📄 yhzzpini.m
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function fignum = yhzzpini
%yhzviewini Initialize filter viewer.
% Copyright (c) 1988-97 by The MathWorks, Inc.
% $Revision: 1.25 $
save_shh = get(0,'showhiddenhandles');
set(0,'showhiddenhandles','on')
%zpud.filt=filter;
%fignum = findobj('type','
figname=prepender('滤波器零极点设计法');
%toolnum = 1; % which instance of the browser
visFrame = 'off'; % set frame around single popups invisible
%if strcmp(visFrame,'off')
% indentPop = 15;
%else
% indentPop = 0;
%end
% ====================================================================
% set defaults and initialize userdata structure
%filtview1Prefs = sptool('getprefs','filtview1');
%filtview2Prefs = sptool('getprefs','filtview2');
%zpud.prefs.tool.zoompersist = filtview1Prefs.zoomFlag;
%zpud.prefs.nfft = evalin('base',filtview1Prefs.nfft);
%zpud.prefs.nimp = evalin('base',filtview1Prefs.nimp);
% Length of impulse / step response ([] ==> auto)
zpud.prefs.pointmodeStr = {'鼠标取点' '手工输入'};
zpud.prefs.pointmode = 1;%zpud.prefs.pointmodeStr{1};
zpud.prefs.minsize = [180 220];
%scalefactor = (get(0,'screenpixelsperinch')/72)^.5;
%zpud.prefs.plotspacing = zpud.prefs.plotspacing*scalefactor;
zpud.prefs.Fs=1;
co = get(0,'defaultaxescolororder');
zpud.prefs.linecolor = co(1,:);
zpud.sz.ih= 47;
zpud.sz.iw= 42;
zpud.sz.lw= 130;
zpud.sz.fus= 5;
zpud.sz.ffs= 5;
zpud.sz.lfs= 15;
zpud.sz.lh= 18;
zpud.sz.uh= 20;
zpud.sz.rw= 230;
zpud.sz.rih= 40;
zpud.sz.riw= 55;
zpud.sz.pmw= 14;
zpud.sz.lbs= 3;
zpud.sz.as= [57.7350 46.1880 23.0940 34.6410];
zpud.sz.ph= 60;
zpud.sz.bw= 110;
%sptsizes;
zpud.sz.bw = zpud.sz.bw+10;
%[err,errstr,zpud.filt] = importfilt('make',{1 1 1 1});
zpud.justzoom = [ 0 0 ] ; % used for mode switching (between zoom and pan)
zpud.zeros=[];
zpud.poles=[];
zpud.zpHndl=[];
filtDefined = 0;
%switch nargin
%case 0
makeParams = {1 1 1};
zpud.pointer = 0; % pointer mode ... == -1 watch, 0 arrow/drag indicators,
% 1 zoom, 2 help
sz = zpud.sz;
screensize = get(0,'screensize');
zpud.resize.minsize = [3*sz.bw+9*sz.fus sz.ih+16*sz.fus+10*sz.uh+4*sz.lh];
% minimum width, height of figure window
zpud.resize.leftwidth = sz.bw+6*sz.fus;
zpud.resize.topheight = sz.ih;
fp = get(0,'defaultfigureposition');
w = max(zpud.resize.minsize(1),fp(3));
h = max(zpud.resize.minsize(2),fp(4));
fp = [fp(1) fp(2)+fp(4)-h w+100 h+50]; % keep upper-left corner stationary
% ====================================================================
% Save figure position for use in resizefcn:
zpud.resize.figpos = fp;
% CREATE FIGURE
fig = figure('createfcn','',...
'closerequestfcn','delete(gcf);',... %filtview(''SPTclose'')',...
'tag','yhzzp',...
'numbertitle','off',...
'integerhandle','off',...
'userdata',zpud ,...
'units','pixels',...
'position',fp,...
'menubar','none',...
'inverthardcopy','off',...
'paperpositionmode','auto',...
'visible','off',...
'name',figname);
uibgcolor = get(0,'defaultuicontrolbackgroundcolor');
uifgcolor = get(0,'defaultuicontrolforegroundcolor');
% ====================================================================
% MENUs
% create cell array with {menu label, callback, tag}
% MENU LABEL CALLBACK TAG
%mc={
% 'File' ' ' 'filemenu'
% '>&Close^w' 'close' 'closemenu'
% '&Window' winmenu('callback') 'winmenu'};
% 'Options' ' ' 'optionsmenu'
% '>&Tile Axes...' 'sbswitch(''fvtile'')' 'tilemenu'
% menu_handles = makemenu(fig, char(mc(:,1)), ...
% char(mc(:,2)), char(mc(:,3)));
% winmenu(fig)
% set(menu_handles,'hiddenhandle','on')
% zpud.ht.reloadmenu = menu_handles(3);
% set(menu_handles(3),'enable','off')
% ====================================================================
% Frames
%f1 = [0 0 sz.bw+6*sz.ffs fp(4)-sz.ih];
%zpud.ht.lftframe = uicontrol('units','pixels',...
% 'style','frame','tag','zpleftframe');
% pf_height = 8*sz.fus+8.5*sz.uh;
% pf = [ f1(1)+sz.fus f1(2)+f1(4)-(sz.lh/2+sz.fus+pf_height) ...
% f1(3)-2*sz.fus pf_height ];
%zpud.ht.plotsframe = uicontrol('units','pixels',...
