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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| import {LitElement, html, css} from 'lit'; | ||
| import { layerIntersect } from '../utils/layerintersect'; | ||
| import getVisibleFeatures from '../utils/mbox-features'; | ||
| import './wc-button'; | ||
|
|
||
| class MapDatatoolIntersect extends LitElement { | ||
| static get styles() { | ||
| return css` | ||
| :host { | ||
| display: block; | ||
| }` | ||
| } | ||
| static get properties() { | ||
| return { | ||
| resulttype: {type: String}, | ||
| map: {type: Object}, | ||
| intersectCount: {type: Number} | ||
| }; | ||
| } | ||
| constructor() { | ||
| super(); | ||
| this.resulttype = 'aantal'; | ||
| this.map = {}; | ||
| this.intersectCount = -1; | ||
| } | ||
| connectedCallback() { | ||
| super.connectedCallback() | ||
| //addEventListener('keydown', this._handleKeydown); | ||
| } | ||
| disconnectedCallback() { | ||
| super.disconnectedCallback() | ||
| //window.removeEventListener('keydown', this._handleKeydown); | ||
| } | ||
| shouldUpdate(changedProp) { | ||
| if (changedProp.has('sprop')) { | ||
| // do something with sprop change | ||
| } | ||
| return true; | ||
| } | ||
| render() { | ||
| return html` | ||
| <b>Intersect berekenen</b><p></p> | ||
| Bereken elementen in kaartlaag 1 die een element in kaartlaag2 snijden (ergens raken)<p></p> | ||
| <b>Kaartlaag 1</b><br> | ||
| ${this._renderLayerList()} | ||
| <b>Kaartlaag 2</b><br> | ||
| ${this._renderLayerList()} | ||
| <input type="radio" name="resulttype" value="aantal" id="aantal" ?checked="${this.resulttype==='aantal'}"><label for="aantal">Aantal</label><br> | ||
| <input type="radio" name="resulttype" value="layeryes" id="layeryes" ?checked="${this.resulttype==='layeryes'}"><label for="layeryes">Uitvoerkaartlaag met elementen met een overlap</label><br> | ||
| <input type="radio" name="resulttype" value="layerno" id="layerno" ?checked="${this.resulttype==='layerno'}"><label for="layerno">Uitvoerkaartlaag met elementen zonder een overlap</label><br> | ||
| <wc-button class="edugisblue" @click="${e=>this._handleClick(e)}" ?disabled="${!this.buttonEnabled}">Berekenen</wc-button><br> | ||
| ${this.intersectCount > -1 ?html`Aantal elementen: ${this.intersectCount}`:html``} | ||
| </div> | ||
| ` | ||
| } | ||
| firstUpdated() { | ||
|
|
||
| } | ||
| updated() { | ||
|
|
||
| } | ||
| _layerSelected(e) { | ||
| const selections = this.shadowRoot.querySelectorAll('select'); | ||
| this.buttonEnabled = (selections.length === 2 && (selections[0].value != selections[1].value) && (selections[0].value !== '') && selections[1].value !== ''); | ||
| this.sourceLayerid = this.buttonEnabled ? selections[0].value : undefined; | ||
| this.targetLayerid = this.buttonEnabled ? selections[1].value : undefined; | ||
| this.intersectCount = -1; | ||
| this.update(); | ||
| } | ||
| _renderLayerList() { | ||
| const layers = this.map.getStyle().layers.filter(layer=>layer.metadata && !layer.metadata.reference && !layer.metadata.isToolLayer && ['fill','line','circle','symbol'].includes(layer.type)); | ||
| if (layers.length < 2) { | ||
| return html`${layers.length} kaartlagen aanwezig (minimmaal 2 nodig)`; | ||
| } | ||
| return html`<div class="styled-select"><select @change="${e=>this._layerSelected(e)}"> | ||
| <option value="" disabled selected>Selecteer kaartlaag</option> | ||
| ${layers.map(layer=>html`<option value=${layer.id}>${layer.metadata.title?layer.metadata.title:layer.id}</option>`)} | ||
| </select><span class="arrow"></span></div>` | ||
| } | ||
| async _calculateIntersect() { | ||
| if (this.sourceLayerid && this.targetLayerid) { | ||
| const sourceFeatures = await getVisibleFeatures(this.map, this.sourceLayerid); | ||
| const targetFeatures = await getVisibleFeatures(this.map, this.targetLayerid); | ||
| const intersectLayer = layerIntersect({type: "FeatureCollection", features:sourceFeatures}, {type:"FeatureCollection", features:targetFeatures}); | ||
| this.intersectCount = intersectLayer.features.reduce((total, feature)=>{ | ||
| return feature.properties.intersect?total+1:total | ||
| }, 0); | ||
| this.update(); | ||
| } | ||
| } | ||
| _handleClick(e) { | ||
| if (!this.buttonEnabled) { | ||
| return; | ||
| } | ||
| this._calculateIntersect(); | ||
| } | ||
| } | ||
|
|
||
| customElements.define('map-datatool-intersect', MapDatatoolIntersect); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| export function cloneJSON(obj) { | ||
| // basic type deep copy | ||
| if (obj === null || obj === undefined || typeof obj !== 'object') { | ||
| return obj | ||
| } | ||
| // array deep copy | ||
| if (obj instanceof Array) { | ||
| var cloneA = []; | ||
| for (var i = 0; i < obj.length; ++i) { | ||
| cloneA[i] = cloneJSON(obj[i]); | ||
| } | ||
| return cloneA; | ||
| } | ||
| // object deep copy | ||
| var cloneO = {}; | ||
| for (var i in obj) { | ||
| cloneO[i] = cloneJSON(obj[i]); | ||
| } | ||
| return cloneO; | ||
| } | ||
|
|
||
| export default cloneJSON; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| import Flatbush from 'flatbush'; | ||
| import cloneJSON from '../utils/clonejson'; | ||
|
|
||
| function flatBushIndex(layer) { | ||
| const flatbushIndex = new Flatbush(layer.features.length); | ||
| for (const feature of layer.features) { | ||
| const bbox = turf.bbox(feature); | ||
| flatbushIndex.add(bbox[0], bbox[1], bbox[2], bbox[3]); | ||
| } | ||
| flatbushIndex.finish(); | ||
| return flatbushIndex; | ||
| } | ||
|
|
||
| export function layerIntersect(layer1, layer2) { | ||
| if (layer1 && layer1.type && layer1.type === "FeatureCollection" && layer2 && layer2.type && layer2.type === "FeatureCollection") { | ||
| // create index on layer2 | ||
| const layerIndex = flatBushIndex(layer2); | ||
| layer1 = cloneJSON(layer1); | ||
| for (const feature of layer1.features) { | ||
| const bbox = turf.bbox(feature); | ||
| const intersectCandidates = layerIndex.search(bbox[0], bbox[1], bbox[2], bbox[3]); | ||
| for (const candidate of intersectCandidates) { | ||
| const feature2 = layer2.features[candidate]; | ||
| if (turf.booleanIntersects(feature, feature2)) { | ||
| feature.properties.intersect = true; | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| for (const feature of layer1.features) { | ||
| if (!feature.properties.intersect) { | ||
| feature.properties.intersect = false; | ||
| } | ||
| } | ||
| return layer1; | ||
| } |
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