Animate 3D Plot View

299 次查看(过去 30 天)
Nick
Nick2013-9-11
回答: John Navarro ,2021-5-11
I'm trying to create an animated GIF of a 3D plot by rotating the plot around, using a method similar to the Animated GIF example in the MATLAB File Exchange ( link ).
I was able to animate the figure on the screen using the view function and pause, but I'm having trouble turning this into a GIF. On the first i loop, on the second iteration (that is, k=2), when it gets to the line "im(:,:,1,k) = rgb2ind(f.cdata,map,'nodither');" it returns the following error:
Subscripted assignment dimension mismatch. Error in test_rotate (line 40) im(:,:,1,k) = rgb2ind(f.cdata,map,'nodither');
Any ideas? Thanks!
CODE:
plot3(xA,yA,zA,'-b',xB,yB,zB,'-r');
title('Plot Title')
xlabel('X data')
ylabel('Y data')
zlabel('Z data')
legend('Data A','Data B')
grid on
az = 0;
el = 90;
view([az,el])
degStep = 5;
detlaT = 0.1;
fCount = 71;
f = getframe;
[im,map] = rgb2ind(f.cdata,256,'nodither');
im(1,1,1,fCount) = 0;
k = 1;
% spin 45°
for i = 0:-degStep:-45
az = i;
([az,el])
f = getframe;
im(:,:,1,k) = rgb2ind(f.cdata,map,'nodither');
k = k + 1;
end
% tilt down
for i = 90:-degStep:15
el = i;
view([az,el])
f = getframe;
im(:,:,1,k) = rgb2ind(f.cdata,map,'nodither');
k = k + 1;
end
% spin left
for i = az:-degStep:-90
az = i;
view([az,el])
f = getframe;
im(:,:,1,k) = rgb2ind(f.cdata,map,'nodither');
k = k + 1;
end
% spin right
for i = az:degStep:0
az = i;
view([az,el])
f = getframe;
im(:,:,1,k) = rgb2ind(f.cdata,map,'nodither');
k = k + 1;
end
% tilt up to original
for i = el:degStep:90
el = i;
view([az,el])
f = getframe;
im(:,:,1,k) = rgb2ind(f.cdata,map,'nodither');
k = k + 1;
end
imwrite(im,map,'Animation.gif','DelayTime',detlaT,'LoopCount',inf)

采纳的回答

Adam Filion
Adam Filion 2013-9-11
Hi Nick, you need to use
f = getframe(gcf)
instead of just 'getframe' to make sure it grabs the right figure window. I quickly tried it on my machine and that fixed it.
  1 个评论
Nick
Nick 2013-9-11
That did the trick, thanks so much!

请先登录,再进行评论。

更多回答(2 个)

Carlos Ramos
Carlos Ramos 2017-3-18
Excelente aporte.. mil gracias!!

John Navarro
John Navarro 2021-5-11
Great answer, but...
Does someone know if it is an updated solution or a easier command for this problem? The accepted solution is from 2013

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by