# Extracting surface area of selected cells/faces of an imported .obj file

**URL:** https://discourse.paraview.org/t/extracting-surface-area-of-selected-cells-faces-of-an-imported-obj-file/15135
**Category:** ParaView Support
**Created:** [July 27, 2024, 12:18am UTC](https://discourse.paraview.org/t/extracting-surface-area-of-selected-cells-faces-of-an-imported-obj-file/15135 "2024-07-27T00:18:09Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Bill\_Bo](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/b/bbce88/32.png) [@Bill\_Bo](https://discourse.paraview.org/u/Bill_Bo)
#### Post date: [July 27, 2024, 12:18am UTC](https://discourse.paraview.org/t/extracting-surface-area-of-selected-cells-faces-of-an-imported-obj-file/15135/1 "2024-07-27T00:18:09Z")

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Hi all,

I am new to ParaView, so please bare with my lack of familiarity and skills. I have a 3D model which I would like to extract some data from. The radius of the model is 2.044m, So I was wondering from this whether I could work out the surface area of certain parts of the object and extract them. Or alternatively, since the object is a sphere, I could extract the latitude and longitude of the parts of the sphere I am interested in? Essentially the 3D object is a model of the Ajisai satellite and I want to get the areas/coordinates of each of the mirrors on the surface of it. But I haven’t had much luck in doing so.