matlab 拖动曲线,Matlab屏幕交互取点并作三次样条曲线 matlab GUI:屏幕取点+三次样条曲线+屏幕拖动 | 学步园...

函数实现屏幕拖动：

function figure1_WindowButtonDownFcn(hObject, eventdata, handles)

set(gcf,'Pointer','fleur');

handles.BtnDown=1;

p=get(gca,'currentpoint');

handles.BtnDownPt(1)=p(1);

handles.BtnDownPt(2)=p(3);

guidata(hObject, handles);

function figure1_WindowButtonDownFcn(hObject, eventdata, handles)

set(gcf,'Pointer','fleur');

handles.BtnDown=1;

p=get(gca,'currentpoint');

handles.BtnDownPt(1)=p(1);

handles.BtnDownPt(2)=p(3);

guidata(hObject, handles);

function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)

p=get(gca,'currentpoint');

if handles.BtnDown==1

center(1)=handles.center(1)-p(1)+handles.BtnDownPt(1);

center(2)=handles.center(2)-p(3)+handles.BtnDownPt(2);

axis([0 1 0 1]+[center(1) center(1) center(2) center(2)]);

handles.center=center;

guidata(hObject, handles);

end

p(1)=vpa(p(1),3);

p(3)=vpa(p(3),3);

set(findobj(gcf,'tag','text8'),'String',p(1));

set(findobj(gcf,'tag','text9'),'String',p(3));

程序效果图：