Matlab GUI给出的致命错误

时间：2011-07-27 20:58:05

标签： user-interface matlab

已编辑的帖子

这些是我使用您的模板创建的新功能来帮助我。 发生的事情虽然代码工作正常，但是“检查光标”框并不在轴的顶部。事实上，他们离我很远。我用set（hAx，'Units'，'pixels'）一次使用disp（axPos），然后用它注释掉一次。它显示：

1 

 169.0000   71.0000  126.0000   51.0000
 94.0000  122.0000  126.0000   51.0000
 19.0000   71.0000  126.0000   51.0000
 94.0000   20.0000  126.0000   51.0000

哪个是轴的GUIDE坐标，而不是为'Currentpoint'显示的坐标

2 

33.6000    5.3846   25.2000    3.9231
18.6000    9.3077   25.2000    3.9231
3.6000    5.3846   25.2000    3.9231
18.6000    1.4615   25.2000    3.9231

我不知道它们来自哪里但距离它们需要的位置更近但是左边是60像素。

以下是代码：

function HVACSM_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to HVACSM (see VARARGIN)

% Choose default command line output for HVACSM
handles.output = hObject;
NUM = 4;

imgOff1 = imread('cond.png');
imgOn1 = imread('condH.png');

imgOff2 = imread('comp.png');
imgOn2 = imread('compH.png');

imgOff3 = imread('evap.png');
imgOn3 = imread('evapH.png');

imgOff4 = imread('exp.png');
imgOn4 = imread('expH.png');

imgOff = cell(1,NUM);
imgOff{1} = imgOff1;
imgOff{2} = imgOff2;
imgOff{3} = imgOff3;
imgOff{4} = imgOff4;

imgOn = cell(1,NUM);
imgOn{1} = imgOn1;
imgOn{2} = imgOn2;
imgOn{3} = imgOn3;
imgOn{4} = imgOn4;

%# setup axes
hAx = zeros(1,NUM);
hImg = zeros(1,NUM);
hAx = [handles.axes1 handles.axes2 handles.axes3 handles.axes4];
hImg(1) = imagesc(imgOff{1}, 'Parent',hAx(1));
hImg(2) = imagesc(imgOff{2}, 'Parent',hAx(2));
hImg(3) = imagesc(imgOff{3}, 'Parent',hAx(3));
hImg(4) = imagesc(imgOff{4}, 'Parent',hAx(4));
set(hAx, 'XTick',[], 'YTick',[],'Box', 'on')

%# get corner-points of each axis
set(hAx, 'Units','pixels')
axPos = cell2mat( get(hAx,'Position') );
disp(axPos)
p = zeros(5,2,NUM);
for k=1:NUM
    p(:,:,k) = bsxfun(@plus, axPos(k,1:2), ...
        [0 0; axPos(k,3) 0; axPos(k,3:4); 0 axPos(k,4); 0 0]);
end
handles.p = p;
handles.hAx = hAx;
handles.hImg = hImg;
handles.imgOff = imgOff;
handles.imgOn = imgOn;
% Update handles structure
guidata(hObject, handles);



function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

pos = get(hObject,'CurrentPoint');%CurrentPoint
posx = pos(1); posy = pos(2);

%Display to check to see if the position is working
posx = num2str(posx);
posy = num2str(posy);

set(handles.Xpos,'String',posx);
set(handles.Ypos,'String',posy);

p = handles.p;
hImg = handles.hImg;
hAx = handles.hAx;
imgOff = handles.imgOff;
imgOn = handles.imgOn;


%# for each axis, determine if we are inside it
    for i=1:numel(hImg)
        if inpolygon(pos(1),pos(2), p(:,1,i),p(:,2,i))
            set(hImg(i), 'CData',imgOn{i})
            set(hAx(i), 'LineWidth',3, 'XColor','r', 'YColor','r')
        else
            set(hImg(i), 'CData',imgOff{i})
            set(hAx(i), 'LineWidth',1, 'XColor','k', 'YColor','k')
        end
    end

enter image description here 这些是hitboxes与原始代码“set（hAx，'Units'，'pixels'）”

