Files
openlayers/test/rendering/cases/webgl-data-tile-tilepixelratio2/main.js
2022-08-03 17:48:24 +01:00

35 lines
785 B
JavaScript

import DataTile from '../../../../src/ol/source/DataTile.js';
import Map from '../../../../src/ol/Map.js';
import TileLayer from '../../../../src/ol/layer/WebGLTile.js';
import View from '../../../../src/ol/View.js';
import {createXYZ} from '../../../../src/ol/tilegrid.js';
const size = 512;
const data = new Uint8Array(size * size);
for (let row = 0; row < size; ++row) {
for (let col = 0; col < size; ++col) {
data[row * size + col] = (row + col) % 2 === 0 ? 255 : 0;
}
}
new Map({
target: 'map',
layers: [
new TileLayer({
source: new DataTile({
tileSize: size,
tileGrid: createXYZ({maxZoom: 0}),
maxZoom: 0,
loader: () => data,
}),
}),
],
view: new View({
center: [0, 0],
zoom: 4,
}),
});
render();