mirror of
https://github.com/nasa/openmct.git
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284 lines
10 KiB
JavaScript
284 lines
10 KiB
JavaScript
/*****************************************************************************
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* Open MCT, Copyright (c) 2014-2022, United States Government
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* as represented by the Administrator of the National Aeronautics and Space
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* Administration. All rights reserved.
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*
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* Open MCT is licensed under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* Open MCT includes source code licensed under additional open source
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* licenses. See the Open Source Licenses file (LICENSES.md) included with
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* this source code distribution or the Licensing information page available
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* at runtime from the About dialog for additional information.
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*****************************************************************************/
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const DEFAULT_IMAGE_SAMPLES = [
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18731.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18732.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18733.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18734.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18735.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18736.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18737.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18738.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18739.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18740.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18741.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18742.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18743.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18744.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18745.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18746.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18747.jpg",
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"https://www.hq.nasa.gov/alsj/a16/AS16-117-18748.jpg"
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];
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const DEFAULT_IMAGE_LOAD_DELAY_IN_MILISECONDS = 20000;
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const MIN_IMAGE_LOAD_DELAY_IN_MILISECONDS = 5000;
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let openmctInstance;
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export default function () {
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return function install(openmct) {
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openmctInstance = openmct;
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openmct.types.addType('example.imagery', {
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key: 'example.imagery',
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name: 'Example Imagery',
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cssClass: 'icon-image',
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description: 'For development use. Creates example imagery '
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+ 'data that mimics a live imagery stream.',
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creatable: true,
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initialize: (object) => {
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object.configuration = {
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imageLocation: '',
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imageLoadDelayInMilliSeconds: DEFAULT_IMAGE_LOAD_DELAY_IN_MILISECONDS,
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imageSamples: [],
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layers: []
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};
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object.telemetry = {
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values: [
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{
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name: 'Name',
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key: 'name'
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},
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{
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name: 'Time',
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key: 'utc',
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format: 'utc',
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hints: {
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domain: 2
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}
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},
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{
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name: 'Local Time',
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key: 'local',
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format: 'local-format',
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hints: {
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domain: 1
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}
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},
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{
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name: 'Image',
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key: 'url',
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format: 'image',
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hints: {
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image: 1
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},
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layers: [
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{
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source: 'dist/imagery/example-imagery-layer-16x9.png',
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name: '16:9'
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},
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{
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source: 'dist/imagery/example-imagery-layer-safe.png',
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name: 'Safe'
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},
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{
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source: 'dist/imagery/example-imagery-layer-scale.png',
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name: 'Scale'
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}
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]
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},
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{
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name: 'Image Thumbnail',
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key: 'thumbnail-url',
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format: 'thumbnail',
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hints: {
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thumbnail: 1
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},
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source: 'url'
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},
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{
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name: 'Image Download Name',
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key: 'imageDownloadName',
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format: 'imageDownloadName',
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hints: {
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imageDownloadName: 1
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}
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}
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]
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};
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},
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form: [
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{
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key: 'imageLocation',
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name: 'Images url list (comma separated)',
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control: 'textarea',
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cssClass: 'l-inline',
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property: [
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"configuration",
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"imageLocation"
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]
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},
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{
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key: 'imageLoadDelayInMilliSeconds',
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name: 'Image load delay (milliseconds)',
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control: 'numberfield',
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required: true,
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cssClass: 'l-inline',
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property: [
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"configuration",
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"imageLoadDelayInMilliSeconds"
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]
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}
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]
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});
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const formatThumbnail = {
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format: function (url) {
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return `${url}?w=100&h=100`;
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}
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};
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openmct.telemetry.addFormat({
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key: 'thumbnail',
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...formatThumbnail
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});
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openmct.telemetry.addProvider(getRealtimeProvider());
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openmct.telemetry.addProvider(getHistoricalProvider());
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openmct.telemetry.addProvider(getLadProvider());
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};
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}
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function getCompassValues(min, max) {
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return min + Math.random() * (max - min);
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}
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function getImageSamples(configuration) {
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let imageSamples = DEFAULT_IMAGE_SAMPLES;
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if (configuration.imageLocation && configuration.imageLocation.length) {
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imageSamples = getImageUrlListFromConfig(configuration);
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}
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return imageSamples;
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}
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function getImageUrlListFromConfig(configuration) {
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return configuration.imageLocation.split(',');
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}
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function getImageLoadDelay(domainObject) {
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const imageLoadDelay = Math.trunc(Number(domainObject.configuration.imageLoadDelayInMilliSeconds));
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if (!imageLoadDelay) {
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openmctInstance.objects.mutate(domainObject, 'configuration.imageLoadDelayInMilliSeconds', DEFAULT_IMAGE_LOAD_DELAY_IN_MILISECONDS);
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return DEFAULT_IMAGE_LOAD_DELAY_IN_MILISECONDS;
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}
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if (imageLoadDelay < MIN_IMAGE_LOAD_DELAY_IN_MILISECONDS) {
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openmctInstance.objects.mutate(domainObject, 'configuration.imageLoadDelayInMilliSeconds', MIN_IMAGE_LOAD_DELAY_IN_MILISECONDS);
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return MIN_IMAGE_LOAD_DELAY_IN_MILISECONDS;
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}
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return imageLoadDelay;
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}
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function getRealtimeProvider() {
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return {
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supportsSubscribe: domainObject => domainObject.type === 'example.imagery',
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subscribe: (domainObject, callback) => {
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const delay = getImageLoadDelay(domainObject);
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const interval = setInterval(() => {
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const imageSamples = getImageSamples(domainObject.configuration);
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const datum = pointForTimestamp(Date.now(), domainObject.name, imageSamples, delay);
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callback(datum);
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}, delay);
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return () => {
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clearInterval(interval);
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};
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}
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};
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}
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function getHistoricalProvider() {
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return {
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supportsRequest: (domainObject, options) => {
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return domainObject.type === 'example.imagery'
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&& options.strategy !== 'latest';
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},
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request: (domainObject, options) => {
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const delay = getImageLoadDelay(domainObject);
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let start = options.start;
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const end = Math.min(options.end, Date.now());
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const data = [];
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while (start <= end && data.length < delay) {
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data.push(pointForTimestamp(start, domainObject.name, getImageSamples(domainObject.configuration), delay));
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start += delay;
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}
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return Promise.resolve(data);
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}
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};
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}
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function getLadProvider() {
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return {
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supportsRequest: (domainObject, options) => {
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return domainObject.type === 'example.imagery'
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&& options.strategy === 'latest';
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},
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request: (domainObject, options) => {
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const delay = getImageLoadDelay(domainObject);
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const datum = pointForTimestamp(Date.now(), domainObject.name, getImageSamples(domainObject.configuration), delay);
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return Promise.resolve([datum]);
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}
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};
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}
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function pointForTimestamp(timestamp, name, imageSamples, delay) {
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const url = imageSamples[Math.floor(timestamp / delay) % imageSamples.length];
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const urlItems = url.split('/');
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const imageDownloadName = `example.imagery.${urlItems[urlItems.length - 1]}`;
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const navCamTransformations = {
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"translateX": 0,
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"translateY": 18,
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"rotation": 0,
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"scale": 0.3,
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"cameraAngleOfView": 70
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};
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return {
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name,
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utc: Math.floor(timestamp / delay) * delay,
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local: Math.floor(timestamp / delay) * delay,
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url,
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sunOrientation: getCompassValues(0, 360),
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cameraAzimuth: getCompassValues(0, 360),
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heading: getCompassValues(0, 360),
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transformations: navCamTransformations,
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imageDownloadName
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};
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}
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