67 lines
1.9 KiB
JavaScript
67 lines
1.9 KiB
JavaScript
import Map from '../src/ol/Map.js';
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import OSM from '../src/ol/source/OSM.js';
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import TileLayer from '../src/ol/layer/Tile.js';
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import View from '../src/ol/View.js';
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import {ScaleLine, defaults as defaultControls} from '../src/ol/control.js';
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const scaleBarOptionsContainer = document.getElementById('scaleBarOptions');
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const unitsSelect = document.getElementById('units');
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const typeSelect = document.getElementById('type');
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const stepsRange = document.getElementById('steps');
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const scaleTextCheckbox = document.getElementById('showScaleText');
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const invertColorsCheckbox = document.getElementById('invertColors');
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let control;
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function scaleControl() {
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if (typeSelect.value === 'scaleline') {
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control = new ScaleLine({
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units: unitsSelect.value,
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});
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scaleBarOptionsContainer.style.display = 'none';
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} else {
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control = new ScaleLine({
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units: unitsSelect.value,
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bar: true,
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steps: parseInt(stepsRange.value, 10),
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text: scaleTextCheckbox.checked,
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minWidth: 140,
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});
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onInvertColorsChange();
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scaleBarOptionsContainer.style.display = 'block';
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}
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return control;
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}
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const map = new Map({
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controls: defaultControls().extend([scaleControl()]),
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layers: [
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new TileLayer({
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source: new OSM(),
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}),
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],
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target: 'map',
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view: new View({
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center: [0, 0],
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zoom: 2,
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}),
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});
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function reconfigureScaleLine() {
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map.removeControl(control);
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map.addControl(scaleControl());
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}
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function onChangeUnit() {
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control.setUnits(unitsSelect.value);
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}
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function onInvertColorsChange() {
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control.element.classList.toggle(
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'ol-scale-bar-inverted',
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invertColorsCheckbox.checked
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);
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}
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unitsSelect.addEventListener('change', onChangeUnit);
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typeSelect.addEventListener('change', reconfigureScaleLine);
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stepsRange.addEventListener('input', reconfigureScaleLine);
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scaleTextCheckbox.addEventListener('change', reconfigureScaleLine);
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invertColorsCheckbox.addEventListener('change', onInvertColorsChange);
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