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sync BE / landing 3d

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This commit is contained in:
Anton Afanasyeu
2026-06-06 18:26:26 +02:00
parent a5a7e97dc3
commit 23622f2d0f
2 changed files with 156 additions and 106 deletions
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246
examples/app_hub/assets/hub-globe.js
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@@ -1,15 +1,16 @@
/**
* Hub landing globe — orthographic Canvas2D sphere.
* Reference stack (globe3d=0): hub-logo-fragment-globe + continents-mercator-globe.
* Body frame uses 180° flip around equator (X) so N/S matches the static hub.
* Hub landing globe — orthographic Canvas2D (globe3d=1).
* Layer order matches globe3d=0 SVG stack: ocean → grid → continents.
* Land baked to equirectangular (ortho ref + mercator-flat wrap); grid under continents.
*/
export const GLOBE_VIEW = { imgW: 1920, imgH: 1080, cx: 720, cy: 560, r: 322, rim: 330 };
const AUTO_SPIN_RAD_S = 0.035;
const DRAG_ROTATION_PER_PX = 0.004;
const OCEAN_FALLBACK = { r: 22, g: 38, b: 60 };
const VIEW_Z_EPS = 0.001;
const BODY_FRONT_Z = 0.001;
const EQ_W = 1024;
const EQ_H = 512;
const VIEW_Z_MIN = 0.06;
function hubAsset(rel, build) {
const link = document.querySelector('link[href*="hub.css"]');
@@ -67,7 +68,6 @@ function sampleImageData(imgData, w, h, x, y) {
return [imgData[i], imgData[i + 1], imgData[i + 2], imgData[i + 3]];
}
/** 180° about equator (X): swap S↔N to match globe3d=0 hub orientation. */
function flipSouthNorth(p) {
return { x: p.x, y: -p.y, z: -p.z };
}
@@ -106,6 +106,13 @@ function bodyToHubPixel(xb, yb) {
};
}
function lonLatFromBody(body) {
return {
lon: Math.atan2(body.x, body.z),
lat: Math.asin(Math.max(-1, Math.min(1, body.y))),
};
}
function sampleMercatorFlat(merc, lon, lat) {
const u = (lon + Math.PI) / (2 * Math.PI);
const v = 0.5 - lat / Math.PI;
@@ -114,47 +121,75 @@ function sampleMercatorFlat(merc, lon, lat) {
return sampleImageData(merc.data, merc.w, merc.h, x, y);
}
function isLandPixel(r, g, b, a) {
function sampleEquatorLand(landEq, lon, lat) {
const u = (lon + Math.PI) / (2 * Math.PI);
const v = 0.5 - lat / Math.PI;
const x = Math.round(u * (EQ_W - 1));
const y = Math.round(v * (EQ_H - 1));
return sampleImageData(landEq.data, EQ_W, EQ_H, x, y);
}
function isLandMask(r, g, b, a) {
return a > 16;
}
function isFlatLand(r, g, b, a) {
return a > 12 && r > 100 && g < 140 && b < 140;
}
function bodyLonLat(xb, yb, zb) {
return {
lon: Math.atan2(xb, zb),
lat: Math.asin(Math.max(-1, Math.min(1, yb))),
};
}
/** Equirect land: ortho globe3d=0 colors on front body + mercator-flat elsewhere. */
function bakeLandEquator(continents, mercFlat) {
const out = new Uint8ClampedArray(EQ_W * EQ_H * 4);
for (let j = 0; j < EQ_H; j++) {
for (let i = 0; i < EQ_W; i++) {
const lon = (i / EQ_W) * 2 * Math.PI - Math.PI;
const lat = Math.PI * 0.5 - (j / EQ_H) * Math.PI;
const body = sphereLatLon(lon, lat);
const p = (j * EQ_W + i) * 4;
let rgba = [0, 0, 0, 0];
/**
* globe3d=0 orthographic disk (primary) + mercator-flat lon/lat fill during rotation.
