Количество контуров polyshape
N = numboundaries(polyin)N = numboundaries(polyin)polyshape.
Создайте полигон и определите его количество контуров.
x1 = [0 1 2];
y1 = [0 1 0];
x2 = [2 3 4];
y2 = [1 2 1];
polyin = polyshape({x1,x2},{y1,y2});
plot(polyin)
N = numboundaries(polyin)
N = 2