-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathplanetary-nebula.html
418 lines (359 loc) · 20.5 KB
/
planetary-nebula.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
<!DOCTYPE html>
<html lang="en-us">
<head>
<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-B13NZ97YS4"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() { dataLayer.push(arguments); }
gtag('js', new Date());
gtag('config', 'G-B13NZ97YS4');
</script>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="On this web page you can look at images of astronomical objects.">
<title>Space Safari</title>
<link href="https://fonts.googleapis.com/css?family=Faster+One" rel="stylesheet">
<link rel="stylesheet" href="https://unpkg.com/modern-css-reset/dist/reset.min.css" />
<link rel="stylesheet" href="./style.css">
<script type="module" src="./scriptAstro.js"></script>
</head>
<body>
<div class="container">
<header>
<h1>Space Safari</h1>
<nav>
<a class="menu-button" href="./index.html">Start</a>
<!-- <a class="menu-button" href="./d3-celestial.html">Skymap</a> -->
<label for="astro-type" class="astro-type">
<select id="astro-type">
<option value="">Type of object</option>
<option value="All objects">All objects</option>
<optgroup label="Galaxies">
<option value="Galaxy" class="optionGroup">Galaxies</option>
<option value="Group galaxy">Group of galaxies</option>
<option value="Elliptical galaxy">Elliptical galaxies</option>
<option value="Distant galaxy">Distant galaxy</option>
<option value="Dwarf galaxy">Dwarf galaxy</option>
<option value="Interacting galaxy">Interacting galaxies</option>
<option value="Irregular galaxy">Irregular galaxies</option>
<option value="Lenticular galaxy">Lenticular galaxy</option>
<option value="Quasar galaxy">Quasar</option>
<option value="Seyfert galaxy">Seyfert galaxy</option>
<option value="Spiral galaxy">Spiral galaxies</option>
</optgroup>
<optgroup label="Nebulae">
<option value="Nebula" class="optionGroup">Nebulae</option>
<option value="Dark nebula">Dark nebula</option>
<option value="Diffuse nebula">Diffuse nebula</option>
<option value="Emission nebula">Emission nebulae</option>
<option value="Planetary nebula">Planetary nebulae</option>
<option value="Reflection nebula">Reflection nebulae</option>
<option value="Star-forming nebula">Starforming nebulae</option>
<option value="Supernova-remnant nebula">Supernova remnant</option>
<option value="X-ray nebula">X-ray nebula</option>
</optgroup>
<optgroup label="Clusters">
<option value="Cluster" class="optionGroup">Clusters</option>
<option value="Globular cluster">Globular clusters</option>
<option value="Open cluster">Open clusters</option>
<option value="Star cluster">Star clouds</option>
<option value="Super-star cluster">Super star cluster
</option>
</optgroup>
</select>
</label>
<label for="astro-const" class="astro-const">
<select id="astro-const">
<option value="">Constellations</option>
<optgroup label="A">
<option value="Andromeda">Andromeda</option>
<option value="Antilia">Antilia</option>
<option value="Apus">Apus</option>
<option value="Ara">Ara</option>
<option value="Aries">Aries</option>
<option value="Aquarius">Aquarius</option>
<option value="Aquila">Aquila</option>
<option value="Auriga">Auriga</option>
</optgroup>
<optgroup label="B">
<option value="Boötes">Boötes</option>
</optgroup>
<optgroup label="C">
<option value="Caelum">Caelum</option>
<option value="Camelopardalis">Camelopardalis</option>
<option value="Cancer">Cancer</option>
<option value="Canes Venatici">Canes Venatici</option>
<option value="Canis Major">Canis Major</option>
<option value="Canis Minor">Canis Minor</option>
<option value="Capricornus">Capricornus</option>
<option value="Carina">Carina</option>
<option value="Cassiopeia">Cassiopeia</option>
<option value="Centaurus">Centaurus</option>
<option value="Cepheus">Cepheus</option>
<option value="Cetus">Cetus</option>
