matlab把一組點繪製到座標軸上

輸入：

detect_point: 1024*2 double

繪製：

scatter(detect_point(:,1),detect_point(:,2))

 

結果：

舉例：

 

% 梯形
pointNumber = 32
detect_point = []
for im=1:10:10.*pointNumber
    for in=1:10:10.*pointNumber
        in = in + 0.1*(im/32-1)*(16-in/10);
        im = im + -0.0005*in;
%         scene(im,in,1) = 10;
        detect_point = [detect_point;[im,in]];
    end
end
scatter(detect_point(:,1),detect_point(:,2))