*/
function sampleBodySurface(continents, globe, mercFlat, xb, yb, zb) {
const p = bodyToHubPixel(xb, yb);
const ocean = sampleImageData(globe.data, globe.w, globe.h, p.x, p.y);
const oceanRgb =
ocean[3] < 8
? [OCEAN_FALLBACK.r, OCEAN_FALLBACK.g, OCEAN_FALLBACK.b]
: [ocean[0], ocean[1], ocean[2]];
if (zb <= BODY_FRONT_Z) {
return oceanRgb;
}
const ortho = sampleImageData(continents.data, continents.w, continents.h, p.x, p.y);
if (body.z > 0) {
const hp = bodyToHubPixel(body.x, body.y);
const ortho = sampleImageData(continents.data, continents.w, continents.h, hp.x, hp.y);
if (ortho[3] > 20) {
return [ortho[0], ortho[1], ortho[2]];
rgba = [ortho[0], ortho[1], ortho[2], 255];
}
}
if (rgba[3] < 16) {
const flat = sampleMercatorFlat(mercFlat, lon, lat);
if (isFlatLand(flat[0], flat[1], flat[2], flat[3])) {
rgba = [flat[0], flat[1], flat[2], 220];
}
}
const ll = bodyLonLat(xb, yb, zb);
const flat = sampleMercatorFlat(mercFlat, ll.lon, ll.lat);
if (isLandPixel(flat[0], flat[1], flat[2], flat[3])) {
return [flat[0], flat[1], flat[2]];
out[p] = rgba[0];
out[p + 1] = rgba[1];
out[p + 2] = rgba[2];
out[p + 3] = rgba[3];
}
return oceanRgb;
}
return { data: out, w: EQ_W, h: EQ_H };
}
function drawGlobeDisk(ctx, cx, cy, r, rotY, continents, globe, mercFlat) {
function viewDirBody(rotY) {
return inverseRotateY(0, 0, 1, rotY);
}
function facingCamera(body, rotY) {
const vd = viewDirBody(rotY);
return body.x * vd.x + body.y * vd.y + body.z * vd.z > 0.002;
}
function sampleOcean(globe, xb, yb) {
const hp = bodyToHubPixel(xb, yb);
const o = sampleImageData(globe.data, globe.w, globe.h, hp.x, hp.y);
if (o[3] < 8) {
return [OCEAN_FALLBACK.r, OCEAN_FALLBACK.g, OCEAN_FALLBACK.b];
}
return [o[0], o[1], o[2]];
}
function fillDiskRegion(ctx, cx, cy, r, rotY, fn) {
const r2 = r * r;
const x0 = Math.max(0, Math.floor(cx - r));
const y0 = Math.max(0, Math.floor(cy - r));
@@ -162,7 +197,7 @@ function drawGlobeDisk(ctx, cx, cy, r, rotY, continents, globe, mercFlat) {
const y1 = Math.min(ctx.canvas.height - 1, Math.ceil(cy + r));
const w = x1 - x0 + 1;
const h = y1 - y0 + 1;
if (w <= 0 || h <= 0) return;
if (w <= 0 || h <= 0) return null;
const out = ctx.createImageData(w, h);
const px = out.data;
@@ -172,8 +207,7 @@ function drawGlobeDisk(ctx, cx, cy, r, rotY, continents, globe, mercFlat) {
for (let dx = x0; dx <= x1; dx++) {
const ox = dx - cx;
const oy = dy - cy;
const d2 = ox * ox + oy * oy;
if (d2 > r2) {
if (ox * ox + oy * oy > r2) {
px[p++] = 0;
px[p++] = 0;
px[p++] = 0;
@@ -184,38 +218,60 @@ function drawGlobeDisk(ctx, cx, cy, r, rotY, continents, globe, mercFlat) {
const ny = oy / r;
const nz = Math.sqrt(Math.max(0, 1 - nx * nx - ny * ny));
const body = inverseRotateY(nx, ny, nz, rotY);
const rgb = sampleBodySurface(continents, globe, mercFlat, body.x, body.y, body.z);
const rgb = fn(body);
px[p++] = rgb[0];
px[p++] = rgb[1];
px[p++] = rgb[2];
px[p++] = 255;
px[p++] = rgb[3] !== undefined ? rgb[3] : 255;
}
}
return { out, x0, y0 };
}
function blitLayer(ctx, cx, cy, r, layer) {
if (!layer) return;
ctx.save();
ctx.beginPath();
ctx.arc(cx, cy, r, 0, Math.PI * 2);
ctx.clip();
ctx.putImageData(out, x0, y0);
ctx.putImageData(layer.out, layer.x0, layer.y0);
ctx.restore();
}
/** Draw each contiguous visible arc of a 3D curve (latitude circles stay on the surface). */
