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fix: bump atlas zoom sensitivity — 0.995 splits the difference
0.998 was too sluggish, 0.9/1.1 was too jumpy. 0.995 is ~2.5x more
responsive than 0.998 while still scaling proportionally to deltaY.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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site/atlas.js
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site/atlas.js
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// scale zoom proportionally to deltaY — gentle for trackpad, snappy for mouse wheel
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// deltaMode 1 = lines (mouse wheel): multiply by 40 to approximate pixels
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var dy = e.deltaMode === 1 ? e.deltaY * 40 : e.deltaY;
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var factor = Math.pow(0.998, dy); // ~0.93 per 35px mouse tick, smooth for trackpad
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var factor = Math.pow(0.995, dy); // balanced: smooth trackpad, snappy mouse wheel
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var newZoom = Math.max(view.minZoom, Math.min(view.maxZoom, view.zoom * factor));
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cacheTransform();
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var d = screenToData(e.clientX, e.clientY);