IRDYn/complie/R1000 EVT GravityForce V1/mr/TestIfSO3.m

18 lines
367 B
Matlab

function judge = TestIfSO3(mat)
% *** CHAPTER 3: RIGID-BODY MOTIONS ***
% Takes mat: A 3x3 matrix.
% Check if mat is close to or on the manifold SO(3).
% Example Inputs:
%
% clear; clc;
% mat = [1.0, 0.0, 0.0;
% 0.0, 0.1, -0.95;
% 0.0, 1.0, 0.1];
% judge = TestIfSO3(mat)
%
% Output:
% dudge =
% 0
judge = norm(DistanceToSO3(mat)) < 1e-3;
end