matlab findobj name,MATLAB的GUI

逃离我推掉我的手 2023-01-15 15:25 140阅读 0赞

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %常使用的对象查看和设置函数2 % 1.get、set函数3 get(0) %获得句柄值为0的对象的属性，即显示器对象属性4

5 plot(\[0:10\]); %绘制一幅图6 title(‘示例‘); %增加text对象7

8 %获得figure的所有子对象9 allchild(gcf)10

11 %查看子对象类型12 get(ans(1)) %type属性可以看到子对象类型13

14 %获得静态文本“示例”的句柄并进行设置15 h = findobj(allchild(gca), ‘String‘, ‘示例‘);16 set(h, ‘FontSize‘, 20, ‘FontWeight‘, ‘bold‘);

GUI 1

findobj：特殊属性的图形对象 (doc findobj)

语法：

1.findobj:

findobj返回根对象的句柄和所有子对象(findobj returns handles of the root object and all its descendants without assigning the result to a variable.)

2.h = findobj：

返回根对象的句柄和所有子对象

3.h = findobj(‘PropertyName‘,PropertyValue,...)

返回所有属性名为‘PropertyName’，属性值为‘PropertyValue‘的图形对象的句柄。可以指定多个属性/值对。

4.h = findobj(‘PropertyName‘,PropertyValue,‘-logicaloperator‘, PropertyName‘,PropertyValue,...)

\-logicaloperator可以取值：

\-and

\-or

\-xor

\-not

等

5.h = findobj(‘-regexp‘,‘PropertyName‘,‘regexp‘,...)

6.h = findobj(‘-property‘,‘PropertyName‘)

如果存在‘PropertyName’这个属性名，就返回此图形句柄

7.h = findobj(objhandles,...)

限制搜索范围为objhandles和他们的子图中

8.h = findobj(objhandles,‘-depth‘,d,...)

指定搜索深度，深度参数‘d‘控制遍历层数，d为inf表示遍历所有层，d为0等同d=‘flat‘

9.h = findobj(objhandles,‘flat‘,‘PropertyName‘,PropertyValue,...)

‘flat‘限制搜索范围只能是当前层，不能搜索子图。

如果句柄指向一个不存在的图形，findobj返回一个错误。

findobj正确匹配任何合法属性值，例如：

findobj(‘Color‘,‘r‘)

找到所有color值为红的对象。

为了寻找满足指定条件的额handle对象，我们可以使用handle.findobj。

例子：

在当前坐标下查找所有直线对象：

h = findobj(gca,‘Type‘,‘line‘)　　%gca为当前坐标的句柄

查找Label属性设为‘foo‘和String设为‘bar‘的所有对象:

h = findobj(‘Label‘,‘foo‘,‘-and‘,‘String‘,‘bar‘);

查找String不为‘foo‘也不为‘bar‘的所有对象:

h = findobj(‘-not‘,‘String‘,‘foo‘,‘-not‘,‘String‘,‘bar‘);

h = findobj(‘String‘,‘foo‘,‘-and‘,‘Tag‘,‘button one‘,...

‘-and‘,‘-not‘,\{‘Color‘,‘red‘,‘-or‘,‘Color‘,‘blue‘\})

Find all objects for which you have assigned a value to the Tag property (that is, the value is not the empty string ‘‘):

h = findobj(‘-regexp‘,‘Tag‘,‘\[^‘‘\]‘)

Find all children of the current figure that have their BackgroundColor property set to a certain shade of gray (\[.7 .7 .7\]). This statement also searches the current figure for the matching property value pair.

h = findobj(gcf,‘-depth‘,1,‘BackgroundColor‘,\[.7 .7 .7\])

![cdec0645add3fc3c328197dda5c76203.png][]GUI

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %对象操作示例2 % h= figure ; get(h);3 %获取能够使用的句柄4 hf = figure(‘Units‘, ‘Normalized‘, ...5 ‘Position‘, \[0.2 0.3 0.5 0.5\], ...6 ‘Menu‘, ‘none‘);7

