mirror of
https://github.com/cds-astro/aladin-lite.git
synced 2025-12-12 07:40:26 -08:00
2070 lines
76 KiB
JavaScript
2070 lines
76 KiB
JavaScript
// Copyright 2013 - UDS/CNRS
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// The Aladin Lite program is distributed under the terms
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// of the GNU General Public License version 3.
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//
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// This file is part of Aladin Lite.
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//
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// Aladin Lite is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 3 of the License.
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//
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// Aladin Lite is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// The GNU General Public License is available in COPYING file
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// along with Aladin Lite.
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//
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/******************************************************************************
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* Aladin Lite project
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*
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* File View.js
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*
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* Author: Thomas Boch[CDS]
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*
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*****************************************************************************/
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import { Aladin } from "./Aladin.js";
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import A from "./A.js";
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import { HealpixGrid } from "./HealpixGrid.js";
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import { ProjectionEnum } from "./ProjectionEnum.js";
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import { Utils } from "./Utils";
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import { GenericPointer } from "./GenericPointer.js";
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import { Stats } from "./libs/Stats.js";
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import { Circle } from "./Circle.js";
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import { Ellipse } from "./Ellipse.js";
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import { Polyline } from "./Polyline.js";
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import { CooFrameEnum } from "./CooFrameEnum.js";
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import { requestAnimFrame } from "./libs/RequestAnimationFrame.js";
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import { WebGLCtx } from "./WebGL.js";
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import { ALEvent } from "./events/ALEvent.js";
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import { ColorCfg } from "./ColorCfg.js";
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import { Footprint } from "./Footprint.js";
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import { Selector } from "./Selector.js";
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import { ObsCore } from "./vo/ObsCore.js";
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import { DefaultActionsForContextMenu } from "./DefaultActionsForContextMenu.js";
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import { Layout } from "./gui/Layout.js";
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import { SAMPActionButton } from "./gui/Button/SAMP.js";
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import { ImageSurvey } from "./ImageSurvey.js";
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import { ImageFITS } from "./ImageFITS.js";
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export let View = (function () {
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/** Constructor */
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function View(aladin) {
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this.aladin = aladin;
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// Add a reference to the WebGL API
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this.options = aladin.options;
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this.aladinDiv = this.aladin.aladinDiv;
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this.createCanvases();
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let self = this;
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self.redrawClbk = this.redraw.bind(this);
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// Init the WebGL context
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// At this point, the view has been created so the image canvas too
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try {
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// Start our Rust application. You can find `WebClient` in `src/lib.rs`
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// The Rust part should also create a new WebGL2 or WebGL1 context depending on the WebGL2 brower support.
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const webglCtx = new WebGLCtx(Aladin.wasmLibs.core, this.aladinDiv);
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this.aladin.wasm = webglCtx.webclient;
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this.wasm = this.aladin.wasm;
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ALEvent.AL_USE_WASM.listenedBy(this.aladinDiv, function (e) {
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let callback = e.detail.callback;
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callback(self.wasm);
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});
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} catch (e) {
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// For browsers not supporting WebGL2:
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// 1. Print the original exception message in the console
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//console.error(e)
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// 2. Add a more explicite message to the end user
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console.error("Problem initializing Aladin Lite. Please contact the support by contacting Matthieu Baumann (baumannmatthieu0@gmail.com) or Thomas Boch (thomas.boch@astro.unistra.fr). You can also open an issue on the Aladin Lite github repository here: https://github.com/cds-astro/aladin-lite. Message error:" + e)
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}
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// Attach the drag and drop events to the view
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this.aladinDiv.ondrop = (event) => {
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const files = Utils.getDroppedFilesHandler(event);
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files.forEach((file) => {
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const url = URL.createObjectURL(file);
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// Consider other cases
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try {
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const image = self.aladin.createImageFITS(
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url,
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file.name,
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undefined,
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(ra, dec, fov, _) => {
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// Center the view around the new fits object
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aladin.gotoRaDec(ra, dec);
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aladin.setFoV(fov * 1.1);
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},
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undefined
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);
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self.setOverlayImageLayer(image, file.name)
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} catch(e) {
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let moc = A.MOCFromURL(url);
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self.aladin.addMOC(moc);
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console.error("Only valid fits files supported (i.e. containig a WCS)", e)
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throw e;
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}
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})
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};
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this.aladinDiv.ondragover = Utils.dragOverHandler;
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this.mustClearCatalog = true;
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this.mode = View.PAN;
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this.minFOV = this.maxFOV = null; // by default, no restriction
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this.healpixGrid = new HealpixGrid();
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this.then = Date.now();
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var lon, lat;
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lon = lat = 0;
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// FoV init settings
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const si = 500000.0;
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const alpha = 40.0;
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let initialFov = this.options.fov || 180.0;
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this.pinchZoomParameters = {
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isPinching: false, // true if a pinch zoom is ongoing
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initialFov: undefined,
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initialDistance: undefined,
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initialAccDelta: Math.pow(si / initialFov, 1.0 / alpha)
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};
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// Projection definition
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const projName = (this.options && this.options.projection) || "SIN";
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this.setProjection(projName)
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// Then set the zoom properly once the projection is defined
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this.setZoom(initialFov);
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// Target position settings
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this.viewCenter = { lon, lat }; // position of center of view
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// Coo frame setting
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const cooFrame = CooFrameEnum.fromString(this.options.cooFrame, CooFrameEnum.J2000);
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this.changeFrame(cooFrame);
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this.selector = new Selector(this);
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// current reference image survey displayed
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this.imageLayers = new Map();
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this.overlayLayers = [];
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// current catalogs displayed
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this.catalogs = [];
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// a dedicated catalog for the popup
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var c = document.createElement('canvas');
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c.width = c.height = 24;
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var ctx = c.getContext('2d');
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ctx.lineWidth = 6.0;
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ctx.beginPath();
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ctx.strokeStyle = '#eee';
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ctx.arc(12, 12, 8, 0, 2 * Math.PI, true);
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ctx.stroke();
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ctx.lineWidth = 3.0;
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ctx.beginPath();
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ctx.strokeStyle = '#c38';
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ctx.arc(12, 12, 8, 0, 2 * Math.PI, true);
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ctx.stroke();
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this.catalogForPopup = A.catalog({ shape: c, sourceSize: 24 });
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this.catalogForPopup.hide();
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this.catalogForPopup.setView(this);
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this.overlayForPopup = A.graphicOverlay({color: '#ee2345', lineWidth: 3});
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this.overlayForPopup.hide();
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this.overlayForPopup.setView(this);
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// overlays (footprints for instance)
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this.overlays = [];
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// MOCs
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this.mocs = [];
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// reference to all overlay layers (= catalogs + overlays + mocs)
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this.allOverlayLayers = []
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this.empty = true;
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this.promises = [];
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this.firstHiPS = true;
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this.curNorder = 1;
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this.realNorder = 1;
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this.imageLayersBeingQueried = new Map();
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// some variables for mouse handling
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this.dragging = false;
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this.dragCoo = null;
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this.rightclickx = null;
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this.rightclicky = null;
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this.selectedLayer = 'base';
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this.needRedraw = true;
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// two-fingers rotation
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this.fingersRotationParameters = {
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initialViewAngleFromCenter: undefined,
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initialFingerAngle: undefined,
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rotationInitiated: false
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}
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this.fadingLatestUpdate = null;
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this.dateRequestRedraw = null;
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init(this);
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// listen to window resize and reshape canvases
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this.resizeTimer = null;
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/*if ('ontouchstart' in window) {
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Utils.on(document, 'orientationchange', (e) => {
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self.fixLayoutDimensions();
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})
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} else {*/
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let resizeLayout = () => {
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self.fixLayoutDimensions();
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}
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let doit;
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this.resizeObserver = new ResizeObserver(() => {
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//clearTimeout(doit);
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//doit = setTimeout(resizeLayout, 100);
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resizeLayout();
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});
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self.resizeObserver.observe(this.aladinDiv)
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this.throttledPositionChanged = Utils.throttle(
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() => {
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var posChangedFn = this.aladin.callbacksByEventName && this.aladin.callbacksByEventName['positionChanged'];
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if (typeof posChangedFn === 'function') {
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var pos = this.aladin.pix2world(this.width / 2, this.height / 2);
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if (pos !== undefined) {
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posChangedFn({
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ra: pos[0],
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dec: pos[1],
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dragging: true
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});
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}
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}
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},
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View.CALLBACKS_THROTTLE_TIME_MS,
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);
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this.throttledZoomChanged = Utils.throttle(
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() => {
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const fov = this.fov;
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// trigger callback only if FoV (zoom) has changed !
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if (fov !== this.oldFov) {
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const fovChangedFn = this.aladin.callbacksByEventName['zoomChanged'];
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(typeof fovChangedFn === 'function') && fovChangedFn(fov);
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// finally, save fov value
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this.oldFov = fov;
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}
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},
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View.CALLBACKS_THROTTLE_TIME_MS,
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);
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self.fixLayoutDimensions();
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self.redraw()
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// in some contexts (Jupyter notebook for instance), the parent div changes little time after Aladin Lite creation
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// this results in canvas dimension to be incorrect.
