Contents

Function PointInQuad

Description: Is point of intersection inside the obstacle uses sameSide usually used for checking a point in a mesh (triangle) but here we do the same for a 4 point plannar object

function test_plane=PointInQuad(Pint,obs)

this is slightly faster

test_plane=0;
if sameSide(Pint,obs(3,:,:),obs(1,:,:),obs(2,:,:))
    if sameSide(Pint,obs(4,:,:),obs(2,:,:),obs(3,:,:))
        if sameSide(Pint,obs(1,:,:),obs(3,:,:),obs(4,:,:))
            if sameSide(Pint,obs(2,:,:),obs(4,:,:),obs(1,:,:))
                test_plane=1;
            end
        end
    end
end

Published with MATLAB® 7.4