8 ha = axes(‘Parent‘, hf, ‘Units‘, ‘Normalized‘, ...9 ‘Position‘, \[0.1 0.1 0.8 0.8\]);10

11 hl = line(‘Parent‘, ha, ‘XData‘, \[0:0.01:7\], ...12 ‘YData‘, sin(\[0:0.01:7\]), ‘Color‘, ‘r‘, ...13 ‘LineWidth‘, 3);14

15 cstring = ‘gbkmy‘;16

17 for k = 1:5

18 pause(3);19 set(hl, ‘Color‘, cstring(k));20 end

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %底层代码实现GUI2 hf =figure(...3 ‘Units‘, ‘Normalized‘, ...4 ‘Position‘, \[0.2 0.2 0.6 0.5\], ...5 ‘Menu‘, ‘none‘, ...6 ‘Color‘, ‘w‘);7

8 ha = axes(‘Parent‘, hf, ...9 ‘Units‘, ‘Normalized‘, ...10 ‘Position‘, \[0.1 0.1 0.6 0.8\], ...11 ‘Box‘, ‘off‘, ...12 ‘NextPlot‘, ‘add‘);13

14 hb1 = uicontrol(‘Parent‘, hf, ...15 ‘Units‘, ‘Normalized‘, ...16 ‘Position‘, \[0.75 0.2 0.15 0.1\], ...17 ‘Style‘, ‘pushbutton‘, ...18 ‘String‘, ‘sin‘, ...19 ‘Callback‘, ‘plot(sin(\[0:0.01:6\]))‘);20

21 hb2 = uicontrol(‘Parent‘, hf, ...22 ‘Units‘, ‘Normalized‘, ...23 ‘Position‘, \[0.75 0.4 0.15 0.1\], ...24 ‘Style‘, ‘pushbutton‘, ...25 ‘String‘, ‘cos‘, ...26 ‘Callback‘, ‘plot(cos(\[0:0.01:6\]))‘);27

28 hb3 = uicontrol(‘Parent‘, hf, ...29 ‘Units‘, ‘Normalized‘, ...30 ‘Position‘, \[0.75 0.6 0.15 0.1\], ...31 ‘Style‘, ‘pushbutton‘, ...32 ‘String‘, ‘clear‘, ...33 ‘Callback‘, ‘try,delete(allchild(ha));end‘);

GUI 3

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %常用对象的属性2 % % 1.figure3 % hf =figure;4 % get(hf);5 %

6 % %改变颜色7 % set(hf, ‘Color‘, ‘w‘);8 % set(hf, ‘Menubar‘, ‘none‘);9 % set(hf, ‘NumberTitle‘, ‘off‘, ‘Name‘, ‘演示‘);10 % set(hf, ‘ReSize‘, ‘off‘);11 % pause(3)12 % set(hf, ‘Visible‘, ‘off‘);13 % pause(3)14 % set(hf, ‘Visible‘, ‘on‘);15 %

16 % set(hf, ‘WindowStyle‘, ‘modal‘);17 %

18 % set(hf, ‘WindowKeyPressFcn‘, ‘closereq‘);19 %

20 % set(hf, ‘WindowButtonDownFcn‘, ‘closereq‘);21 %

22 % hb = uicontrol(‘Style‘, ‘pushbutton‘, ‘Callback‘, ‘closereq‘);23

24 % 2.axes25 ha =axes;26 get(ha)27 set(ha, ‘NextPlot‘, ‘add‘);28 plot(\[0:100\]);29

30 plot(sin(0:0.01:3));

GUI 4

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %text2 hf =axes;3 ht = text(1, 1, ‘示例‘);4

5 get(ht)6

7 text(‘String‘, ‘\\int\_0^x dF(x)‘, ‘Position‘, \[0.5 .5\]);8

9 text(‘interpreter‘, ‘latex‘, ‘String‘, ‘$$ \\int\_0^x dF(x) $$‘, ‘Position‘, \[0.2 .2\]);10

