Unfolding a 3D sphere to 2D shapes
If you want to made a DIY sphere, you need to unfold the sphere to 2D shapes, or, more strictly speaking, approximate the sphere using petals, or "orange peels" (also called the lunes) on the plane. The calculator calculates basic parameters of such 2D peel and displays coordinates of points for drawing one peel on a plane.
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Articles that describe this calculator
Unfolding a 3D sphere to 2D shapes
Digits after the decimal point: 2
Height of the peel (a)
Width of the peel (b)
Segment height (h)
Arc radius (R)
Peel points
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