- add "moment": "^2.29.1" and "chartjs-adapter-moment": "^1.0.0",

- add core module for time.service.ts
- add interfaces for timespan.ts an dataset.ts
This commit is contained in:
Arno Kaimbacher 2021-09-28 16:26:53 +02:00
parent 5f657dc9e4
commit 4241bd2cb9
15 changed files with 706 additions and 57 deletions

View file

@ -222,3 +222,8 @@ CREATE src/app/app-router.service.ts (138 bytes)
=============================== chart.js ======================================
npm install --save chart.js
npm install --save moment
npm install moment chartjs-adapter-moment --save
import 'chartjs-adapter-moment';

17
package-lock.json generated
View file

@ -27,8 +27,10 @@
"babel-plugin-transform-typescript-metadata": "^0.3.2",
"bulma": "^0.9.3",
"chart.js": "^3.5.1",
"chartjs-adapter-moment": "^1.0.0",
"core-js": "^3.16.0",
"leaflet": "^1.7.1",
"moment": "^2.29.1",
"rxjs": "^7.3.0",
"zone.js": "^0.11.4"
},
@ -5012,6 +5014,15 @@
"resolved": "https://registry.npmjs.org/chart.js/-/chart.js-3.5.1.tgz",
"integrity": "sha512-m5kzt72I1WQ9LILwQC4syla/LD/N413RYv2Dx2nnTkRS9iv/ey1xLTt0DnPc/eWV4zI+BgEgDYBIzbQhZHc/PQ=="
},
"node_modules/chartjs-adapter-moment": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/chartjs-adapter-moment/-/chartjs-adapter-moment-1.0.0.tgz",
"integrity": "sha512-PqlerEvQcc5hZLQ/NQWgBxgVQ4TRdvkW3c/t+SUEQSj78ia3hgLkf2VZ2yGJtltNbEEFyYGm+cA6XXevodYvWA==",
"peerDependencies": {
"chart.js": "^3.0.0",
"moment": "^2.10.2"
}
},
"node_modules/chokidar": {
"version": "3.5.2",
"resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.2.tgz",
@ -22990,6 +23001,12 @@
"resolved": "https://registry.npmjs.org/chart.js/-/chart.js-3.5.1.tgz",
"integrity": "sha512-m5kzt72I1WQ9LILwQC4syla/LD/N413RYv2Dx2nnTkRS9iv/ey1xLTt0DnPc/eWV4zI+BgEgDYBIzbQhZHc/PQ=="
},
"chartjs-adapter-moment": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/chartjs-adapter-moment/-/chartjs-adapter-moment-1.0.0.tgz",
"integrity": "sha512-PqlerEvQcc5hZLQ/NQWgBxgVQ4TRdvkW3c/t+SUEQSj78ia3hgLkf2VZ2yGJtltNbEEFyYGm+cA6XXevodYvWA==",
"requires": {}
},
"chokidar": {
"version": "3.5.2",
"resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.2.tgz",

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@ -63,8 +63,10 @@
"babel-plugin-transform-typescript-metadata": "^0.3.2",
"bulma": "^0.9.3",
"chart.js": "^3.5.1",
"chartjs-adapter-moment": "^1.0.0",
"core-js": "^3.16.0",
"leaflet": "^1.7.1",
"moment": "^2.29.1",
"rxjs": "^7.3.0",
"zone.js": "^0.11.4"
}

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@ -10,6 +10,7 @@ import { MapViewComponent } from "./views/map-view/map-view.component";
import { ComponentsModule } from '../../src/common/components/components.module';
import { GraphjsModule } from '../../src/common/graphjs/graphjs.module';
// import { CoreModule } from '../../src/common/core/core.module';
import { HttpClientModule, HttpClient } from '@angular/common/http'; //for http requests
import { MarkerService } from './services/marker.service';
@ -32,6 +33,7 @@ import { DatasetByStationSelectorComponent } from './components/dataset-by-stati
import { MatListModule } from '@angular/material/list';
import {MatBadgeModule} from '@angular/material/badge';
import { TimeService } from '../common/core/time/time.service';
import { InternalIdHandler } from '../common/components/services/internal-id-handler.service';
@NgModule({
@ -43,7 +45,7 @@ import { InternalIdHandler } from '../common/components/services/internal-id-han
// imports: Other modules whose exported classes are needed by component templates declared in this NgModule.
imports: [BrowserModule, HttpClientModule, AppRoutingModule, ComponentsModule, GraphjsModule, BrowserAnimationsModule, MatDialogModule, MatListModule, MatBadgeModule],
providers: [
MarkerService, PopupService, HttpService, DatasetApiService, StationService, MessageService, MapService,DatasetService, InternalIdHandler
MarkerService, PopupService, HttpService, DatasetApiService, StationService, MessageService, MapService,DatasetService, InternalIdHandler, TimeService
// {
// provide: DatasetApiInterface,

