services-ogc 12.0.1-next.2
Install from the command line:
Learn more about npm packages
$ npm install @dlr-eoc/services-ogc@12.0.1-next.2
Install via package.json:
"@dlr-eoc/services-ogc": "12.0.1-next.2"
About this version
This library bundles our clients for OGC standards.
This is a client to communicate with WPS-servers. With it, remote procedures can be called, their status monitored and their results fetched. The service is intended to abstract away the differences between the versions of the WPS protocol. It currently supports both WPS 1.0.0 and WPS 2.0.0.
const c = new WpsClient('1.0.0', httpClient);
const exec$ = c.execute('http://testserver.com/wps', 'processId', inputs, outputDescriptions);
exec$.subscribe(results => console.log(results) );
This is a parser to read from / write to OWC files. OWC can be used to share information about a map-context (such as extent, visible layers, zoom, ...) across multiple clients.
This parser converts to / from UKIS-specific datatypes, like UKIS-rasterlayers, UKIS-vectorlayers etc.
The OWC format is written to be easily extendable. We made use of this capability by adding some UKIS-specific semantic information - this information is encoded in the interfaces found in the file eoc-owc-json.ts
. For more details see OGC OWS Context
const context: IOwsContext = {
bbox: [ -13.684, 28.7793, 61.088, 64.9085 ],
descriptionURL: 'https://code-de.org',
features: [{
geometry: null,
id: 'S3_OLCI_L2_LAN',
properties: {
active: false,
dimensions: [{
display: 'P1D',
name: 'time',
units: 'ISO8601',
value: '2017-01-01/2017-01-01/P1D'
}],
groupName: 'products',
offerings: [{
code: 'http://www.opengis.net/spec/owc-geojson/1.0/req/wms',
operations: [{
code: 'GetMap',
href: 'https://geoservice.code-de.org/Sentinel3/wms?TRANSPARENT=TRUE&LAYERS=S3_OLCI_L2_LAN&VERSION=1.1.1&REQUEST=GetMap&TILED=True&FORMAT=image%2Fvnd.jpeg-png&SERVICE=WMS',
method: 'GET',
type: 'image/vnd.jpeg-png'
},{
code: 'GetCapabilities',
href: 'https://geoservice.code-de.org/Sentinel3/wms?VERSION=1.1.1&REQUEST=GetCapabilities&SERVICE=WMS',
method: 'GET',
type: 'application/xml'
},{
code: 'GetFeatureInfo',
href: 'https://geoservice.code-de.org/Sentinel3/wms?VERSION=1.1.1&REQUEST=GetFeatureInfo&SERVICE=WMS',
method: 'GET',
type: 'text/html'
}]
}],
title: 'Sentinel-3 OLCI - Level 2 Land Product',
updated: '2019-02-15T13:23:28'
},
type: 'Feature'
}],
id: 'codede:sentinel:3035',
logoURL: 'https://geoservice.dlr.de/static/logos/dlr.gif',
projections: [{
bbox: [ 2000000.0, 1000000.0, 6500000.0, 5500000.0 ],
code: 'EPSG:3035',
default: true,
unit: 'm'
}],
properties: {
abstract: '<strong>CODE-DE</strong> Sentinel1 and 2',
author: 'Geoservice Manager',
authors: [{
email: '[email protected]',
name: 'Geoservice Manager',
role: 'PoC'
}],
categories: [{
term: 'WMS'
},{
term: 'DLR'
}],
lang: 'en',
layerGroups: [{
collapsed: false,
groupName: 'products',
title: 'Products',
type: 'checkbox'
},{
collapsed: false,
groupName: 'overlays',
title: 'Overlays',
type: 'checkbox'
},{
collapsed: false,
groupName: 'base',
title: 'Basemaps',
type: 'radio'
}],
links: null,
publisher: 'German Aerospace Center (DLR)',
title: 'CODE-DE Sentinel 1 and 2 (EPSG:3035)',
updated: '2019-02-15T13:23:28'
},
type: 'FeatureCollection'
};
const service = new OwcJsonService();
for (const resource of service.getResources(context)) {
for (const offering of resource.properties.offerings) {
if (service.checkIfServiceOffering(offering)) {
const operation = offering.operations[0];
const rlayerOptions$ = service.createRasterLayerFromOffering(offering, resource, context, targetProjection);
rlayerOptions$.subscribe((rlayerOptions: RasterLayer) => console.log(rlayerOptions) );
}
}
}
Parts of this library depend on jsonix. The current version of jsonix (3.0.0) does not build to ES2015. To still be able to use this library, we created a fork with some minor modifications. As soon as the main repository of jsonix has fixed its build problems (we're working on a pull-request) we can move from our fork back to the main repo.
This is a client for CSW servers (https://www.ogc.org/standards/cat). It supports all required CSW operations.
Only a minimal set of parameters is expected to be passed to the client, freeing the user of the need to build potentially deeply nested structures as bodies for the CSW.
All data is marshalled and unmarshalled to json by Jsonix.
Note: currently, search in the GetRecords
operation only works by passing a CQL string, not by passing an XML-tree.
This is a wrapper around the EOXC opensearch-client. While that package provides an OpensearchService
, it does only allow searching through links of the results
type, not through collection
links. This wrapper instead exposes the packages search
functionality, so that the user can decide for himself which search-url to use. This way a search entails more steps, but allows for more control, too.
Example:
const osw = new OpensearchWrapperService();
// step 1: parse description.xml for searchable urls
osw.discover(osServerUrl).pipe(
map((instance: OpenSearchService) => {
const urls = osw.getUrls(instance);
// step 2: select the url to search
return urls[3];
}),
switchMap((url: OpenSearchUrl) => {
// step 3: do the actual search. The possible search-parameters are described in the `URL` object.
const parameters = {
parentIdentifier: 'EOP:CODE-DE:S2_MSI_L1C',
startDate: '2020-06-01T00:00:00Z',
endDate: '2020-06-07T23:59:59Z',
};
return osw.search(url, parameters);
})
).subscribe((results: OpenSearchResult | Response) => {
expect(results).toBeTruthy();
});
===
This library was generated with Angular CLI version 8.2.14.
While openlayers already has a decent WMS-client, it doesn't quite cover some operations fully. The service WMSService
allows to make calls to a WMS's GetCapabilities
, so that existing layers can be parsed automatically.
Run ng generate component component-name --project services-ogc
to generate a new component. You can also use ng generate directive|pipe|service|class|guard|interface|enum|module --project services-ogc
.
Note: Don't forget to add
--project services-ogc
or else it will be added to the default project in yourangular.json
file.
Run ng build services-ogc
to build the project. The build artifacts will be stored in the dist/
directory.
After building your library with ng build services-ogc
, go to the dist folder cd dist/services-ogc
and run npm publish
.
Run ng test services-ogc
to execute the unit tests via Karma.
To get more help on the Angular CLI use ng help
or go check out the Angular CLI README.
Details
- services-ogc
- dlr-eoc
- 10 months ago
- Apache-2.0
- 15 dependencies
Assets
- services-ogc-12.0.1-next.2.tgz
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