11 %原始的语句写出来12 plot(x);13 %在原始语句两遍加上单引号14 ‘plot(x);‘

15 %当原始语句中含有引号，那么将原始的单引号都改为两个单引号，然后再最外层加上一对单引号16 ‘plot(x, y,‘‘r‘‘);‘

GUI 5

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %text2 hf =axes;3 ht = text(0.1, 1, ‘示例‘);4

5 get(ht)6

7 text(‘String‘, ‘\\int\_0^x dF(x)‘, ‘Position‘, \[0.5 .5\]);8

9 text(‘interpreter‘, ‘latex‘, ‘String‘, ‘$$ \\int\_0^x dF(x) $$‘, ‘Position‘, \[0.2 .2\]);10

11 %原始的语句写出来12 plot(x);13 %在原始语句两遍加上单引号14 ‘plot(x);‘

15 %当原始语句中含有引号，那么将原始的单引号都改为两个单引号，然后再最外层加上一对单引号16 ‘plot(x, y,‘‘r‘‘);‘

GUI6

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %uigetfile2 uigetfile3

4 doc uigetfile5

6 %规定打开文件类型7 uigetfile(‘\*.m‘);8

9 %输出参数意义10 \[a, b, c\] = uigetfile(‘\*.m‘);11

12 \[a, b, c\] = uigetfile(‘\*.txt‘);13 if c == 1

14 load(fullfile(b, a));15 end16

17 uigetfile(‘\*.m‘, ‘实例‘, ‘default.m‘);18

19 %uiputfile20 uiputfile21

22 doc uiputfile23 \[a, b, c\] = uiputfile(‘\*.m‘);

GUI 7

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %颜色设置对话框2 uisetcolor3

4 doc uisetcolor5

6 c =uisetcolor;7

8 c = uisetcolor(\[1 0 0\]);9

10 h = plot(\[0:10\]);11 c =uisetcolor(h);12

13 figure;14 b = uicontrol(‘Parent‘, gcf, ‘String‘, ‘颜色设置‘, ‘Style‘, ‘pushbutton‘, ‘Callback‘, ...15 ‘c = uisetcolor; set(b,‘‘BackgroundColor‘‘, c);‘);16

17 %字体设置对话框18 uisetfont19

20 doc uisetfont21

22 S =uisetfont(b);23

24 figure;25 b = uicontrol(‘Parent‘, gcf, ‘String‘, ‘颜色设置‘, ‘Style‘, ‘pushbutton‘, ‘Callback‘, ...26 ‘uisetfont(b);‘, ‘Position‘, \[0.2 .2 0.8 0.8\], ‘Units‘, ‘Normalized‘);

GUI 8

![cdec0645add3fc3c328197dda5c76203.png][]

![81178cc93a2a3bb5048d90d76e7ec935.png][]

1 %进度条2 %waitbar3 h = waitbar(0, ‘实例‘);4 get(h)5

6 %获得进度条的子对象7 get(get(h, ‘Children‘))8

9 ha = get(h, ‘Children‘);10

11 %获得坐标轴子对象的子对象内容12 get(ha, ‘Children‘)13

14 get(ans(1))15 get(ans(2))16

17 hrand = waitbar(0.3, ‘颜色‘)18

19 ha1 = get(hrand, ‘Children‘);20 hac = get(ha1, ‘Children‘);21 hapa = findall(hac, ‘Type‘, ‘patch‘);22 set(hapa, ‘Facecolor‘, ‘k‘)23

24 doc waitbar25

26 waitbar(0.5, hrand)

GUI9

原文：http://www.cnblogs.com/wangh0802PositiveANDupward/p/4593297.html

[cdec0645add3fc3c328197dda5c76203.png]: /images/20221022/dea27a5f1c4d47a0bbe2fbed7d01ebe2.png
[81178cc93a2a3bb5048d90d76e7ec935.png]: /images/20221022/a0c1a9ba60f54b9998ca0005d72831ee.png