function drawOceanLayer(ctx, cx, cy, r, rotY, globe) {
const layer = fillDiskRegion(ctx, cx, cy, r, rotY, function (body) {
return sampleOcean(globe, body.x, body.y).concat([255]);
});
blitLayer(ctx, cx, cy, r, layer);
}
function drawContinentsLayer(ctx, cx, cy, r, rotY, landEq) {
const layer = fillDiskRegion(ctx, cx, cy, r, rotY, function (body) {
if (!facingCamera(body, rotY)) {
return [0, 0, 0, 0];
}
const ll = lonLatFromBody(body);
const land = sampleEquatorLand(landEq, ll.lon, ll.lat);
if (!isLandMask(land[0], land[1], land[2], land[3])) {
return [0, 0, 0, 0];
}
return [land[0], land[1], land[2], land[3]];
});
blitLayer(ctx, cx, cy, r, layer);
}
/** One continuous path per visible arc — parallels stay on the sphere. */
function strokeVisibleArcs3D(ctx, cx, cy, r, rotY, pointAt, styleAt, steps) {
const samples = [];
for (let i = 0; i <= steps; i++) {
const raw = pointAt(i / steps);
const p = rotateYRaw(raw.x, raw.y, raw.z, rotY);
if (p.z <= VIEW_Z_EPS) {
if (p.z <= VIEW_Z_MIN) {
samples.push(null);
continue;
}
samples.push({
sx: cx + p.x * r,
sy: cy - p.y * r,
z: p.z,
});
samples.push({ sx: cx + p.x * r, sy: cy - p.y * r, z: p.z });
}
let run = [];
@@ -224,37 +280,51 @@ function strokeVisibleArcs3D(ctx, cx, cy, r, rotY, pointAt, styleAt, steps) {
run = [];
return;
}
for (let i = 1; i < run.length; i++) {
const a = run[i - 1];
const b = run[i];
const style = styleAt((a.z + b.z) * 0.5);
let zSum = 0;
ctx.beginPath();
ctx.moveTo(a.sx, a.sy);
ctx.lineTo(b.sx, b.sy);
ctx.moveTo(run[0].sx, run[0].sy);
for (let i = 1; i < run.length; i++) {
ctx.lineTo(run[i].sx, run[i].sy);
zSum += run[i].z;
}
const style = styleAt(zSum / run.length);
ctx.strokeStyle = style.color;
ctx.lineWidth = style.width;
ctx.lineCap = 'round';
ctx.lineJoin = 'round';
ctx.stroke();
}
run = [];
}
for (let i = 0; i < samples.length; i++) {
if (!samples[i]) {
flushRun();
} else {
run.push(samples[i]);
}
if (!samples[i]) flushRun();
else run.push(samples[i]);
}
flushRun();
}
function depthStyle(baseWidth, centerAlpha, edgeAlpha, z) {
const t = Math.max(0, Math.min(1, z / 0.95));
function meridianStyle(isPrime, scale, z) {
const t = Math.max(0, Math.min(1, (z - VIEW_Z_MIN) / (0.92 - VIEW_Z_MIN)));
if (t <= 0) return { width: 0, color: 'rgba(0,0,0,0)' };
const bw = isPrime ? Math.max(3, scale * 0.0095) : Math.max(2.5, scale * 0.008);
const ca = isPrime ? 0.98 : 0.72;
const ea = 0.02;
return {
width: baseWidth * (0.3 + 0.7 * t),
color: 'rgba(238,245,255,' + (edgeAlpha + (centerAlpha - edgeAlpha) * t).toFixed(3) + ')',
width: bw * (0.25 + 0.75 * t * t),
color: 'rgba(238,245,255,' + (ea + (ca - ea) * t * t).toFixed(3) + ')',
};
}
function parallelStyle(scale, z, bright) {
const t = Math.max(0, Math.min(1, (z - VIEW_Z_MIN) / (0.92 - VIEW_Z_MIN)));
if (t <= 0) return { width: 0, color: 'rgba(0,0,0,0)' };
const bw = bright ? Math.max(2, scale * 0.007) : Math.max(1.5, scale * 0.0055);
const ca = bright ? 0.88 : 0.55;
return {
width: bw * (0.3 + 0.7 * t),
color: bright
? 'rgba(219,231,246,' + (0.35 + 0.53 * t).toFixed(3) + ')'
: 'rgba(231,236,243,' + (0.15 + 0.45 * t).toFixed(3) + ')',
};
}
@@ -263,18 +333,13 @@ function drawGridOverlay(ctx, rect, rotY) {
const cy = rect.cy;
const r = rect.r;
const scale = rect.scale;
const steps = 128;
const steps = 160;
ctx.save();
ctx.beginPath();
ctx.arc(cx, cy, r, 0, Math.PI * 2);
ctx.clip();