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// The following line tries to fix this issue
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/*setTimeout(function () {
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var computedWidth = $(self.aladinDiv).width();
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var computedHeight = $(self.aladinDiv).height();
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if (self.width !== computedWidth || self.height === computedHeight) {
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self.fixLayoutDimensions();
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// As the WebGL backend has been resized correctly by
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// the previous call, we can get the zoom factor from it
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self.setZoom(self.fov); // needed to force recomputation of displayed FoV
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}
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self.requestRedraw();
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}, 1000);*/
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};
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// different available modes
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View.PAN = 0;
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View.SELECT = 1;
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View.TOOL_SIMBAD_POINTER = 2;
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// TODO: should be put as an option at layer level
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View.DRAW_SOURCES_WHILE_DRAGGING = true;
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View.DRAW_MOCS_WHILE_DRAGGING = true;
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View.CALLBACKS_THROTTLE_TIME_MS = 100; // minimum time between two consecutive callback calls
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// (re)create needed canvases
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View.prototype.createCanvases = function () {
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let imageCanvas = this.aladinDiv.querySelector('.aladin-imageCanvas');
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if (imageCanvas) {
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imageCanvas.remove();
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}
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let gridCanvas = this.aladinDiv.querySelector('.aladin-gridCanvas');
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if (gridCanvas) {
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gridCanvas.remove();
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}
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let catalogCanvas = this.aladinDiv.querySelector('.aladin-catalogCanvas')
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if (catalogCanvas) {
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catalogCanvas.remove();
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}
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// canvas to draw the images
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let createCanvas = (name) => {
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// Create a new canvas element
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let canvas = document.createElement('canvas');
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canvas.className = name;
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// Append the canvas to the aladinDiv
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this.aladinDiv.insertBefore(canvas, this.aladinDiv.firstChild);
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return canvas;
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};
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this.catalogCanvas = createCanvas('aladin-catalogCanvas');
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this.gridCanvas = createCanvas('aladin-gridCanvas');
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this.imageCanvas = createCanvas('aladin-imageCanvas');
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};
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// called at startup and when window is resized
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// The WebGL backend is resized
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View.prototype.fixLayoutDimensions = function () {
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// make de line height at 0. This prevents the resize observer to infinitely
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// trigger over and over.
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this.aladinDiv.style.setProperty('line-height', 0);
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Utils.cssScale = undefined;
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var computedWidth = Math.floor(parseFloat(this.aladinDiv.getBoundingClientRect().width)) || 1.0;
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var computedHeight = Math.floor(parseFloat(this.aladinDiv.getBoundingClientRect().height)) || 1.0;
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this.width = Math.max(computedWidth, 1);
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this.height = Math.max(computedHeight, 1); // this prevents many problems when div size is equal to 0
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this.cx = this.width / 2;
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this.cy = this.height / 2;
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this.largestDim = Math.max(this.width, this.height);
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this.smallestDim = Math.min(this.width, this.height);
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this.ratio = this.largestDim / this.smallestDim;
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this.mouseMoveIncrement = 160 / this.largestDim;
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// reinitialize 2D context
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this.catalogCtx = this.catalogCanvas.getContext("2d");
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this.catalogCtx.canvas.width = this.width;
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this.catalogCtx.canvas.height = this.height;
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this.gridCtx = this.gridCanvas.getContext("2d");
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this.gridCtx.canvas.width = this.width;
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this.gridCtx.canvas.height = this.height;
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this.imageCtx = this.imageCanvas.getContext("webgl2");
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this.imageCtx.canvas.style.width = this.width + "px";
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this.imageCtx.canvas.style.height = this.height + "px";
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this.wasm.resize(this.width, this.height);
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pixelateCanvasContext(this.imageCtx, this.aladin.options.pixelateCanvas);
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// change logo
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if (!this.logoDiv) {
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this.logoDiv = this.aladinDiv.querySelector('.aladin-logo');
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}
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if (this.logoDiv) {
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if (this.width > 800) {
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this.logoDiv.classList.remove('aladin-logo-small');
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this.logoDiv.classList.add('aladin-logo-large');
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this.logoDiv.style.width = '90px';
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}
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else {
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this.logoDiv.classList.add('aladin-logo-small');
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this.logoDiv.classList.remove('aladin-logo-large');
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this.logoDiv.style.width = '32px';
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}
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}
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this.computeNorder();
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this.aladinDiv.style.removeProperty('line-height');
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};
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var pixelateCanvasContext = function (ctx, pixelateFlag) {
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var enableSmoothing = !pixelateFlag;
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ctx.imageSmoothingEnabled = enableSmoothing;
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ctx.webkitImageSmoothingEnabled = enableSmoothing;
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ctx.mozImageSmoothingEnabled = enableSmoothing;
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ctx.msImageSmoothingEnabled = enableSmoothing;
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ctx.oImageSmoothingEnabled = enableSmoothing;
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}
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View.prototype.startSelection = function(mode, callback) {
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this.selector.setMode(mode);
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this.selector.dispatch('start', {callback});
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}
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View.prototype.setMode = function (mode) {
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this.mode = mode;
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if (this.mode == View.TOOL_SIMBAD_POINTER) {
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this.aladin.popup.hide();
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this.catalogCanvas.style.cursor = '';
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this.catalogCanvas.classList.add('aladin-sp-cursor');
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}
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else if (this.mode == View.PAN) {
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this.setCursor('default');
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}
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else if (this.mode == View.SELECT) {
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this.setCursor('crosshair');
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this.aladin.showReticle(false)
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}
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ALEvent.MODE.dispatchedTo(this.aladin.aladinDiv, {mode});
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};
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View.prototype.setCursor = function (cursor) {
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if (this.catalogCanvas.style.cursor == cursor) {
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return;
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}
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this.catalogCanvas.style.cursor = cursor;
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};
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/**
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* return dataURL string corresponding to the current view
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*/
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View.prototype.getCanvasDataURL = async function (imgType, width, height) {
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const loadImage = function (url) {
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return new Promise((resolve, reject) => {
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var image = new Image()
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image.src = url
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image.onload = () => resolve(image)
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image.onerror = () => reject(new Error('could not load image'))
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})
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}
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return loadImage("data:image/png;base64,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")
|
|
.then((img) => {
|
|
imgType = imgType || "image/png";
|
|
|
|
const canvas = this.wasm.canvas();
|
|
|
|
var c = document.createElement('canvas');
|
|
let dpi = window.devicePixelRatio;
|
|
c.width = width || (this.width * dpi);
|
|
c.height = height || (this.height * dpi);
|
|
|
|
var ctx = c.getContext('2d');
|
|
|
|
ctx.drawImage(canvas, 0, 0, c.width, c.height);
|
|
ctx.drawImage(this.catalogCanvas, 0, 0, c.width, c.height);
|
|
|
|
const offX = c.width - img.width;
|
|
const offY = c.height - img.height;
|
|
ctx.drawImage(img, offX, offY);
|
|
|
|
return c.toDataURL(imgType);
|
|
});
|
|
};
|
|
|
|
|
|
View.prototype.selectLayer = function (layer) {
|
|
if (!this.imageLayers.has(layer)) {
|
|
throw layer + ' does not exists. So cannot be selected';
|
|
}
|
|
this.selectedLayer = layer;
|
|
};
|
|
|
|
var createListeners = function (view) {
|
|
if ('virtualKeyboard' in navigator) {
|
|
// The VirtualKeyboard API is supported!
|
|
navigator.virtualKeyboard.overlaysContent = true;
|
|
}
|
|
|
|
// various listeners
|
|
let onDblClick = function (e) {
|
|
const xymouse = Utils.relMouseCoords(e);
|
|
|
|
// deselect all the selected sources with Select panel
|
|
view.unselectObjects()
|
|
|
|
try {
|
|
const lonlat = view.wasm.screenToWorld(xymouse.x, xymouse.y);
|
|
var radec = view.wasm.viewToICRSCooSys(lonlat[0], lonlat[1]);
|
|
view.pointTo(radec[0], radec[1]);
|
|
}
|
|
catch (err) {
|
|
return;
|
|
}
|
|
|
|
};
|
|
|
|
if (!Utils.hasTouchScreen()) {
|
|
Utils.on(view.catalogCanvas, 'dblclick', onDblClick);
|
|
}
|
|
|
|
// prevent default context menu from appearing (potential clash with right-click cuts control)
|
|
Utils.on(view.catalogCanvas, "contextmenu", function (e) {
|
|
// do something here...
