I may have bitten off more than I can chew at work. I measured a wireless device output signal at intervals around 360 degrees. I then rotated the router on a vertical axis and repeated the same. I now have 4 sets of polar coordinates (angle,distance) and I want to display this as a sphere if possible to show the effectiveness of the router. The only problem is researching shperical coordinates for a 3d shape need cartesian coordinates. I found a calclulator to assist the conversion ( Coordinate Converter ) and I had one set of coordinates by inputting 50 (metres) for r (radian?) at which all measurements were taken, and the angle for theta (0, 22.5,45, 67.5 etc and I know I should have used 30, 60, 90 but i'm no math whizz!). This gives me the coordinates for one set of 360 degrees which would create a ring I'm guessing. If I want the other 4 sets to be added then what do I do to the data? Effectively I have horizontal measurements, vertical measurements and 45 to 225 and 270 to 135 measurements in a 360 view of the router so the measurement plains look like an asterisk. I am just trying to find my feet as I was stupid enough to accept the challenge without much mathematical background. I'm not entirely sure how much sense this makes to anyone but any advice would be greatly appreciated.