Eyesis4Pi Pixels Calculation: Difference between revisions
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m Created page with "==Calculations== The equirectangular projection size: '''14268x7135''' which equals to ~100MPix but since it's a projection the real pixels are stretched - they only look close t..." |
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==Calculations== | ==Calculations== | ||
The equirectangular projection size: '''14268x7135''' which equals to ~100MPix but since it's a projection the real pixels are stretched - they only look close to the real ones when on the virtual sphere. At the same time the | The equirectangular projection size: '''14268x7135''' which equals to ~100MPix but since it's a projection the real pixels are stretched - they only look close to the real ones when on the virtual sphere. At the same time the equatorial line of the projection consists of real pixels since they are projected as they are due to the projection's properties. | ||
<font size='2'> | <font size='2'> | ||
L = 2*pi*R (1) | L = 2*pi*R (1) | ||
Revision as of 23:41, 26 September 2012
Calculations
The equirectangular projection size: 14268x7135 which equals to ~100MPix but since it's a projection the real pixels are stretched - they only look close to the real ones when on the virtual sphere. At the same time the equatorial line of the projection consists of real pixels since they are projected as they are due to the projection's properties.
L = 2*pi*R (1) S(sphere) = 4*pi*R^2 (2) (1)=>(2) S(sphere) = L^2/pi = 14268^2/3.14 ~ 64.8MPix