You can resort to a bit of programming or even an
Excel. Assuming a set of points describing a single closed
polygonal region, then the area can be computed as follows:
Area = 0.5 * ( x1y2 - x2y1 + ... + xny1 - x1yn );
This value will be positive for right-handed (CCW) polygons and
negative for left-handed (CW) polygons. Sum the areas of each
polygon to determine the total area of a layer.
Good luck
Neal
Wanchai Rattanawong wrote:
> Dear everyone
>
> Can anyone suggest me how to determine the area on each layer? Assume
> that we have many points on one slice.
>
> Best regards,
> Wanchai Rattanawong
> Industrial Research Institute Swinburne (IRIS)
> P.O. BOX 218, Hawthorn
> Victoria 3122, Australia
> Tel:(613)9214 5654 Fax:(613) 9214 5050
> Email: wratta@swin.edu.au
>
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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