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unction varargout = preview(varargin)
% PREVIEW M-file for preview.fig
% PREVIEW, by itself, creates a new PREVIEW or raises the
existing
% singleton*.
%
% H = PREVIEW returns the handle to a new PREVIEW or the handle
to
% the existing singleton*.
%
% PREVIEW('CALLBACK',hObject,eventData,handles,...) calls the
local
% function named CALLBACK in PREVIEW.M with the given input
arguments.
%
% PREVIEW('Property','Value',...) creates a new PREVIEW or
raises the
% existing singleton*. Starting from the left, property value
pairs are
% applied to the GUI before preview_OpeningFunction gets called.
An
% unrecognized property name or invalid value makes property
application
% stop. All inputs are passed to preview_OpeningFcn via
varargin.
%
% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows
only one
% instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Edit the above text to modify the response to help preview

% Last Modified by GUIDE v2.5 06-May-2007 05:17:38

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @preview_OpeningFcn, ...
'gui_OutputFcn', @preview_OutputFcn, ...
'gui_LayoutFcn', [] , ...
'gui_Callback', []);
if nargin && ischar(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end% End initialization code - DO NOT EDIT

% --- Executes just before preview is made visible.
function preview_OpeningFcn(hObject, eventdata, handles, varargin)

% This function has no output args, see OutputFcn.
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% varargin command line arguments to preview (see VARARGIN)

%Xo=input('Enter the Table Width: ');
%Yo=input('Enter the Table Width: ');
%uiwait(hMainFigure);

% Choose default command line output for preview
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes preview wait for user response (see UIRESUME)
% uiwait(handles.figure1);

% --- Outputs from this function are returned to the command line.
function varargout = preview_OutputFcn(hObject, eventdata, handles)
% varargout cell array for returning output args (see VARARGOUT);
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;

% --- Executes during object creation, after setting all properties.
function text1_CreateFcn(hObject, eventdata, handles)
% hObject handle to text1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns
called

% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)

% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

%delete(hMainFigure);

% --- Executes on

In article < XXXX@XXXXX.COM >,

[...]

Was there a question in there?
--
Is there any thing whereof it may be said, See, this is new? It hath
been already of old time, which was before us. -- Ecclesiastes

ahihahi12345 wrote:
e=angle*pi/180; g=9.81;
Af=f*g;
To=Vo/Af;
s=(0:.1:2*pi);
r=0.02;
t=0.02;
P=Xo+i*Yo; % represent the positon of billiard
x=real(P)+r*cos(s);
y=imag(P)+r*sin(s);
h=fill(x,y,rand(1,3));
set(h,'EraseMode','xor');
k=1;
Vx=Vo
while k
pause(0.1);
P=P+(Vx*t-(Af*t*t/2))*exp(i*e);
Vx=Vx-Af*t;

if real(P)<r;
P=2*r-real(P)+i*(imag(P));
e=pi-rand*e;
Vx=c*Vx;
end
if real(P)>a-r;
P=2*(a-r)-real(P)+i*(imag(P));
e=pi-rand*e;
Vx=c*Vx;
end
if imag(P)<r;
P=real(P)+i*(2*r-imag(P));
e=-rand*e;
Vx=c*Vx;
end
if imag(P)>b-r;
P=real(P)+i*(2*(b-r)-imag(P));
e=-rand*e;
Vx=c*Vx;
end
if Vx < 0;
k=0;
end
x=real(P)+r*cos(s);
y=imag(P)+r*sin(s);
set(h,'xdata',x,'ydata',y,'facecolor',rand(1,3));
end

% --- Executes during object creation, after setting all properties.
function axes1_CreateFcn(hObject, eventdata, handles)

% hObject handle to axes1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns
called

I would like to ask,what can i do with the currentpoint or other
functions so that when i click on anywhere in the axes then the
billiard will appear on that position??

pls help.......

ahihahi12345 wrote:
e=angle*pi/180; g=9.81;
Af=f*g;
To=Vo/Af;
s=(0:.1:2*pi);
r=0.02;
t=0.02;
P=Xo+i*Yo; % represent the positon of billiard
x=real(P)+r*cos(s);
y=imag(P)+r*sin(s);
h=fill(x,y,rand(1,3));
set(h,'EraseMode','xor');
k=1;
Vx=Vo
while k
pause(0.1);
P=P+(Vx*t-(Af*t*t/2))*exp(i*e);
Vx=Vx-Af*t;

if real(P)<r;
P=2*r-real(P)+i*(imag(P));
e=pi-rand*e;
Vx=c*Vx;
end
if real(P)>a-r;
P=2*(a-r)-real(P)+i*(imag(P));
e=pi-rand*e;
Vx=c*Vx;
end
if imag(P)<r;
P=real(P)+i*(2*r-imag(P));
e=-rand*e;
Vx=c*Vx;
end
if imag(P)>b-r;
P=real(P)+i*(2*(b-r)-imag(P));
e=-rand*e;
Vx=c*Vx;
end
if Vx < 0;
k=0;
end
x=real(P)+r*cos(s);
y=imag(P)+r*sin(s);
set(h,'xdata',x,'ydata',y,'facecolor',rand(1,3));
end

% --- Executes during object creation, after setting all properties.
function axes1_CreateFcn(hObject, eventdata, handles)

% hObject handle to axes1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns
called

I would like to ask,what can i do with the currentpoint or other
functions so that when i click on anywhere in the axes then the
billiard will appear on that position??

pls help.......

help ginput

In article < XXXX@XXXXX.COM >,





Instead of setting Xo and Yo to the constants 0.5 0.5,
set them to the coordinates you obtained by using
get(gcf,'CurrentPoint') . For this to work properly, ensure that
your axis coordinates are normalized so that you get values
in the range 0 through 1. set(gca, 'Units', 'normalized')

The code section I extracted the above from was named as if it
were the callback for a pushbutton rather than for a mouse.
To convert it for use with the mouse, make that code the callback
for the figure ButtonDownFcn property.

set(gcf,'ButtonDownFcn',@DropABallCallback);

--
Prototypes are supertypes of their clones. -- maplesoft

thanx......it really helps....

another thing is,what should i do in order when i press on the axes
then the ball appear on that position and then i press again to
determine the angle for that ball to move in that direction with
respect to the angle??

i tried angle=tan(Yo/Xo) , but it seems not so accurate and a bit
weird....

thanx......

try atan, and you will have to figure out the quadrant since it will
only give you +/- pi/2 for return range.

with
bit

does anybody knows how to set the point (0,0) in the middle of the
axes?? so that i can try to set the quadrant......or anybody has any
idea regarding the

(( determine the angle for that ball to move in that direction with
respect to the angle?? ))

pls help.......

anybody pls help.........





again
a

anybody pls help.........





again
a