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add-layers-vector.module.js
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add-layers-vector.module.js
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import { DragAndDrop } from 'ol/interaction';
import { GPX, IGC,KML, TopoJSON, GeoJSON } from 'ol/format';
import SparqlJson from 'hs.source.SparqlJson'
import WfsSource from 'hs.source.Wfs'
import 'components/styles/styles.module';
import * as loadingstrategy from 'ol/loadingstrategy';
import {transform, transformExtent, get as getProj} from 'ol/proj';
import { Vector } from 'ol/source';
import VectorLayer from 'ol/layer/Vector';
/**
* @namespace hs.addLayersVector
* @memberOf hs
*/
angular.module('hs.addLayersVector', ['hs.styles'])
/**
* @memberof hs.ows
* @ngdoc directive
* @name hs.addLayersVector
* @description TODO
*/
.directive('hs.addLayersVector', ['config', function (config) {
return {
template: require('components/add-layers/partials/add-vector-layer.directive.html')
};
}])
/**
* @memberof hs.addLayersVector
* @ngdoc service
* @name hs.addLayersVector.service
* @description Service handling adding nonwms OWS services or files. Handles also drag and drop addition.
*/
.service('hs.addLayersVector.service', ['config', 'Core', '$rootScope', 'hs.map.service', 'hs.styles.service', 'hs.utils.service', '$http', 'hs.save-map.service', 'hs.permalink.urlService',
function (config, Core, $rootScope, OlMap, styles, utils, $http, statusCreator, permalink) {
var me = this;
/**
* Load nonwms OWS data and create layer
* @memberof hs.addLayers
* @function add
* @param {String} type Type of data to load (supports Kml, Geojson, Wfs and Sparql)
* @param {String} url Url of data/service localization
* @param {String} title Title of new layer
* @param {String} abstract Abstract of new layer
* @param {Boolean} extract_styles Extract styles
* @param {String} srs EPSG code of selected projection (eg. "EPSG:4326")
* @param {Object} options Other options
*/
me.add = function (type, url, title, abstract, extract_styles, srs, options) {
var format;
var definition = {};
var src;
definition.url = url;
if (angular.isUndefined(options)) {
var options = {};
}
if (type.toLowerCase() != 'sparql' && angular.isDefined(url)) {
url = utils.proxify(url);
}
if(url.toLowerCase().endsWith('kml')){
format = new KML({
extractStyles: extract_styles
});
definition.format = "ol.format.KML";
}
if(url.toLowerCase().endsWith('geojson') || url.toLowerCase().endsWith('json')){
format = new GeoJSON();
definition.format = "ol.format.GeoJSON";
}
if(url.toLowerCase().endsWith('gpx')){
format = new GPX();
definition.format = "ol.format.GPX";
}
if(type.toLowerCase() == "sparql"){
definition.format = "hs.format.Sparql";
}
if (definition.format == 'hs.format.Sparql') {
src = new SparqlJson({
geom_attribute: '?geom',
url: url,
category_field: 'http://www.openvoc.eu/poi#categoryWaze',
projection: 'EPSG:3857',
minResolution: 1,
maxResolution: 38
//feature_loaded: function(feature){feature.set('hstemplate', 'hs.geosparql_directive')}
});
} else if (definition.format == 'hs.format.WFS') {
src = new WfsSource(options.defOptions);
} else if (angular.isDefined(options.features)) {
src = createVectorSourceFromFeatures(srs, options);
OlMap.map.getView().fit(src.getExtent(), OlMap.map.getSize());
} else {
src = createVectorSource(format, url, extract_styles, srs)
}
//src.set('loaded', true); Should be set when ajax call finishes
src.set('from_composition', options.from_composition || false);
var lyr = new VectorLayer({
abstract: abstract,
definition: definition,
from_composition: options.from_composition || false,
opacity: options.opacity || 1,
saveState: true,
source: src,
style: options.style,
title: title
});
var key = src.on('propertychange', function (event) {
if (event.key == 'loaded') {
if (event.oldValue == false) {
$rootScope.$broadcast('layermanager.layer_loaded', lyr)
} else {
$rootScope.$broadcast('layermanager.layer_loading', lyr)
}
};
})
var listenerKey = src.on('change', function (e) {
if (src.getState() == 'ready' && (angular.isUndefined(src.get('from_composition')) || !src.get('from_composition'))) {
if (src.getFeatures().length == 0) return;
var extent = src.getExtent(); //src.unByKey(listenerKey);
if (!isNaN(extent[0]) && !isNaN(extent[1]) && !isNaN(extent[2]) && !isNaN(extent[3]))
OlMap.map.getView().fit(extent, OlMap.map.getSize());
}
});
if (options.from_composition != true) {
OlMap.map.addLayer(lyr);
}
return lyr;
};
function createVectorSource(format, url, extract_styles, srs){
var src = new Vector({
format: format,
url: url,
projection: getProj(srs),
extractStyles: extract_styles,
loader: function (extent, resolution, projection) {
this.set('loaded', false);
var me = this;
$http({ url: url }). //context: this?