View file

@ -13,7 +13,7 @@ export class AppRouterService {
}
public toDiagram() {
this.router.navigate(['diagram'])
this.router.navigate(['diagram']);
}
}

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@ -3,7 +3,7 @@
// https://github.com/52North/helgoland-toolbox/blob/495f75cadcc3e7232206db1cd5dd8bbf3a172c4b/libs/core/src/lib/api-communication/connectors/dataset-api-v3-connector/api-v3-interface.ts#L321
import { Injectable } from '@angular/core';
import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Observable } from 'rxjs';
import { Observable, Observer, forkJoin } from 'rxjs';
import { Phenomenon } from '../../shared/models/phenomenon';
import { Station } from '../../shared/models/station';
@ -15,12 +15,64 @@ import { GeomonPlatform } from '../../shared/models/platform';
import { Dataset, GeomonTimeseries } from '../../shared/models/dataset';
import { deserialize } from 'class-transformer';
import { map } from 'rxjs/operators';
import { map } from 'rxjs/operators';
import { InternalIdHandler } from '../../common/components/services/internal-id-handler.service';
import moment from "moment";
import { Timespan } from '../../shared/models/timespan';
import { GeomonDataset } from '../../shared/models/dataset';
import { GeomonTimeseriesData, Data, HelgolandDataFilter } from '../../shared/models/dataset';
// @Injectable({
// providedIn: 'root'
// })
export interface ParameterFilter {
service?: string;
category?: string;
offering?: string;
phenomenon?: string;
procedure?: string;
feature?: string;
valueTypes?: string;
platformTypes?: string;
expanded?: boolean;
lang?: string;
[key: string]: any;
}
export interface ApiV3DatasetDataFilter {
timespan?: string;
generalize?: boolean;
format?: string;
unixTime?: boolean;
expanded?: boolean;
}
type TimeValueTuple = [number, number];
class UriParameterCoder {
public encodeKey(key: string): string {
return encodeURIComponent(key);
}
public encodeValue(value: string): string {
return encodeURIComponent(value);
}
public decodeKey(key: string): string {
return key;
}
public decodeValue(value: string): string {
return value;
}
}
@Injectable()
export class DatasetApiService {
@ -70,20 +122,157 @@ export class DatasetApiService {
): Observable<GeomonPlatform> {
// const url = this.createRequestUrl(apiUrl, 'platforms', id);
// return this.requestApi<GeomonPlatform>(url, params, options);
return this.getFeature(id, apiUrl,params, options).pipe(map(res => this.createGeomonPlatform(res)));
return this.getFeature(id, apiUrl, params, options).pipe(map(res => this.createGeomonPlatform(res)));
}
public getDataset(id: string, apiUrl: string, params?: any, options?: HttpRequestOptions): Observable<GeomonTimeseries> {
const url = this.createRequestUrl(apiUrl, 'datasets', id);
return this.requestApi<GeomonTimeseries>(url, params, options)
.pipe(
map((res) => this.prepareDataset(res, apiUrl))
.pipe(
map((res) => this.prepareDataset(res, apiUrl))
);
}
getDatasetData(dataset: GeomonDataset, timespan: Timespan, filter: HelgolandDataFilter): Observable<GeomonTimeseriesData> {
const maxTimeExtent = moment.duration(1, 'year').asMilliseconds();//31536000000
const params: ApiV3DatasetDataFilter = { format: 'flot' };
if (filter.expanded !== undefined) { params.expanded = filter.expanded };
if (filter.generalize !== undefined) { params.generalize = filter.generalize };
// if greater than one year
if ((timespan.to - timespan.from) > maxTimeExtent) {
const requests: Array<Observable<GeomonTimeseriesData>> = [];
let start = moment(timespan.from).startOf('year');
let end = moment(timespan.from).endOf('year');
while (start.isBefore(moment(timespan.to))) {
const chunkSpan = new Timespan(start.unix() * 1000, end.unix() * 1000);
params.timespan = this.createRequestTimespan(chunkSpan);
requests.push(
this.getApiData<TimeValueTuple>(dataset.id, dataset.url, params)
.pipe(map(res => {
return this.createTimeseriesData(res);
// return res;
}))
);
start = end.add(1, 'millisecond');
end = moment(start).endOf('year');
}
return forkJoin(requests).pipe(map((e) => {
const mergedResult = e.reduce((previous, current) => {
const next: GeomonTimeseriesData = new GeomonTimeseriesData(previous.values.concat(current.values));
if (previous.valueBeforeTimespan) {
next.valueBeforeTimespan = previous.valueBeforeTimespan;
}
if (current.valueAfterTimespan) {
next.valueAfterTimespan = current.valueAfterTimespan;
}
for (const key in previous.referenceValues) {
if (previous.referenceValues.hasOwnProperty(key)) {
next.referenceValues[key] = {
values: previous.referenceValues[key].values.concat(current.referenceValues[key].values)
};
if (previous.referenceValues[key].valueBeforeTimespan) {
next.referenceValues[key].valueBeforeTimespan = previous.referenceValues[key].valueBeforeTimespan;
}
