iphone - iOS is it possible to convert CLLocation into some sort of XYZ metric coordinate system? -

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i'm building augmented reality game, , working cllocation rather cumbersome.

is there way locally approximate cllocation xyz coordinate, expressed in meters origin starting @ arbitrary point (for example initial position when game started)?

lets i'm working 1 mile radius , not care curvature of earth. is possible approximate or somehow simplify location based calculations local position tracking?

alternatively, there coordinate system can used cllocation incorporates roll, pitch, yaw of cmattitude compass orientation?

clarification: far understand, problem latitude , longitude units vary in size, depending on position on globe. should've specified x,y,z should in standard units, meters or feet.

thank you!

the haversine formula may useful.

i found article on @ http://www.jaimerios.com/?p=39 code examples.


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