static float calcTexArea(final MikkTSpaceContext mikkTSpace, final int indices[]) {
        final Vector3f t1 = getTexCoord(mikkTSpace, indices[0]);
        final Vector3f t2 = getTexCoord(mikkTSpace, indices[1]);
        final Vector3f t3 = getTexCoord(mikkTSpace, indices[2]);

        final float t21x = t2.x - t1.x;
        final float t21y = t2.y - t1.y;
        final float t31x = t3.x - t1.x;
        final float t31y = t3.y - t1.y;

        final float fSignedAreaSTx2 = t21x * t31y - t21y * t31x;

        return fSignedAreaSTx2 < 0 ? (-fSignedAreaSTx2) : fSignedAreaSTx2;
    }
A private constructor to inhibit instantiation of this class.
jme3-core/src/main/java/com/jme3/util/mikktspace/MikktspaceTangentGenerator.java