if (current.referenceValues[key].valueAfterTimespan) {
next.referenceValues[key].valueAfterTimespan = current.referenceValues[key].valueAfterTimespan;
}
}
}
return next;
});
if (mergedResult.values && mergedResult.values.length > 0) {
// cut first
const fromIdx = mergedResult.values.findIndex(el => el[0] >= timespan.from);
mergedResult.values = mergedResult.values.slice(fromIdx);
// cut last
const toIdx = mergedResult.values.findIndex(el => el[0] >= timespan.to);
if (toIdx >= 0) { mergedResult.values = mergedResult.values.slice(0, toIdx + 1); }
}
return mergedResult;
}));
}
else {
params.timespan = this.createRequestTimespan(timespan);
if (filter.expanded !== undefined) { params.expanded = filter.expanded };
return this.getApiData<TimeValueTuple>(dataset.id, dataset.url, params)
.pipe(map(res => this.createTimeseriesData(res)));
}
}
protected createTimeseriesData(res: Data<TimeValueTuple>): GeomonTimeseriesData {
const data = new GeomonTimeseriesData(res.values);
data.referenceValues = res.referenceValues ? res.referenceValues : {};
if (res.valueBeforeTimespan) {
data.valueBeforeTimespan = res.valueBeforeTimespan;
}
if (res.valueAfterTimespan) {
data.valueAfterTimespan = res.valueAfterTimespan;
}
return data;
}
public getApiData<T>(id: string, apiUrl: string, params?: ApiV3DatasetDataFilter): Observable<Data<T>> {
const url = this.createRequestUrl(apiUrl, 'datasets', `${id}/observations`);
return this.requestApi<Data<T>>(url, this.prepareParams(params)).pipe(
map(res => {
// if (params.expanded) { res = res[id]; }
return res;
})
);
}
protected prepareParams(params: any): HttpParams {
let httpParams = new HttpParams({ encoder: new UriParameterCoder() });
if (params) {
Object.getOwnPropertyNames(params).forEach((key) => {
if (params[key] instanceof Array) {
httpParams = httpParams.set(key, params[key].join(','));
} else {
httpParams = httpParams.set(key, params[key]);
}
});
}
return httpParams;
}
// getDatasetData(dataset: GeomonDataset, timespan: Timespan, filter: HelgolandDataFilter): Observable<HelgolandData> {
// const dataFilter = this.createDataFilter(filter);
// dataFilter.format = 'flot';
// return this.api.getTsData<TimeValueTuple>(dataset.id, dataset.url, timespan, dataFilter).pipe(map(res => {
// const data = new HelgolandTimeseriesData(res.values);
// data.referenceValues = res.referenceValues ? res.referenceValues : {};
// if (res.valueBeforeTimespan) { data.valueBeforeTimespan = res.valueBeforeTimespan; }
// if (res.valueAfterTimespan) { data.valueAfterTimespan = res.valueAfterTimespan; }
// return data;
// }));
// }
// public getTsData<T>(
// id: string,
// apiUrl: string,
// timespan: Timespan,
// params: DataParameterFilter = {},
// options: HttpRequestOptions
// ): Observable<Data<T>> {
// const url = this.createRequestUrl(apiUrl, 'timeseries', id) + '/getData';
// params.timespan = this.createRequestTimespan(timespan);
// return this.requestApi<Data<T>>(url, params, options).pipe(
// map((res: any) => {
// if (params.expanded) { res = res[id]; }
// return res;
// }));
// }
//#region Helper method
private prepareDataset(datasetObj:GeomonTimeseries, apiUrl: string) {
private prepareDataset(datasetObj: GeomonTimeseries, apiUrl: string) {
let dataset = deserialize<GeomonTimeseries>(GeomonTimeseries, JSON.stringify(datasetObj));
dataset.url = apiUrl;
this.internalDatasetId.generateInternalId(dataset);
@ -97,12 +286,12 @@ export class DatasetApiService {
protected createGeomonPlatform(feature: Station): GeomonPlatform {
const datasetIds = [];
for (const key in feature.properties.datasets) {
if (feature.properties.datasets.hasOwnProperty(key)) {
datasetIds.push(key);
}
if (feature.properties.datasets.hasOwnProperty(key)) {
datasetIds.push(key);
}
}
return new GeomonPlatform(feature.id, feature.properties.label, datasetIds, feature.geometry);
}
}
protected createRequestUrl(apiUrl: string, endpoint: string, id?: string) {
// TODO Check whether apiUrl ends with slash
@ -111,6 +300,12 @@ export class DatasetApiService {
return requestUrl;
}
private requestApiTextedPost(url: string, params: ParameterFilter = {}, options: HttpRequestOptions = {}): Observable<Object> {
return this.httpService.client().post(url, params, {
responseType: 'json'
});
}
protected requestApi<T>(url: string, params: HttpParams = new HttpParams(), options: HttpRequestOptions = {}
): Observable<T> {
return this.httpService.client(options).get<T>(url,
@ -121,6 +316,12 @@ export class DatasetApiService {
);
}
protected createRequestTimespan(timespan: Timespan): string {
return encodeURI(moment(timespan.from).format() + '/' + moment(timespan.to).format());
}
protected createBasicAuthHeader(token: string): HttpHeaders {
const headers = new HttpHeaders();
if (token) { return headers.set('Authorization', token); }

