matlab进度条显示
作者:互联网
在日常matlab计算时候,考虑到计算漫长的等待,要是提前知道计算时长那该多好
测试代码
m=4; n=3; p=100; progressbar('1','2','3') for i=1:m for j=1:n for k=1:p pause(0.01) face3=k/p; face2=((j-1)+face3)/n; face1=((i-1)+face2)/m; progressbar(face1,face2,face3) end end end
progressbar进度条函数
function progressbar(varargin) % Description: % progressbar() provides an indication of the progress of some task using % graphics and text. Calling progressbar repeatedly will update the figure and % automatically estimate the amount of time remaining. % This implementation of progressbar is intended to be extremely simple to use % while providing a high quality user experience. % % Features: % - Can add progressbar to existing m-files with a single line of code. % - Supports multiple bars in one figure to show progress of nested loops. % - Optional labels on bars. % - Figure closes automatically when task is complete. % - Only one figure can exist so old figures don't clutter the desktop. % - Remaining time estimate is accurate even if the figure gets closed. % - Minimal execution time. Won't slow down code. % - Randomized color. When a programmer gets bored... % % Example Function Calls For Single Bar Usage: % progressbar % Initialize/reset % progressbar(0) % Initialize/reset % progressbar('Label') % Initialize/reset and label the bar % progressbar(0.5) % Update % progressbar(1) % Close % % Example Function Calls For Multi Bar Usage: % progressbar(0, 0) % Initialize/reset two bars % progressbar('A', '') % Initialize/reset two bars with one label % progressbar('', 'B') % Initialize/reset two bars with one label % progressbar('A', 'B') % Initialize/reset two bars with two labels % progressbar(0.3) % Update 1st bar % progressbar(0.3, []) % Update 1st bar % progressbar([], 0.3) % Update 2nd bar % progressbar(0.7, 0.9) % Update both bars % progressbar(1) % Close % progressbar(1, []) % Close % progressbar(1, 0.4) % Close % % Notes: % For best results, call progressbar with all zero (or all string) inputs % before any processing. This sets the proper starting time reference to % calculate time remaining. % Bar color is choosen randomly when the figure is created or reset. Clicking % the bar will cause a random color change. % % Demos: % % Single bar % m = 500; % progressbar % Init single bar % for i = 1:m % pause(0.01) % Do something important % progressbar(i/m) % Update progress bar % end % % % Simple multi bar (update one bar at a time) % m = 4; % n = 3; % p = 100; % progressbar(0,0,0) % Init 3 bars % for i = 1:m % progressbar([],0) % Reset 2nd bar % for j = 1:n % progressbar([],[],0) % Reset 3rd bar % for k = 1:p % pause(0.01) % Do something important % progressbar([],[],k/p) % Update 3rd bar % end % progressbar([],j/n) % Update 2nd bar % end % progressbar(i/m) % Update 1st bar % end % % % Fancy multi bar (use labels and update all bars at once) % m = 4; % n = 3; % p = 100; % progressbar('Monte Carlo Trials','Simulation','Component') % Init 3 bars % for i = 1:m % for j = 1:n % for k = 1:p % pause(0.01) % Do something important % % Update all bars % frac3 = k/p; % frac2 = ((j-1) + frac3) / n; % frac1 = ((i-1) + frac2) / m; % progressbar(frac1, frac2, frac3) % end % end % end % % Author: % Steve Hoelzer % % Revisions: % 2002-Feb-27 Created function % 2002-Mar-19 Updated title text order % 2002-Apr-11 Use floor instead of round for percentdone % 2002-Jun-06 Updated for speed using patch (Thanks to waitbar.m) % 2002-Jun-19 Choose random patch color when a new figure is created % 2002-Jun-24 Click on bar or axes to choose new random color % 