我有以下用于在 matlab 中绘制填充矩形和圆形形状的语句。 我必须为这些语句添加的内容只是为了在起点和目标点之间制作形状而不会发生碰撞。
fill([9.5 9.5 11.5 11.5 ],[12.6 14.6 14.6 12.6],'r'); %rectangler shape
hold on
r=1;
color=[1 0 0];
t=linspace(0,2*pi);
fill(15+r*cos(t),8+r*sin(t),color); %circle shape
grid on
以矩形为例。诀窍是逐渐修改对象属性，在本例中是它的'Vertices'
origin_x = [9.5 9.5 11.5 11.5 ]; %// initial coordinates of vertices
origin_y = [12.6 14.6 14.6 12.6];
destination_x = origin_x + 3; %// final coordinates of vertices
destination_y = origin_y + 2;
n_steps = 100; %// number of "frames"
t_pause = .03; %// seconds between frames
h = fill(origin_x, origin_y, 'r'); %// create object at initial position
axis([8 16 10 18]) %// adjust as needed, to cover the desired area
axis equal %// same scale in both axes
axis manual %// prevent axes from auto-scaling
for t = linspace(0,1,n_steps)
x = (1-t)*origin_x + t*destination_x; %// update x
y = (1-t)*origin_y + t*destination_y; %// update y
set(h, 'Vertices', [x(:) y(:)]) %// change object's position
pause(t_pause) %// a pause is needed to make movement slower
drawnow %// probably not needed after pause. Just in case
end
以矩形和圆形为例。方法类似：创建两个对象并更新它们'Vertices'内的财产for loop.
%// Define rectangle values
origin_x1 = [9.5 9.5 11.5 11.5 ];
origin_y1 = [12.6 14.6 14.6 12.6];
destination_x1 = origin_x1 + 3;
destination_y1 = origin_y1 + 2;
%// Define circle values
r = 1;
v = linspace(0,2*pi);
origin_x2 = 15+r*cos(v);
origin_y2 = 10+r*sin(v);
destination_x2 = origin_x2 - 1;
destination_y2 = origin_y2 + 3;
%// Define movement speed
n_steps = 100;
t_pause = .03;
%// Create objects
h1 = fill(origin_x1, origin_y1, 'r');
hold on
h2 = fill(origin_x2, origin_y2, 'b');
axis([8 16 10 18])
axis equal
axis manual
%// Update properties
for t = linspace(0,1,n_steps)
x1 = (1-t)*origin_x1 + t*destination_x1;
y1 = (1-t)*origin_y1 + t*destination_y1;
set(h1, 'Vertices', [x1(:) y1(:)])
x2 = (1-t)*origin_x2 + t*destination_x2;
y2 = (1-t)*origin_y2 + t*destination_y2;
set(h2, 'Vertices', [x2(:) y2(:)])
pause(t_pause)
drawnow
end