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@ -1,5 +1,14 @@
import { Injectable } from '@angular/core';
import { EventEmitter } from '@angular/core';
import { Timespan } from '../../shared/models/timespan';
import * as moment from "moment";
const TIMESERIES_OPTIONS_CACHE_PARAM = 'timeseriesOptions';
const TIMESERIES_IDS_CACHE_PARAM = 'timeseriesIds';
const TIME_CACHE_PARAM = 'timeseriesTime';
// https://github.com/52North/helgoland-toolbox/blob/fe6af1b9df0e5d78eeec236e4690aeb7dc92119b/apps/helgoland/src/app/services/timeseries-service.service.ts#L22
import { TimeService } from '../../common/core/time/time.service';
@Injectable()
export class DatasetService<T> {
@ -7,8 +16,25 @@ export class DatasetService<T> {
public datasetIds: string[] = [];
public datasetService: Map<string, T> = new Map();
private _timespan: Timespan;
public datasetIdsChanged: EventEmitter<string[]> = new EventEmitter();
constructor(private timeService: TimeService) {
this.initTimespan();
}
public get timespan(): Timespan {
return this._timespan;
}
public set timespan(v: Timespan) {
this._timespan = v;
// this.timeSrvc.saveTimespan(TIME_CACHE_PARAM, this._timespan);
}
/**
* Adds the dataset to the selection
*
@ -67,4 +93,12 @@ export class DatasetService<T> {
this.datasetService.set(internalId, options);
// this.saveState();
}
private initTimespan() {
if (!this._timespan) {
this._timespan = new Timespan(1323239694000, 1323844494000);
//this.timeService.createByDurationWithEnd(moment.duration(1, 'days'), new Date(2011, 9), 'day');
}
}
}