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
}, false);
|
|
|
|
|
|
let cutMinInit = null
|
|
let cutMaxInit = null;
|
|
|
|
var onlongtouch = function(e) {
|
|
if (view.aladin.statusBar) {
|
|
view.aladin.statusBar.removeMessage('opening-ctxmenu')
|
|
}
|
|
|
|
view.aladin.contextMenu && view.aladin.contextMenu.show({e});
|
|
};
|
|
var longTouchTimer;
|
|
var longTouchDuration = 800;
|
|
var xystart;
|
|
|
|
var handleSelect = function(xy, tolerance) {
|
|
tolerance = tolerance || 5;
|
|
var objs = view.closestObjects(xy.x, xy.y, tolerance);
|
|
// Deselect objects if any
|
|
view.unselectObjects();
|
|
if (objs) {
|
|
var o = objs[0];
|
|
|
|
// footprint selection code adapted from Fabrizio Giordano dev. from Serco for ESA/ESDC
|
|
if (o.marker) {
|
|
// could be factorized in Source.actionClicked
|
|
view.aladin.popup.setTitle(o.popupTitle);
|
|
view.aladin.popup.setText(o.popupDesc);
|
|
view.aladin.popup.setSource(o);
|
|
view.aladin.popup.show();
|
|
}
|
|
else {
|
|
if (view.lastClickedObject) {
|
|
view.lastClickedObject.actionOtherObjectClicked && view.lastClickedObject.actionOtherObjectClicked();
|
|
}
|
|
}
|
|
|
|
// show measurements
|
|
if (o.actionClicked) {
|
|
o.actionClicked();
|
|
}
|
|
|
|
var objClickedFunction = view.aladin.callbacksByEventName['objectClicked'];
|
|
(typeof objClickedFunction === 'function') && objClickedFunction(o, xy);
|
|
|
|
if (o.isFootprint()) {
|
|
var footprintClickedFunction = view.aladin.callbacksByEventName['footprintClicked'];
|
|
if (typeof footprintClickedFunction === 'function' && o != view.lastClickedObject) {
|
|
var ret = footprintClickedFunction(o, xy);
|
|
}
|
|
}
|
|
|
|
view.lastClickedObject = o;
|
|
} else {
|
|
// If there is a past clicked object
|
|
if (view.lastClickedObject) {
|
|
//view.aladin.measurementTable.hide();
|
|
//view.aladin.sodaForm.hide();
|
|
view.aladin.popup.hide();
|
|
|
|
// Deselect the last clicked object
|
|
if (view.lastClickedObject instanceof Ellipse || view.lastClickedObject instanceof Circle || view.lastClickedObject instanceof Polyline) {
|
|
view.lastClickedObject.deselect();
|
|
} else {
|
|
// Case where lastClickedObject is a Source
|
|
view.lastClickedObject.actionOtherObjectClicked();
|
|
}
|
|
|
|
var objClickedFunction = view.aladin.callbacksByEventName['objectClicked'];
|
|
(typeof objClickedFunction === 'function') && objClickedFunction(null, xy);
|
|
|
|
view.lastClickedObject = null;
|
|
}
|
|
}
|
|
}
|
|
var touchStartTime;
|
|
Utils.on(view.catalogCanvas, "mousedown touchstart", function (e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
const xymouse = Utils.relMouseCoords(e);
|
|
|
|
ALEvent.CANVAS_EVENT.dispatchedTo(view.aladinDiv, {
|
|
state: {
|
|
mode: view.mode,
|
|
dragging: view.dragging,
|
|
rightClickPressed: view.rightClick
|
|
},
|
|
type: e.type,
|
|
xy: xymouse,
|
|
});
|
|
|
|
xystart = xymouse;
|
|
|
|
if (e.which === 3 || e.button === 2) {
|
|
view.rightClick = true;
|
|
view.rightClickTimeStart = Date.now();
|
|
view.rightclickx = xymouse.x;
|
|
view.rightclicky = xymouse.y;
|
|
|
|
if (view.selectedLayer) {
|
|
const imageLayer = view.imageLayers.get(view.selectedLayer);
|
|
if (imageLayer) {
|
|
// Take as start cut values what is inside the properties
|
|
// If the cuts are not defined in the metadata of the survey
|
|
// then we take what has been defined by the user
|
|
cutMinInit = imageLayer.getColorCfg().minCut || 0.0;
|
|
cutMaxInit = imageLayer.getColorCfg().maxCut || 1.0;
|
|
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// detect long touch
|
|
if (e.type === 'touchstart' && e.targetTouches && e.targetTouches.length == 1) {
|
|
if (view.aladin.statusBar) {
|
|
view.aladin.statusBar.appendMessage({
|
|
id: 'opening-ctxmenu',
|
|
message: 'Opening menu...',
|
|
duration: 'unlimited',
|
|
offsetTimeDisplay: 200, // in ms
|
|
type: 'loading'
|
|
})
|
|
}
|
|
|
|
longTouchTimer = setTimeout(() => {onlongtouch(e); view.dragging = false;}, longTouchDuration);
|
|
touchStartTime = Date.now();
|
|
|
|
}
|
|
|
|
// zoom pinching
|
|
if (e.type === 'touchstart' && e.targetTouches && e.targetTouches.length == 2) {
|
|
view.dragging = false;
|
|
|
|
view.pinchZoomParameters.isPinching = true;
|
|
//var fov = view.aladin.getFov();
|
|
//view.pinchZoomParameters.initialFov = Math.max(fov[0], fov[1]);
|
|
var fov = view.wasm.getFieldOfView();
|
|
view.pinchZoomParameters.initialFov = fov;
|
|
view.pinchZoomParameters.initialDistance = Math.sqrt(Math.pow(e.targetTouches[0].clientX - e.targetTouches[1].clientX, 2) + Math.pow(e.targetTouches[0].clientY - e.targetTouches[1].clientY, 2));
|
|
|
|
view.fingersRotationParameters.initialViewAngleFromCenter = view.wasm.getRotationAroundCenter();
|
|
view.fingersRotationParameters.initialFingerAngle = Math.atan2(e.targetTouches[1].clientY - e.targetTouches[0].clientY, e.targetTouches[1].clientX - e.targetTouches[0].clientX) * 180.0 / Math.PI;
|
|
|
|
return;
|
|
}
|
|
|
|
view.dragCoo = xymouse;
|
|
|
|
view.dragging = true;
|
|
view.aladin.contextMenu && view.aladin.contextMenu._hide()
|
|
|
|
if (view.mode === View.PAN) {
|
|
view.setCursor('move');
|
|
}
|
|
|
|
view.wasm.pressLeftMouseButton(view.dragCoo.x, view.dragCoo.y);
|
|
|
|
if (view.mode === View.SELECT) {
|
|
view.selector.dispatch('mousedown', {coo: xymouse})
|
|
}
|
|
|
|
// false disables default browser behaviour like possibility to touch hold for context menu.
|
|
// To disable text selection use css user-select: none instead of putting this value to false
|
|
return true;
|
|
});
|
|
|
|
Utils.on(view.catalogCanvas, "mouseup", function (e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
const xymouse = Utils.relMouseCoords(e);
|
|
|
|
ALEvent.CANVAS_EVENT.dispatchedTo(view.aladinDiv, {
|
|
state: {
|
|
mode: view.mode,
|
|
dragging: view.dragging,
|
|
rightClickPressed: view.rightClick
|
|
},
|
|
xy: xymouse,
|
|
ev: e,
|
|
});
|
|
|
|
if (view.rightClick) {
|
|
const rightClickDurationMs = Date.now() - view.rightClickTimeStart;
|
|
if (rightClickDurationMs < 300) {
|
|
view.aladin.contextMenu && view.aladin.contextMenu.show({e});
|
|
}
|
|
|
|
view.rightClick = false;
|
|
view.rightclickx = null;
|
|
view.rightclicky = null;
|
|
view.rightClickTimeStart = undefined;
|
|
|
|
return;
|
|
}
|
|
|
|
if (view.mode === View.SELECT) {
|
|
view.selector.dispatch('mouseup', {coo: xymouse})
|
|
}
|
|
});
|
|
|
|
// reacting on 'click' rather on 'mouseup' is more reliable when panning the view
|
|
Utils.on(view.catalogCanvas, "click mouseout touchend touchcancel", function (e) {
|
|
const xymouse = Utils.relMouseCoords(e);
|
|
|
|
ALEvent.CANVAS_EVENT.dispatchedTo(view.aladinDiv, {
|
|
state: {
|
|
mode: view.mode,
|
|
dragging: view.dragging,
|
|
rightClickPressed: view.rightClick
|
|
},
|
|
type: e.type,
|
|
ev: e,
|
|
});
|
|
|
|
|
|
if (e.type === 'touchend' || e.type === 'touchcancel') {
|
|
if (longTouchTimer) {
|
|
if (view.aladin.statusBar) {
|
|
view.aladin.statusBar.removeMessage('opening-ctxmenu')
|
|
}
|
|
clearTimeout(longTouchTimer)
|
|
}
|
|
}
|
|
|
|
xystart = undefined;
|
|
|
|
if ((e.type === 'touchend' || e.type === 'touchcancel') && view.pinchZoomParameters.isPinching) {
|
|
view.pinchZoomParameters.isPinching = false;
|
|
view.pinchZoomParameters.initialFov = view.pinchZoomParameters.initialDistance = undefined;
|
|
|
|
return;
|
|
}
|
|
if ((e.type === 'touchend' || e.type === 'touchcancel') && view.fingersRotationParameters.rotationInitiated) {
|
|
view.fingersRotationParameters.initialViewAngleFromCenter = undefined;
|
|
view.fingersRotationParameters.initialFingerAngle = undefined;
|
|
view.fingersRotationParameters.rotationInitiated = false;
|
|
|
|
return;
|
|
}
|
|
|
|
var wasDragging = view.realDragging === true;
|
|
|
|
if (view.dragging) { // if we were dragging, reset to default cursor
|
|
if(view.mode === View.PAN) {
|
|
view.setCursor('default');
|
|
}
|
|
|
|
view.dragging = false;
|
|
|
|
if (wasDragging) {
|
|
view.realDragging = false;
|
|
}
|
|
} // end of "if (view.dragging) ... "
|
|
|
|
view.mustClearCatalog = true;
|
|
view.dragCoo = null;
|
|
|
|
if (e.type === "mouseout" || e.type === "touchend" || e.type === "touchcancel") {
|
|
if (e.type === "mouseout" || e.type === "touchcancel") {
|
|
if (view.mode === View.SELECT) {
|
|
view.selector.dispatch('mouseout', {coo: xymouse, e})
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (e.type === "touchend") {
|
|
if (view.mode === View.SELECT) {
|
|
view.selector.dispatch('mouseup', {coo: xymouse})
|
|
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (view.mode == View.TOOL_SIMBAD_POINTER) {
|
|
// call Simbad pointer or Planetary features
|
|
GenericPointer(view, e);
|
|
|
|
return; // when in TOOL_SIMBAD_POINTER mode, we do not call the listeners
|
|
}
|
|
|
|
// popup to show ?
