rotating an image while moving

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Kevin
Kevin 2014-2-19
评论： Kevin 2014-2-19
In my code I am attempting to move a box along a path, when it is moving it needs to be rotating in a circle. However I am unsure of where to start. I have the box moving along the required path using the following code.
Xcoordinate = [0,0,5,5];
Ycoordinate = [0,5,5,0];
figure
hold on;
for t = [0:0.02:5.85];
x = 50*cosd(35)*t;
y = 50*t*sind(35)-9.81*(t^2)/2;
theta = 5*pi/180;
rotationfactorx = [cos(theta), -sin(theta)];
rotationfactory = [sin(theta), cos(theta)];
sqr = fill(Xcoordinate+x,Ycoordinate+y,'y');
axis([-20 250 -20 250]);
pause(.02);
delete(sqr);
end

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回答（1 个）

Walter Roberson
Walter Roberson 2014-2-19
Put the box in a hgtramsform group. Use makehgtransform() to calculate the new rotation matrix and then set() it in the hgtransform group to get the effect of the rotation and movement.
  1 个评论
Kevin
Kevin 2014-2-19
I am unfamiliar with this command, could you explain in more detail how I would apply it to my code?

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