View file

@ -1,3 +1,4 @@
<!-- <h2>Bar Chart</h2>
<canvas id="line-chart" width="800" height="450"></canvas> -->
<geomon-timeseries-chart></geomon-timeseries-chart>
<geomon-timeseries-chart [datasetOptions]="datasetOptions"
[datasetIds]="datasetIds" [timeInterval]="datasetService.timespan"></geomon-timeseries-chart>

View file

@ -0,0 +1,19 @@
import { CommonModule } from '@angular/common';
import { NgModule } from '@angular/core';
import { DatasetApiService } from '../../app/services/dataset-api.service';
@NgModule({
imports: [
CommonModule
],
declarations: [
],
exports: [
],
providers: [
]
})
export class CoreModule { }

View file

@ -0,0 +1,52 @@
import { Injectable } from '@angular/core';
import { Timespan, TimeInterval, BufferedTime } from '../../../shared/models/timespan';
import moment from 'moment';
// import 'moment-duration-format';
@Injectable()
export class TimeService {
constructor() { }
public getBufferedTimespan(timespan: Timespan, factor: number, maxBufferInMs?: number): Timespan {
const durationMillis = this.getDuration(timespan).asMilliseconds();
let buffer = durationMillis * factor;
if (maxBufferInMs && buffer > maxBufferInMs) {
buffer = maxBufferInMs;
}
const from = timespan.from - buffer;
const to = timespan.to + buffer;
return new Timespan(from, to);
}
private getDuration(timespan: Timespan): moment.Duration {
const from = moment(timespan.from);
const to = moment(timespan.to);
return moment.duration(to.diff(from));
}
public createByDurationWithEnd(d: moment.Duration, end: number | Date, endOf?: moment.unitOfTime.StartOf): Timespan {
const mEnd = moment(end);
if (endOf) {
mEnd.endOf(endOf);
}
const mStart = moment(mEnd).subtract(d);
return new Timespan(mStart.toDate(), mEnd.toDate());
}
public createTimespanOfInterval(timeInterval: TimeInterval): Timespan {
if(timeInterval instanceof BufferedTime) {
const d = moment.duration(timeInterval.bufferInterval / 2);
const from = moment(timeInterval.timestamp).subtract(d).unix() * 1000;
const to = moment(timeInterval.timestamp).add(d).unix() * 1000;
return new Timespan(from, to);
} else {
return timeInterval as Timespan;
}
}
}

View file

@ -1,3 +1,3 @@
<div #geomon_timeseries>
<canvas id="line-chart" width="800" height="450"></canvas>
<div class="d3" #geomon_timeseries>
<canvas id="line-chart" width="100%" height="80%"></canvas>
</div>

