Mercurial > gemma
view client/src/components/layers/LegendElement.vue @ 2624:9dbaf69c7a66
Improve geoserver config to better calculate bounding boxes
* Disable the use of estimated extents for the postgis storage
configuration for geoserver, which is set via the gemma middleware.
This way we are able to get better bounding boxes for many layers
where the postgis function `ST_EstimatedExtent()` would be far off.
author | Bernhard Reiter <bernhard@intevation.de> |
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date | Wed, 13 Mar 2019 16:18:39 +0100 |
parents | 89c439721db2 |
children | a3017800e045 |
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<template> <div :id="id" class="legendelement"></div> </template> <script> /* This is Free Software under GNU Affero General Public License v >= 3.0 * without warranty, see README.md and license for details. * * SPDX-License-Identifier: AGPL-3.0-or-later * License-Filename: LICENSES/AGPL-3.0.txt * * Copyright (C) 2018 by via donau * – Österreichische Wasserstraßen-Gesellschaft mbH * Software engineering by Intevation GmbH * * Author(s): * Thomas Junk <thomas.junk@intevation.de> */ import { mapGetters } from "vuex"; import { Map, View } from "ol"; import Feature from "ol/Feature"; import { Vector as VectorLayer } from "ol/layer.js"; import { Vector as VectorSource } from "ol/source.js"; import LineString from "ol/geom/LineString.js"; import Point from "ol/geom/Point"; export default { name: "legendelement", props: ["layername", "layerindex"], data: function() { return { myMap: null, mapLayer: null }; }, computed: { ...mapGetters("map", ["getLayerByName"]), id() { return "legendelement" + this.layerindex; }, mstyle() { if (this.mapLayer && this.mapLayer.data.getStyle) { return this.mapLayer.data.getStyle(); } } }, watch: { mstyle(newStyle, oldStyle) { // only recreate if there already was a style before if (oldStyle) { let vector = this.createVectorLayer(); this.myMap.removeLayer(this.myMap.getLayers()[0]); this.myMap.addLayer(vector); } } }, mounted() { this.mapLayer = this.getLayerByName(this.layername); if (this.mapLayer.data.getType() == "VECTOR") { this.initMap(); } else { // TODO other tiles } }, methods: { initMap() { let vector = this.createVectorLayer(); this.myMap = new Map({ layers: [vector], target: this.id, controls: [], interactions: [], view: new View({ center: [0, 0], zoom: 3, projection: "EPSG:4326" }) }); }, createVectorLayer() { let mapStyle = this.mapLayer.data.getStyle(); let feature = new Feature({ geometry: new LineString([[-1, 0.5], [0, 0], [0.7, 0], [1.3, -0.7]]) }); // special case if we need to call the style function with a special // parameter or to detect a point layer if (this.mapLayer["forLegendStyle"]) { if (this.mapLayer.forLegendStyle.point) { feature.setGeometry(new Point([0, 0])); } mapStyle = this.mapLayer.data.getStyleFunction()( feature, this.mapLayer.forLegendStyle.resolution, true ); } // we could add extra properties here, if they are needed for // the styling function in the future. An idea is to extend the // this.mapLayer["forLegendStyle"] for it. // FIXME, this is a special case for the Fairway Dimensions style feature.set("level_of_service", ""); return new VectorLayer({ source: new VectorSource({ features: [feature], wrapX: false }), style: mapStyle }); } } }; </script> <style lang="scss" scoped> .legendelement { max-height: 1.5rem; width: 2rem; } </style>