lensing_visualization/index.html at main · nicosmo/lensing_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, user-scalable=no" />
        <title>Visualizing Gravitational Lensing</title>

        <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
        <meta http-equiv="Pragma" content="no-cache" />
        <meta http-equiv="Expires" content="0" />

        <!-- PWA Meta Tags -->
        <meta name="description" content="Interactive visualization of gravitational lensing effects from galaxy clusters and cosmic voids" />
        <meta name="theme-color" content="#4facfe" />
        <meta name="apple-mobile-web-app-capable" content="yes" />
        <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
        <meta name="apple-mobile-web-app-title" content="Lensing Viz" />

        <!-- PWA Manifest -->
        <link rel="manifest" href="manifest.json" />

        <!-- Icons -->
        <link rel="icon" type="image/png" sizes="192x192" href="icons/icon-192x192.png" />
        <link rel="apple-touch-icon" href="icons/icon-192x192.png" />

        <link rel="stylesheet" href="css/styles.css" />
        <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>

        <style>
            .model-options {
                display: flex;
                flex-direction: column;
                gap: 4px;
            }
            .model-row {
                display: flex;
                gap: 4px;
            }

            .paper-link {
                display: none;
                font-size: 0.75rem;
                margin-top: 4px;
                margin-bottom: 8px;
                text-align: right;
            }
            .paper-link a {
                color: #7affb5;
                text-decoration: none;
                border-bottom: 1px dashed #7affb5;
                transition: opacity 0.2s;
            }
            .paper-link a:hover {
                opacity: 0.8;
            }

            #plot-container {
                display: none;
                margin-top: 12px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                padding-top: 12px;
            }
            #mass-plot {
                width: 100%;
                height: 120px;
                background: rgba(0,0,0,0.3);
                border-radius: 4px;
                border: 1px solid rgba(255,255,255,0.1);
            }
        </style>

        <script data-goatcounter="https://nicosmo.goatcounter.com/count"
        async src="//gc.zgo.at/count.js"></script>
    </head>
    <body>
        <div id="loading">Generating Galaxy Field...</div>
        <div id="canvas-container"></div>
        <div id="lock-indicator">LOCKED</div>

        <div id="ui-layer">
            <div class="ui-header">
                <h1>Lensing Visualization</h1>
                <button id="toggle-btn" title="Toggle Settings">–</button>
            </div>

            <div class="control-content">
                <p>
                    Interactive visualization of a massive cluster or a cosmic void bending light from background layers. A qualitative and exaggerated
                    representation of lensing effects.
                </p>
                <p id="credit-text" class="credit-text">Concept & Visualization by Nico Schuster and Andres Salcedo</p>
                <p class="credit-text" style="margin-top: -8px">
                    <a
                        href="https://github.com/nicosmo/lensing_visualization/"
                        target="_blank"
                        style="color: #4facfe; text-decoration: none"
                        >Code and more info on GitHub</a
                    >
                </p>
                <p class="credit-text" style="margin-top: -8px">
                    <a
                        href="https://arxiv.org/abs/2603.18145"
                        target="_blank"
                        style="color: #4facfe; text-decoration: none"
                        >Paper on arXiv (2603.18145)</a
                    >
                </p>

                <div class="control-group">
                    <label>Physics Model</label>
                    <div class="model-options">
                        <div class="model-row">
                            <button class="model-btn active" id="btn-model-point" data-model="0">Point Mass</button>
                            <button class="model-btn" id="btn-model-nfw" data-model="1">NFW Halo</button>
                            <button class="model-btn" id="btn-model-elliptical" data-model="4">Elliptical Halo</button>
                        </div>
                        <div class="model-row">
                            <button class="model-btn" id="btn-model-void" data-model="2">Void Toy Model</button>
                            <button class="model-btn" id="btn-model-hsw" data-model="3">HSW Void</button>
                        </div>
                    </div>
                    <div id="hsw-link" class="paper-link">
                        <a href="https://arxiv.org/abs/1403.5499" target="_blank">View HSW Paper (arXiv:1403.5499) ↗</a>
                    </div>
                </div>

                <div class="control-group">
                    <label>Background Source</label>
                    <div style="display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px">
                        <div style="display: flex; gap: 4px">
                            <button class="preset-btn active" id="btn-galaxies" data-type="galaxies" style="flex: 1">Galaxies</button>
                            <button class="preset-btn" id="btn-bw" data-type="bw-grid" style="flex: 1">B&W Line Grid</button>
                        </div>
                        <div style="display: flex; gap: 4px">
                            <button class="preset-btn" id="btn-col" data-type="color-grid" style="flex: 1">Color Line Grid</button>
                            <button class="preset-btn" id="btn-dotted" data-type="dotted-grid" style="flex: 1">Color Dotted Grid</button>
                        </div>
                    </div>

                    <div id="layer-list" class="layer-list"></div>

                    <label for="bg-upload" id="upload-label" class="file-upload-btn">Add Own Background Image</label>
                    <input type="file" id="bg-upload" accept="image/*" />
                </div>

                <div class="control-group">
                    <label id="mass-label">
                        Cluster Mass
                        <span id="mass-val" class="value-display">100%</span>
                    </label>
                    <input type="range" id="mass-slider" min="0" max="200" value="100" />
                </div>