<option value="Chamaeleon">Chamaeleon</option>
<option value="Circinus">Circinus</option>
<option value="Columba">Columba</option>
<option value="Coma Berenices">Coma Berenices</option>
<option value="Corona Australis">Corona Australis</option>
<option value="Corvus">Corvus</option>
<option value="Crater">Crater</option>
<option value="Crux">Crux</option>
<option value="Cygnus">Cygnus</option>
</optgroup>
<optgroup label="D">
<option value="Delphinus">Delphinus</option>
<option value="Dorado">Dorado</option>
<option value="Draco">Draco</option>
</optgroup>
<optgroup label="E">
<option value="Equuleus">Equuleus</option>
<option value="Eridanus">Eridanus</option>
</optgroup>
<optgroup label="F">
<option value="Fornax">Fornax</option>
</optgroup>
<optgroup label="G">
<option value="Gemini">Gemini</option>
</optgroup>
<optgroup label="H">
<option value="Hercules">Hercules</option>
</optgroup>
<optgroup label="L">
<option value="Lacerta">Lacerta</option>
<option value="Lyra">Lyra</option>
</optgroup>
<optgroup label="O">
<option value="Ophiuchus">Ophiuchus</option>
</optgroup>
<optgroup label="P">
<option value="Pegasus">Pegasus</option>
</optgroup>
<optgroup label="S">
<option value="Sagitta">Sagitta</option>
<option value="Serpens Caput">Serpens Caput</option>
</optgroup>
<optgroup label="T">
<option value="Triangulum">Triangulum</option>
</optgroup>
<optgroup label="U">
<option value="Ursa Major">Ursa Major</option>
</optgroup>
<optgroup label="V">
<option value="Vulpecula">Vulpecula</option>
</optgroup>
<optgroup label="S">
<option value="Sculptor">Sculptor</option>
<option value="Sagitta">Sagitta</option>
</optgroup>
</select>
</label>
<label for="astro-dist" class="astro-dist">
<select id="astro-dist">
<option value="">Distance</option>
<optgroup label="A">
<option value="100">100 ly - 1 kly</option>
<option value="1000">1 kly - 10 kly</option>
<option value="10000">10 kly - 100 kly</option>
<option value="100000">100 kly - 1 Mly</option>
<option value="1000000">1 Mly - 10 Mly</option>
<option value="10000000">10 Mly - 100 Mly</option>
<option value="100000000">100 Mly - 1 Gly</option>
<option value="1000000000">1 Gly - 10 Gly</option>
</optgroup>
</select>
</label>
</nav>
</header>
<main>
<script type="module">
"use strict";
//import data from "./astroData.json" assert { type: "json" }; Do not work in FF
fetch("./astroData.json")
.then((res) => res.json())
.then((data) => {
// do stuff with the data
data.astroObject = data.astroObject.sort((a, b) => {
if (a.distance < b.distance) {
return -1;
}
});
const selectElementType = document.querySelector("#astro-type");
const selectElementConst = document.querySelector("#astro-const");
const selectElementDist = document.querySelector("#astro-dist");
let main = null;
let myH2 = null;
let mySection = null;
let selectedOption = "";
selectElementType.addEventListener("change", (event) => {
resetSelectElement(selectElementConst);
resetSelectElement(selectElementDist);
clearMainAndSelectOption();
populateType(selectedOption);
lazyLoadFunc();
});
selectElementConst.addEventListener("change", (event) => {
resetSelectElement(selectElementType);
resetSelectElement(selectElementDist);
clearMainAndSelectOption();
populateConst(selectedOption);
lazyLoadFunc();
});
selectElementDist.addEventListener("change", (event) => {
resetSelectElement(selectElementType);
resetSelectElement(selectElementConst);
clearMainAndSelectOption();
populateDist(selectedOption);
lazyLoadFunc();
});
function populateType(astroData) {
createH2inMain(astroData);
Object.entries(data.astroObject).forEach(([key, value]) => {
const words = value.type.split(" ");
if (words[1].toLowerCase() === astroData.toLowerCase()) {
createAstroElement(value);
} else if (value.type === astroData) {
createAstroElement(value);
} else if (astroData === "All objects") {
createAstroElement(value);
}
});
}
function populateConst(astroData) {