View file

@ -1,61 +1,285 @@
import { Component, OnInit, ViewChild, ElementRef } from '@angular/core';
import { Input, Component, AfterViewInit, ViewChild, ElementRef, SimpleChanges } from '@angular/core';
// import * as d3 from 'd3';
import { Chart, registerables } from 'chart.js';
import { Chart, LogarithmicScale, registerables } from 'chart.js';
import { GeomonTimeseries, DataConst, GeomonTimeseriesData } from '../../../shared/models/dataset';
import { DatasetApiService } from '../../../app/services/dataset-api.service';
import { DatasetService } from '../../../app/services/dataset.service';
import { Timespan } from '../../../shared/models/timespan';
import { TimeService } from '../../core/time/time.service';
import moment from 'moment';
// import 'moment-duration-format';
import { TimeValueTuple, Data } from '../../../shared/models/dataset';
import 'chartjs-adapter-moment';
import { MAT_SELECTION_LIST_VALUE_ACCESSOR } from '@angular/material/list';
@Component({
selector: 'geomon-timeseries-chart',
templateUrl: './geomon-timeseries-chart.component.html',
styleUrls: ['./geomon-timeseries-chart.component.scss']
})
export class GeomonTimeseriesChartComponent implements OnInit {
export class GeomonTimeseriesChartComponent implements AfterViewInit {
@ViewChild('geomon_timeseries', { static: true })
public d3Elem: ElementRef;
// @ViewChild('geomon_timeseries', { static: true })
// public chartElem: ElementRef;
@ViewChild('geomon_timeseries') public chartElem: ElementRef;
lineChart: Chart;
/**
* The corresponding dataset options.
*/
@Input()
public datasetOptions: Map<string, GeomonTimeseries>;
/**
* List of presented dataset ids.
*/
@Input()
public datasetIds: string[] = [];
/**
* The time interval in which the data should presented.
*/
@Input()
public timeInterval: Timespan;
protected timespan: Timespan;
// data types
protected datasetMap: Map<string, DataConst> = new Map();
protected listOfUoms: string[] = [];
// private loadingData: Set<string> = new Set();
private width: number;
private canvas: HTMLCanvasElement;
private margin = {
top: 10,
right: 10,
bottom: 40,
left: 10
};
constructor(
protected datasetApiService: DatasetApiService,
protected timeService: TimeService,
public datasetService: DatasetService<GeomonTimeseries>,
) { }
ngAfterViewInit(): void { // this.createSvg();
this.canvas = document.getElementById("line-chart") as HTMLCanvasElement;
constructor() { }
ngOnInit(): void {
// this.createSvg();
// this.drawBars(this.data);
Chart.register(...registerables);
this.drawBars();
this.initChart();
for (let i = 0; i < this.datasetIds.length; i++) {
let datasetId = this.datasetIds[i];
let dataset = this.datasetOptions.get(datasetId);
this.addDataset(dataset.id, 'https://geomon.geologie.ac.at/52n-sos-webapp/api/');
}
// let firstDatasetId = this.datasetIds[0];
// let dataset = this.datasetOptions.get(firstDatasetId);
// this.addDataset(dataset.id, 'https://geomon.geologie.ac.at/52n-sos-webapp/api/');
}
private drawBars(): void {
let lineChart = document.getElementById("line-chart") as HTMLCanvasElement;
new Chart(lineChart, {
public ngOnChanges(changes: SimpleChanges): void {
if (changes.timeInterval && this.timeInterval) {
this.timespan = this.timeService.createTimespanOfInterval(this.timeInterval);
// this.timeIntervalChanges();
}
// if (changes.reloadForDatasets && this.reloadForDatasets && this.reloadDataForDatasets.length > 0) {
// this.reloadDataForDatasets(this.reloadForDatasets);
// }
}
public getDataset(internalId: string) {
return this.datasetMap.get(internalId);
}
protected addDataset(id: string, url: string): void {
// this.servicesConnector.getDataset({ id, url }, { locale: this.translateService.currentLang, type: DatasetType.Timeseries }).subscribe(
// res => this.loadAddedDataset(res),
// error => this.errorHandler.handleDatasetLoadError(error)
// );
this.datasetApiService.getDataset(id, url).subscribe({
next: (res: GeomonTimeseries) => this.loadAddedDataset(res),
error: (err: any) => console.error('Observer got an error: ' + err),
complete: () => console.log('HTTP request completed.')
// error => this.errorHandler.handleDatasetLoadError(error)
});
}
private loadAddedDataset(dataset: GeomonTimeseries): void {
this.datasetMap.set(dataset.internalId, dataset);
this.loadDatasetData(dataset, false);
}
// load data of dataset
private loadDatasetData(dataset: GeomonTimeseries, fprce: boolean): void {
// const datasetOptions = this.datasetOptions.get(dataset.internalId);
// https://github.com/52North/helgoland-toolbox/blob/9ff9a42b34cd3deb181d56d76d48eba7c101554e/libs/core/src/lib/api-communication/connectors/dataset-api-v3-connector/dataset-api-v3-connector.ts#L270
const buffer = this.timeService.getBufferedTimespan(this.timespan, 5, moment.duration(1, 'day').asMilliseconds());
this.datasetApiService.getDatasetData(dataset, buffer, {})
.subscribe({
next: (result: GeomonTimeseriesData) => {
