></div><p id="status" class="status" role="status" aria-live="polite"></p></section><aside class="index-mark" aria-hidden="true"><strong>05</strong><span>Coral Garden FIELD INDEX</span></aside></div>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:creative-effects-kaleidoscope */
const kaleidoscopeCanvas=document.querySelector('#kaleidoscopeCanvas');const kaleidoscopeContext=kaleidoscopeCanvas.getContext('2d');const kaleidoscopeSegments=document.querySelector('#kaleidoscopeSegments');const kaleidoscopeDensity=document.querySelector('#kaleidoscopeDensity');const kaleidoscopeReduced=matchMedia('(prefers-reduced-motion: reduce)').matches;let kaleidoscopeAngle=0;let kaleidoscopeSpinning=false;let kaleidoscopeFrame=0;function sizeKaleidoscope(){const rect=kaleidoscopeCanvas.getBoundingClientRect();const side=Math.max(300,Math.min(rect.width,rect.height||rect.width));const ratio=Math.min(2,devicePixelRatio||1);kaleidoscopeCanvas.width=Math.round(side*ratio);kaleidoscopeCanvas.height=Math.round(side*ratio);kaleidoscopeContext.setTransform(ratio,0,0,ratio,0,0);drawKaleidoscope();}function drawKaleidoscope(){const side=kaleidoscopeCanvas.width/Math.min(2,devicePixelRatio||1);const center=side/2;const segments=Number(kaleidoscopeSegments.value);const density=Number(kaleidoscopeDensity.value);kaleidoscopeContext.fillStyle='#100b24';kaleidoscopeContext.fillRect(0,0,side,side);for(let segment=0;segment<segments;segment+=1){for(let mirror=0;mirror<2;mirror+=1){kaleidoscopeContext.save();kaleidoscopeContext.translate(center,center);kaleidoscopeContext.rotate(kaleidoscopeAngle+segment*Math.PI*2/segments);kaleidoscopeContext.scale(1,mirror?-1:1);for(let index=0;index<density;index+=1){const radius=36+index*(center-54)/density;const size=8+(index*7)%24;kaleidoscopeContext.beginPath();kaleidoscopeContext.fillStyle=['#22d3ee','#f472b6','#fde047','#a78bfa'][index%4]+'bb';kaleidoscopeContext.arc(radius,Math.sin(index*1.7)*radius*.18,size,0,Math.PI*2);kaleidoscopeContext.fill();kaleidoscopeContext.rotate(.045);}kaleidoscopeContext.restore();}}if(kaleidoscopeSpinning&&!kaleidoscopeReduced){kaleidoscopeAngle+=.004;cancelAnimationFrame(kaleidoscopeFrame);kaleidoscopeFrame=requestAnimationFrame(drawKaleidoscope);}}kaleidoscopeCanvas.addEventListener('pointermove',event=>{const rect=kaleidoscopeCanvas.getBoundingClientRect();kaleidoscopeAngle=(event.clientX-rect.left)/rect.width*Math.PI*2;drawKaleidoscope();});kaleidoscopeCanvas.addEventListener('keydown',event=>{if(!['ArrowLeft','ArrowRight'].includes(event.key))return;event.preventDefault();kaleidoscopeAngle+=event.key==='ArrowRight'?.12:-.12;drawKaleidoscope();announce('The kaleidoscope rotation angle has been adjusted');});[kaleidoscopeSegments,kaleidoscopeDensity].forEach(input=>input.addEventListener('input',()=>{document.querySelector('#kaleidoscopeSegmentsValue').textContent=kaleidoscopeSegments.value;document.querySelector('#kaleidoscopeDensityValue').textContent=kaleidoscopeDensity.value;drawKaleidoscope();announce('Kaleidoscope '+kaleidoscopeSegments.value+' sector, density '+kaleidoscopeDensity.value);}));document.querySelector('#kaleidoscopeSpin').addEventListener('click',event=>{kaleidoscopeSpinning=!kaleidoscopeSpinning;event.currentTarget.textContent=kaleidoscopeSpinning?'Stop rotating':'Auto rotate';event.currentTarget.setAttribute('aria-pressed',String(kaleidoscopeSpinning));cancelAnimationFrame(kaleidoscopeFrame);drawKaleidoscope();announce(kaleidoscopeSpinning?'The kaleidoscope starts rotating automatically':'The kaleidoscope has stopped rotating');});addEventListener('resize',sizeKaleidoscope,{passive:true});sizeKaleidoscope();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"creative-effects-kaleidoscope","selector":"[data-core-bridge=\"creative-effects-kaleidoscope\"]","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+' · Core Version '+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='width '+workflowSpatialState.width+'%, zoom '+Math.round(workflowSpatialState.zoom*100)+'%';announce('The coral garden canvas has been reflowed');}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='Effect applied · Width '+workflowSpatialState.width+'%, zoom '+Math.round(workflowSpatialState.zoom*100)+'% · '+bridge.summary;announce(document.querySelector('#workflowSpatialStatus').textContent);});workflowSpatialDrive();
workflowBridgeReset();
</script>
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