const lwBase = Math.max(2.5, scale * 0.008);
const lwPrime = Math.max(3, scale * 0.0095);
const lwThin = Math.max(1.5, scale * 0.0055);
const lwEq = Math.max(2, scale * 0.007);
strokeVisibleArcs3D(
ctx,
cx,
@@ -282,15 +347,10 @@ function drawGridOverlay(ctx, rect, rotY) {
r,
rotY,
function (t) {
const lon = -Math.PI + t * 2 * Math.PI;
return sphereLatLon(lon, 0);
return sphereLatLon(-Math.PI + t * 2 * Math.PI, 0);
},
function (z) {
const t = Math.max(0, Math.min(1, z / 0.95));
return {
width: lwEq * (0.35 + 0.65 * t),
color: 'rgba(219,231,246,' + (0.42 + 0.46 * t).toFixed(3) + ')',
};
return parallelStyle(scale, z, true);
},
steps
);
@@ -304,15 +364,10 @@ function drawGridOverlay(ctx, rect, rotY) {
r,
rotY,
function (t) {
const lon = -Math.PI + t * 2 * Math.PI;
return sphereLatLon(lon, lat);
return sphereLatLon(-Math.PI + t * 2 * Math.PI, lat);
},
function (z) {
const t = Math.max(0, Math.min(1, z / 0.95));
return {
width: lwThin * (0.35 + 0.65 * t),
color: 'rgba(231,236,243,' + (0.18 + 0.54 * t).toFixed(3) + ')',
};
return parallelStyle(scale, z, false);
},
steps
);
@@ -321,8 +376,6 @@ function drawGridOverlay(ctx, rect, rotY) {
for (let lonDeg = -150; lonDeg <= 150; lonDeg += 30) {
const lon = (lonDeg * Math.PI) / 180;
const isPrime = lonDeg === 0;
const bw = isPrime ? lwPrime : lwBase;
const ca = isPrime ? 0.98 : 0.78;
strokeVisibleArcs3D(
ctx,
cx,
@@ -330,11 +383,10 @@ function drawGridOverlay(ctx, rect, rotY) {
r,
rotY,
function (t) {
const lat = -Math.PI / 2 + t * Math.PI;
return sphereLatLon(lon, lat);
return sphereLatLon(lon, -Math.PI / 2 + t * Math.PI);
},
function (z) {
return depthStyle(bw, ca, 0.15, z);
return meridianStyle(isPrime, scale, z);
},
96
);
@@ -366,10 +418,6 @@ function drawRim(ctx, globeImg, cx, cy, r, rim, layoutScale) {
ctx.restore();
}
/**
* @param {HTMLElement} stage
* @param {{ build: string, reducedMotion?: boolean, initialRotationY?: number }} opts
*/
export async function mountHubGlobe(stage, opts) {
const build = opts.build || 'earth3d';
const reducedMotion = !!opts.reducedMotion;
@@ -419,6 +467,7 @@ export async function mountHubGlobe(stage, opts) {
mercatorFlatImg.naturalHeight || 519
).data,
};
const landEq = bakeLandEquator(continents, mercFlat);
let rotation = typeof opts.initialRotationY === 'number' ? opts.initialRotationY : 0;
let angularVelocity = reducedMotion ? 0 : AUTO_SPIN_RAD_S;
@@ -457,9 +506,10 @@ export async function mountHubGlobe(stage, opts) {
const drawRect = { cx, cy, r, rim, scale: rect.scale * dpr };
ctx.clearRect(0, 0, px, px);
drawGlobeDisk(ctx, cx, cy, r, rotation, continents, globe, mercFlat);
drawRim(ctx, globeImg, cx, cy, r, rim, rect.scale * dpr);
drawOceanLayer(ctx, cx, cy, r, rotation, globe);
drawGridOverlay(ctx, drawRect, rotation);
drawContinentsLayer(ctx, cx, cy, r, rotation, landEq);
drawRim(ctx, globeImg, cx, cy, r, rim, rect.scale * dpr);
ctx.save();
ctx.beginPath();
ctx.arc(cx, cy, r, 0, Math.PI * 2);

2
examples/app_hub/index.php
View File

@@ -180,7 +180,7 @@ unset($__platformDir);
var supportsLayout = !!(window.CSS && CSS.supports && CSS.supports('object-fit', 'cover'));
var logoEnabled = !!(stage && supportsSvg && supportsLayout);
var logoBuild = '20260606globe3';
var logoBuild = '20260606globe4';
function hubAsset(rel) {
var link = document.querySelector('link[href*="hub.css"]');