|
|
if (!wasDragging || e.type === "touchend") {
|
|
if (e.type === "touchend") {
|
|
if (e.targetTouches && e.targetTouches.length == 0) {
|
|
// Check if the user moved a lot or not
|
|
// maybe check the time between the last touch start
|
|
const elapsedTime = Date.now() - touchStartTime;
|
|
if (elapsedTime < 100) {
|
|
view.updateObjectsLookup();
|
|
handleSelect(xymouse, 10);
|
|
}
|
|
}
|
|
} else {
|
|
handleSelect(xymouse);
|
|
}
|
|
}
|
|
|
|
// call listener of 'click' event
|
|
var onClickFunction = view.aladin.callbacksByEventName['click'];
|
|
if (typeof onClickFunction === 'function') {
|
|
var pos = view.aladin.pix2world(xymouse.x, xymouse.y);
|
|
if (pos !== undefined) {
|
|
onClickFunction({ ra: pos[0], dec: pos[1], x: xymouse.x, y: xymouse.y, isDragging: wasDragging });
|
|
}
|
|
}
|
|
|
|
// TODO : remplacer par mecanisme de listeners
|
|
// on avertit les catalogues progressifs
|
|
view.refreshProgressiveCats();
|
|
|
|
//view.requestRedraw();
|
|
view.wasm.releaseLeftButtonMouse(xymouse.x, xymouse.y);
|
|
|
|
if (view.mode === View.SELECT && e.type === "click") {
|
|
view.selector.dispatch('click', {coo: xymouse})
|
|
}
|
|
});
|
|
|
|
var lastHoveredObject; // save last object hovered by mouse
|
|
var lastMouseMovePos = null;
|
|
Utils.on(view.catalogCanvas, "mousemove touchmove", function (e) {
|
|
e.preventDefault();
|
|
//e.stopPropagation();
|
|
|
|
const xymouse = Utils.relMouseCoords(e);
|
|
|
|
ALEvent.CANVAS_EVENT.dispatchedTo(view.aladinDiv, {
|
|
state: {
|
|
mode: view.mode,
|
|
dragging: view.dragging,
|
|
rightClickPressed: view.rightClick
|
|
},
|
|
type: e.type,
|
|
xy: xymouse,
|
|
});
|
|
|
|
if (e.type === 'touchmove' && xystart) {
|
|
let dist = (() => {
|
|
return (xymouse.x - xystart.x)*(xymouse.x - xystart.x) + (xymouse.y - xystart.y)*(xymouse.y - xystart.y)
|
|
})();
|
|
if (longTouchTimer && dist > 100) {
|
|
if (view.aladin.statusBar) {
|
|
view.aladin.statusBar.removeMessage('opening-ctxmenu')
|
|
}
|
|
clearTimeout(longTouchTimer)
|
|
xystart = undefined;
|
|
}
|
|
}
|
|
|
|
if (view.rightClick) {
|
|
var onRightClickMoveFunction = view.aladin.callbacksByEventName['rightClickMove'];
|
|
if (typeof onRightClickMoveFunction === 'function') {
|
|
onRightClickMoveFunction(xymouse.x, xymouse.y);
|
|
|
|
// do not process further
|
|
return;
|
|
}
|
|
|
|
if(view.selectedLayer) {
|
|
let selectedLayer = view.imageLayers.get(view.selectedLayer);
|
|
// We try to match DS9 contrast adjustment behaviour with right click
|
|
const cs = {
|
|
x: view.catalogCanvas.clientWidth * 0.5,
|
|
y: view.catalogCanvas.clientHeight * 0.5,
|
|
};
|
|
const cx = (xymouse.x - cs.x) / view.catalogCanvas.clientWidth;
|
|
const cy = -(xymouse.y - cs.y) / view.catalogCanvas.clientHeight;
|
|
|
|
const offset = (cutMaxInit - cutMinInit) * cx;
|
|
|
|
const lr = offset + (1.0 - 2.0 * cy) * cutMinInit;
|
|
const rr = offset + (1.0 + 2.0 * cy) * cutMaxInit;
|
|
|
|
if (lr <= rr) {
|
|
selectedLayer.setCuts(lr, rr)
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (e.type === 'touchmove' && view.pinchZoomParameters.isPinching && e.touches && e.touches.length == 2) {
|
|
// rotation
|
|
var currentFingerAngle = Math.atan2(e.targetTouches[1].clientY - e.targetTouches[0].clientY, e.targetTouches[1].clientX - e.targetTouches[0].clientX) * 180.0 / Math.PI;
|
|
var fingerAngleDiff = view.fingersRotationParameters.initialFingerAngle - currentFingerAngle;
|
|
// rotation is initiated when angle is equal or greater than 7 degrees
|
|
if (!view.fingersRotationParameters.rotationInitiated && Math.abs(fingerAngleDiff) >= 7) {
|
|
view.fingersRotationParameters.rotationInitiated = true;
|
|
view.fingersRotationParameters.initialFingerAngle = currentFingerAngle;
|
|
fingerAngleDiff = 0;
|
|
}
|
|
|
|
if (view.fingersRotationParameters.rotationInitiated) {
|
|
let rotation = view.fingersRotationParameters.initialViewAngleFromCenter;
|
|
if (!view.wasm.getLongitudeReversed()) {
|
|
// spatial survey case
|
|
rotation += fingerAngleDiff;
|
|
} else {
|
|
// planetary survey case
|
|
rotation -= fingerAngleDiff;
|
|
}
|
|
view.wasm.setRotationAroundCenter(rotation);
|
|
}
|
|
|
|
// zoom
|
|
const dist = Math.sqrt(Math.pow(e.touches[0].clientX - e.touches[1].clientX, 2) + Math.pow(e.touches[0].clientY - e.touches[1].clientY, 2));
|
|
const fov = Math.min(Math.max(view.pinchZoomParameters.initialFov * view.pinchZoomParameters.initialDistance / dist, 0.00002777777), view.projection.fov);
|
|
view.setZoom(fov);
|
|
|
|
return;
|
|
}
|
|
|
|
if (!view.dragging && !view.moving) {
|
|
view.updateObjectsLookup();
|
|
}
|
|
|
|
/*if (!view.dragging || Utils.hasTouchScreen()) {
|
|
// update location box
|
|
view.updateLocation({mouseX: xymouse.x, mouseY: xymouse.y});
|
|
}*/
|
|
|
|
if (!view.dragging && !view.moving && view.mode === View.PAN) {
|
|
// call listener of 'mouseMove' event
|
|
var onMouseMoveFunction = view.aladin.callbacksByEventName['mouseMove'];
|
|
if (typeof onMouseMoveFunction === 'function') {
|
|
var pos = view.aladin.pix2world(xymouse.x, xymouse.y);
|
|
if (pos !== undefined) {
|
|
onMouseMoveFunction({ ra: pos[0], dec: pos[1], x: xymouse.x, y: xymouse.y });
|
|
}
|
|
// send null ra and dec when we go out of the "sky"
|
|
else if (lastMouseMovePos != null) {
|
|
onMouseMoveFunction({ ra: null, dec: null, x: xymouse.x, y: xymouse.y });
|
|
}
|
|
lastMouseMovePos = pos;
|
|
}
|
|
|
|
// closestObjects is very costly, we would like to not do it
|
|
// especially if the objectHovered function is not defined.
|
|
var closest = view.closestObjects(xymouse.x, xymouse.y, 5);
|
|
|
|
if (closest) {
|
|
let o = closest[0];
|
|
var objHoveredFunction = view.aladin.callbacksByEventName['objectHovered'];
|
|
var footprintHoveredFunction = view.aladin.callbacksByEventName['footprintHovered'];
|
|
|
|
view.setCursor('pointer');
|
|
if (typeof objHoveredFunction === 'function' && o != lastHoveredObject) {
|
|
var ret = objHoveredFunction(o, xymouse);
|
|
}
|
|
|
|
if (o.isFootprint()) {
|
|
if (typeof footprintHoveredFunction === 'function' && o != lastHoveredObject) {
|
|
var ret = footprintHoveredFunction(o, xymouse);
|
|
}
|
|
}
|
|
|
|
if (lastHoveredObject && o != lastHoveredObject) {
|
|
lastHoveredObject.unhover();
|
|
|
|
var objHoveredStopFunction = view.aladin.callbacksByEventName['objectHoveredStop'];
|
|
|
|
if (typeof objHoveredStopFunction === 'function') {
|
|
objHoveredStopFunction(lastHoveredObject, xymouse);
|
|
}
|
|
}
|
|
|
|
if (o != lastHoveredObject) {
|
|
o.hover();
|
|
}
|
|
lastHoveredObject = o;
|
|
} else {
|
|
view.setCursor('default');
|
|
var objHoveredStopFunction = view.aladin.callbacksByEventName['objectHoveredStop'];
|
|
if (lastHoveredObject) {
|
|
if (typeof objHoveredStopFunction === 'function') {
|
|
// call callback function to notify we left the hovered object
|
|
var ret = objHoveredStopFunction(lastHoveredObject, xymouse);
|
|
}
|
|
|
|
lastHoveredObject.unhover();
|
|
}
|
|
|
|
lastHoveredObject = null;
|
|
}
|
|
|
|
if (e.type === "mousemove") {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (view.mode === View.SELECT) {
|
|
view.selector.dispatch('mousemove', {coo: xymouse})
|
|
}
|
|
|
|
if (!view.dragging) {
|
|
return;
|
|
}
|
|
|
|
view.realDragging = true;
|
|
|
|
|
|
var s1 = view.dragCoo, s2 = xymouse;
|
|
// update drag coo with the new position
|
|
view.dragCoo = xymouse;
|
|
|
|
/*if (view.mode == View.SELECT) {
|
|
view.requestRedraw();
|
|
return;
|
|
}*/
|
|
|
|
if (view.mode === View.PAN) {
|
|
view.wasm.moveMouse(s1.x, s1.y, s2.x, s2.y);
|
|
view.wasm.goFromTo(s1.x, s1.y, s2.x, s2.y);
|
|
|
|
view.updateCenter();
|
|
|
|
ALEvent.POSITION_CHANGED.dispatchedTo(view.aladin.aladinDiv, view.viewCenter);
|
|
|
|
// Apply position changed callback after the move
|
|
view.throttledPositionChanged();
|
|
}
|
|
}); //// endof mousemove ////
|
|
|
|
// disable text selection on IE
|
|
Utils.on(view.aladinDiv, "selectstart", function () { return false; })
|
|
var eventCount = 0;
|
|
var eventCountStart;
|
|
var isTouchPad;
|
|
var scale = 0.0;
|
|
Utils.on(view.catalogCanvas, 'wheel', function (e) {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
|
|
const xymouse = Utils.relMouseCoords(e);
|
|
|
|
ALEvent.CANVAS_EVENT.dispatchedTo(view.aladinDiv, {
|
|
state: {
|
|
mode: view.mode,
|
|
dragging: view.dragging,
|
|
rightClickPressed: view.rightClick
|
|
},
|
|
type: e.type,
|
|
xy: xymouse,
|
|
});
|
|
|
|
if (view.rightClick) {
|
|
return;
|
|
}
|
|
|
|
var delta = e.deltaY || e.detail || (-e.wheelDelta);
|
|
|
|
// Limit the minimum and maximum zoom levels
|
|
//var delta = e.deltaY;
|
|
// this seems to happen in context of Jupyter notebook --> we have to invert the direction of scroll
|
|
// hope this won't trigger some side effects ...
