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earthquake_3d_viewer_front/three/manual/resources/threejs-post-processing-3dl...

142 lines
2.5 KiB
JavaScript

{
class Waiter {
constructor() {
this.promise = new Promise( ( resolve ) => {
this.resolve = resolve;
} );
}
}
async function getSVGDocument( elem ) {
const data = elem.data;
elem.data = '';
elem.data = data;
const waiter = new Waiter();
elem.addEventListener( 'load', waiter.resolve );
await waiter.promise;
return elem.getSVGDocument();
}
const diagrams = {
lookup: {
async init( elem ) {
const svg = await getSVGDocument( elem );
const partsByName = {};
[
'[id$=-Input]',
'[id$=-Output]',
'[id$=-Result]',
].forEach( ( selector ) => {
[ ...svg.querySelectorAll( '[id^=Effect]' ) ].forEach( ( elem ) => {
// because affinity designer doesn't export blend modes (T_T)
// and because I'd prefer not to have to manually fix things as I edit.
// I suppose I could add a build process.
elem.style.mixBlendMode = elem.id.split( '-' )[ 1 ];
} );
[ ...svg.querySelectorAll( selector ) ].forEach( ( elem ) => {
const [ name, type ] = elem.id.split( '-' );
partsByName[ name ] = partsByName[ name ] || {};
partsByName[ name ][ type ] = elem;
elem.style.visibility = 'hidden';
} );
} );
const parts = Object.keys( partsByName ).sort().map( k => partsByName[ k ] );
let ndx = 0;
let step = 0;
let delay = 0;
setInterval( () => {
const part = parts[ ndx ];
switch ( step ) {
case 0:
part.Input.style.visibility = '';
++ step;
break;
case 1:
part.Output.style.visibility = '';
++ step;
break;
case 2:
part.Result.style.visibility = '';
++ step;
break;
case 3:
part.Input.style.visibility = 'hidden';
part.Output.style.visibility = 'hidden';
ndx = ( ndx + 1 ) % parts.length;
if ( ndx === 0 ) {
step = 4;
delay = 4;
} else {
step = 0;
}
break;
case 4:
-- delay;
if ( delay <= 0 ) {
for ( const part of parts ) {
for ( const elem of Object.values( part ) ) {
elem.style.visibility = 'hidden';
}
}
step = 0;
}
break;
}
}, 500 );
},
},
};
[ ...document.querySelectorAll( '[data-diagram]' ) ].forEach( createDiagram );
function createDiagram( base ) {
const name = base.dataset.diagram;
const info = diagrams[ name ];
if ( ! info ) {
throw new Error( `no diagram ${name}` );
}
info.init( base );
}
}