then(function (response) {
var data = response.data;
if (data.type == 'GeometryCollection') {
var temp = {
type: "Feature",
geometry: data
};
data = temp;
}
me.addFeatures(format.readFeatures(data, {
dataProjection: srs,
featureProjection: OlMap.map.getView().getProjection().getCode()
}));
//TODO probably we should not do this. Have to check when styler is operational
src.hasLine = false;
src.hasPoly = false;
src.hasPoint = false;
angular.forEach(src.getFeatures(), function (f) {
if (f.getGeometry()) {
switch (f.getGeometry().getType()) {
case 'LineString' || 'MultiLineString':
src.hasLine = true;
break;
case 'Polygon' || 'MultiPolygon':
src.hasPoly = true;
break;
case 'Point' || 'MultiPoint':
src.hasPoint = true;
break;
}
}
})
if (src.hasLine || src.hasPoly || src.hasPoint) {
src.styleAble = true;
}
me.set('loaded', true);
}, function (err) {
me.error = true;
me.errorMessage = err.status;
me.set('loaded', true);
});
},
strategy: loadingstrategy.all
});
return src;
}
function createVectorSourceFromFeatures(srs, options){
var src = new Vector({
projection: srs,
features: options.features
});
src.hasLine = false;
src.hasPoly = false;
src.hasPoint = false;
angular.forEach(src.getFeatures(), function (f) {
if (f.getGeometry()) {
switch (f.getGeometry().getType()) {
case 'LineString' || 'MultiLineString':
src.hasLine = true;
break;
case 'Polygon' || 'MultiPolygon':
src.hasPoly = true;
break;
case 'Point' || 'MultiPoint':
src.hasPoint = true;
break;
}
}
})
if (src.hasLine || src.hasPoly || src.hasPoint) {
src.styleAble = true;
}
return src;
}
/**
* (PRIVATE) Zoom to selected vector layer
* @memberof hs.addLayers
* @function zoomToVectorLayer
* @param {ol.Layer} lyr New layer
*/
function zoomToVectorLayer(lyr) {
Core.setMainPanel('layermanager');
lyr.getSource().on('change', function () { //Event needed because features are loaded asynchronously
var extent = lyr.getSource().getExtent();
if (extent != null) OlMap.map.getView().fit(extent, OlMap.map.getSize());
});
}
me.checkUrlParamsAndAdd = function(){
var title = decodeURIComponent(permalink.getParamValue('title')) || 'Layer';
var abstract = decodeURIComponent(permalink.getParamValue('abstract'));
if (permalink.getParamValue('geojson_to_connect')) {
var url = permalink.getParamValue('geojson_to_connect');
var type = 'geojson';
if (url.indexOf('gpx') > 0) type = 'gpx';
if (url.indexOf('kml') > 0) type = 'kml';
var lyr = me.add(type, url, title, abstract, false, 'EPSG:4326');
zoomToVectorLayer(lyr);
}
if (permalink.getParamValue('kml_to_connect')) {
var url = permalink.getParamValue('kml_to_connect');
var lyr = me.add('kml', url, title, abstract, true, 'EPSG:4326');
zoomToVectorLayer(lyr);
}
}
var dragAndDrop = new DragAndDrop({
formatConstructors: [
GPX,
GeoJSON,
IGC,
KML,
TopoJSON
]
});
$rootScope.$on('map.loaded', function () {
OlMap.map.addInteraction(dragAndDrop);
me.checkUrlParamsAndAdd()
});
dragAndDrop.on('addfeatures', function (event) {
if (event.features.length > 0) {
var f = new GeoJSON();
//TODO Saving to statusmanager should probably be done with statusmanager component throught events
var url = '';
try {
url = statusCreator.endpointUrl();
} catch (ex) { }
if (console) console.info(url, config);
var options = {};
options.features = event.features;
$http({
url: url,
method: 'POST',
data: JSON.stringify({
project: config.project_name,
title: event.file.name,
request: 'saveData',
dataType: "json",
data: f.writeFeatures(event.features, {
dataProjection: 'EPSG:4326',
featureProjection: OlMap.map.getView().getProjection().getCode()
})
})
}).then(function (response) {
data = {};
data.url = url + "?request=loadData&id=" + response.data.id;
if (console) console.info(data.url, response.data);
data.title = event.file.name;
data.projection = event.projection;
var lyr = me.add('geojson', decodeURIComponent(data.url), data.title || 'Layer', '', true, data.projection, options);
}, function (e) {
if (console) console.warn(e);
data = {};
data.title = event.file.name;
data.projection = event.projection;
var lyr = me.add('geojson', undefined, data.title || 'Layer', '', true, data.projection, options);
});
}
});
}
])
/**
* @memberof hs.addLayersVector
* @ngdoc controller
* @name hs.addLayersVector.controller
*/
.controller('hs.addLayersVector.controller', ['$scope', 'hs.map.service', 'hs.styles.service', 'hs.addLayersVector.service', 'Core',
function ($scope, OlMap, styles, service, Core) {
$scope.srs = 'EPSG:4326';
$scope.title = "";
$scope.extract_styles = false;
/**
* Handler for adding nonwms service, file in template.
* @memberof hs.addLayersVector.controller
* @function add
*/
$scope.add = function () {
service.add($scope.type, $scope.url, $scope.title, $scope.abstract, $scope.extract_styles, $scope.srs);
Core.setMainPanel('layermanager');
}
}
]);