|
|
/*if (e.hasOwnProperty('originalEvent')) {
|
|
delta = -e.deltaY;
|
|
}*/
|
|
|
|
// See https://stackoverflow.com/questions/10744645/detect-touchpad-vs-mouse-in-javascript
|
|
// for detecting the use of a touchpad
|
|
var isTouchPadDefined = isTouchPad || typeof isTouchPad !== "undefined";
|
|
if (!isTouchPadDefined) {
|
|
if (eventCount === 0) {
|
|
eventCountStart = new Date().getTime();
|
|
}
|
|
|
|
eventCount++;
|
|
|
|
if (new Date().getTime() - eventCountStart > 100) {
|
|
if (eventCount > 10) {
|
|
isTouchPad = true;
|
|
} else {
|
|
isTouchPad = false;
|
|
}
|
|
isTouchPadDefined = true;
|
|
}
|
|
}
|
|
|
|
// The value of the field of view is determined
|
|
// inside the backend
|
|
const triggerZoom = (amount) => {
|
|
if (delta < 0.0) {
|
|
view.increaseZoom(amount);
|
|
} else {
|
|
view.decreaseZoom(amount);
|
|
}
|
|
};
|
|
|
|
if (isTouchPadDefined) {
|
|
let dt = performance.now() - view.then
|
|
|
|
let a0, a1;
|
|
|
|
// touchpad
|
|
if (isTouchPad) {
|
|
a1 = 0.002;
|
|
a0 = 0.0002;
|
|
} else {
|
|
a1 = 0.01;
|
|
a0 = 0.0004;
|
|
}
|
|
|
|
const alpha = Math.pow(view.fov / view.projection.fov, 0.5);
|
|
|
|
const lerp = a0 * alpha + a1 * (1.0 - alpha);
|
|
triggerZoom(lerp);
|
|
}
|
|
|
|
if (!view.debounceProgCatOnZoom) {
|
|
var self = view;
|
|
view.debounceProgCatOnZoom = Utils.debounce(function () {
|
|
self.refreshProgressiveCats();
|
|
self.drawAllOverlays();
|
|
}, 300);
|
|
}
|
|
|
|
view.debounceProgCatOnZoom();
|
|
view.throttledZoomChanged();
|
|
|
|
return false;
|
|
});
|
|
};
|
|
|
|
var init = function (view) {
|
|
var stats = new Stats();
|
|
stats.domElement.style.top = '50px';
|
|
|
|
var statsDiv = document.getElementById('aladin-statsDiv');
|
|
|
|
if (statsDiv) {
|
|
// Append stats.domElement to statsDiv
|
|
statsDiv.appendChild(stats.domElement);
|
|
}
|
|
|
|
view.stats = stats;
|
|
|
|
createListeners(view);
|
|
|
|
view.displayHpxGrid = false;
|
|
view.displayCatalog = false;
|
|
};
|
|
|
|
View.prototype.requestRedrawAtDate = function (date) {
|
|
this.dateRequestDraw = date;
|
|
};
|
|
|
|
View.prototype.getViewParams = function () {
|
|
var resolution = this.width > this.height ? this.fov / this.width : this.fov / this.height;
|
|
return {
|
|
fov: [this.width * resolution, this.height * resolution],
|
|
width: this.width,
|
|
height: this.height
|
|
};
|
|
};
|
|
|
|
View.FPS_INTERVAL = 1000 / 140;
|
|
|
|
/**
|
|
* redraw the whole view
|
|
*/
|
|
View.prototype.redraw = function () {
|
|
// request another frame
|
|
|
|
// Elapsed time since last loop
|
|
const now = performance.now();
|
|
const elapsedTime = now - this.then;
|
|
this.dt = elapsedTime;
|
|
// If enough time has elapsed, draw the next frame
|
|
//if (elapsedTime >= View.FPS_INTERVAL) {
|
|
// Get ready for next frame by setting then=now, but also adjust for your
|
|
// specified fpsInterval not being a multiple of RAF's interval (16.7ms)
|
|
|
|
// Drawing code
|
|
|
|
try {
|
|
this.moving = this.wasm.update(elapsedTime);
|
|
} catch (e) {
|
|
console.error(e)
|
|
}
|
|
|
|
////// 2. Draw catalogues////////
|
|
const isViewRendering = this.wasm.isRendering();
|
|
if (isViewRendering || this.needRedraw) {
|
|
this.drawAllOverlays();
|
|
}
|
|
this.needRedraw = false;
|
|
|
|
this.then = now;
|
|
//this.then = now % View.FPS_INTERVAL;
|
|
requestAnimFrame(this.redrawClbk);
|
|
//}
|
|
};
|
|
|
|
View.prototype.drawAllOverlays = function () {
|
|
var ctx = this.catalogCtx;
|
|
this.catalogCanvasCleared = false;
|
|
if (this.mustClearCatalog) {
|
|
ctx.clearRect(0, 0, this.width, this.height);
|
|
this.catalogCanvasCleared = true;
|
|
this.mustClearCatalog = false;
|
|
}
|
|
|
|
if (this.catalogs && this.catalogs.length > 0 && this.displayCatalog && (!this.dragging || View.DRAW_SOURCES_WHILE_DRAGGING)) {
|
|
// TODO : do not clear every time
|
|
//// clear canvas ////
|
|
if (!this.catalogCanvasCleared) {
|
|
ctx.clearRect(0, 0, this.width, this.height);
|
|
this.catalogCanvasCleared = true;
|
|
}
|
|
|
|
for (var i = 0; i < this.catalogs.length; i++) {
|
|
var cat = this.catalogs[i];
|
|
cat.draw(ctx, this.cooFrame, this.width, this.height, this.largestDim);
|
|
}
|
|
}
|
|
// draw popup catalog
|
|
if (this.catalogForPopup.isShowing && this.catalogForPopup.sources.length > 0) {
|
|
if (!this.catalogCanvasCleared) {
|
|
ctx.clearRect(0, 0, this.width, this.height);
|
|
this.catalogCanvasCleared = true;
|
|
}
|
|
|
|
this.catalogForPopup.draw(ctx, this.cooFrame, this.width, this.height, this.largestDim);
|
|
|
|
// draw popup overlay layer
|
|
if (this.overlayForPopup.isShowing) {
|
|
this.overlayForPopup.draw(ctx, this.cooFrame, this.width, this.height, this.largestDim);
|
|
}
|
|
}
|
|
|
|
////// 3. Draw overlays////////
|
|
if (this.overlays && this.overlays.length > 0 && (!this.dragging || View.DRAW_SOURCES_WHILE_DRAGGING)) {
|
|
if (!this.catalogCanvasCleared) {
|
|
ctx.clearRect(0, 0, this.width, this.height);
|
|
this.catalogCanvasCleared = true;
|
|
}
|
|
|
|
for (var i = 0; i < this.overlays.length; i++) {
|
|
this.overlays[i].draw(ctx);
|
|
}
|
|
}
|
|
|
|
// Redraw HEALPix grid
|
|
if (this.displayHpxGrid) {
|
|
if (!this.catalogCanvasCleared) {
|
|
ctx.clearRect(0, 0, this.width, this.height);
|
|
this.catalogCanvasCleared = true;
|
|
}
|
|
|
|
var cornersXYViewMapAllsky = this.getVisibleCells(3);
|
|
var cornersXYViewMapHighres = null;
|
|
if (this.curNorder >= 3) {
|
|
if (this.curNorder == 3) {
|
|
cornersXYViewMapHighres = cornersXYViewMapAllsky;
|
|
}
|
|
else {
|
|
cornersXYViewMapHighres = this.getVisibleCells(this.curNorder);
|
|
}
|
|
}
|
|
if (cornersXYViewMapHighres && this.curNorder > 3) {
|
|
this.healpixGrid.redraw(ctx, cornersXYViewMapHighres, this.fov, this.curNorder);
|
|
}
|
|
else {
|
|
this.healpixGrid.redraw(ctx, cornersXYViewMapAllsky, this.fov, 3);
|
|
}
|
|
}
|
|
|
|
if (this.mode === View.SELECT) {
|
|
this.selector.dispatch('draw')
|
|
}
|
|
};
|
|
|
|
View.prototype.refreshProgressiveCats = function () {
|
|
if (!this.catalogs) {
|
|
return;
|
|
}
|
|
|
|
for (var i = 0; i < this.catalogs.length; i++) {
|
|
if (this.catalogs[i].type == 'progressivecat') {
|
|
this.catalogs[i].loadNeededTiles();
|
|
}
|
|
}
|
|
};
|
|
|
|
View.prototype.getVisiblePixList = function (norder) {
|
|
var pixList = [];
|
|
