[Papervision3D] Conversion between Spherical and Cartesian Coordinates Systems

[mlecho]

hey there, i just went through the same thing using google maps, but in
reverse....i wanted sphere to cartisan, so perhaps you can reverse this
math?

var fauxRadius:Number = 800
			var tg:MapTile3D = e.target as MapTile3D;
			
			var latlng:LatLng = tg.extra.latlng as LatLng;//in true degrees
			
			var phi:Number = (90-latlng.lat())*Math.PI/180;	
			var theta:Number = (latlng.lng())*Math.PI/180;
			
			var dx = -phi* fauxRadius;
			var dy = theta * fauxRadius;
			
			tg.x = dx;
			tg.y = dy;

brawlis wrote:
> 
> Hello
> 
> I have problems with conversion from certisan to spherical coordinate
> systems.
> 
> I used formula from wikipedia
> http://en.wikipedia.org/wiki/Spherical_coordinates
> but nothing, then I tried:
> public function InverseCordinates(x:Number,y:Number,z:Number):Number2D{
> 	var cordinates:Number2D = new Number2D(0,0);
> 	cordinates.x = Math.atan2(x,z)/(2*Math.PI);
> 	if(cordinates.x < 0){
> 		cordinates.x += 1;
> 	}
> 	cordinates.y = Math.atan2(Math.sqrt(x*x+z*z),y)/Math.PI;
> 
> 	return cordinates;
> }
> 
> But nothing :( :(
> 

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