MATLAB set('XData'....)

我在更新绘图时遇到问题。基本上，我有一个函数，可以创建一个有3个子图形的图形。然后我有另一个函数，它运行创建图形函数，然后更新绘图。更新很重要，这样我就不会在每个循环中创建新的图形，因为它是三维数据，需要一段时间才能加载。

问题出在我的第二个次要情节上。我使用slice（）加载3个图像（3个切片），然后还想绘制一个位置向量。我最初将位置向量设置为（0,0,0），然后我想我可以通过设置"XData"、"YData"来在循环中更新它。。。至其各自的值。由于某些原因，它不起作用，并为输入参数抛出错误"Undefined function‘XData"类型为"double"。"请帮忙，下面是代码，谢谢！！！

注---错误在于"%刷新绘图"后的更新绘图功能

初始图

function [Fig] = EndoSliceViewer_createFigure(Figindex,DICOMparam)
%This function creates and returns a Figure object to visualizes DICOM data
%in the plane orthogonal to the endoscopic view, the RGB view of the camera
%and the orientation of the navigation
%set resolution for Endo Slice Plot
Fig.resolEndoSlice=300; 
Fig.resolEndoRGB=[720 1280]; 
Fig.resolEndoNavi=[500 500 500]; 
%init figure on screen
Fig.fig=figure(Figindex); gcf;
set(Fig.fig,'Position',[50 500 1500 500],'Name','Endo Slice Viewer');
%set(Fig.fig,'KeyPressFcn','global kpressed; global Fig; kpressed = get(Fig.fig,''CurrentChar'');');
Fig.sub1=subplot(1,3,1);
Fig.sub1im=image(uint8(zeros(Fig.resolEndoRGB(1), Fig.resolEndoRGB(2),3)));
title('Endo Camera View');
daspect([1 1 1]);
Fig.sub2=subplot(1,3,2);
Fig.sub2im=plot3(0,0,0);
h=slice(DICOMparam.Vd,DICOMparam.Cx,DICOMparam.Cy,DICOMparam.Cz);
colormap bone;
set(h,'FaceColor','interp',...
    'EdgeColor','none',...
    'DiffuseStrength',.8)
title('Navigation View');
xlim([-0.2*Fig.resolEndoNavi(1),  1.2*Fig.resolEndoNavi(1)]);
ylim([-0.2*Fig.resolEndoNavi(2),  1.2*Fig.resolEndoNavi(2)]);
zlim([-0.2*Fig.resolEndoNavi(3),  1.2*Fig.resolEndoNavi(3)]);
xlabel('X [vox]');
ylabel('Y [vox]');
zlabel('Z [vox]');
daspect([1 1 1]);
Fig.sub3=subplot(1,3,3);
Fig.sub3im=imagesc(zeros(Fig.resolEndoSlice, Fig.resolEndoSlice));
title('Endo Slice View');
xlim([0 Fig.resolEndoSlice]);
ylim([0 Fig.resolEndoSlice]);
xlabel('Xendo [vox]');
ylabel('Yendo [vox]');
daspect([1 1 1]);
colormap bone
drawnow;
%potentially: add subplot for navigation position display later
end

更新绘图

function [  ] = EndoSliceViewerJP( Naviparam,  DICOMparam)
%RGBparam should be included later - add +1 to nargin values 
%visualizes: 
%1st: RGB camera Live view 
%2nd: Orientation and Position of Navigation System
%3rd: DICOM Slice relative to navigated Endoscope in a and its orientation
%in a Slice perpendicular to the endoscope
%assumes Navigation system running with referenced tool (Naviparam.tool=4 or Naviparam.tool=5)
%currently this plots slices according to Endoscope position, could add
%vector in plot that shows orientation of the scope...
disp('Endo Slice Viewer');
disp('" ": exit on space key');
global kpressed;
kpressed = 0;
global Fig
Fig=EndoSliceViewer_createFigure(1,DICOMparam);
set(Fig.fig,'KeyPressFcn','global kpressed; global Fig; kpressed = get(Fig.fig,''CurrentChar'');');
%create matrices and filter for smoothing of Endo Slice Data
xrel=-(ones(Fig.resolEndoSlice,1)*(1:Fig.resolEndoSlice)-Fig.resolEndoSlice/2)';
yrel=-(ones(Fig.resolEndoSlice,1)*(1:Fig.resolEndoSlice)-Fig.resolEndoSlice/2);
SLimage=zeros(Fig.resolEndoSlice,Fig.resolEndoSlice);
PosVec=zeros(Fig.resolEndoSlice,Fig.resolEndoSlice,3);
gfilt = fspecial('gaussian',5,1.5);
depth = 50;