注意*其他人离屏幕右上方，或者是。

enter image description here 这些是具有更改代码“set（hAx，'Units'，'characters'）”的命中框“

注意*这与注释掉代码时完全相同。

8月2日测试

附录 原帖

我在运行GUI [致命错误]后收到此错误：-1：-1：文件过早结束。

在这段代码中发生：

function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)

% hObject handle to figure1 (see GCBO)

% eventdata reserved - to be defined in a future version of MATLAB

% handles structure with handles and user data (see GUIDATA)

pos = get(hObject,'CurrentPoint');

%CurrentPoint

posx = pos(1); posy = pos(2);

%Display to check to see if the position is working

posx = num2str(posx); posy = num2str(posy);

 set(handles.Xpos,'String',posx); set(handles.Ypos,'String',posy);

%If mouse over then update the immage

if ((115 < pos(1)) && (pos(1) < 125) && (7 < pos(2)) && (pos(2) < 11))
axes(handles.axes1);
imshow('condH.png')  
else 
 axes(handles.axes1);
imshow('cond.png')

 end

 if ((90 < pos(1)) && (pos(1) < 100) && (7 < pos(2)) && (pos(2) < 11))
 axes(handles.axes2);
 imshow('compH.png')  
 else
axes(handles.axes2);
 imshow('comp.png')  
 end

if ((80 < pos(1)) && (pos(1) < 90) && (7 < pos(2)) && (pos(2) < 11))
axes(handles.axes3);
imshow('evapH.png')  
else
 axes(handles.axes3);
 imshow('evap.png')  
 end

if ((90 < pos(1)) && (pos(1) < 100) && (2 < pos(2)) && (pos(2) < 5))
axes(handles.axes4);
imshow('expH.png')  
else
 axes(handles.axes4);
 imshow('exp.png')  
end

通常，GUI运行正常，直到我通过鼠标悬停在预定的框上来触发其中一个if语句。然后GUI停止响应，并且在Matlab重新启动之前不会再次打开。

1 个答案:

答案 0 :(得分：2)

很难说在没有看到整个代码的情况下为什么MATLAB会崩溃。出于这个原因，我在下面写了一个简短的例子。它说明了如何使用rollover effect回调编写模拟WindowButtonMotionFcn的GUI：

function testRolloverGUI()
    %# prepare rollover image
    imgOff = imread('coins.png');
    imgOn = imcomplement(imgOff);

    %# setup figure
    hFig = figure('Resize','off', 'MenuBar','none', 'Color','w');
    set(hFig, 'WindowButtonMotionFcn',@figWindowButtonMotionFcn);
    hTxt = uicontrol('Style','text', 'String','(0,0)');

    %# setup axes
    NUM = 4;
    hAx = zeros(1,NUM);
    hImg = zeros(1,NUM);
    for k=1:NUM
        hAx(k) = subplot(2,2,k);
        hImg(k) = imagesc(imgOff, 'Parent',hAx(k));
    end
    colormap(gray)
    set(hAx, 'XTick',[], 'YTick',[], 'Box','on')

    %# get corner-points of each axis
    set(hAx, 'Units','pixels')
    axPos = cell2mat( get(hAx,'Position') );
    p = zeros(5,2,NUM);
    for k=1:NUM
        p(:,:,k) = bsxfun(@plus, axPos(k,1:2), ...
            [0 0; axPos(k,3) 0; axPos(k,3:4); 0 axPos(k,4); 0 0]);
    end

    %# callback function
    function figWindowButtonMotionFcn(hObj,ev)
        %# get mouse current position
        pos = get(hObj, 'CurrentPoint');
        set(hTxt, 'String',sprintf('(%g,%g)',pos))