2002-Jun-27 Calc time left, reset progress bar when fractiondone == 0 % 2002-Jun-28 Remove extraText var, add position var % 2002-Jul-18 fractiondone input is optional % 2002-Jul-19 Allow position to specify screen coordinates % 2002-Jul-22 Clear vars used in color change callback routine % 2002-Jul-29 Position input is always specified in pixels % 2002-Sep-09 Change order of title bar text % 2003-Jun-13 Change 'min' to 'm' because of built in function 'min' % 2003-Sep-08 Use callback for changing color instead of string % 2003-Sep-10 Use persistent vars for speed, modify titlebarstr % 2003-Sep-25 Correct titlebarstr for 0% case % 2003-Nov-25 Clear all persistent vars when percentdone = 100 % 2004-Jan-22 Cleaner reset process, don't create figure if percentdone = 100 % 2004-Jan-27 Handle incorrect position input % 2004-Feb-16 Minimum time interval between updates % 2004-Apr-01 Cleaner process of enforcing minimum time interval % 2004-Oct-08 Seperate function for timeleftstr, expand to include days % 2004-Oct-20 Efficient if-else structure for sec2timestr % 2006-Sep-11 Width is a multiple of height (don't stretch on widescreens) % 2010-Sep-21 Major overhaul to support multiple bars and add labels % persistent progfig progdata lastupdate % Get inputs if nargin > 0 input = varargin; ninput = nargin; else % If no inputs, init with a single bar input = {0}; ninput = 1; end % If task completed, close figure and clear vars, then exit if input{1} == 1 if ishandle(progfig) delete(progfig) % Close progress bar end clear progfig progdata lastupdate % Clear persistent vars drawnow return end % Init reset flag resetflag = false; % Set reset flag if first input is a string if ischar(input{1}) resetflag = true; end % Set reset flag if all inputs are zero if input{1} == 0 % If the quick check above passes, need to check all inputs if all([input{:}] == 0) && (length([input{:}]) == ninput) resetflag = true; end end % Set reset flag if more inputs than bars if ninput > length(progdata) resetflag = true; end % If reset needed, close figure and forget old data if resetflag if ishandle(progfig) delete(progfig) % Close progress bar end progfig = []; progdata = []; % Forget obsolete data end % Create new progress bar if needed if ishandle(progfig) else % This strange if-else works when progfig is empty (~ishandle() does not) % Define figure size and axes padding for the single bar case height = 0.03; width = height * 8; hpad = 0.02; vpad = 0.25; % Figure out how many bars to draw nbars = max(ninput, length(progdata)); % Adjust figure size and axes padding for number of bars heightfactor = (1 - vpad) * nbars + vpad; height = height * heightfactor; vpad = vpad / heightfactor; % Initialize progress bar figure left = (1 - width) / 2; bottom = (1 - height) / 2; progfig = figure(... 'Units', 'normalized',... 'Position', [left bottom width height],... 'NumberTitle', 'off',... 'Resize', 'off',... 'MenuBar', 'none' ); % Initialize axes, patch, and text for each bar left = hpad; width = 1 - 2*hpad; vpadtotal = vpad * (nbars + 1); height = (1 - vpadtotal) / nbars; for ndx = 1:nbars % Create axes, patch, and text bottom = vpad + (vpad + height) * (nbars - ndx); progdata(ndx).progaxes = axes( ... 'Position', [left bottom width height], ... 'XLim', [0 1], ... 'YLim', [0 1], ... 'Box', 'on', ... 'ytick', [], ... 'xtick', [] ); progdata(ndx).progpatch = patch( ... 'XData', [0 0 0 0], ... 'YData', [0 0 1 1] ); progdata(ndx).progtext = text(0.99, 0.5, '', ... 'HorizontalAlignment', 'Right', ... 'FontUnits', 'Normalized', ... 