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Diffstat (limited to 'tools/mmd/orbtrak.js')
| -rw-r--r-- | tools/mmd/orbtrak.js | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/tools/mmd/orbtrak.js b/tools/mmd/orbtrak.js new file mode 100644 index 0000000..c2582bd --- /dev/null +++ b/tools/mmd/orbtrak.js @@ -0,0 +1,298 @@ +/****************************************************************************
+* OrbTrak: A satellite orbit visualization library *
+* Copyright Andrew T. West, 2008 *
+* Last update: 07-Jun-2008 *
+*****************************************************************************
+* *
+* This program is free software; you can redistribute it and/or modify it *
+* under the terms of the GNU General Public License as published by the *
+* Free Software Foundation; either version 2 of the License or any later *
+* version. *
+* *
+* This program is distributed in the hope that it will be useful, *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
+* General Public License for more details. *
+* *
+*****************************************************************************/
+
+// orbtrak.js and predictlib.js both work for one satellite now
+// Jogi, 2011-08-22
+
+var Orb =
+ {
+ satelliteMarkers: new Array(),
+ satellitePoint: new Object (),
+ satLayer: new OpenLayers.Layer.Vector ("satLayer"),
+ homeLayer: new OpenLayers.Layer.Vector ("homeLayer"),
+ trackLayer: new OpenLayers.Layer.Vector ("trackLayer"),
+ track: new Array (),
+ from: new OpenLayers.Projection ("EPSG:4326"),
+ to: new OpenLayers.Projection ("EPSG:900913"),
+
+ startOSMTracking: function (minutes, longitude, latitude, altitude, name)
+ {
+ PLib.InitializeData();
+ PLib.configureGroundStation(latitude, longitude, altitude, name);
+ document.getElementById ("gsName").innerHTML = name;
+ document.getElementById ("gsLongitude").innerHTML = longitude;
+ document.getElementById ("gsLatitude").innerHTML = latitude;
+ document.getElementById ("gsAltitude").innerHTML = altitude;
+ Orb.createOSMSatellite ();
+
+ var map = new OpenLayers.Map ("osm");
+ map.addLayers ([new OpenLayers.Layer.OSM (), Orb.trackLayer, Orb.satLayer, Orb.homeLayer]);
+ map.zoomTo (1);
+
+ var satStyle = {fillColor: "#FFED00", pointRadius: 3, stroke: false};
+ var homeStyle = {fillColor: "#00ff00", pointRadius: 3, stroke: false};
+ var home = new OpenLayers.LonLat (longitude, latitude).transform (Orb.from, Orb.to);
+
+ Orb.createSatelliteTrack (minutes);
+ Orb.homeLayer.addFeatures ([
+ new OpenLayers.Feature.Vector (
+ new OpenLayers.Geometry.Point (home.lon, home.lat),
+ null, homeStyle)]);
+ // map.zoomToMaxExtent ();
+ Orb.satLayer.addFeatures ([
+ new OpenLayers.Feature.Vector (Orb.satellitePoint,
+ null, satStyle)]);
+ setTimeout ("Orb.updateOSMSatellite ()", document.getElementById ("refresh").value);
+ },
+
+ createSatelliteTrack: function (minutes)
+ {
+ if (document.getElementById ("previewMinutes") != null)
+ minutes = document.getElementById ("previewMinutes").value;
+ Orb.trackLayer.destroyFeatures ();
+ var curve = new Array ();
+ var points = new Array ();
+ var track = PLib.calculateTrack (minutes);
+ var lineStyle = {strokeColor: '#003366', strokeOpacity: 1, strokeWidth: 1};
+ var last = "east";
+
+ for (var i = 0; i < track.length; i++)
+ {
+ var lonlat = new OpenLayers.LonLat (track[i][0], track[i][1]).transform (Orb.from, Orb.to);
+ var lon = "" + track[i][0];
+ if (lon.substring (0, 1) == "-")
+ {
