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fix(globe3d=11): lighten N-S squeeze to 15% (lat × 0.85)

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Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Anton Afanasyeu
2026-08-05 19:22:53 +02:00
parent 138e9e6ee8
commit c22da66d9e
2 changed files with 4 additions and 4 deletions
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6
assets/hub-globe.js
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@@ -29,8 +29,8 @@ const CONTINENT_INNER_SX = 1.2408477842003853;
const CONTINENT_INNER_SY = 1.2408477842003853;
/** Map plate center longitude (extract_red_polygons.py CENTER_LON). */
const MERCATOR_LON_CENTER = (12 * Math.PI) / 180;
/** N–S squeeze: lat × 0.5 (same as lat ÷ 2) before mercator row lookup. */
const CONTINENT_NS_SQUEEZE = 0.5;
/** N–S squeeze strength (0.15 → lat × 0.85, i.e. 15% compression). */
const CONTINENT_NS_SQUEEZE = 0.15;
const RASTER_SCALE = 2;
const AXIS_STEPS = 160;
const SPHERE_AXIS_STEPS = 180;
@@ -956,7 +956,7 @@ function sampleFlatPlateFromHub(mercFlat, hpX, hpY) {
function sampleMercFlatFromTex(mercFlat, tex) {
const ll = texLonLat(tex);
const lon = wrapLon(ll.lon + MERCATOR_LON_CENTER);
const lat = Math.max(-1.52, Math.min(1.52, ll.lat / CONTINENT_NS_SQUEEZE));
const lat = Math.max(-1.52, Math.min(1.52, ll.lat * (1 - CONTINENT_NS_SQUEEZE)));
return sampleMercFlat(mercFlat, lon, lat);
}

2
index.php
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@@ -187,7 +187,7 @@ function hub_h(string $s): string {
var supportsLayout = !!(window.CSS && CSS.supports && CSS.supports('object-fit', 'cover'));
var logoEnabled = !!(stage && supportsSvg && supportsLayout);
var logoBuild = '20260704globe21';
var logoBuild = '20260704globe22';
function hubAsset(rel) {
var link = document.querySelector('link[href*="hub.css"]');