Files
openlayers/examples/center.js
2017-12-19 08:45:00 +01:00

98 lines
3.2 KiB
JavaScript

import _ol_Map_ from '../src/ol/Map.js';
import _ol_View_ from '../src/ol/View.js';
import {defaults as defaultControls} from '../src/ol/control.js';
import GeoJSON from '../src/ol/format/GeoJSON.js';
import TileLayer from '../src/ol/layer/Tile.js';
import _ol_layer_Vector_ from '../src/ol/layer/Vector.js';
import _ol_source_OSM_ from '../src/ol/source/OSM.js';
import _ol_source_Vector_ from '../src/ol/source/Vector.js';
import _ol_style_Circle_ from '../src/ol/style/Circle.js';
import _ol_style_Fill_ from '../src/ol/style/Fill.js';
import _ol_style_Stroke_ from '../src/ol/style/Stroke.js';
import _ol_style_Style_ from '../src/ol/style/Style.js';
var source = new _ol_source_Vector_({
url: 'data/geojson/switzerland.geojson',
format: new GeoJSON()
});
var style = new _ol_style_Style_({
fill: new _ol_style_Fill_({
color: 'rgba(255, 255, 255, 0.6)'
}),
stroke: new _ol_style_Stroke_({
color: '#319FD3',
width: 1
}),
image: new _ol_style_Circle_({
radius: 5,
fill: new _ol_style_Fill_({
color: 'rgba(255, 255, 255, 0.6)'
}),
stroke: new _ol_style_Stroke_({
color: '#319FD3',
width: 1
})
})
});
var vectorLayer = new _ol_layer_Vector_({
source: source,
style: style
});
var view = new _ol_View_({
center: [0, 0],
zoom: 1
});
var map = new _ol_Map_({
layers: [
new TileLayer({
source: new _ol_source_OSM_()
}),
vectorLayer
],
target: 'map',
controls: defaultControls({
attributionOptions: {
collapsible: false
}
}),
view: view
});
var zoomtoswitzerlandbest = document.getElementById('zoomtoswitzerlandbest');
zoomtoswitzerlandbest.addEventListener('click', function() {
var feature = source.getFeatures()[0];
var polygon = /** @type {ol.geom.SimpleGeometry} */ (feature.getGeometry());
view.fit(polygon, {padding: [170, 50, 30, 150], constrainResolution: false});
}, false);
var zoomtoswitzerlandconstrained =
document.getElementById('zoomtoswitzerlandconstrained');
zoomtoswitzerlandconstrained.addEventListener('click', function() {
var feature = source.getFeatures()[0];
var polygon = /** @type {ol.geom.SimpleGeometry} */ (feature.getGeometry());
view.fit(polygon, {padding: [170, 50, 30, 150]});
}, false);
var zoomtoswitzerlandnearest =
document.getElementById('zoomtoswitzerlandnearest');
zoomtoswitzerlandnearest.addEventListener('click', function() {
var feature = source.getFeatures()[0];
var polygon = /** @type {ol.geom.SimpleGeometry} */ (feature.getGeometry());
view.fit(polygon, {padding: [170, 50, 30, 150], nearest: true});
}, false);
var zoomtolausanne = document.getElementById('zoomtolausanne');
zoomtolausanne.addEventListener('click', function() {
var feature = source.getFeatures()[1];
var point = /** @type {ol.geom.SimpleGeometry} */ (feature.getGeometry());
view.fit(point, {padding: [170, 50, 30, 150], minResolution: 50});
}, false);
var centerlausanne = document.getElementById('centerlausanne');
centerlausanne.addEventListener('click', function() {
var feature = source.getFeatures()[1];
var point = /** @type {ol.geom.Point} */ (feature.getGeometry());
var size = /** @type {ol.Size} */ (map.getSize());
view.centerOn(point.getCoordinates(), size, [570, 500]);
}, false);