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fix(globe3d=11): squeeze continent N-S sampling by 1.75

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Compress effective latitude before mercator row lookup so land
appears shorter on the orthographic disk.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Anton Afanasyeu
2026-08-05 19:15:16 +02:00
parent 3d45bde853
commit 9b96a28586
2 changed files with 4 additions and 3 deletions
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5
assets/hub-globe.js
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@@ -29,6 +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 on sphere land sample (higher = shorter poles on disk). */
const CONTINENT_NS_SQUEEZE = 1.75;
const RASTER_SCALE = 2;
const AXIS_STEPS = 160;
const SPHERE_AXIS_STEPS = 180;
@@ -954,8 +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_INNER_SY));
const lat = Math.max(-1.52, Math.min(1.52, ll.lat / CONTINENT_NS_SQUEEZE));
return sampleMercFlat(mercFlat, lon, lat);
}

2
index.php
View File

@@ -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 = '20260704globe17';
var logoBuild = '20260704globe18';
function hubAsset(rel) {
var link = document.querySelector('link[href*="hub.css"]');