+ if (last == "east")
+ {
+ curve.push (new OpenLayers.Feature.Vector (new OpenLayers.Geometry.LineString (points), null, lineStyle))
+ points = new Array ();
+ }
+ last = "west";
+ }
+ else
+ last = "east";
+ points.push (new OpenLayers.Geometry.Point (lonlat.lon, lonlat.lat));
+ }
+ curve.push (new OpenLayers.Feature.Vector (new OpenLayers.Geometry.LineString (points), null, lineStyle))
+ Orb.trackLayer.addFeatures (curve);
+ },
+
+ updateOSMSatellite: function ()
+ {
+ var satInfo;
+ var satellites = Orb.satLayer.features;
+
+ satInfo = PLib.QuickFind (PLib.sat.name);
+ var pos = new OpenLayers.LonLat (satInfo.longitude, satInfo.latitude).transform (Orb.from, Orb.to);
+ satellites[0].move (pos);
+ Orb.printSatellite (satInfo);
+ setTimeout ("Orb.updateOSMSatellite ()", document.getElementById ("refresh").value);
+ },
+
+ createOSMSatellite: function ()
+ {
+ var satInfo;
+ satInfo = PLib.QuickFind (PLib.sat.name);
+ var pos = new OpenLayers.LonLat (satInfo.longitude, satInfo.latitude).transform (Orb.from, Orb.to);
+ Orb.satellitePoint = new OpenLayers.Geometry.Point (pos.lon, pos.lat);
+ },
+
+ startTracking: function(map, homeLat, homeLng)
+ {
+ Orb.map = map;
+ Orb.crossBrowserSetStyle(map, "background-image: url(orbimages/world.jpg); overflow: hidden;", true);
+
+ var frag = document.createDocumentFragment();
+ var div = document.createElement("div");
+ div.id = "home";
+ Orb.crossBrowserSetStyle(div, "position:relative; width: 24px; height: 24px; background-image: url(orbimages/home.gif);", false);
+ frag.appendChild(div);
+ Orb.map.appendChild(frag);
+ Orb.home = document.getElementById("home");
+
+ PLib.InitializeData();
+ Orb.setHomeCoordinates(homeLat, homeLng);
+ Orb.createSatelliteMarkers();
+ Orb.updateSatellites();
+ },
+
+ setHomeCoordinates: function(homeLat, homeLng)
+ {
+ PLib.configureGroundStation(homeLat, homeLng);
+
+ Orb.home.style.top = ((-homeLat + 90) * 1.5 - 12.0) + "px";
+ Orb.home.style.left = ((parseInt(homeLng) + 180) * 1.5 - 12.0) + "px";
+ },
+
+ crossBrowserSetStyle: function(element, css, append)
+ {
+ var obj, attributeName;
+ var useStyleObject = element.style.setAttribute;
+
+ obj = useStyleObject ? element.style : element;
+ attributeName = useStyleObject ? "cssText" : "style";
+
+ if (append)
+ css += obj.getAttribute(attributeName);
+
+ obj.setAttribute(attributeName, css);
+ },
+
+ createOneMarker: function(txt)
+ {
+ var frag = document.createDocumentFragment();
+ var markerCount = Orb.satelliteMarkers.length;
+
+ var div = document.createElement("div");
+ div.id = "satelliteMarker" + markerCount;
+ Orb.crossBrowserSetStyle(div, "position:absolute; width: 24px; height: 24px; background-image: url(orbimages/saticon.gif);", false);
+ var innerDiv = document.createElement("div");
+ Orb.crossBrowserSetStyle(innerDiv, "position:absolute; left: 7px; top: 5px;");
+ var txt = document.createTextNode(txt);
+
+ innerDiv.appendChild(txt);
+ div.appendChild(innerDiv);
+ frag.appendChild(div);
+ Orb.map.appendChild(frag);
+
+ Orb.satelliteMarkers[markerCount] = document.getElementById(div.id)
+ },
+
+ createSatelliteMarkers: function()
+ {
+ for (var i = 1; i <= PLib.sat.length; i++)
+ Orb.createOneMarker(i);
+ },
+
+ updateSatellites: function()
+ {
+ var satInfo;
+
+ for (var i = 0; i < PLib.sat.length; i++)
+ {
+ satInfo = PLib.QuickFind(PLib.sat[i].name);
+
+ Orb.satelliteMarkers[i].style.top = ((-satInfo.latitude + 90) * 1.5 - 12.0) + "px";
