matlab图形用户界面_gui.pptxVIP

数学实验九MATLAB图形用户界面（ GUI）  句柄图形操作 图形用户界面（GUI) 句柄图形操作 基本概念 句柄图形（对底层图形例程集合的总 称，并生成图形） 对象（一组紧密相关，形成统一整体 的数据结构和函数的集合） 句柄（每一个对象的唯一数据标识） 句柄图形对象 对象的属性：每一个对象都具有与特定对象 相应的特性，不同的对象的属性可由函数 Get获得，Set进行设置 对象属性包括：属性名和属性值 如：Hd=figure(‘color’,’white’) H=figure Get(H) BackingStore = on CloseRequestFcn = closereq Color = [0.8 0.8 0.8] Colormap = [ (64 by 3) double array] CurrentAxes = [] CurrentCharacter = CurrentObject = [] CurrentPoint = [0 0] Dithermap = [ (64 by 3) double array] DithermapMode = manual FixedColors = [ (3 by 3) double array] IntegerHandle = on 例 InvertHardcopy = on KeyPressFcn = MenuBar = figure MinColormap = [64] Name = NextPlot = add NumberTitle = on PaperUnits = inches PaperOrientation = portrait PaperPosition = [0.25 2.5 8 6] PaperPositionMode = manual PaperSize = [8.5 11] PaperType = usletter Pointer = arrow PointerShapeCData = [ (16 by 16) double array] PointerShapeHotSpot = [1 1] Position = [64 36 672 504] Renderer = painters RendererMode = auto Resize = on ResizeFcn = SelectionType = normal ShareColors = on Units = pixels WindowButtonDownFcn = WindowButtonMotionFcn = WindowButtonUpFcn = WindowStyle = normal ButtonDownFcn = Children = [] Clipping = on CreateFcn = DeleteFcn = BusyAction = queue HandleVisibility = on HitTest = on Interruptible = on Parent = [0] Selected = off SelectionHighlight = on Tag = Type = figure UIContextMenu = [] UserData = [] Visible = on h=plot(x,y,x,z) 返回句柄h(1)和h(2) Set(h(1),’color’,[1 0.3 0.5],’linewidth’,3) Set(h(2),’color’,[1 0.5 0.5],’linewidth’,4) 获得当前对象句柄(最常用对象） H1=gcf； get current figure（gcf for short) H2=gca； get current axis (gca) H3=gco; get current object (gco) Get(H1,’type’) Get(H2,’type’) Get(0)……根对象属性 获得当前所有对象句柄 H=Findobj Findobj(‘Property’,PropertyValue) 位置（position)和单位(units) Units:inches;centimeters 根对象的位置属性： Position由ScreenSize代替 [left,bottom][1,1] [width,height]屏幕实际尺寸 例：get(0,screensize) ans =