react-dot-visualization/performance-test.html at main · fronx/react-dot-visualization · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>countVisibleDots Performance Test</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }
        .test-result {
            margin: 10px 0;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
        }
        .fast { background-color: #d4edda; }
        .medium { background-color: #fff3cd; }
        .slow { background-color: #f8d7da; }
        button {
            padding: 10px 20px;
            margin: 10px 5px;
            font-size: 16px;
            cursor: pointer;
        }
        #results {
            margin-top: 20px;
        }
    </style>
</head>
<body>
    <h1>countVisibleDots Performance Test</h1>

    <p>This test measures the performance of the countVisibleDots function with different data sizes and viewport scenarios.</p>

    <button onclick="runAllTests()">Run All Tests</button>
    <button onclick="clearResults()">Clear Results</button>

    <div id="results"></div>

    <script type="module">
        // Import the countVisibleDots function
        function countVisibleDots(data, transform, viewBox, defaultSize = 2) {
            if (!data || !data.length || !transform || !viewBox) return 0;

            const { k, x: tx, y: ty } = transform;
            const [vbX, vbY, vbW, vbH] = viewBox;

            // Calculate visible data bounds (inverse transform)
            const visibleLeft = (vbX - tx) / k;
            const visibleRight = (vbX + vbW - tx) / k;
            const visibleTop = (vbY - ty) / k;
            const visibleBottom = (vbY + vbH - ty) / k;

            let visibleCount = 0;

            for (const dot of data) {
                const radius = (dot.size || defaultSize) / 2;

                // Check if dot (including its radius) intersects with visible area
                if (dot.x + radius >= visibleLeft &&
                    dot.x - radius <= visibleRight &&
                    dot.y + radius >= visibleTop &&
                    dot.y - radius <= visibleBottom) {
                    visibleCount++;
                }
            }

            return visibleCount;
        }

        // Generate test data
        function generateDots(count, bounds = { minX: 0, maxX: 1000, minY: 0, maxY: 1000 }) {
            const dots = [];
            for (let i = 0; i < count; i++) {
                dots.push({
                    id: i,
                    x: Math.random() * (bounds.maxX - bounds.minX) + bounds.minX,
                    y: Math.random() * (bounds.maxY - bounds.minY) + bounds.minY,
                    size: Math.random() * 8 + 2 // Random size between 2-10
                });
            }
            return dots;
        }

        // Test scenarios
        const testScenarios = [
            {
                name: "Small Dataset - All Visible",
                dotCount: 1000,
                viewBox: [0, 0, 1000, 1000],
                transform: { k: 1, x: 0, y: 0 },
                bounds: { minX: 0, maxX: 1000, minY: 0, maxY: 1000 }
            },
            {
                name: "Medium Dataset - All Visible",
                dotCount: 10000,
                viewBox: [0, 0, 1000, 1000],
                transform: { k: 1, x: 0, y: 0 },
                bounds: { minX: 0, maxX: 1000, minY: 0, maxY: 1000 }
            },
            {
                name: "Large Dataset - All Visible",
                dotCount: 100000,
                viewBox: [0, 0, 1000, 1000],
                transform: { k: 1, x: 0, y: 0 },
                bounds: { minX: 0, maxX: 1000, minY: 0, maxY: 1000 }
            },
            {
                name: "Large Dataset - Zoomed In (10% visible)",
                dotCount: 100000,
                viewBox: [0, 0, 100, 100],
                transform: { k: 10, x: -4500, y: -4500 },
                bounds: { minX: 0, maxX: 1000, minY: 0, maxY: 1000 }
            },
            {
                name: "Large Dataset - Zoomed Out (All visible)",
                dotCount: 100000,
                viewBox: [0, 0, 2000, 2000],
                transform: { k: 0.5, x: 500, y: 500 },
                bounds: { minX: 0, maxX: 1000, minY: 0, maxY: 1000 }
            },
            {
                name: "Extreme Dataset - Zoomed In",
                dotCount: 500000,
                viewBox: [0, 0, 50, 50],
                transform: { k: 20, x: -9000, y: -9000 },
                bounds: { minX: 0, maxX: 1000, minY: 0, maxY: 1000 }
            }
        ];

        function runTest(scenario, iterations = 5) {
            const dots = generateDots(scenario.dotCount, scenario.bounds);
            const times = [];
            let visibleCount = 0;