let centerWorldPosition = this.wasm.screenToWorld(this.cx, this.cy);
|
|
const [lon, lat] = this.wasm.viewToICRSCooSys(centerWorldPosition[0], centerWorldPosition[1]);
|
|
|
|
var radius = this.fov * 0.5 * this.ratio;
|
|
this.wasm.queryDisc(norder, lon, lat, radius).forEach(x => pixList.push(Number(x)));
|
|
|
|
return pixList;
|
|
};
|
|
|
|
View.prototype.unselectObjects = function() {
|
|
this.aladin.measurementTable.hide();
|
|
|
|
if (this.selection) {
|
|
this.selection.forEach((objList) => {
|
|
objList.forEach((o) => o.deselect())
|
|
});
|
|
|
|
this.selection = null;
|
|
}
|
|
|
|
// reattach the default contextmenu
|
|
if (this.aladin.contextMenu) {
|
|
this.aladin.contextMenu.attach(DefaultActionsForContextMenu.getDefaultActions(this.aladin));
|
|
}
|
|
|
|
this.requestRedraw();
|
|
}
|
|
|
|
View.prototype.selectObjects = function(selection) {
|
|
// unselect the previous selection
|
|
this.unselectObjects();
|
|
|
|
if (Array.isArray(selection)) {
|
|
this.selection = [selection];
|
|
} else {
|
|
// select the new
|
|
this.selection = Selector.getObjects(selection, this);
|
|
}
|
|
|
|
|
|
if (this.selection.length > 0) {
|
|
this.selection.forEach((objListPerCatalog) => {
|
|
objListPerCatalog.forEach((obj) => obj.select())
|
|
});
|
|
|
|
let tables = this.selection.map((objList) => {
|
|
// Get the catalog containing that list of objects
|
|
let catalog = objList[0].getCatalog();
|
|
|
|
let source;
|
|
let sources = objList.map((o) => {
|
|
if (o instanceof Footprint) {
|
|
source = o.source;
|
|
} else {
|
|
source = o;
|
|
}
|
|
|
|
return source;
|
|
});
|
|
let table = {
|
|
'name': catalog.name,
|
|
'color': catalog.color,
|
|
'rows': sources,
|
|
'fields': catalog.fields,
|
|
'showCallback': ObsCore.SHOW_CALLBACKS(this.aladin)
|
|
};
|
|
|
|
return table;
|
|
})
|
|
|
|
this.aladin.measurementTable.showMeasurement(tables);
|
|
let a = this.aladin;
|
|
const sampBtn = SAMPActionButton.sendSources(a);
|
|
|
|
if (a.contextMenu) {
|
|
a.contextMenu.attach([
|
|
{
|
|
label: Layout.horizontal([sampBtn, a.samp ? 'Send selection to SAMP' : 'SAMP disabled']),
|
|
},
|
|
{
|
|
label: 'Remove selection',
|
|
action(o) {
|
|
a.view.unselectObjects();
|
|
}
|
|
}
|
|
]);
|
|
}
|
|
}
|
|
}
|
|
|
|
View.prototype.getVisibleCells = function (norder) {
|
|
return this.wasm.getVisibleCells(norder);
|
|
};
|
|
|
|
// Called for touchmove events
|
|
// initialAccDelta must be consistent with fovDegrees here
|
|
View.prototype.setZoom = function (fov) {
|
|
// limit the fov in function of the projection
|
|
fov = Math.min(fov, this.projection.fov);
|
|
|
|
// then clamp the fov between minFov and maxFov
|
|
const minFoV = this.minFoV;
|
|
const maxFoV = this.maxFoV;
|
|
|
|
if (minFoV) {
|
|
fov = Math.max(fov, minFoV);
|
|
}
|
|
|
|
if (maxFoV) {
|
|
fov = Math.min(fov, maxFoV);
|
|
}
|
|
|
|
this.wasm.setFieldOfView(fov);
|
|
|
|
this.updateZoomState();
|
|
};
|
|
|
|
View.prototype.increaseZoom = function (amount) {
|
|
const si = 500000.0;
|
|
const alpha = 40.0;
|
|
|
|
let initialAccDelta = this.pinchZoomParameters.initialAccDelta + amount;
|
|
let new_fov = si / Math.pow(initialAccDelta, alpha);
|
|
|
|
if (new_fov < 0.00002777777) {
|
|
new_fov = 0.00002777777;
|
|
}
|
|
|
|
this.pinchZoomParameters.initialAccDelta = initialAccDelta;
|
|
this.setZoom(new_fov);
|
|
}
|
|
|
|
View.prototype.decreaseZoom = function (amount) {
|
|
const si = 500000.0;
|
|
const alpha = 40.0;
|
|
|
|
let initialAccDelta = this.pinchZoomParameters.initialAccDelta - amount;
|
|
|
|
if (initialAccDelta <= 0.0) {
|
|
initialAccDelta = 1e-3;
|
|
}
|
|
|
|
let new_fov = si / Math.pow(initialAccDelta, alpha);
|
|
|
|
if (new_fov >= this.projection.fov) {
|
|
new_fov = this.projection.fov;
|
|
}
|
|
|
|
this.pinchZoomParameters.initialAccDelta = initialAccDelta;
|
|
this.setZoom(new_fov);
|
|
}
|
|
|
|
View.prototype.setRotation = function(rotation) {
|
|
this.wasm.setRotationAroundCenter(rotation);
|
|
}
|
|
|
|
View.prototype.setGridConfig = function (gridCfg) {
|
|
this.gridCfg = {...this.gridCfg, ...gridCfg};
|
|
this.wasm.setGridConfig(this.gridCfg);
|
|
|
|
// send events
|
|
/*if (this.gridCfg.hasOwnProperty('enabled')) {
|
|
if (this.gridCfg.enabled === true) {
|
|
ALEvent.COO_GRID_ENABLED.dispatchedTo(this.aladinDiv);
|
|
}
|
|
else {
|
|
ALEvent.COO_GRID_DISABLED.dispatchedTo(this.aladinDiv);
|
|
}
|
|
}*/
|
|
|
|
ALEvent.COO_GRID_UPDATED.dispatchedTo(this.aladinDiv, this.gridCfg);
|
|
|
|
this.requestRedraw();
|
|
};
|
|
|
|
View.prototype.getGridConfig = function() {
|
|
return this.gridCfg;
|
|
}
|
|
|
|
View.prototype.updateZoomState = function () {
|
|
// Get the new zoom values from the backend
|
|
let fov = this.wasm.getFieldOfView();
|
|
|
|
// Update the pinch zoom parameters consequently
|
|
const si = 500000.0;
|
|
const alpha = 40.0;
|
|
this.pinchZoomParameters.initialAccDelta = Math.pow(si / fov, 1.0 / alpha);
|
|
|
|
// Save it
|
|
this.fov = fov;
|
|
this.computeNorder();
|
|
|
|
let fovX = this.fov;
|
|
let fovY = this.height / this.width * fovX;
|
|
fovX = Math.min(fovX, 360);
|
|
fovY = Math.min(fovY, 180);
|
|
|
|
ALEvent.ZOOM_CHANGED.dispatchedTo(this.aladinDiv, { fovX: fovX, fovY: fovY });
|
|
};
|
|
|
|
/**
|
|
* compute and set the norder corresponding to the current view resolution
|
|
*/
|
|
View.prototype.computeNorder = function () {
|
|
var norder = this.wasm.getNOrder();
|
|
|
|
this.realNorder = norder;
|
|
// here, we force norder to 3 (otherwise, the display is "blurry" for too long when zooming in)
|
|
if (this.fov <= 50 && norder <= 2) {
|
|
norder = 3;
|
|
}
|
|
|
|
this.curNorder = norder;
|
|
};
|
|
|
|
View.prototype.untaintCanvases = function () {
|
|
this.createCanvases();
|
|
createListeners(this);
|
|
this.fixLayoutDimensions();
|
|
};
|
|
|
|
View.prototype.setOverlayImageLayer = function (imageLayer, layer = "overlay") {
|
|
// set the view to the image layer object
|
|
// do the properties query if needed
|
|
imageLayer.setView(this);
|
|
|
|
// register its promise
|
|
this.imageLayersBeingQueried.set(layer, imageLayer);
|
|
|
|
this.addImageLayer(imageLayer, layer);
|
|
|
|
return imageLayer;
|
|
};
|
|
|
|
View.prototype._addLayer = function(imageLayer) {
|
|
const layerName = imageLayer.layer;
|
|
// Check whether this layer already exist
|
|