+ Orb.satelliteMarkers[i].style.left = ((satInfo.longitude + 180) * 1.5 - 12.0) + "px";
+ Orb.printSatellite (satInfo);
+ }
+
+ setTimeout("Orb.updateSatellites()", 1000);
+ },
+
+ // added by Jogi
+ // 2011-08-21
+ printSatellite: function (satInfo)
+ {
+ document.getElementById ("longitude").innerHTML = satInfo.longitude;
+ document.getElementById ("latitude").innerHTML = satInfo.latitude;
+ document.getElementById ("elevation").innerHTML = satInfo.elevation;
+ document.getElementById ("azimuth").innerHTML = satInfo.azimuth;
+ document.getElementById ("altitude").innerHTML = satInfo.altitude;
+ },
+
+ createCell: function(tr, className, txt)
+ {
+ var td = document.createElement("td");
+ td.className = className;
+ txt = document.createTextNode(txt);
+ td.appendChild(txt);
+ tr.appendChild(td);
+ },
+
+ createHeaderColumn: function(tr, txt)
+ {
+ var th = document.createElement("th");
+ th.className = "orb-header";
+ txt = document.createTextNode(txt);
+ th.appendChild(txt);
+ tr.appendChild(th);
+ },
+
+ generateTable: function(divTable)
+ {
+ var tr, visibilityText, detailClassName;
+ var frag = document.createDocumentFragment();
+ var satInfoColl = PLib.getTodaysPasses();
+
+ while (divTable.childNodes.length > 0)
+ {
+ divTable.removeChild(divTable.firstChild);
+ }
+
+ var tbl = document.createElement("table");
+ Orb.crossBrowserSetStyle(tbl, "border-collapse: collapse; margin-left: auto; margin-right: auto;", false);
+
+ var thead = document.createElement("thead");
+ tr = document.createElement("tr");
+
+ Orb.createHeaderColumn(tr, '# on Map');
+ Orb.createHeaderColumn(tr, 'Name');
+ Orb.createHeaderColumn(tr, 'Pass #');
+ Orb.createHeaderColumn(tr, 'Date');
+ Orb.createHeaderColumn(tr, 'Local Time');
+ Orb.createHeaderColumn(tr, 'Peak Elev.');
+ Orb.createHeaderColumn(tr, 'Azimuth');
+ Orb.createHeaderColumn(tr, 'Range (km)');
+ Orb.createHeaderColumn(tr, 'Visibility');
+
+ thead.appendChild(tr);
+ tbl.appendChild(thead);
+
+ var tbody = document.createElement("tbody");
+
+ for (var i = 0; i < satInfoColl.length; i++)
+ {
+ tr = document.createElement("tr");
+
+ detailClassName = satInfoColl[i].visibility == "+" ? "orb-detailVisible" : "orb-detail";
+
+ Orb.createCell(tr, detailClassName, satInfoColl[i].number);
+ Orb.createCell(tr, detailClassName, satInfoColl[i].name);
+ Orb.createCell(tr, detailClassName, satInfoColl[i].passNo);
+ Orb.createCell(tr, detailClassName, PLib.formatDateOnly(satInfoColl[i].dateTimeStart));
+ Orb.createCell(tr, detailClassName, PLib.formatTimeOnly(satInfoColl[i].dateTimeStart) + " - " + PLib.formatTimeOnly(satInfoColl[i].dateTimeEnd));
+ Orb.createCell(tr, detailClassName, satInfoColl[i].peakElevation + "\u00B0");
+ Orb.createCell(tr, detailClassName, satInfoColl[i].riseAzimuth + ", " + satInfoColl[i].peakAzimuth + ", " + satInfoColl[i].decayAzimuth);
+ Orb.createCell(tr, detailClassName, satInfoColl[i].riseRange + ", " + satInfoColl[i].peakRange + ", " + satInfoColl[i].decayRange);
+
+ switch(satInfoColl[i].visibility)
+ {
+ case "+":
+ visibilityText = 'Visible';
+ break;
+ case "*":
+ visibilityText = 'Not Visible';
+ break;
+ default:
+ visibilityText = 'Eclipsed';
+ }
+
+ Orb.createCell(tr, detailClassName, visibilityText);
+
+ tbody.appendChild(tr);
+ }
+
+ tbl.appendChild(tbody);
+ frag.appendChild(tbl);
+ divTable.appendChild(frag);
+ }
+ }
+
+// vim: ts=2 tw=0 expandtab
+// EOF
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