                <div class="control-group" id="group-spread">
                    <label id="spread-label">
                        Cluster Spread
                        <span id="spread-val" class="value-display">1.00x</span>
                    </label>
                    <input type="range" id="spread-slider" min="0" max="200" value="100" />
                </div>

                <div class="control-group" id="group-ellipticity" style="display:none;">
                    <label>
                        Ellipticity (q = 1 - e)
                        <span id="ellipticity-val" class="value-display">0.30</span>
                    </label>
                    <input type="range" id="ellipticity-slider" min="0" max="80" value="30" />
                </div>

                <div class="control-group" id="group-angle" style="display:none;">
                    <label>
                        Position Angle (deg)
                        <span id="angle-val" class="value-display">45</span>
                    </label>
                    <input type="range" id="angle-slider" min="0" max="180" value="45" />
                </div>

                <div class="control-group" id="group-wall-density" style="display:none;">
                    <label>
                        Wall Peak Density
                        <span id="wall-density-val" class="value-display">0.05</span>
                    </label>
                    <input type="range" id="wall-density-slider" min="0" max="50" value="5" />
                </div>

                <div class="control-group" id="group-wall-width" style="display:none;">
                    <label>
                        Wall Outer Edge
                        <span id="wall-width-val" class="value-display">1.05x</span>
                    </label>
                    <input type="range" id="wall-width-slider" min="1" max="100" value="5" />
                </div>

                <div class="control-group" id="group-hsw-rs" style="display:none;">
                    <label>
                        Scale Radius (r_s / r_v)
                        <span id="hsw-rs-val" class="value-display">0.90</span>
                    </label>
                    <input type="range" id="hsw-rs-slider" min="10" max="150" value="90" />
                </div>

                <div class="control-group" id="group-hsw-alpha" style="display:none;">
                    <label>
                        Inner Slope (α)
                        <span id="hsw-alpha-val" class="value-display">4.0</span>
                    </label>
                    <input type="range" id="hsw-alpha-slider" min="10" max="100" value="40" />
                </div>

                <div class="control-group" id="group-hsw-beta" style="display:none;">
                    <label>
                        Outer Slope (β)
                        <span id="hsw-beta-val" class="value-display">15.0</span>
                    </label>
                    <input type="range" id="hsw-beta-slider" min="10" max="300" value="150" />
                </div>

                <div class="control-group">
                    <label>
                        Number Of Background Layers
                        <span id="layers-val" class="value-display">3</span>
                    </label>
                    <input type="range" id="layers-slider" min="1" max="8" step="1" value="3" />
                </div>

                <div class="control-group">
                    <label>
                        <span id="density-label-text">Galaxy Density</span>
                        <span id="density-val" class="value-display">100%</span>
                    </label>
                    <input type="range" id="density-slider" min="0" max="200" value="100" />
                </div>

                <div class="control-group">
                    <label>
                        Galaxy Brightness
                        <span id="bright-val" class="value-display">100%</span>
                    </label>
                    <input type="range" id="bright-slider" min="0" max="200" value="100" />
                </div>

                <div class="control-group" id="group-caustics" style="display:none;">
                    <label>
                        Show Caustic Lines
                        <input type="checkbox" id="caustic-check" />
                    </label>
                    <div style="font-size: 0.65rem; text-align: right; margin-top: 6px; opacity: 0.85;">
                        Based on <a href="https://github.com/lenstronomy/lenstronomy" target="_blank" style="color: #7affb5; text-decoration: none; border-bottom: 1px dashed #7affb5;">GitHub:lenstronomy</a>
                    </div>
                </div>

                <div class="control-group">
                    <label>
                        Show Foreground Galaxies
                        <input type="checkbox" id="fg-check" checked />
                    </label>
                </div>

                <div class="control-group">
                    <label>
                        Show Cluster Member Galaxies
                        <input type="checkbox" id="cluster-check" checked />
                    </label>
                </div>

                <div class="control-group">
                    <label id="core-label">
                        Show Dark Matter Halo
                        <input type="checkbox" id="core-check" checked />
                    </label>
                </div>

                <div class="control-group" id="group-plot-toggle" style="display:none;">
                    <label>
                        Show Mass Distribution
                        <input type="checkbox" id="plot-check" checked />
                    </label>
                    <div id="plot-container">
                        <canvas id="mass-plot"></canvas>
                    </div>
                </div>

                <div class="reset-container">
                    <button id="reshuffle-btn" class="reshuffle-btn">Reshuffle Galaxies</button>
                    <button id="snapshot-btn" class="reshuffle-btn">Save Snapshot</button>
                    <button id="reset-main" class="reset-main-btn">Reset All Settings</button>
                </div>
            </div>
        </div>

        <div class="instructions" id="instruct">Drag to move • Click to Lock</div>

        <!-- Modular JavaScript Files -->
        <script src="js/utils.js"></script>
        <script src="js/galaxy-factory.js"></script>
        <script src="js/textures.js"></script>
        <script src="js/shaders.js"></script>
        <script src="js/ui.js"></script>
        <script src="js/app.js"></script>

        <!-- Service Worker Registration -->
        <script>
            if ('serviceWorker' in navigator) {
                window.addEventListener('load', function() {
                    navigator.serviceWorker.register('sw.js')
                        .then(function(registration) {
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    </body>
</html>