Hello everybody,
I have a simple problem that I cannot manage to solve in Matlab.
I am representing the behavior of a vehicle traveling on a given car track and I would like to plot orientated rectangles instead of the standard markers present in the plot environment. I am able to reproduce the orientation through the quiver function, but I am not able to use rectangles instead of the arrows.
Note that I would like to have a rectangle for every instant k (i.e.: if I have 10 instants, ten different rectangles for every position).
This is the code I use for the moment with quiver:
scale_factor = 10;
r = 1;
x = x_c; y = y_c;
angle = alpha+beta;
u = r * cos(angle);
v = r * sin(angle);
h = quiver(x,y,u*scale_factor,v*scale_factor,'--','LineWidth',3,'AutoScale','off');
I have also tried this one translating manually each point but it does not work:
function[]= draw_rectangle1(x_c,y_c,theta)
L = 20;
H = 10;
x_low_left = x_c - L/2;
x_low_right = x_c + L/2;
x_up_right = x_c + L/2;
x_up_left = x_c - L/2;
y_low_left = y_c - H/2;
y_low_right = y_c - H/2;
y_up_right = y_c + H/2;
y_up_left = y_c + H/2;
x_low_left_new = cos(theta)*(x_low_left-x_c)-sin(theta)*(y_low_left-x_c)+x_c;
y_low_left_new = sin(theta)*(x_low_left-x_c)+cos(theta)*(y_low_left-x_c)+y_c;
x_low_right_new = cos(theta)*(x_low_right-x_c)-sin(theta)*(y_low_right-x_c)+x_c;
y_low_right_new = sin(theta)*(x_low_right-x_c)+cos(theta)*(y_low_right-x_c)+y_c;
x_up_right_new = cos(theta)*(x_up_right-x_c)-sin(theta)*(y_up_right-x_c)+x_c;
y_up_right_new = sin(theta)*(x_up_right-x_c)+cos(theta)*(y_up_right-x_c)+y_c;
x_up_left_new = cos(theta)*(x_up_left-x_c)-sin(theta)*(y_up_left-x_c)+x_c;
y_up_left_new = sin(theta)*(x_up_left-x_c)+cos(theta)*(y_up_left-x_c)+y_c;
x_coor=[x_low_left_new x_low_right_new x_up_right_new x_up_left_new];
y_coor=[y_low_left_new y_low_right_new y_up_right_new y_up_left_new];
fill(x_coor, y_coor,'r');
end
I have also given a chance to patch but no way.
If anyone can help me with this simple but tricky code it would be awesome.
Thank you!