const idxOverlayLayer = this.overlayLayers.findIndex(overlayLayer => overlayLayer == layerName);
|
|
if (idxOverlayLayer == -1) {
|
|
// it does not exist so we add it to the stack
|
|
this.overlayLayers.push(layerName);
|
|
}
|
|
|
|
this.imageLayers.set(layerName, imageLayer);
|
|
|
|
ALEvent.HIPS_LAYER_ADDED.dispatchedTo(this.aladinDiv, { layer: imageLayer });
|
|
}
|
|
|
|
View.prototype.addImageLayer = function (imageLayer, layer) {
|
|
let self = this;
|
|
// start the query
|
|
const imageLayerPromise = imageLayer.query;
|
|
|
|
this.promises.push(imageLayerPromise);
|
|
|
|
// All image layer promises must be completed (fullfilled or rejected)
|
|
const task = {
|
|
message: 'Load layer: ' + imageLayer.name,
|
|
id: Utils.uuidv4(),
|
|
}
|
|
Promise.allSettled(this.promises)
|
|
.then(() => imageLayerPromise)
|
|
// The promise is resolved and we now have access
|
|
// to the image layer objet (whether it is an ImageSurvey or an ImageFITS)
|
|
.then((imageLayer) => {
|
|
// Add to the backend
|
|
const promise = imageLayer.add(layer);
|
|
ALEvent.FETCH.dispatchedTo(document, {task});
|
|
|
|
return promise;
|
|
})
|
|
.then((imageLayer) => {
|
|
// If the image layer has successfuly been added
|
|
this.empty = false;
|
|
|
|
if (imageLayer.children) {
|
|
imageLayer.children.forEach((imageLayer) => {
|
|
this._addLayer(imageLayer);
|
|
})
|
|
} else {
|
|
this._addLayer(imageLayer);
|
|
}
|
|
|
|
// change the view frame in case we have a planetary hips loaded
|
|
if (imageLayer.hipsBody) {
|
|
if (this.options.showFrame) {
|
|
this.aladin.setFrame('J2000d');
|
|
}
|
|
}
|
|
})
|
|
.catch((e) => {
|
|
// remove it from the cache
|
|
delete ImageSurvey.cache[imageLayer.id]
|
|
delete ImageFITS.cache[imageLayer.id]
|
|
|
|
throw e;
|
|
})
|
|
.finally(() => {
|
|
// Loading state is over
|
|
ALEvent.RESOURCE_FETCHED.dispatchedTo(document, {task});
|
|
|
|
self.imageLayersBeingQueried.delete(layer);
|
|
|
|
// Remove the settled promise
|
|
let idx = this.promises.findIndex(p => p == imageLayerPromise);
|
|
this.promises.splice(idx, 1);
|
|
|
|
const noMoreLayersToWaitFor = this.promises.length === 0;
|
|
|
|
if (noMoreLayersToWaitFor) {
|
|
if (self.empty) {
|
|
// no promises to launch!
|
|
//self.aladin.setBaseImageLayer(self.aladin.createImageSurvey(ImageSurvey.DEFAULT_SURVEY_ID));
|
|
} else {
|
|
// there is surveys that have been queried
|
|
// rename the first overlay layer to "base"
|
|
self.renameLayer(this.overlayLayers[0], "base");
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
// The survey at layer must have been added to the view!
|
|
View.prototype.renameLayer = function(layer, newLayer) {
|
|
if (layer === newLayer) {
|
|
return;
|
|
}
|
|
|
|
// Throw an exception if either the first or the second layers are not in the stack
|
|
this.wasm.renameLayer(layer, newLayer);
|
|
|
|
let imageLayer = this.imageLayers.get(layer);
|
|
imageLayer.layer = newLayer;
|
|
|
|
// Change in overlaylayers
|
|
const idx = this.overlayLayers.findIndex(overlayLayer => overlayLayer == layer);
|
|
this.overlayLayers[idx] = newLayer;
|
|
// Change in imageLayers
|
|
this.imageLayers.delete(layer);
|
|
this.imageLayers.set(newLayer, imageLayer);
|
|
|
|
// Change the selected layer if this is the one renamed
|
|
/*if (this.selectedLayer === layer) {
|
|
this.selectedLayer = newLayer;
|
|
}*/
|
|
|
|
// Tell the layer hierarchy has changed
|
|
ALEvent.HIPS_LAYER_RENAMED.dispatchedTo(this.aladinDiv, { layer, newLayer });
|
|
}
|
|
|
|
View.prototype.swapLayers = function(firstLayer, secondLayer) {
|
|
// Throw an exception if either the first or the second layers are not in the stack
|
|
this.wasm.swapLayers(firstLayer, secondLayer);
|
|
|
|
// Swap in overlaylayers
|
|
const idxFirstLayer = this.overlayLayers.findIndex(overlayLayer => overlayLayer == firstLayer);
|
|
const idxSecondLayer = this.overlayLayers.findIndex(overlayLayer => overlayLayer == secondLayer);
|
|
|
|
const tmp = this.overlayLayers[idxFirstLayer];
|
|
this.overlayLayers[idxFirstLayer] = this.overlayLayers[idxSecondLayer];
|
|
this.overlayLayers[idxSecondLayer] = tmp;
|
|
|
|
// Tell the layer hierarchy has changed
|
|
ALEvent.HIPS_LAYER_SWAP.dispatchedTo(this.aladinDiv, { firstLayer: firstLayer, secondLayer: secondLayer });
|
|
}
|
|
|
|
View.prototype.removeImageLayer = function (layer) {
|
|
// Get the survey to remove to dissociate it from the view
|
|
let imageLayer = this.imageLayers.get(layer);
|
|
if (imageLayer === undefined) {
|
|
// there is nothing to remove
|
|
return;
|
|
}
|
|
|
|
// Update the backend
|
|
if (imageLayer.added) {
|
|
this.wasm.removeLayer(layer);
|
|
}
|
|
|
|
// Get the survey to remove to dissociate it from the view
|
|
imageLayer.added = false;
|
|
// Delete it
|
|
this.imageLayers.delete(layer);
|
|
|
|
const idxOverlaidLayer = this.overlayLayers.findIndex(overlaidLayer => overlaidLayer == layer);
|
|
if (idxOverlaidLayer == -1) {
|
|
// layer not found
|
|
return;
|
|
}
|
|
|
|
// Remove it from the layer stack
|
|
this.overlayLayers.splice(idxOverlaidLayer, 1);
|
|
|
|
if (this.overlayLayers.length === 0) {
|
|
this.empty = true;
|
|
} else if (this.selectedLayer === layer) {
|
|
// If the layer removed was selected then we select the base layer
|
|
this.selectedLayer = 'base';
|
|
}
|
|
|
|
ALEvent.HIPS_LAYER_REMOVED.dispatchedTo(this.aladinDiv, { layer });
|
|
|
|
// check if there are no more surveys
|
|
const noMoreLayersToWaitFor = this.promises.length === 0;
|
|
if (noMoreLayersToWaitFor && this.empty) {
|
|
// no promises to launch!
|
|
const dssId = Aladin.DEFAULT_OPTIONS.survey;
|
|
this.aladin.setBaseImageLayer(dssId);
|
|
}
|
|
};
|
|
|
|
View.prototype.setHiPSUrl = function (pastUrl, newUrl) {
|
|
try {
|
|
this.wasm.setHiPSUrl(pastUrl, newUrl);
|
|
} catch(e) {
|
|
console.error(e)
|
|
}
|
|
}
|
|
|
|
View.prototype.getImageLayer = function (layer = "base") {
|
|
let imageLayerQueried = this.imageLayersBeingQueried.get(layer);
|
|
let imageLayer = this.imageLayers.get(layer);
|
|
|
|
return imageLayer || imageLayerQueried;
|
|
};
|
|
|
|
View.prototype.requestRedraw = function () {
|
|
this.needRedraw = true;
|
|
};
|
|
|
|
View.prototype.setProjection = function (projName) {
|
|
if (!ProjectionEnum[projName]) {
|
|
console.warn(projName + " is not a valid projection.")
