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add filter option for Catalog object #80

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This commit is contained in:
Matthieu Baumann
2023-06-06 10:26:37 +02:00
parent dbf8c8dbeb
commit 41f381ab2b
2 changed files with 48 additions and 0 deletions
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45
examples/al-catalog-filter.html Normal file
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@@ -0,0 +1,45 @@
<!doctype html>
<html>
<head>
</head>
<body>
<script src="https://code.jquery.com/jquery-1.10.1.min.js"></script>
<div id="aladin-lite-div" style="width: 1024px; height: 768px"></div>
Show sources with proper motion greater than:
<input id='slider' style='vertical-align:middle;width:60vw;' step='1' min='0' max='10' type='range' value='0'>
<span id='pmVal' >0 mas/yr</span><br><br><div id='aladin-lite-div' style='width: 500px;height: 500px;'></div>
<script type="module">
import A from '../src/js/A.js';
let aladin;
A.init.then(() => {
var pmThreshold = 0;
var slider = document.getElementById('slider');
slider.oninput = function() {
pmThreshold = this.value;
$('#pmVal').html(pmThreshold + ' mas/yr');
cat.reportChange();
}
var myFilterFunction = function(source) {
var hpmag = parseFloat(source.data['Hpmag']);
if (isNaN(hpmag)) {
return false;
}
return hpmag>pmThreshold;
}
aladin = A.aladin('#aladin-lite-div', {target: 'M 45', fov: 5});
var cat = A.catalogFromVizieR('I/311/hip2', 'M 45', 5, {onClick: 'showTable', filter: myFilterFunction});
aladin.addCatalog(cat);
});
</script>
</body>
</html>

3
src/js/Catalog.js
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@@ -61,6 +61,9 @@ export let Catalog = (function() {
this.raField = options.raField || undefined; // ID or name of the field holding RA
this.decField = options.decField || undefined; // ID or name of the field holding dec
// allows for filtering of sources
this.filterFn = options.filter || undefined; // TODO: do the same for catalog
this.fieldsClickedActions = {}; // callbacks when the user clicks on a cell in the measurement table associated
this.fields = undefined;