File:AnalogClockAnimation2 3hands 1h in 4min.gif
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AnalogClockAnimation2_3hands_1h_in_4min.gif (115 × 115 pixels, file size: 5.16 MB, MIME type: image/gif, looped, 3,601 frames, 4 min 13 s)
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Summary
[edit]| Description |
Deutsch: Animation einer Analoguhr
English: Animation of an analog clock |
| Date | |
| Source | Own work |
| Author | Jahobr |
| Other versions |
|
| GIF development | |
| Source code | MATLAB codefunction AnalogClockAnimation2()
% source code that produces a GIF and a SVG
%
% 2017-04-27 Jahobr
%% create figure
figHandle = figure(15674455);
clf
axesHandle = axes;
hold(axesHandle,'on')
set(figHandle, 'Units','pixel');
axis equal;
set(axesHandle,'position',[-0.05 -0.05 1.1 1.1]); % stretch axis bigger as figure, easy way to get rid of ticks [x y width height]
set(figHandle, 'position',[1 1 900 900]); % big start image for antialiasing later [x y width hight]
xlim([-1.2 1.2]);
ylim([-1.2 1.2]);
map = gray(8);
set(figHandle,'GraphicsSmoothing','on') % requires at least version 2014b
angleOffPoints = linspace(0,2*pi,121);
angleOffPoints(end) = angleOffPoints(end)+0.001; % fix small rendereing bug; otherwiese the line is not perfectly closed
[X,Y] = pol2cart(angleOffPoints,1);
plot(X,Y,'LineWidth',10,'color',[0 0 0]) % outer line
[pathstr,fname] = fileparts(which(mfilename)); % save files under the same name and at file location
for minut = 1:60 % minute marks
x_y = [0 0;... x
0.9 0.95]; % y
x_y = rotateInMinutes(x_y,minut);
plot(x_y(1,:),x_y(2,:),'LineWidth',8,'color',[0 0 0]) % line
end
for minut = 5:5:60 % hour marks
x_y = [0 0;... x
0.75 0.95]; % y
x_y = rotateInMinutes(x_y,minut);
plot(x_y(1,:),x_y(2,:),'LineWidth',12,'color',[0 0 0]) % line
end
% hour hand
X_Y_hour = [0 0;... x
-0.1 0.6]; % y
linW_hour = 20;
h_hour = plot(X_Y_hour(1,:),X_Y_hour(2,:),'-k','LineWidth',linW_hour); %
% minute hand
X_Y_minu = [0 0;... x
-0.2 0.94]; % y
linW_minu = 12;
h_minu = plot(X_Y_minu(1,:),X_Y_minu(2,:),'-k','LineWidth',linW_minu); %
% second hand
X_Y_sec = [0 0;... x
-0.2 0.94];
linW_sec = 8.0;
h_sec = plot(X_Y_sec(1,:),X_Y_sec(2,:),'-k','LineWidth',linW_sec); %
%%%%%%%%%%%%%%%%%%%%%%%%%%%% 2-hands %%%%%%%%%%%%%%%%%%%%%%%%%%%%
set(h_sec,'xData',X_Y_sec(1,:),'yData',X_Y_sec(2,:)+10); % move second hand out
tic
nFrames = 12*60;
for iFrame = 1:nFrames
minu = iFrame-1;
x_y = rotateInMinutes(X_Y_hour,minu/60*5);
set(h_hour,'xData',x_y(1,:),'yData',x_y(2,:));
x_y = rotateInMinutes(X_Y_minu,floor(minu));
set(h_minu,'xData',x_y(1,:),'yData',x_y(2,:));
if nFrames == 60*60*12
set(h_hour,'LineWidth',linW_hour*1.5); % thicker lines for the 12h 3Hands case
set(h_minu,'LineWidth',linW_minu*1.5); % thicker lines for the 12h 3Hands case
end
%% save animation 1 "2 hands" 12-hour
drawnow;
f = getframe(figHandle);
f1 = imresize(f.cdata,250/900); % the size reduction: adds antialiasing
if iFrame == 1 % create variable
im1 = rgb2ind(f1,map,'nodither');
im1(1,1,1,nFrames) = 0; % allocate
else
im1(:,:,1,iFrame) = rgb2ind(f1,map,'nodither');
end
imtemp1 = rgb2ind(f1,map,'nodither');
im1(:,:,1,iFrame) = imtemp1;
%% save animation 2 "2 hands" 1-hour
if minu <= 60 % 61 frames
if iFrame == 1 % create variable
im2 = rgb2ind(f.cdata,map,'nodither');
im2(1,1,1,61) = 0; % allocate
else
im2(:,:,1,iFrame) = rgb2ind(f.cdata,map,'nodither');
end
end
end
imwrite(im1,map,fullfile(pathstr, [fname '_2hands_12h_in_1min.gif']),'DelayTime',1/12,'LoopCount',inf) % (12*60)/12
disp([fname '_2hands_12h_in_1min.gif has ' num2str(numel(im1)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
imwrite(im1,map,fullfile(pathstr, [fname '_2hands_12h_in_realtime.gif']),'DelayTime',60,'LoopCount',inf) %
disp([fname '_2hands_12h_in_realtime.gif has ' num2str(numel(im1)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
imwrite(im2,map,fullfile(pathstr, [fname '_2hands_1h_in_6sec.gif']),'DelayTime',1/10,'LoopCount',inf) % 60/10
