3d-tiles-renderer
Version:
https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/specification
52 lines (35 loc) • 1.07 kB
JavaScript
import { ProjectionScheme } from '../utils/ProjectionScheme.js';
import { TiledImageSource } from './TiledImageSource.js';
export class XYZImageSource extends TiledImageSource {
constructor( options = {} ) {
const {
levels = 20,
tileDimension = 256,
url = null,
...rest
} = options;
super( rest );
this.tileDimension = tileDimension;
this.levels = levels;
this.url = url;
}
getUrl( x, y, level ) {
return this.url
.replace( /{\s*z\s*}/gi, level )
.replace( /{\s*x\s*}/gi, x )
.replace( /{\s*(y|reverseY|-\s*y)\s*}/gi, y );
}
init() {
// transform the url
const { tiling, tileDimension, levels, url } = this;
tiling.flipY = ! /{\s*reverseY|-\s*y\s*}/g.test( url );
tiling.setProjection( new ProjectionScheme( 'EPSG:3857' ) );
tiling.setContentBounds( ...tiling.projection.getBounds() );
tiling.generateLevels( levels, tiling.projection.tileCountX, tiling.projection.tileCountY, {
tilePixelWidth: tileDimension,
tilePixelHeight: tileDimension,
} );
this.url = url;
return Promise.resolve();
}
}