        %# for each axis, determine if we are inside it
        for i=1:numel(hImg)
            if inpolygon(pos(1),pos(2), p(:,1,i),p(:,2,i))
                set(hImg(i), 'CData',imgOn)
                set(hAx(i), 'LineWidth',3, 'XColor','r', 'YColor','r')
            else
                set(hImg(i), 'CData',imgOff)
                set(hAx(i), 'LineWidth',1, 'XColor','k', 'YColor','k')
            end
        end
    end
end

screenshot

EDIT＃2

为了回应您的评论，我在GUIDE中重新创建了示例。以下是主要部分：

%# --- Executes just before rollover is made visible.
function rollover_OpeningFcn(hObject, eventdata, handles, varargin)

    %# Choose default command line output for rollover
    handles.output = hObject;

    %# allocate
    NUM = 4;
    imgOff = cell(1,NUM);
    imgOn = cell(1,NUM);
    hImg = zeros(1,NUM);

    %# read images
    imgOff{1} = imread('coins.png');
    imgOn{1} = imcomplement(imread('coins.png'));
    imgOff{2} = imread('coins.png');
    imgOn{2} = imcomplement(imread('coins.png'));
    imgOff{3} = imread('coins.png');
    imgOn{3} = imcomplement(imread('coins.png'));
    imgOff{4} = imread('coins.png');
    imgOn{4} = imcomplement(imread('coins.png'));

    %# setup axes
    hAx = [handles.axes1 handles.axes2 handles.axes3 handles.axes4];
    for i=1:NUM
        hImg(i) = imagesc(imgOff{i}, 'Parent',hAx(i));
    end
    colormap(hObject, 'gray')
    set(hAx, 'XTick',[], 'YTick',[], 'Box','on')

    %# make sure axes units match that of the figure
    set(hAx, 'Units',get(hObject, 'Units'))

    %# check axes parent container (figure or panel)
    hAxParents = cell2mat( get(hAx,'Parent') );
    idx = ismember(get(hAxParents,'Type'), 'uipanel');
    ppos = cell2mat( get(hAxParents(idx), 'Position') );

    %# adjust position relative to parent container
    axPos = cell2mat( get(hAx,'Position') );
    axPos(idx,1:2) = axPos(idx,1:2) + ppos(:,1:2);

    %# compute corner-points of each axis
    p = zeros(5,2,NUM);
    for k=1:NUM
        p(:,:,k) = bsxfun(@plus, axPos(k,1:2), ...
            [0 0; axPos(k,3) 0; axPos(k,3:4); 0 axPos(k,4); 0 0]);
    end

    %# store in handles structure
    handles.p = p;
    handles.hAx = hAx;
    handles.hImg = hImg;
    handles.imgOff = imgOff;
    handles.imgOn = imgOn;

    %# Update handles structure
    guidata(hObject, handles);


%# --- Executes on mouse motion over figure - except title and menu.
function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)

    %# CurrentPoint
    pos = get(hObject,'CurrentPoint');
    set(handles.text1,'String',sprintf('(%g,%g)',pos));

    %# for each axis, determine if we are inside it
    for i=1:numel(handles.hImg)
        if inpolygon(pos(1),pos(2), handles.p(:,1,i),handles.p(:,2,i))
            set(handles.hImg(i), 'CData',handles.imgOn{i})
            set(handles.hAx(i), 'LineWidth',3, 'XColor','r', 'YColor','r')
        else
            set(handles.hImg(i), 'CData',handles.imgOff{i})
            set(handles.hAx(i), 'LineWidth',1, 'XColor','k', 'YColor','k')
        end
    end

GUI与以前的组件基本相同，只是轴包含在uipanel内（类似于GUI的屏幕截图）：

GUIDE

有几点需要注意：

  • 由于我们的目标是将图形的CurrentPoint与轴位置进行比较，因此它们与图的Units具有相同的set(hAx, 'Units',get(hObject, 'Units'))非常重要，因此：Position

  • 根据documentation，轴axPos(idx,1:2) = axPos(idx,1:2) + ppos(:,1:2);属性相对于其父容器，并且因为四个轴位于面板内，我们需要相应地调整它们的位置：{{ 1}}

GUI_in_action

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