disp([fname '_2hands_1h_in_6sec.gif has ' num2str(numel(im2)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
imwrite(im2,map,fullfile(pathstr, [fname '_2hands_1h_in_realtime.gif']),'DelayTime',60,'LoopCount',inf) %
disp([fname '_2hands_1h_in_realtime.gif has ' num2str(numel(im2)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
%%%%%%%%%%%%%%%%%%%%%%%%%%%% 3-hands %%%%%%%%%%%%%%%%%%%%%%%%%%%%
if nFrames == 60*12
msgbox(['Rendering for the full 12-hour-version will take about ' num2str(round(toc*60/60)) ' minutes.']);
end
set(h_hour,'LineWidth',linW_hour*1.5); % thicker lines for the 12h 3Hands case
set(h_minu,'LineWidth',linW_minu*1.5); % thicker lines for the 12h 3Hands case
set(h_sec, 'LineWidth',linW_sec *1.5); % thicker lines for the 12h 3Hands case
nFrames = 60*60*12;
for iFrame = 1:nFrames
secon = iFrame-1;
x_y = rotateInMinutes(X_Y_hour,secon/60/60*5);
set(h_hour,'xData',x_y(1,:),'yData',x_y(2,:));
x_y = rotateInMinutes(X_Y_minu,floor(secon/60));
set(h_minu,'xData',x_y(1,:),'yData',x_y(2,:));
x_y = rotateInMinutes(X_Y_sec,secon);
set(h_sec,'xData',x_y(1,:),'yData',x_y(2,:));
%% save animation 1 "3 hands" 12-hour
drawnow;
f = getframe(figHandle);
f1 = imresize(f.cdata,34/900); % the size reduction: adds antialiasing
if iFrame == 1 % create variable
im1 = rgb2ind(f1,map,'nodither');
im1(1,1,1,nFrames) = 0; % allocate
else
im1(:,:,1,iFrame) = rgb2ind(f1,map,'nodither');
end
%% save animation 2 "3 hands" 1-hour
if secon <= 60*60 % 3601 frames
set(h_hour,'LineWidth',linW_hour); % normal lines
set(h_minu,'LineWidth',linW_minu); % normal lines
set(h_sec, 'LineWidth',linW_sec ); % normal lines
drawnow;
f = getframe(figHandle);
f2 = imresize(f.cdata,115/1000); % the size reduction: adds antialiasing
if iFrame == 27*60+13
if ~isempty(which('plot2svg'))
plot2svg(fullfile(pathstr, [fname '_still_frame.svg']),figHandle) % by Juerg Schwizer
else
disp('plot2svg.m not available; see http://www.zhinst.com/blogs/schwizer/');
end
end
if iFrame == 1 % create variable
im2 = rgb2ind(f2,map,'nodither');
im2(1,1,1,60*60+1) = 0; % allocate
else
im2(:,:,1,iFrame) = rgb2ind(f2,map,'nodither');
end
set(h_hour,'LineWidth',linW_hour*1.5); % thicker lines for the 12h 3Hands case
set(h_minu,'LineWidth',linW_minu*1.5); % thicker lines for the 12h 3Hands case
set(h_sec, 'LineWidth',linW_sec *1.5); % thicker lines for the 12h 3Hands case
end
end
imwrite(im1,map,fullfile(pathstr, [fname '_3hands_12h_in_30min.gif']),'DelayTime',1/24,'LoopCount',inf) % (12*60*60)/24/60
disp([fname '_3hands_12h_in_30min.gif has ' num2str(numel(im1)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
imwrite(im1,map,fullfile(pathstr, [fname '_3hands_12h_in_realtime.gif']),'DelayTime',1,'LoopCount',inf) %
disp([fname '_3hands_12h_in_realtime.gif has ' num2str(numel(im1)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
imwrite(im2,map,fullfile(pathstr, [fname '_3hands_1h_in_4min.gif']),'DelayTime',1/15,'LoopCount',inf) % (60*60)/15/60
disp([fname '_3hands_1h_in_4min.gif has ' num2str(numel(im2)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
imwrite(im2,map,fullfile(pathstr, [fname '_3hands_1h_in_realtime.gif']),'DelayTime',1,'LoopCount',inf) %
disp([fname '_3hands_1h_in_realtime.gif has ' num2str(numel(im2)/10^6 ,4) ' Megapixels']) % Category:Animated GIF files exceeding the 50 MP limit
if ispc; dos(['explorer ' pathstr]); end % open folder with files in it
return
function x_y = rotateInMinutes(x_y,minut)
anglee = -minut/60*2*pi;
rotM = [cos(anglee) -sin(anglee); sin(anglee) cos(anglee)];
x_y = rotM*x_y;
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Licensing
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I, the copyright holder of this work, hereby publish it under the following license:
 
|
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:27, 27 April 2017 | | 115 × 115 (5.16 MB) | Jahobr (talk | contribs) | User created page with UploadWizard |
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