gmap-ol/dist/MapToolUtil/zoomToFitExtent.js

A set of helper classes for working with openLayers.

/*
 * @Author: xuhongling
 * @Date:   2022-09-06 14:48:35
 * @Last Modified by:   xuhongling
 * @Last Modified time: 2024-04-18 15:41:51
 */
import { getLayerByName } from '../LayerUtil/LayerUtil';

function zoomToFitExtent(olMap, options) {
  const views = olMap.getView();
  const layer = getLayerByName(olMap, options.layerName);
  if (!layer) return;
  const features = layer.getSource().getFeatures();
  for (let i = 0; i < features.length; i++) {
    let feature = features[i];
    let NAME = feature.get('NAME');
    let name = options.name ? options.name : '';
    let fitPadding = options.padding ? options.padding : [50, 50, 50, 50];
    let fitMaxZoom = options.maxZoom ? options.maxZoom : 18;
    const polygon0 = features[0].getGeometry();
    views.fit(polygon0, { padding: fitPadding, maxZoom: fitMaxZoom, duration: 800 });
    if (NAME === name) {
      const polygon = feature.getGeometry();
      views.fit(polygon, { padding: fitPadding, maxZoom: fitMaxZoom, duration: 800 });
    }
  }
}

export default zoomToFitExtent;