Rotating a 3D sphere through user interface
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Hey all, I am new to MATLAB and wanted to create a program with a 3-D sphere using a .png file as its surface texture while allowing a user to rotate it by use of a button.
by Julian Francisco and want to do something similar, but instead of a sphere create from MATLAB commands, wanted to use the .png. I've tried to change the 'surface' texture to the .png but it doesn't work. Can someone please show me how to do this?
Thanks!
function ex2
global state;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%GUI Controls %%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
fh = figure('Menu','none','Toolbar','none','Units','characters',...
'Renderer','OpenGL');
hPanAni = uipanel('parent',fh,'Units','characters','Position',...
[22.6 10.4 53 23],'title','Controls','FontSize',11,...
'FontAngle','italic','FontWeight','bold');
hIniAni = uicontrol(hPanAni,'Style','pushbutton','Units','normalized',...
'Position',[0.14 0.75 0.5 0.12],'String','Rotate',...
'FontSize',10,'Callback',@hIniAniCallback);
hFinAni = uicontrol(hPanAni,'Style','pushbutton','Units','normalized',...
'Position',[0.14 0.5 0.5 0.12],'String','Stop',...
'FontSize',10,'Callback',@hFinAniCallback);
hResetAni = uicontrol(hPanAni,'Style','pushbutton','Units','normalized',...
'Position',[0.14 0.25 0.5 0.12],'String','Reset',...
'FontSize',10,'Callback',@hResetAniCallback);
hPantSim = uipanel('Parent',fh,'Units','characters',...
'Position',[107.87 8 157.447 42],'title',...
'Screen','FontSize',11,'FontAngle','italic',...
'FontWeight','bold','BorderType','none');
hPantSimInt = uipanel('Parent',hPantSim,'Units','normalized','Position',...
[0 0 1 1],'BorderType','line','BackgroundColor','k');
axes('Parent',hPantSimInt,'Units','normalized','Position',[0 0 1 1]);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%Placement of Stars %%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
stars = rand(1000,2);
scatter(stars(:,1),stars(:,2),6,'w','Marker','+');
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
axis off;
ah4 = axes('Parent',hPantSimInt,'Units','normalized','Position',...
[0 0 1 1],'Color','none','Visible','off','DataAspectRatio',...
[1 1 1],'NextPlot','add');
hgrot = hgtransform('Parent',ah4);
T1 = 0:pi/1000:2*pi;
Fin = numel(T1);
if (Fin>1000)
Incr = floor(Fin/1000);
else
Incr = 1;
end
Y = zeros(numel(T1),3);
Y(:,1) = 7000*cos(T1);
Y(:,2) = 7000*sin(T1);
R_esf = 6378;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%Draw Sphere %%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
[x_esf,y_esf,z_esf] = sphere(50);
x_esf = R_esf*x_esf;
y_esf = R_esf*y_esf;
z_esf = R_esf*z_esf;
xmin = min(x_esf);
xmax = max(z_esf);
ymin = min(y_esf);
ymax = max(y_esf);
zmin = min(z_esf);
zmax = max(z_esf);
s1 =surf(x_esf,y_esf,z_esf);
I=imread('mar-1.png');
I=double(I)/255;
colormap(jet);
props.EdgeColor = 'none';
props.CData = [1 0 1 1 0 1 1 0 1];
props.CDataMapping = 'scaled';
set(s1,'FaceColor','texturemap','cdata',I)
props.FaceColor = 'texturemap';
props.Parent = hgrot;
surface(x_esf,y_esf,z_esf,props);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
handles.psat = line('parent',ah4,'XData',Y(1,1), 'YData',Y(1,2),...
'ZData',Y(1,3),'Marker','o', 'MarkerSize',10,'MarkerFaceColor','w');
handles.tray = line('parent',ah4,'XData',Y(1,1), 'YData',Y(1,2),...
'ZData',Y(1,3),'LineWidth',1,'Color','y');
set(ah4,'XLim',[min([-R_esf,xmin]) max([R_esf,xmax])],'YLim',...
[min([-1.55*R_esf,ymin]) max([1.55*R_esf,ymax])],'ZLim',[min([-1.55*R_esf,zmin]) ...
max([1.55*R_esf,zmax])]);
rotate3d on;
zoom off;
view([0 -10]);
k = 2;
ind_ini = 0;
state = 0;
az = 0;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%Rotate Callback %%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function hIniAniCallback(hObject,evt)
tic;
if (ind_ini == 1)
return;
end
ind_ini = 1;
state = 0;
%Rotating sphere
while (k<=Fin)
az = az + 0.01745329252;
set(hgrot,'Matrix',makehgtform('zrotate',az));
%Tracing Line
set(handles.tray,'XData',Y(1:k,1),'YData',Y(1:k,2),'ZData',...
Y(1:k,3));
%Tracing Ball
set(handles.psat,'XData',Y(k,1),'YData',Y(k,2),'ZData',Y(k,3));
pause(eps);
if (k == Fin)
toc;
end
k = k + Incr;
if (state == 1)
state = 0;
break;
end
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%Stop Callback %%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function hFinAniCallback(hObject,evt)
ind_ini = 0;
state = 1;
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%Reset Callback %%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function hResetAniCallback(hObject,evt)
ind_ini = 0;
state = 1;
k = 2;
az = 0;
%%%Reset Axes
set(hgrot,'Matrix',makehgtform('zrotate',az));
set(handles.tray,'XData',Y(1,1), 'YData',Y(1,2),'ZData',Y(1,3));
set(handles.psat,'XData',Y(1,1), 'YData',Y(1,2),'ZData',Y(1,3));
view([0 -10]);
end
end
6 Comments
Walter Roberson
on 27 Apr 2012
Could you show us how you set up the surface texture?
Daimien Burks
on 28 Apr 2012
Daimien Burks
on 28 Apr 2012
Jan
on 28 Apr 2012
Please explain, what "it doesn't work" exactly means.
Daimien Burks
on 28 Apr 2012
Daimien Burks
on 28 Apr 2012
Accepted Answer
Daimien Burks
on 28 Apr 2012
More Answers (0)
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on 27 Apr 2012
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