");
oVEMap.AddShape(shape);
oVEMap.SetCenter(CurrentCenter );
var isShowEcc = $("ShowEcc").checked;
var CircleIncr = parseInt($("CompSpeed").value)
var LightSpeed = ScaleFactor * 299792458 * 3.600; // m/sec -- > km/hr
var Color1 = new VEColor(255,0,255,.5) ;
var Color2 = new VEColor(255,0,153,.5) ;
var Color3 = new VEColor(255,0,0,.5) ;
var Color4 = new VEColor(255,153,0,.5) ;
var Color5 = new VEColor(255,255,0,.5) ;
var Color6 = new VEColor(0,255,0,.5) ;
var Color7 = new VEColor(53,53,255,.5) ;
var Color8 = new VEColor(0,0,153,.5) ;
var Color9 = new VEColor(102,53,153,.5) ;
var Color10 = new VEColor(153,102,255,.5) ;
var Color11 = new VEColor(255,0,255,.5) ;
oMercury.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color1);
oVenus.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color2);
oEarth.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color3);
oMars.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color4);
oVesta.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color5);
oCeres.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color6);
oJupiter.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color7);
oSaturn.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color8);
oUranus.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color9);
oNeptune.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color10);
oPluto.Show ( CurrentCenter, ScaleFactor, isShowEcc, CircleIncr, Color11);
$("tdMessage").innerHTML = " light speed= " + (Math.round(LightSpeed*100.0)/100) + " kph"
setTimeout("Animate()", 3000);
}
function Animate()
{
// move planets around sun
var Incr = parseInt($("Speed").value);
if (Incr!=0)
{
Day = Day + Incr
Day = Day % oPluto.DaysPerYear; // keep count from getting too large
$("tdDay").innerText = Math.round(Day);
oMercury.Move(Day);
oVenus.Move(Day);
oEarth.Move(Day);
oMars.Move(Day);
oVesta.Move(Day);
oCeres.Move(Day);
oJupiter.Move(Day);
oSaturn.Move(Day);
oUranus.Move(Day);
oNeptune.Move(Day);
oPluto.Move(Day);
} else Day=0;
setTimeout("Animate()",100);
}
function Resize(){
// If the user resizes the window this will resize all the layers
var Height = GetScreenHeight()-50;
var Width = GetScreenWidth();
var oDiv = $("MapPanel");
oDiv.style.width = Width + "px";
oDiv.style.height = Height + "px";
onresize = Resize;
}
function Planet(title, size, distance, ecc, daysperyear)
{
// Object representing a single planet's characteristics and methods
this.Size = size;
this.Distance = distance;
this.Ecc = ecc;
this.DaysPerYear = daysperyear;
this.ID = 0;
this.Title = title;
this.CenterPt = null;
this.CircleIncr = 6;
this.ScaleFactor = 1;
var EarthRadius = 6371; // earth's mean radius KM (3959 mi)
this.Move = function (Day)
{
// move a planet to it's orbital position after "Day" days
var Angle = 2*Math.PI*(Day/this.DaysPerYear)
var lat = (this.CenterPt.Latitude * Math.PI) / 180; //rad
var lon = (this.CenterPt.Longitude * Math.PI) / 180; //rad
var d = (this.Distance*this.ScaleFactor)/EarthRadius; // d = angular distance covered on earth's surface
var pt = oVEMap.GetCenter();
pt.Latitude = Math.asin(Math.sin(lat)*Math.cos(d) + Math.cos(lat)*Math.sin(d)*Math.cos(Angle));
pt.Longitude = ((lon + Math.atan2(Math.sin(Angle)*Math.sin(d)*Math.cos(lat), Math.cos(d)-Math.sin(lat)*Math.sin(pt.Latitude))) * 180) / Math.PI;
pt.Latitude = (pt.Latitude * 180) / Math.PI;
var Shape = oVEMap.GetShapeByID(this.ID)
if(Shape)Shape.SetPoints(pt)
}
this.Show = function (CntrPt, Scale, isShowEcc, CircleIncr, Color)
{
this.CenterPt = CntrPt;
this.CircleIncr = CircleIncr;
this.ScaleFactor =Scale;
var lat = (CntrPt.Latitude * Math.PI) / 180; //rad
var lon = (CntrPt.Longitude * Math.PI) / 180; //rad
var d = (this.Distance*this.ScaleFactor)/EarthRadius; // d = angular distance covered on earth's surface
var SizeTxt = Math.round(1000000.0 * this.ScaleFactor * this.Size) + " mm";
var pt = new VELatLong(0,0)
brng = 0*2*Math.PI; //rad
pt.Latitude = Math.asin(Math.sin(lat)*Math.cos(d) + Math.cos(lat)*Math.sin(d)*Math.cos(brng));
pt.Longitude = ((lon + Math.atan2(Math.sin(brng)*Math.sin(d)*Math.cos(lat), Math.cos(d)-Math.sin(lat)*Math.sin(pt.Latitude))) * 180) / Math.PI;
pt.Latitude = (pt.Latitude * 180) / Math.PI;
var Newshape = new VEShape(VEShapeType.Pushpin, pt)
var URL = "http://en.wikipedia.org/wiki/" + this.Title
Newshape.SetTitle("![](" + this.Title + ".jpg)
");
oVEMap.AddShape(Newshape);
this.ID = Newshape.GetID();
var OrbitRadius = this.ScaleFactor*this.Distance // Radius in KM
this.DrawCircle(OrbitRadius, Color,3);
if (!isShowEcc) return;
this.DrawCircle(OrbitRadius*(1.0+this.Ecc),Color,1);
this.DrawCircle(OrbitRadius*(1.0-this.Ecc),Color,1);
}
this.DrawCircle = function(Rad, Color, width)
{
// Simulate drawing a circle on the map by drawing a polygon
var lat = (this.CenterPt.Latitude * Math.PI) / 180; //rad
var lon = (this.CenterPt.Longitude * Math.PI) / 180; //rad
var d = parseFloat(Rad)/EarthRadius; // d = angular distance covered on earth's surface
var pts = new Array();
for (x = 0; x <= 360; x+=this.CircleIncr)
{
var p2 = new VELatLong(0,0)
brng = x * Math.PI / 180; //rad
p2.Latitude = Math.asin(Math.sin(lat)*Math.cos(d) + Math.cos(lat)*Math.sin(d)*Math.cos(brng));
p2.Longitude = ((lon + Math.atan2(Math.sin(brng)*Math.sin(d)*Math.cos(lat), Math.cos(d)-Math.sin(lat)*Math.sin(p2.Latitude))) * 180) / Math.PI;
p2.Latitude = (p2.Latitude * 180) / Math.PI;
pts.push(p2);
}
var Shape = new VEShape(VEShapeType.Polyline, pts);
Shape.SetLineColor(Color);
Shape.SetLineWidth(width);
Shape.HideIcon();
oVEMap.AddShape(Shape);
}
}
function GetScreenHeight()
{
if (window.innerHeight) return parseInt(window.innerHeight,10); // Netscape
if (document.documentElement && document.documentElement.clientHeight) return parseInt(document.documentElement.clientHeight,10);
if (document.body) return parseInt(document.body.clientHeight,10);
return 500;
}
function GetScreenWidth()
{
if (window.innerWidth) return parseInt(window.innerWidth,10); // Netscape
if (document.documentElement && document.documentElement.clientWidth) return parseInt(document.documentElement.clientWidth,10);
if (document.body) return parseInt(document.body.clientWidth,10)-5;
return 500;
}
function $(id)
{
return document.getElementById(id);
}