exitflag = 0;
while (exitflag == 0)
     %check on keyboard input
     if kpressed ~= 0
        switch kpressed
            case 'r'
                depth=depth+2
            case 'f'
                depth=depth-2
            case ' '
                exitflag = 1;
                disp('**** Exit Endo Slice Viewer ****')
        end
        kpressed = 0;
     end
if (nargin>=1) %Naviparam is passed - update Navigation View
     %capture new navigation data
     Naviparam=Navi_acquire(Naviparam);
     Naviparam=Navi_calc_data(Naviparam);
     %refreshN avigation View
     %NOT YET IMPLEMENTED: UPDATE NAVIGATION PLOT 
     if (nargin==2) %DICOMparam is also passed - update EndoSlice View
         EndoVecX=inv(DICOMparam.calib.navi2dicom(1:3,1:3))*inv(Naviparam.data.Endo_RefHomMat(1:3,1:3))*[1;0;0];
         EndoVecY=inv(DICOMparam.calib.navi2dicom(1:3,1:3))*inv(Naviparam.data.Endo_RefHomMat(1:3,1:3))*[0;1;0];
         EndoVecZ=inv(DICOMparam.calib.navi2dicom(1:3,1:3))*inv(Naviparam.data.Endo_RefHomMat(1:3,1:3))*[0;0;-1];
         disp(Naviparam.data.Endo_RefHomMat(1:3,1:3));
         EndoVecX=EndoVecX/norm(EndoVecX);
         EndoVecY=EndoVecY/norm(EndoVecY);
         EndoVecZ=EndoVecZ/norm(EndoVecZ);
         mask=ones(Fig.resolEndoSlice,Fig.resolEndoSlice);
         S=[DICOMparam.Sx; DICOMparam.Sy; DICOMparam.Sz];
         DICOMPos = DICOMparam.calib.navi2dicom*[Naviparam.data.Endo_RefOffsetPosVec;1];
         for i=1:3
             %Point on Plane defined by Endo Position plus distance*Viewing direction vector
             PosVec(:,:,i)=(DICOMPos(i)+depth*EndoVecZ(i))+xrel*EndoVecX(i)+yrel*EndoVecY(i);
             %limit positions to integer values inside DICOM data cube
             PosVec(:,:,i)=round(PosVec(:,:,i));
             PosVec(:,:,i)=min(max(PosVec(:,:,i),1),S(i));
             %create mask to set Points outside the data cube to 0
             mask=double(PosVec(:,:,i)>1).*double(PosVec(:,:,i)<S(i).*mask(:,:));
         end
         %access data cube via indexed labelling
         XposTemp=PosVec(:,:,1); YposTemp=PosVec(:,:,2); ZposTemp=PosVec(:,:,3);
         indexTemp=sub2ind(size(DICOMparam.Vd), XposTemp(:), YposTemp(:),ZposTemp(:));
         SLimage(:)=DICOMparam.Vd(indexTemp(:));
         SLimage=SLimage.*mask;
         SLimage=imfilter(SLimage,gfilt);
         %refresh plot
         set(Fig.sub3im, 'cdata', SLimage);
     axes(Fig.sub2);
     set(lineseries, 'XData', DICOMPos(1), 'YData', DICOMPos(2), 'ZData', DICOMPos(3));
     set(lineseries, 'Marker', '*', 'Color', 'b');
     disp(DICOMPos);
     end
end
%RGBparam is always passed - update RGB camera View
%capture new RGB data
%handles.RGBparam=RGB_acquire(handles.RGBparam);
%refresh RGB camera View
%set(Fig.sub1im, 'CData', imresize(handles.RGBparam.image,[Fig.resolEndoRGB(1) Fig.resolEndoRGB(2)]));  

drawnow;
end
close(Fig.fig);
clear global;

end