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fix layer fingerprinting for some geometries. gyroid test options

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This commit is contained in:
Stewart Allen 2020-05-06 11:05:48 -04:00
commit fe8de60f58
3 changed files with 90 additions and 34 deletions
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114
web/kiri/gyroid-test.html
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@ -31,13 +31,17 @@
min-width: 3px;
min-height: 3px;
}
#stats {
#stats,#opts {
text-align: center;
}
#stats {
margin-top: 5px;
}
#stats > input {
pointer-events: none;
outline: none;
width: 5em;
background-color: #eee;
}
svg {
border: 1px solid #888;
@ -97,33 +101,32 @@
}
class Grid {
constructor(x,y,div) {
this.x = (x/div)|0;
this.y = (y/div)|0;
constructor(size,div) {
this.size = (size/div)|0;
this.div = div;
this.grid = new Array(this.x * this.y);
this.grid = new Array(div * div);
}
get(x,y) {
x = (x/this.div)|0;
y = (y/this.div)|0;
let pos = x + y * this.x;
x = (x/this.size)|0;
y = (y/this.size)|0;
let pos = x + y * this.size;
let rec = this.grid[pos];
if (rec) return rec;
return this.grid[pos] = [];
}
_get(x,y) {
if (x < 0 || y < 0 || x > this.x || y > this.y) return undefined;
return this.grid[x + y * this.x];
if (x < 0 || y < 0 || x > this.size || y > this.size) return undefined;
return this.grid[x + y * this.size];
}
peers(x,y) {
let grid = this.grid;
let r = this.x;
// console.log('peers',x,y)
x = (x/this.div)|0;
y = (y/this.div)|0;
x = (x/this.size)|0;
y = (y/this.size)|0;
let peers = [], p;
p = this._get(x,y); if (p) peers.push(p);
p = this._get(x-1,y); if (p) peers.push(p);
@ -145,17 +148,48 @@
let zcache = {};
let timer = new Timer();
let maxdist = rez * 0.01;
let fast = false;
let fast = true;
let tip = 0.2;
function $(id) {
return document.getElementById(id);
}
function init() {
let opt = document.location.search.substring(1).split('&').map(v => {
return v.split('=').map(v => decodeURIComponent(v));
}).reduce( (m,v) => {
m[v[0]] = v[1];
return m;
}, {});
function reload() {
opt.speed = $('fast').checked ? 'fast' : 'slow';
opt.caps = $('caps').checked ? 1 : 0;
opt.raw = $('raw').checked ? 1 : 0;
let search = [];
Object.entries(opt).forEach((k,v) => {
search.push(encodeURIComponent(k[0]) + '=' + encodeURIComponent(k[1]));
});
document.location.search = search.join('&');
};
$('offset').onkeypress = (ev) => {
if (ev.key === 'Enter') {
opt.offset = $('offset').value;
reload();
}
};
$('offset').focus();
if (opt.offset) tip = $('offset').value = (parseFloat(opt.offset) || 0);
if (opt.raw) $('raw').checked = opt.raw === 1;
if (opt.caps) $('caps').checked = opt.caps === 1;
$('fast').checked = fast = opt.speed !== 'slow';
$('fast').onchange = reload;
$('raw').onchange = update;
$('caps').onchange = update;
$('zval').max = rez;
let mark = Date.now();
for (let z=0; z<PI2; z += inc) {
generate(z);
for (let z=0, zi=0; z<PI2; z += inc) {
generate(z, zi++);
}
console.log(Date.now() - mark, timer.toString());
render(0);
@ -166,7 +200,7 @@
render((z / rez) * PI2);
}
function generate(z) {
function generate(z,zi) {
let zkey = z.toFixed(8);
let cached = zcache[zkey];
@ -181,15 +215,21 @@
let points = 0;
let points_lr = 0;
let points_td = 0;
let tip = 0.2;
let xv = 0;
