我需要一个函数,它给出了我的图形窗口中点击的坐标和点击的鼠标按钮(左,中,右或按键),但我仍然想使用uicontrol() - 按钮。我目前正在使用ginput()工作正常,但按钮回调函数未执行,因此我认为ginput()会覆盖它们:( 非常感谢!
编辑:来自matt(第二个花盆)的“编辑”代码执行此操作,但只是不提供单击WHICH按钮的功能: http://www.mathworks.com/matlabcentral/answers/7528-ginput-in-a-gui :(
修改 最后我自己弄清楚了。我希望你喜欢它。我更改了matt的原始代码:
function varargout = ginput_ax(ha,n)
if nargin<2
n=1;
end
k = 0;
button = 0;
xy = zeros(n,2);
hf = get(ha,'parent');
figure(hf);
set(hf,'WindowButtonMotionFcn',@changepointer)
set(ha,'ButtonDownFcn',@getpoints)
hp = get(ha,'children');
ht = get(hp,'hittest');
set(hp,'hittest','off')
axlim = get(ha,'Position');
fglim = get(hf,'Position');
x1 = axlim(1)*fglim(3) + fglim(1);
x2 = (axlim(1)+axlim(3))*fglim(3) + fglim(1);
y1 = axlim(2)*fglim(4) + fglim(2);
y2 = (axlim(2)+axlim(4))*fglim(4) + fglim(2);
waitfor(hf,'WindowButtonMotionFcn',[])
if iscell(ht)
for jj=1:length(ht)
set(hp(jj),'hittest',ht{jj})
end
else
set(hp,'hittest',ht)
end
% Mouse-Button recognition...
if(strcmp(button, 'normal'))
button = 1; % left
elseif(strcmp(button, 'extend'))
button = 2; % right
elseif(strcmp(button, 'alt'))
button = 3; % middle
else
button = 4; % double click any mousebutton
end
if nargout==3
varargout{1} = xy(:,1);
varargout{2} = xy(:,2);
varargout{3} = button;
elseif nargout==2
varargout{1} = xy(:,1);
varargout{2} = xy(:,2);
else
varargout{1} = xy;
end
function changepointer(~,~)
pntr = get(0,'PointerLocation');
if pntr(1)>x1 && pntr(1)<x2 && pntr(2)>y1 && pntr(2)<y2
set(hf,'Pointer','crosshair')
else
set(hf,'Pointer','arrow')
end
end
function getpoints(src,evnt)
cp = get(src,'CurrentPoint');
button = get(hf, 'SelectionType');
k = k+1;
xy(k,:) = cp(1,1:2);
if k==n
set(hf,'Pointer','arrow')
set(hf,'WindowButtonMotionFcn',[])
set(ha,'ButtonDownFcn',[])
end
end
end
只需将其复制到“ginput_ax.m”等新文件中,然后通过
调用即可figure
ginput_ax(gca, N)
而N
是捕获的点数!甚至比ginput更好,因为uicontrol按钮工作,双击识别并且十字准线指针仅显示在实际绘图中,而不是在图窗口中的绘图周围的灰色边框上:)希望你喜欢它!
答案 0 :(得分:1)
我自己找到了一个好的工作方案,它甚至比ginput更好,因为十字准线只显示在实际的图中(因此在轴内)。请参阅上面的编辑!