rawing options (clipping is automatic).
drawLine3d(line12, 'color', 'k');

% draw an edge, using a thick stroke and a different color
drawEdge(edge13, 'color', 'r', 'linewidth', 2);


%% Create planes

% create a plane from 3 points
plane = createPlane(p1, p2, p3);

% draw the plane. Clipping is automatically performed.
drawPlane3d(plane);

% create a line from a point and a direction vector
p0 = [60 60 60];
n0 = [-10 1 10];
plane0 = createPlane(p0, n0);

% draw the plane, changing its c