|
|
projName = 'SIN'
|
|
}
|
|
|
|
if (this.projection && this.projection.id === ProjectionEnum[projName].id) {
|
|
return;
|
|
}
|
|
|
|
this.projection = ProjectionEnum[projName];
|
|
|
|
// Change the projection here
|
|
this.wasm.setProjection(projName);
|
|
this.updateZoomState();
|
|
|
|
this.requestRedraw();
|
|
};
|
|
|
|
View.prototype.changeFrame = function (cooFrame) {
|
|
this.cooFrame = cooFrame;
|
|
|
|
// Set the new frame to the backend
|
|
if (this.cooFrame.system == CooFrameEnum.SYSTEMS.GAL) {
|
|
this.wasm.setCooSystem(Aladin.wasmLibs.core.CooSystem.GAL);
|
|
}
|
|
else if (this.cooFrame.system == CooFrameEnum.SYSTEMS.J2000) {
|
|
this.wasm.setCooSystem(Aladin.wasmLibs.core.CooSystem.ICRS);
|
|
}
|
|
|
|
// Set the grid label format
|
|
if (this.cooFrame.label == "J2000d") {
|
|
this.setGridConfig({fmt: "HMS"});
|
|
}
|
|
else {
|
|
this.setGridConfig({fmt: "DMS"});
|
|
}
|
|
|
|
// Get the new view center position (given in icrs)
|
|
this.updateCenter();
|
|
|
|
ALEvent.FRAME_CHANGED.dispatchedTo(this.aladinDiv, {cooFrame: this.cooFrame});
|
|
|
|
this.requestRedraw();
|
|
};
|
|
|
|
View.prototype.updateCenter = function() {
|
|
const [ra, dec] = this.wasm.getCenter();
|
|
this.viewCenter.lon = ra;
|
|
this.viewCenter.lat = dec;
|
|
}
|
|
|
|
View.prototype.showHealpixGrid = function (show) {
|
|
this.displayHpxGrid = show;
|
|
|
|
if (!this.displayHpxGrid) {
|
|
this.mustClearCatalog = true;
|
|
}
|
|
|
|
this.requestRedraw();
|
|
};
|
|
|
|
View.prototype.showSurvey = function (show) {
|
|
this.getImageLayer().setAlpha(show ? 1.0 : 0.0);
|
|
|
|
this.requestRedraw();
|
|
};
|
|
|
|
View.prototype.showCatalog = function (show) {
|
|
this.displayCatalog = show;
|
|
|
|
if (!this.displayCatalog) {
|
|
this.mustClearCatalog = true;
|
|
}
|
|
this.requestRedraw();
|
|
};
|
|
|
|
/**
|
|
*
|
|
* @API Point to a specific location in ICRS
|
|
*
|
|
* @param ra ra expressed in ICRS J2000 frame
|
|
* @param dec dec expressed in ICRS J2000 frame
|
|
* @param options
|
|
*
|
|
*/
|
|
View.prototype.pointTo = function (ra, dec) {
|
|
ra = parseFloat(ra);
|
|
dec = parseFloat(dec);
|
|
|
|
if (isNaN(ra) || isNaN(dec)) {
|
|
return;
|
|
}
|
|
this.viewCenter.lon = ra;
|
|
this.viewCenter.lat = dec;
|
|
//this.updateLocation({lon: this.viewCenter.lon, lat: this.viewCenter.lat});
|
|
|
|
// Put a javascript code here to do some animation
|
|
this.wasm.setCenter(this.viewCenter.lon, this.viewCenter.lat);
|
|
|
|
ALEvent.POSITION_CHANGED.dispatchedTo(this.aladin.aladinDiv, this.viewCenter);
|
|
|
|
this.requestRedraw();
|
|
|
|
var self = this;
|
|
setTimeout(function () { self.refreshProgressiveCats(); }, 1000);
|
|
// Apply position changed callback after the move
|
|
self.throttledPositionChanged();
|
|
|
|
// hide the popup if it is open
|
|
this.aladin.hidePopup();
|
|
};
|
|
|
|
View.prototype.makeUniqLayerName = function (name) {
|
|
if (!this.layerNameExists(name)) {
|
|
return name;
|
|
}
|
|
for (var k = 1; ; ++k) {
|
|
var newName = name + '_' + k;
|
|
if (!this.layerNameExists(newName)) {
|
|
return newName;
|
|
}
|
|
}
|
|
};
|
|
View.prototype.layerNameExists = function (name) {
|
|
var c = this.allOverlayLayers;
|
|
for (var k = 0; k < c.length; k++) {
|
|
if (name == c[k].name) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
View.prototype.removeLayers = function () {
|
|
this.catalogs = [];
|
|
this.overlays = [];
|
|
this.mocs = [];
|
|
this.allOverlayLayers = [];
|
|
this.requestRedraw();
|
|
};
|
|
|
|
View.prototype.removeLayer = function (layer) {
|
|
let indexToDelete = this.allOverlayLayers.indexOf(layer);
|
|
this.allOverlayLayers.splice(indexToDelete, 1);
|
|
|
|
if (layer.type == 'catalog' || layer.type == 'progressivecat') {
|
|
indexToDelete = this.catalogs.indexOf(layer);
|
|
this.catalogs.splice(indexToDelete, 1);
|
|
}
|
|
else if (layer.type == 'moc') {
|
|
indexToDelete = this.mocs.indexOf(layer);
|
|
|
|
let moc = this.mocs.splice(indexToDelete, 1);
|
|
// remove from aladin lite backend
|
|
moc[0].delete();
|
|
}
|
|
else if (layer.type == 'overlay') {
|
|
indexToDelete = this.overlays.indexOf(layer);
|
|
this.overlays.splice(indexToDelete, 1);
|
|
}
|
|
|
|
ALEvent.GRAPHIC_OVERLAY_LAYER_REMOVED.dispatchedTo(this.aladinDiv, { layer: layer });
|
|
|
|
this.mustClearCatalog = true;
|
|
this.requestRedraw();
|
|
};
|
|
|
|
View.prototype.addCatalog = function (catalog) {
|
|
catalog.name = this.makeUniqLayerName(catalog.name);
|
|
this.allOverlayLayers.push(catalog);
|
|
this.catalogs.push(catalog);
|
|
if (catalog.type == 'catalog') {
|
|
catalog.setView(this);
|
|
}
|
|
else if (catalog.type == 'progressivecat') {
|
|
catalog.init(this);
|
|
}
|
|
};
|
|
|
|
View.prototype.addOverlay = function (overlay) {
|
|
overlay.name = this.makeUniqLayerName(overlay.name);
|
|
this.overlays.push(overlay);
|
|
this.allOverlayLayers.push(overlay);
|
|
overlay.setView(this);
|
|
};
|
|
|
|
View.prototype.addMOC = function (moc) {
|
|
moc.name = this.makeUniqLayerName(moc.name);
|
|
moc.setView(this);
|
|
};
|
|
|
|
// update objLookup, lookup table
|
|
View.prototype.updateObjectsLookup = function () {
|
|
this.objLookup = [];
|
|
|
|
var cat, sources, s, xRounded, yRounded;
|
|
if (this.catalogs) {
|
|
for (var k = 0; k < this.catalogs.length; k++) {
|
|
cat = this.catalogs[k];
|
|
if (!cat.isShowing) {
|
|
continue;
|
|
}
|
|
sources = cat.getSources();
|
|
for (var l = 0; l < sources.length; l++) {
|
|
s = sources[l];
|
|
if (!s.isShowing || !s.x || !s.y || cat.readOnly) {
|
|
continue;
|
|
}
|
|
|
|
xRounded = Math.round(s.x);
|
|
yRounded = Math.round(s.y);
|
|
|
|
if (typeof this.objLookup[xRounded] === 'undefined') {
|
|
this.objLookup[xRounded] = [];
|
|
}
|
|
if (typeof this.objLookup[xRounded][yRounded] === 'undefined') {
|
|
this.objLookup[xRounded][yRounded] = [];
|
|
}
|
|
this.objLookup[xRounded][yRounded].push(s);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
View.prototype.closestFootprints = function (footprints, ctx, x, y) {
|
|
if (!footprints) {
|
|
return null;
|
|
}
|
|
|
|
let closest = null;
|
|
|
|
footprints.forEach((footprint) => {
|
|
// Hidden footprints are not considered
|
|
let lineWidth = footprint.getLineWidth();
|
|
|
|
footprint.setLineWidth(10.0);
|
|
if (footprint.isShowing && footprint.isInStroke(ctx, this, x, y)) {
|
|
closest = footprint;
|
|
}
|
|
footprint.setLineWidth(lineWidth);
|
|
|
|
if (closest) {
|
|
return closest;
|
|
}
|
|
})
|
|
|
|
return closest;
|
|
};
|
|
|
|
// return closest object within a radius of maxRadius pixels. maxRadius is an integer
|
|
View.prototype.closestObjects = function (x, y, maxRadius) {
|
|
// footprint selection code adapted from Fabrizio Giordano dev. from Serco for ESA/ESDC
|
|
var overlay;
|
|
var canvas = this.catalogCanvas;
|
|
var ctx = canvas.getContext("2d");
|
|
// this makes footprint selection easier as the catch-zone is larger
|
|
//let pastLineWidth = ctx.lineWidth;
|
|
|
|
if (this.overlays) {
|
|
for (var k = 0; k < this.overlays.length; k++) {
|
|
overlay = this.overlays[k];
|
|
|
|
let closest = this.closestFootprints(overlay.overlayItems, ctx, x, y);
|
|
if (closest) {
|
|
//ctx.lineWidth = pastLineWidth;
|
|
return [closest];
|
|
}
|
|
}
|
|
}
|
|
|
|
// Catalogs can also have footprints
|
|
if (this.catalogs) {
|
|
for (var k = 0; k < this.catalogs.length; k++) {
|
|
let catalog = this.catalogs[k];
|
|
|
|
let closest = this.closestFootprints(catalog.footprints, ctx, x, y);
|
|
if (closest) {
|
|
//ctx.lineWidth = pastLineWidth;
|
|
return [closest];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!this.objLookup) {
|
|
//ctx.lineWidth = pastLineWidth;
|
|
return null;
|
|
}
|
|
|
|
//ctx.lineWidth = pastLineWidth;
|
|
|
|
var closest, dist;
|
|
for (var r = 0; r <= maxRadius; r++) {
|
|
closest = dist = null;
|
|
for (var dx = -maxRadius; dx <= maxRadius; dx++) {
|
|
if (!this.objLookup[x + dx]) {
|
|
continue;
|
|
}
|
|
for (var dy = -maxRadius; dy <= maxRadius; dy++) {
|
|
if (this.objLookup[x + dx][y + dy]) {
|
|
var d = dx * dx + dy * dy;
|
|
if (!closest || d < dist) {
|
|
closest = this.objLookup[x + dx][y + dy];
|
|
dist = d;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (closest) {
|
|
return closest;
|
|
}
|
|
}
|
|
return null;
|
|
};
|
|
|
|
return View;
|
|
})();
|