createH2inMain(astroData);
Object.entries(data.astroObject).forEach(([key, value]) => {
if (value.constellations === astroData) {
createAstroElement(value);
}
});
}
function populateDist(astroData) {
createH2inMainDistance(astroData);
Object.entries(data.astroObject).forEach(([key, value]) => {
let astroDataNumb = Number(astroData);
if (
value.distance >= Number(astroDataNumb) &&
value.distance <= Number(astroDataNumb) * 10
) {
createAstroElement(value);
}
});
}
function clearMainAndSelectOption() {
let node = document.querySelector("main");
node.querySelectorAll("*").forEach((n) => n.remove());
selectedOption = event.target.value;
}
function createH2inMain(astroData) {
main = document.querySelector("main");
myH2 = document.createElement("h2");
mySection = document.createElement("section");
myH2.textContent = astroData;
main.appendChild(myH2);
main.appendChild(mySection);
}
function createH2inMainDistance(astroData) {
main = document.querySelector("main");
myH2 = document.createElement("h2");
mySection = document.createElement("section");
myH2.textContent =
numberWithCommas(astroData) +
` ly to ` +
numberWithCommas(astroData * 10) +
` ly`;
main.appendChild(myH2);
main.appendChild(mySection);
}
function createAstroElement(value) {
const myFigure = document.createElement("figure");
const myImg = document.createElement("img");
const myFigcaption = document.createElement("figcaption");
const myA = document.createElement("a");
//myImg.src = `${value.url}`;
const imgValue = `${value.url}`;
const attr = document.createAttribute("data-src");
attr.value = imgValue;
myImg.setAttributeNode(attr);
//myImg.loading = `lazy`;
myImg.classList.add("lazy");
myImg.alt = `${value.id} ${value.name}`;
myFigcaption.textContent = ` ${value.type} in ${value.constellations
} at ${numberWithCommas(value.distance)} ly.`;
/* myA.title = `test`; */
myA.href = `${value.link}`;
myA.target = "_blank";
const linkText = document.createTextNode(`${value.id} ${value.name}.`);
mySection.appendChild(myFigure);
myFigure.appendChild(myImg);
myFigure.appendChild(myA);
myFigure.appendChild(myFigcaption);
myA.appendChild(linkText);
}
function resetSelectElement(selectElement) {
selectElement.selectedIndex = 0; //
}
function numberWithCommas(x) {
return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}
function lazyLoadFunc() {
// document.addEventListener("DOMContentLoaded", function () {
var lazyloadImages;
if ("IntersectionObserver" in window) {
lazyloadImages = document.querySelectorAll(".lazy");
var imageObserver = new IntersectionObserver(function (
entries,
observer
) {
entries.forEach(function (entry) {
if (entry.isIntersecting) {
var image = entry.target;
image.src = image.dataset.src;
image.classList.remove("lazy");
imageObserver.unobserve(image);
}
});
});
lazyloadImages.forEach(function (image) {
imageObserver.observe(image);
});
} else {
var lazyloadThrottleTimeout;
lazyloadImages = document.querySelectorAll(".lazy");
function lazyload() {
if (lazyloadThrottleTimeout) {
clearTimeout(lazyloadThrottleTimeout);
}
lazyloadThrottleTimeout = setTimeout(function () {
var scrollTop = window.pageYOffset;
lazyloadImages.forEach(function (img) {
if (img.offsetTop < window.innerHeight + scrollTop) {
img.src = img.dataset.src;
img.classList.remove("lazy");
}
});
if (lazyloadImages.length == 0) {
document.removeEventListener("scroll", lazyload);
window.removeEventListener("resize", lazyload);
window.removeEventListener("orientationChange", lazyload);
}
}, 20);
}
document.addEventListener("scroll", lazyload);
window.addEventListener("resize", lazyload);
window.addEventListener("orientationChange", lazyload);
}
//});
}
resetSelectElement(selectElementConst);
resetSelectElement(selectElementDist);
//clearMainAndSelectOption();
populateType("Planetary nebula");
lazyLoadFunc();
});
/* START lazy loading */
</script>
</main>
</div>
</body>
</html>