            // Warm-up run
            countVisibleDots(dots, scenario.transform, scenario.viewBox);

            // Actual test runs
            for (let i = 0; i < iterations; i++) {
                const startTime = performance.now();
                visibleCount = countVisibleDots(dots, scenario.transform, scenario.viewBox);
                const endTime = performance.now();
                times.push(endTime - startTime);
            }

            const avgTime = times.reduce((sum, time) => sum + time, 0) / times.length;
            const minTime = Math.min(...times);
            const maxTime = Math.max(...times);

            return {
                scenario: scenario.name,
                dotCount: scenario.dotCount,
                visibleCount,
                avgTime: avgTime.toFixed(3),
                minTime: minTime.toFixed(3),
                maxTime: maxTime.toFixed(3),
                throughput: (scenario.dotCount / avgTime * 1000).toFixed(0) // dots per second
            };
        }

        function formatResult(result) {
            const timeClass = result.avgTime < 5 ? 'fast' : result.avgTime < 20 ? 'medium' : 'slow';
            const visibilityPercent = ((result.visibleCount / result.dotCount) * 100).toFixed(1);

            return `
                <div class="test-result ${timeClass}">
                    <h3>${result.scenario}</h3>
                    <p><strong>Dataset Size:</strong> ${result.dotCount.toLocaleString()} dots</p>
                    <p><strong>Visible Dots:</strong> ${result.visibleCount.toLocaleString()} (${visibilityPercent}%)</p>
                    <p><strong>Performance:</strong></p>
                    <ul>
                        <li>Average Time: ${result.avgTime}ms</li>
                        <li>Min Time: ${result.minTime}ms</li>
                        <li>Max Time: ${result.maxTime}ms</li>
                        <li>Throughput: ${result.throughput.toLocaleString()} dots/sec</li>
                    </ul>
                </div>
            `;
        }

        window.runAllTests = function() {
            const resultsDiv = document.getElementById('results');
            resultsDiv.innerHTML = '<h2>Running Tests...</h2>';

            const allResults = [];

            // Run tests sequentially to avoid interference
            let currentTest = 0;

            function runNextTest() {
                if (currentTest >= testScenarios.length) {
                    // All tests complete, show summary
                    let html = '<h2>Test Results</h2>';
                    allResults.forEach(result => {
                        html += formatResult(result);
                    });

                    // Add summary
                    const totalDots = allResults.reduce((sum, r) => sum + r.dotCount, 0);
                    const avgThroughput = allResults.reduce((sum, r) => sum + parseInt(r.throughput), 0) / allResults.length;

                    html += `
                        <div class="test-result">
                            <h3>Summary</h3>
                            <p>Total dots processed: ${totalDots.toLocaleString()}</p>
                            <p>Average throughput: ${avgThroughput.toFixed(0).toLocaleString()} dots/sec</p>
                            <p>Function appears to be O(n) linear - performance scales predictably with data size.</p>
                        </div>
                    `;

                    resultsDiv.innerHTML = html;
                    return;
                }

                resultsDiv.innerHTML = `<h2>Running Test ${currentTest + 1}/${testScenarios.length}: ${testScenarios[currentTest].name}</h2>`;

                // Use setTimeout to prevent UI blocking
                setTimeout(() => {
                    const result = runTest(testScenarios[currentTest]);
                    allResults.push(result);
                    currentTest++;
                    runNextTest();
                }, 100);
            }

            runNextTest();
        };

        window.clearResults = function() {
            document.getElementById('results').innerHTML = '';
        };
    </script>
</body>
</html>