'FontSize', 0.7 ); progdata(ndx).proglabel = text(0.01, 0.5, '', ... 'HorizontalAlignment', 'Left', ... 'FontUnits', 'Normalized', ... 'FontSize', 0.7 ); if ischar(input{ndx}) set(progdata(ndx).proglabel, 'String', input{ndx}) input{ndx} = 0; end % Set callbacks to change color on mouse click set(progdata(ndx).progaxes, 'ButtonDownFcn', {@changecolor, progdata(ndx).progpatch}) set(progdata(ndx).progpatch, 'ButtonDownFcn', {@changecolor, progdata(ndx).progpatch}) set(progdata(ndx).progtext, 'ButtonDownFcn', {@changecolor, progdata(ndx).progpatch}) set(progdata(ndx).proglabel, 'ButtonDownFcn', {@changecolor, progdata(ndx).progpatch}) % Pick a random color for this patch changecolor([], [], progdata(ndx).progpatch) % Set starting time reference if ~isfield(progdata(ndx), 'starttime') || isempty(progdata(ndx).starttime) progdata(ndx).starttime = clock; end end % Set time of last update to ensure a redraw lastupdate = clock - 1; end % Process inputs and update state of progdata for ndx = 1:ninput if ~isempty(input{ndx}) progdata(ndx).fractiondone = input{ndx}; progdata(ndx).clock = clock; end end % Enforce a minimum time interval between graphics updates myclock = clock; if abs(myclock(6) - lastupdate(6)) < 0.01 % Could use etime() but this is faster return end % Update progress patch for ndx = 1:length(progdata) set(progdata(ndx).progpatch, 'XData', ... [0, progdata(ndx).fractiondone, progdata(ndx).fractiondone, 0]) end % Update progress text if there is more than one bar if length(progdata) > 1 for ndx = 1:length(progdata) set(progdata(ndx).progtext, 'String', ... sprintf('%1d%%', floor(100*progdata(ndx).fractiondone))) end end % Update progress figure title bar if progdata(1).fractiondone > 0 runtime = etime(progdata(1).clock, progdata(1).starttime); timeleft = runtime / progdata(1).fractiondone - runtime; timeleftstr = sec2timestr(timeleft); titlebarstr = sprintf('%2d%% %s remaining', ... floor(100*progdata(1).fractiondone), timeleftstr); else titlebarstr = ' 0%'; end set(progfig, 'Name', titlebarstr) % Force redraw to show changes drawnow % Record time of this update lastupdate = clock; % ------------------------------------------------------------------------------ function changecolor(h, e, progpatch) %#ok% Change the color of the progress bar patch % Prevent color from being too dark or too light colormin = 1.5; colormax = 2.8; thiscolor = rand(1, 3); while (sum(thiscolor) < colormin) || (sum(thiscolor) > colormax) thiscolor = rand(1, 3); end set(progpatch, 'FaceColor', thiscolor) % ------------------------------------------------------------------------------ function timestr = sec2timestr(sec) % Convert a time measurement from seconds into a human readable string. % Convert seconds to other units w = floor(sec/604800); % Weeks sec = sec - w*604800; d = floor(sec/86400); % Days sec = sec - d*86400; h = floor(sec/3600); % Hours sec = sec - h*3600; m = floor(sec/60); % Minutes sec = sec - m*60; s = floor(sec); % Seconds % Create time string if w > 0 if w > 9 timestr = sprintf('剩余:%d 周', w); else timestr = sprintf('剩余:%d 周, %d 天', w, d); end elseif d > 0 if d > 9 timestr = sprintf('剩余:%d 天', d); else timestr = sprintf('剩余:%d 天, %d 小时', d, h); end elseif h > 0 if h > 9 timestr = sprintf('剩余:%d 小时', h); else timestr = sprintf('剩余:%d 小时, %d 分钟', h, m); end elseif m > 0 if m > 9 timestr = sprintf('剩余:%d 分', m); else timestr = sprintf('剩余:%d 分钟, %d 秒', m, s); end else timestr = sprintf('剩余:%d 秒', s); end
运行结果:
标签:...,显示,end,进度条,progressbar,ndx,matlab,bar,progdata 来源: https://blog.51cto.com/u_12355165/2782175