this.prepareData(dataset, result);
// this.onCompleteLoadingData(dataset);
let test = result;
},
error: (error) => {
// this.errorHandler.handleDataLoadError(error, dataset);
// this.onCompleteLoadingData(dataset);
}
});
}
/**
* Function to prepare each dataset for the graph and adding it to an array of datasets.
* @param dataset {IDataset} Object of the whole dataset
*/
private prepareData(dataset: GeomonTimeseries, rawdata: GeomonTimeseriesData): void {
if (rawdata instanceof GeomonTimeseriesData) {
// add surrounding entries to the set
if (rawdata.valueBeforeTimespan) { rawdata.values.unshift(rawdata.valueBeforeTimespan); }
if (rawdata.valueAfterTimespan) { rawdata.values.push(rawdata.valueAfterTimespan); }
const data = this.generalizeData(rawdata, this.width, this.timespan);
// this.datasetMap.get(dataset.internalId).data = data;
this.addData(this.lineChart, dataset, rawdata);
}
}
public generalizeData(data: GeomonTimeseriesData, imageWidth: number, timespan: Timespan): Data<TimeValueTuple> {
if (data.values.length > imageWidth && data.values.length > 0) {
const duration = timespan.to - timespan.from;
const dataduration = data.values[data.values.length - 1][0] - data.values[0][0];
const factor = duration / dataduration;
const realWidth = imageWidth / factor;
const modulo = 1 / (data.values.length / realWidth);
const generalizedData = {
values: data.values.filter((v, i) => i % Math.round(modulo) === 0),
referenceValues: data.referenceValues
};
console.log(`reduce from ${data.values.length} to ${generalizedData.values.length}`);
return generalizedData;
}
return data;
}
private addData(chart: Chart, dataset: GeomonTimeseries, data: GeomonTimeseriesData): void {
let labels = data.values.map(function (label) {
let date = moment(label[0]).format("YYYY-MM-DD HH:mm");
return date;
});
let values = data.values.map(function (value) {
return value[1];
});
chart.data.labels = labels;
// chart.data.datasets.forEach((dataset) => {
// dataset.data.push(data);
// });
let letters = '0123456789ABCDEF'.split('');
let color = '#';
for (let i = 0; i < 6; i++) {
color += letters[Math.floor(Math.random() * 16)];
}
var newDataset = {
label: dataset.label,
// backgroundColor: 'rgba(99, 255, 132, 0.2)',
backgroundColor: color,
// borderColor: 'rgba(99, 255, 132, 1)',
borderWidth: 1,
data: values,
}
// You add the newly created dataset to the list of `data`
chart.data.datasets.push(newDataset);
chart.update();
this.width = this.calculateWidth();
}
private initChart(): void {
this.lineChart = new Chart(this.canvas, {
type: 'line',
data: {
labels: [1500, 1600, 1700, 1750, 1800, 1850, 1900, 1950, 1999, 2050],
datasets: [{
data: [86, 114, 106, 106, 107, 111, 133, 221, 783, 2478],
label: "Africa",
borderColor: "#3e95cd",
fill: false
}, {
data: [282, 350, 411, 502, 635, 809, 947, 1402, 3700, 5267],
label: "Asia",
borderColor: "#8e5ea2",
fill: false
}, {
data: [168, 170, 178, 190, 203, 276, 408, 547, 675, 734],
label: "Europe",
borderColor: "#3cba9f",
fill: false
}, {
data: [40, 20, 10, 16, 24, 38, 74, 167, 508, 784],
label: "Latin America",
borderColor: "#e8c3b9",
fill: false
}, {
data: [6, 3, 2, 2, 7, 26, 82, 172, 312, 433],
label: "North America",
borderColor: "#c45850",
fill: false
}
// labels: [1500, 1600, 1700, 1750, 1800, 1850, 1900, 1950, 1999, 2050],
labels: [],
datasets: [
// {
// data: [86, 114, 106, 106, 107, 111, 133, 221, 783, 2478],
// label: "Africa",
// borderColor: "#3e95cd",
// fill: false
// }, {
// data: [282, 350, 411, 502, 635, 809, 947, 1402, 3700, 5267],
// label: "Asia",
// borderColor: "#8e5ea2",
// fill: false
// }, {
// data: [168, 170, 178, 190, 203, 276, 408, 547, 675, 734],
// label: "Europe",
// borderColor: "#3cba9f",
// fill: false
// }, {
// data: [40, 20, 10, 16, 24, 38, 74, 167, 508, 784],
// label: "Latin America",
// borderColor: "#e8c3b9",
// fill: false
// }, {
// data: [6, 3, 2, 2, 7, 26, 82, 172, 312, 433],
// label: "North America",
// borderColor: "#c45850",
// fill: false
// }
]
},
options: {
scales: {
y: {
suggestedMin: 0, // minimum will be 0, unless there is a lower value.
// OR //
beginAtZero: true // minimum value will be 0.
},
x: {
type: 'time',
time: {
unit: 'minute',
displayFormats: {
minute: "DD/MM HH:mm",
hour: "DD/MM HH:mm",
day: "dd/MM",
week: "dd/MM",
month: "MMMM yyyy",
quarter: 'MMMM yyyy',
year: "yyyy",
}
},
// ticks: {
// labelOffset: 10
// }
}
},
}
// options: {
// title: {
// display: true,
@ -63,6 +287,7 @@ export class GeomonTimeseriesChartComponent implements OnInit {
// }
// }
});
this.width = this.calculateWidth() - 20; // add buffer to the left to garantee visualization of last date (tick x-axis)
}
/**
@ -80,4 +305,13 @@ export class GeomonTimeseriesChartComponent implements OnInit {
.toString(16)
.substring(1);
}
/**
* Function that returns the width of the graph diagram.
*/
private calculateWidth(): number {
return this.canvas.width - this.margin.left - this.margin.right;
}
}

