ac/ac-be-hub
1
0
Fork 0
mirror of git://f0xx.org/ac/ac-be-hub synced 2026-08-09 20:59:23 +03:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

6
assets/hub-globe.js
View File

@@ -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);
}