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Remove unnecessary parts from the Mapbox layer example

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This commit is contained in:
Tim Schaub
2019-05-14 09:03:57 -06:00
parent eafb657264
commit f312706269
1 changed files with 61 additions and 77 deletions
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138
examples/mapbox-layer.js
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@@ -1,12 +1,68 @@
import Map from '../src/ol/Map.js'; import Map from '../src/ol/Map.js';
import View from '../src/ol/View.js'; import View from '../src/ol/View.js';
import Layer from '../src/ol/layer/Layer'; import Layer from '../src/ol/layer/Layer';
import {toLonLat} from '../src/ol/proj'; import {toLonLat, fromLonLat} from '../src/ol/proj';
import {Stroke, Style} from '../src/ol/style.js'; import {Stroke, Style} from '../src/ol/style.js';
import VectorLayer from '../src/ol/layer/Vector.js'; import VectorLayer from '../src/ol/layer/Vector.js';
import VectorSource from '../src/ol/source/Vector.js'; import VectorSource from '../src/ol/source/Vector.js';
import GeoJSON from '../src/ol/format/GeoJSON.js'; import GeoJSON from '../src/ol/format/GeoJSON.js';
const center = [-98.8, 37.9];
const key = 'ER67WIiPdCQvhgsUjoWK';
const mbMap = new mapboxgl.Map({
style: 'https://maps.tilehosting.com/styles/bright/style.json?key=' + key,
attributionControl: false,
boxZoom: false,
center: center,
container: 'map',
doubleClickZoom: false,
dragPan: false,
dragRotate: false,
interactive: false,
keyboard: false,
pitchWithRotate: false,
scrollZoom: false,
touchZoomRotate: false
});
const mbLayer = new Layer({
render: function(frameState) {
const canvas = mbMap.getCanvas();
const viewState = frameState.viewState;
const visible = mbLayer.getVisible();
canvas.style.display = visible ? 'block' : 'none';
const opacity = mbLayer.getOpacity();
canvas.style.opacity = opacity;
// adjust view parameters in mapbox
const rotation = viewState.rotation;
if (rotation) {
mbMap.rotateTo(-rotation * 180 / Math.PI, {
animate: false
});
}
mbMap.jumpTo({
center: toLonLat(viewState.center),
zoom: viewState.zoom - 1,
animate: false
});
// cancel the scheduled update & trigger synchronous redraw
// see https://github.com/mapbox/mapbox-gl-js/issues/7893#issue-408992184
// NOTE: THIS MIGHT BREAK WHEN UPDATING MAPBOX
if (mbMap._frame) {
mbMap._frame.cancel();
mbMap._frame = null;
}
mbMap._render();
return canvas;
}
});
const style = new Style({ const style = new Style({
stroke: new Stroke({ stroke: new Stroke({
color: '#319FD3', color: '#319FD3',
@@ -25,80 +81,8 @@ const vectorLayer = new VectorLayer({
const map = new Map({ const map = new Map({
target: 'map', target: 'map',
view: new View({ view: new View({
center: [-10997148, 4569099], center: fromLonLat(center),
zoom: 4, zoom: 4
minZoom: 1, }),
extent: [-Infinity, -20048966.10, Infinity, 20048966.10], layers: [mbLayer, vectorLayer]
smoothExtentConstraint: false,
smoothResolutionConstraint: false
})
}); });
// init Mapbox object
const view = map.getView();
const center = toLonLat(view.getCenter(), view.getProjection());
const key = 'ER67WIiPdCQvhgsUjoWK';
const mbMap = new mapboxgl.Map({
style: 'https://maps.tilehosting.com/styles/bright/style.json?key=' + key,
attributionControl: false,
boxZoom: false,
center: center,
container: map.getTargetElement(),
doubleClickZoom: false,
dragPan: false,
dragRotate: false,
interactive: false,
keyboard: false,
pitchWithRotate: false,
scrollZoom: false,
touchZoomRotate: false,
zoom: view.getZoom() - 1
});
// init OL layers
const mbLayer = new Layer({
render: function(frameState) {
const canvas = mbMap.getCanvas();
const view = map.getView();
const visible = mbLayer.getVisible();
canvas.style.display = visible ? 'block' : 'none';
const opacity = mbLayer.getOpacity();
canvas.style.opacity = opacity;
// adjust view parameters in mapbox
const rotation = frameState.viewState.rotation;
if (rotation) {
mbMap.rotateTo(-rotation * 180 / Math.PI, {
animate: false
});
}
const center = toLonLat(view.getCenter(), view.getProjection());
const zoom = view.getZoom() - 1;
mbMap.jumpTo({
center: center,
zoom: zoom,
animate: false
});
// cancel the scheduled update & trigger synchronous redraw
// see https://github.com/mapbox/mapbox-gl-js/issues/7893#issue-408992184
// NOTE: THIS MIGHT BREAK WHEN UPDATING MAPBOX
if (mbMap._frame) {
mbMap._frame.cancel();
mbMap._frame = null;
}
mbMap._render();
return canvas;
}
});
map.addLayer(mbLayer);
map.addLayer(vectorLayer);