Hello.(adsbygoogle = window.adsbygoogle || []).push({});

Let's think that we have a sphere that shown in the picture above. The user will select 4 different point the earth's surface. Then I must merge this points with shortest curves, then I got a surface. (Like picture 2) Because of the world's surface, our area is elliptical. How can I calculate the area of this elliptical surface and formulating this elliptical surface in 3d coordinates (x,y,z).

I would be very grateful, if you tell me how can I deal with this problem.

Sorry for poor English.

picture 1

http://img705.imageshack.us/img705/6263/worldre.png [Broken]

picture 2

http://img836.imageshack.us/img836/3679/world2u.png [Broken]

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Calculating an elliptical surface and formulating this surface in 3d

Loading...

Similar Threads for Calculating elliptical surface |
---|

I surface area of a revolution, why is this wrong? |

I Surface Area of Volume of Revolution |

I Finding a unit normal to a surface |

I How to calculate the area under a curve |

**Physics Forums | Science Articles, Homework Help, Discussion**