let sin = new Float32Array(size);
let cos = new Float32Array(size);
for (let i=0, iv=0; i<size; i++) {
sin[i] = Math.sin(iv);
cos[i] = Math.cos(iv);
iv += inc;
}
for (let x=0; x<size; x++) {
let yv = 0;
for (let y=0; y<size; y++) {
vals.put(x,y,
Math.sin(xv) * Math.cos(yv) +
Math.sin(yv) * Math.cos(z) +
Math.sin(z) * Math.cos(xv)
sin[x] * cos[y] +
sin[y] * cos[zi] +
sin[zi] * cos[x]
);
yv += inc;
}
@ -206,7 +246,6 @@
(v0 <= tip && v1 >= tip) || (v0 >= tip && v1 <= tip) ||
(v0 <= -tip && v1 >= -tip) || (v0 >= -tip && v1 <= -tip)
) {
// if ((v0 <= 0 && v1 >= 0) || (v0 >= 0 && v1 <= 0)) {
edge.put(x,y,1);
points++;
points_lr++;
@ -224,7 +263,6 @@
(v0 <= tip && v1 >= tip) || (v0 >= tip && v1 <= tip) ||
(v0 <= -tip && v1 >= -tip) || (v0 >= -tip && v1 <= -tip)
) {
// if ((v0 <= 0 && v1 >= 0) || (v0 >= 0 && v1 <= 0)) {
if (edge.get(x,y)) {
edge.put(x,y,3);
} else {
@ -243,7 +281,7 @@
// create sparse representation
let sparse = [];
let center = rez / 2;
let grid = new Grid(size,size,10);
let grid = new Grid(size,10);
for (let x=0; x<size; x++) {
for (let y=0; y<size; y++) {
let val = edge.get(x,y);
@ -295,7 +333,7 @@
let cl_dst = Infinity; // candidate distance
// look for next closest point to end of chain\
if (fast) {
let peers = grid.peers(target.x,target.y);
let peers = grid.peers(target.x, target.y);
if (peers.length === 0) break;
for (let ps=0, psl=peers.length; ps<psl; ps++) {
let peera = peers[ps];
@ -394,13 +432,16 @@
$('polys').value = polys.length;
// raw threshold points
html.push('<g>');
raw.forEach(point => {
let x = point.x;
let y = point.y;
let color = ['black','#f00a','#0f0a','#00fa'][point.val];
html.push(`<rect dist="${point.dist}" x="${x*wh}" y="${y*wh}" width="${wh}" height="${wh}" style="fill:${color};stroke-width:0"/>`);
})
if ($('raw').checked) {
html.push('<g>');
raw.forEach(point => {
let x = point.x;
let y = point.y;
let color = ['black','#f00a','#0f0a','#00fa'][point.val];
html.push(`<rect dist="${point.dist}" x="${x*wh}" y="${y*wh}" width="${wh}" height="${wh}" style="fill:${color};stroke-width:0"/>`);
})
html.push('</g>');
}
// polys.forEach(poly => {
// poly.forEach(point => {
// let x = point.x;
@ -409,7 +450,6 @@
// html.push(`<rect dist="${point.dist}" x="${x*wh}" y="${y*wh}" width="${wh}" height="${wh}" style="fill:${color};stroke-width:0"/>`);
// });
// });
html.push('</g>');
// points joined into poly lines
html.push('<g>');
@ -419,7 +459,9 @@
.join(',')).join(' ');
let x = poly[0].x - 1;
let y = poly[0].y - 1;
html.push(`<rect x="${x*wh}" y="${y*wh}" width="${wh*3}" height="${wh*3}" style="fill:#f0f5;stroke-width:0"/>`);
if ($('caps').checked) {
html.push(`<rect x="${x*wh}" y="${y*wh}" width="${wh*3}" height="${wh*3}" style="fill:#f0f5;stroke-width:0"/>`);
}
html.push(`<polyline points="${points}"/ fill="none" stroke="black" />`);
});
html.push('</g>');
@ -434,6 +476,12 @@
<div id="test">
<div id="gyroid"></div>
<input id="zval" type="range" min="0" max="200" value="0" oninput="update()"/>
<div id="opts">
<input id="offset" size="5" value="0.2">offset
<input id="raw" type="checkbox" checked>raw
<input id="caps" type="checkbox" checked>caps
<input id="fast" type="checkbox" checked>fast
</div>
<div id="stats">
<input id="points"></input>
<input id="direction"></input>