Add polar plot in observation view
Fabian P. Schmidt
Nikos Roussos
parent
16369919c5
commit
5ddb1b4050
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@ -1,4 +1,4 @@
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/* global WaveSurfer URI */
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/* global WaveSurfer URI satellite moment */
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$(document).ready(function() {
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'use strict';
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@ -108,6 +108,69 @@ $(document).ready(function() {
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var metadata = $('#json-renderer').data('json');
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$('#json-renderer').jsonViewer(metadata, {collapsed: true});
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// Draw orbit in polar plot
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var tleLine1 = $('svg#polar').data('tle1');
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var tleLine2 = $('svg#polar').data('tle2');
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var timeframe = {
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start: new Date($('svg#polar').data('timeframe-start')),
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end: new Date($('svg#polar').data('timeframe-end'))
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};
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const pi = Math.PI;
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const deg2rad = pi / 180.0;
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const rad2deg = 180 / pi;
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// Get the observer at lat/lon in RADIANS, altitude in km above ground (NOTE: BUG, should be elevation?)
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var observerGd = {
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longitude: $('svg#polar').data('groundstation-lon') * deg2rad,
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latitude: $('svg#polar').data('groundstation-lat') * deg2rad,
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height: $('svg#polar').data('groundstation-alt') / 1000
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};
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var polarGetXY = function(az, el) {
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var ret = new Object();
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ret.x = (90 - el) * Math.sin(az * deg2rad);
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ret.y = (el - 90) * Math.cos(az * deg2rad);
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return ret;
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};
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var polarOrbit = document.createElementNS('http://www.w3.org/2000/svg', 'path');
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polarOrbit.setAttributeNS(null, 'fill', 'none');
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polarOrbit.setAttributeNS(null, 'stroke', 'blue');
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polarOrbit.setAttributeNS(null, 'stroke-opacity', '1.0');
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polarOrbit.setAttributeNS(null, 'stroke-width', '2');
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// Initialize the satellite record
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var satrec = satellite.twoline2satrec(tleLine1, tleLine2);
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// Draw the orbit pass on the polar az/el plot
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var g = '';
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for (var t = moment(timeframe.start); t < moment(timeframe.end); t.add(20, 's')) {
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var positionAndVelocity = satellite.propagate(satrec, t.toDate());
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var gmst = satellite.gstime(t.toDate());
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var positionEci = positionAndVelocity.position;
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var positionEcf = satellite.eciToEcf(positionEci, gmst);
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var lookAngles = satellite.ecfToLookAngles(observerGd, positionEcf);
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var azimuth = lookAngles.azimuth * rad2deg,
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elevation = lookAngles.elevation * rad2deg;
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var coord = polarGetXY(azimuth, elevation);
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if (g == '') {
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// Start of line
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g += 'M';
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} else {
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// Continue line
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g += ' L';
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}
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g += coord.x + ' ' + coord.y;
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}
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polarOrbit.setAttribute('d', g);
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$('svg#polar').append(polarOrbit);
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// Hotkeys bindings
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$(document).bind('keyup', function(event){
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if (event.which == 88) {
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@ -179,6 +179,56 @@
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</span>
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</div>
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{% endif %}
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<div class="front-line">
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<span class="label label-default">Polar Plot</span>
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<span class="front-data">
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<div id="polar_plot">
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<svg
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xmlns="http://www.w3.org/2000/svg" version="1.1"
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id="polar"
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data-tle1="{{ observation.tle.tle1 }}"
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data-tle2="{{ observation.tle.tle2 }}"
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data-timeframe-start="{{ observation.start|date:"c" }}"
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data-timeframe-end="{{ observation.end|date:"c" }}"
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data-groundstation-lat="{{ observation.ground_station.lat }}"
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data-groundstation-lon="{{ observation.ground_station.lng }}"
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data-groundstation-alt="{{ observation.ground_station.alt }}"
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width="120px" height="120px"
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viewBox="-110 -110 220 220"
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overflow="hidden">
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<path
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fill="none" stroke="black" stroke-width="1"
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d="M 0 -95 v 190 M -95 0 h 190"
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/>
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<circle
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fill="none" stroke="black"
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cx="0" cy="0" r="30"
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/>
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<circle
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fill="none" stroke="black"
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cx="0" cy="0" r="60"
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/>
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<circle
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fill="none" stroke="black"
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cx="0" cy="0" r="90"
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/>
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<text x="-4" y="-96">
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N
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</text>
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<text x="-4" y="105">
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S
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</text>
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<text x="96" y="4">
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E
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</text>
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<text x="-106" y="4">
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W
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</text>
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</svg>
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</div>
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</span>
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</div>
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<div class="front-line">
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{% if observation.has_audio or observation.waterfall %}
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<span class="label label-default">Downloads</span>
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@ -336,6 +386,7 @@
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<script src="{% static 'lib/moment/min/moment.min.js' %}"></script>
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<script src="{% static 'lib/urijs/src/URI.min.js' %}"></script>
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<script src="{% static 'lib/jquery.json-viewer/json-viewer/jquery.json-viewer.js' %}"></script>
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<script src="{% static 'lib/satellite.js/dist/satellite.min.js' %}"></script>
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<script src="{% static 'js/utc.js' %}"></script>
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<script src="{% static 'js/observation_view.js' %}"></script>
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<script src="{% static 'js/satellite.js' %}"></script>
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