gdalgorithms-list

[Algorithms] Triangle area.

[Oscar B. <tr...@te...>]

Hi,

This is something very simple (I think)... I need the fastest way to
find the area of a triangle.

Thanks,

Oscar.

Re: [Algorithms] Triangle area.

[Eric L. <le...@C4...>]

> This is something very simple (I think)... I need the fastest way to find
> the area of a triangle.

For an arbitrary triangle expressed by three points in space, P1, P2, and
P3, the area is given by

    area = 0.5 * Magnitude(CrossProduct(P2 - P1, P3 - P1));

-- Eric Lengyel