View file

@ -4,7 +4,9 @@ import { NgModule } from '@angular/core';
import { GeomonTimeseriesChartComponent } from './geomon-timeseries-chart/geomon-timeseries-chart.component';
// import { ZoomControlComponent } from './zoom-control/zoom.component';
import { DatasetApiService } from '../../app/services/dataset-api.service';
import { TimeService } from '../core/time/time.service';
@NgModule({
@ -19,7 +21,7 @@ import { GeomonTimeseriesChartComponent } from './geomon-timeseries-chart/geomon
],
providers: [
DatasetApiService , TimeService
]
})
export class GraphjsModule { }

View file

@ -94,3 +94,53 @@ export interface RenderingHints {
color: string;
};
}
export interface DataConst extends GeomonTimeseries {
data?: Data<TimeValueTuple>;
}
// export class TimeseriesData {
// public id: string;
// public url: string;
// public data: FirstLastValue[];
// }
export interface IDataEntry { }
export interface Data<T extends IDataEntry> {
values: T[];
referenceValues: ReferenceValues<T>;
valueBeforeTimespan?: T;
valueAfterTimespan?: T;
}
export class ReferenceValues<T extends IDataEntry> {
[key: string]: {
values: T[];
valueBeforeTimespan?: T;
valueAfterTimespan?: T;
};
}
export type TimeValueTuple = [number, number];
export interface GeomonData { }
export class GeomonTimeseriesData implements GeomonData {
referenceValues: ReferenceValues<TimeValueTuple> = {};
valueBeforeTimespan: TimeValueTuple;
valueAfterTimespan: TimeValueTuple;
constructor(
public values: TimeValueTuple[],
) { }
}
export interface HelgolandDataFilter {
expanded?: boolean;
generalize?: boolean;
}

View file

@ -0,0 +1,30 @@
export abstract class TimeInterval {
}
export class Timespan extends TimeInterval{
public from: number;
public to: number;
constructor(from: number | Date, to?: number | Date) {
super();
this.from = from instanceof Date ? from.valueOf() : from;
this.to = to ? (to instanceof Date ? to.valueOf() : to) : this.from;
}
}
export class BufferedTime extends TimeInterval {
public timestamp: Date;
public bufferInterval: number;
constructor(
timestamp: Date,
bufferInterval: number
) {
super();
this.timestamp = timestamp;
this.bufferInterval = bufferInterval;
}
}