% 'style','frame','position',pf,'tag','plotframe');
%freqframeHt = 4*sz.fus+2*sz.uh+2.5*sz.lh;
%ff = [sz.fus pf(2)-freqframeHt-sz.fus-sz.lh/2 4*sz.fus+sz.bw freqframeHt];
zpud.ht.chsframe = uicontrol('units','pixels',...
'style','frame','tag','zpchooseframe');
% 'position',ff);
%mf = [pf(1)+sz.fus pf(2)+pf(4)-(sz.lh/2+sz.fus+2*sz.uh+sz.fus)+4 ...
% pf(3)-2*sz.fus sz.fus+1.5*sz.uh];
%zpud.ht.magframe = uicontrol('units','pixels','visible',visFrame,...
% 'style','frame','position',mf,'tag','magframe');
%phf = [pf(1)+sz.fus pf(2)+pf(4)-(sz.lh/2+2*sz.fus+4*sz.uh+2*sz.fus)+5 ...
% pf(3)-2*sz.fus sz.fus+1.5*sz.uh];
%zpud.ht.phaseframe = uicontrol('units','pixels','visible',visFrame,...
% 'style','frame','position',phf,'tag','phaseframe');
%
% fsf = [ff(1)+sz.fus ff(2)+ff(4)-(sz.fus+sz.uh+1.5*sz.lh) ...
% ff(3)-2*sz.fus sz.fus+sz.uh+.5*sz.lh];
% zpud.ht.fscaleframe = uicontrol('units','pixels','visible',visFrame,...
% 'style','frame','tag','freqsframe',...%
% 'position',fsf);
% frf = [ff(1)+sz.fus ff(2)+1.5*sz.fus ...
% ff(3)-2*sz.fus sz.fus+sz.uh+.5*sz.lh];
% zpud.ht.frangeframe = uicontrol('units','pixels','visible',visFrame,...
% 'style','frame','tag','freqrframe',...
% 'position',frf);
% zpud.ht.Fsframe = uicontrol('units','pixels',...
% 'style','frame','tag','fsframe','position',...
% [sz.fus sz.fus ...
% 4*sz.fus+sz.bw sz.fus+sz.uh+.5*sz.lh]);
% ====================================================================
% Popups
pop_props = {'units','pixels',...
'style','popup','horizontalalignment','left'};
% Tweak position & size of popups: [horz_pos ver_pos width height]
%switch computer
%case 'MAC2'
% popTweak = [0 -2 0 0];
%case 'PCWIN'
popTweak = [0 0 0 0];
%otherwise % UNIX
% popTweak = [0 -2 0 0];
%end
zpud.ht.modepop = uicontrol(pop_props{:},...
'string',{'鼠标取点'; '手工输入'},...
'tag','zpmodelist',...
'callback','yhzzpact(''modechange'')',...
'value',zpud.prefs.pointmode);
% 'position',[mf(1:2)+sz.fus+[indentPop 0] sz.bw-indentPop sz.uh]+popTweak);
%=====================================================================
% Create radiobuttons
radio_props = {'units','pixels',...
'style','radiobutton','horizontalalignment','left'};
zpud.ht.zerosBtn=uicontrol( radio_props{:},...
'string','零点',...
'callback','yhzzpact(''choosezeros'')',...
'tag','zpchoosezeros',...
'value',1);
zpud.ht.polesBtn=uicontrol( radio_props{:},...
'string','极点',...
'callback','yhzzpact(''choosepoles'')',...
'tag','zpchoosepoles',...
'value',0);
%======================================================================
% Create edit for zeros and poles
edit_props = { 'units','pixels','backgroundcolor',[1 1 1],...
'style','edit','horizontalalignment','left','enable','off'};
zpud.ht.zerosEdit=uicontrol(edit_props{:},...
'string',' ',...
'callback','yhzzpact(''zEditChange'');',...
'tag','zpzerosEdit');
zpud.ht.polesEdit=uicontrol(edit_props{:},...
'string',' ',...
'callback','yhzzpact(''pEditChange'');',...
'tag','zppolesEdit');
%======================================================================
% Create pushbuttons
push_props = {'units','pixels',...
'style','pushbutton','horizontalalignment','center'};
zpud.ht.clearLast=uicontrol( push_props{:},...
'string','清除上一个',...
'callback','yhzzpact(''clearLast'')',...
'tag','zpclearLast');
zpud.ht.clearAll=uicontrol( push_props{:},...
'string','清除所有',...
'callback','yhzzpact(''clearAll'')',...
'tag','zpclearAll');
zpud.ht.backFD=uicontrol( push_props{:},...
'string','返回',...
'callback','yhzzpact(''backFD'')',...
'tag','zpbackFD');
% ====================================================================
% Create axes:
ax_props = {
'units','pixels',...
'box','on',...
'parent',fig};
%ttl=text('频率响应');
%piS='\pi';
zpud.ht.respAxes = axes(ax_props{:},...
'tag','zpResponseAxes',...
'Xlim',[0,pi],...
'Xtick',[0,pi/4,pi/2,pi/4*3,pi],...
'XTickLabel',{'0','pi/4','pi/2','3pi/4','pi'} );
%'yscale','log');
title('频率响应');
Xlabel('频率, Fsa=2\pi');
Ylabel('幅度(dB)');
zpud.ht.zpAxes = axes(ax_props{:},...
'tag','zpZPAxes',...
'xlim',[-1,1],...
'ylim',[-1,1]);
%'xlimmode','auto',...
%'ylimmode','auto');
Xlabel('零极点位置');
%Xlabel('零极点位⌨️ 快捷键说明
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