gusucode.com > 基于matlab软件，实现双目视觉原理的摄像机标定，能根据各视场图像求内、外部参数 > 基于matlab软件，实现双目视觉原理的摄像机标定，能根据各视场图像求内、外部参数/TOOLBOX_calib/ginput4.m
function [out1,out2,out3] = ginput4(arg1)
[out1,out2,out3] = ginput(arg1);
return;
%GINPUT Graphical input from mouse.
% [X,Y] = GINPUT(N) gets N points from the current axes and returns
% the X- and Y-coordinates in length N vectors X and Y. The cursor
% can be positioned using a mouse (or by using the Arrow Keys on some
% systems). Data points are entered by pressing a mouse button
% or any key on the keyboard except carriage return, which terminates
% the input before N points are entered.
%
% [X,Y] = GINPUT gathers an unlimited number of points until the
% return key is pressed.
%
% [X,Y,BUTTON] = GINPUT(N) returns a third result, BUTTON, that
% contains a vector of integers specifying which mouse button was
% used (1,2,3 from left) or ASCII numbers if a key on the keyboard
% was used.
%
% Examples:
% [x,y] = ginput;
%
% [x,y] = ginput(5);
%
% [x, y, button] = ginput(1);
%
% See also GTEXT, UIRESTORE, UISUSPEND, WAITFORBUTTONPRESS.
% Copyright 1984-2006 The MathWorks, Inc.
% $Revision: 5.32.4.9 $ $Date: 2006/12/20 07:19:10 $
P = NaN*ones(16,16);
P(1:15,1:15) = 2*ones(15,15);
P(2:14,2:14) = ones(13,13);
P(3:13,3:13) = NaN*ones(11,11);
P(6:10,6:10) = 2*ones(5,5);
P(7:9,7:9) = 1*ones(3,3);
out1 = []; out2 = []; out3 = []; y = [];
c = computer;
if ~strcmp(c(1:2),'PC')
tp = get(0,'TerminalProtocol');
else
tp = 'micro';
end
if ~strcmp(tp,'none') && ~strcmp(tp,'x') && ~strcmp(tp,'micro'),
if nargout == 1,
if nargin == 1,
out1 = trmginput(arg1);
else
out1 = trmginput;
end
elseif nargout == 2 || nargout == 0,
if nargin == 1,
[out1,out2] = trmginput(arg1);
else
[out1,out2] = trmginput;
end
if nargout == 0
out1 = [ out1 out2 ];
end
elseif nargout == 3,
if nargin == 1,
[out1,out2,out3] = trmginput(arg1);
else
[out1,out2,out3] = trmginput;
end
end
else
fig = gcf;
figure(gcf);
if nargin == 0
how_many = -1;
b = [];
else
how_many = arg1;
b = [];
if ischar(how_many) ...
|| size(how_many,1) ~= 1 || size(how_many,2) ~= 1 ...
|| ~(fix(how_many) == how_many) ...
|| how_many < 0
error('MATLAB:ginput:NeedPositiveInt', 'Requires a positive integer.')
end
if how_many == 0
ptr_fig = 0;
while(ptr_fig ~= fig)
ptr_fig = get(0,'PointerWindow');
end
scrn_pt = get(0,'PointerLocation');
loc = get(fig,'Position');
pt = [scrn_pt(1) - loc(1), scrn_pt(2) - loc(2)];
out1 = pt(1); y = pt(2);
elseif how_many < 0
error('MATLAB:ginput:InvalidArgument', 'Argument must be a positive integer.')
end
end
% Suspend figure functions
state = uisuspend(fig);
toolbar = findobj(allchild(fig),'flat','Type','uitoolbar');
if ~isempty(toolbar)
ptButtons = [uigettool(toolbar,'Plottools.PlottoolsOff'), ...
uigettool(toolbar,'Plottools.PlottoolsOn')];
ptState = get (ptButtons,'Enable');
set (ptButtons,'Enable','off');
end
%set(fig,'pointer','fullcrosshair');
set(fig,'Pointer','custom','PointerShapeCData',P,'PointerShapeHotSpot',[8,8]);
fig_units = get(fig,'units');
char = 0;
% We need to pump the event queue on unix
% before calling WAITFORBUTTONPRESS
drawnow
while how_many ~= 0
% Use no-side effect WAITFORBUTTONPRESS
waserr = 0;
try
keydown = wfbp;
catch
waserr = 1;
end
if(waserr == 1)
if(ishandle(fig))
set(fig,'units',fig_units);
uirestore(state);
error('MATLAB:ginput:Interrupted', 'Interrupted');
else
error('MATLAB:ginput:FigureDeletionPause', 'Interrupted by figure deletion');
end
end
ptr_fig = get(0,'CurrentFigure');
if(ptr_fig == fig)
if keydown
char = get(fig, 'CurrentCharacter');
button = abs(get(fig, 'CurrentCharacter'));
scrn_pt = get(0, 'PointerLocation');
set(fig,'units','pixels')
loc = get(fig, 'Position');
% We need to compensate for an off-by-one error:
pt = [scrn_pt(1) - loc(1) + 1, scrn_pt(2) - loc(2) + 1];
set(fig,'CurrentPoint',pt);
else
button = get(fig, 'SelectionType');
if strcmp(button,'open')
button = 1;
elseif strcmp(button,'normal')
button = 1;
elseif strcmp(button,'extend')
button = 2;
elseif strcmp(button,'alt')
button = 3;
else
error('MATLAB:ginput:InvalidSelection', 'Invalid mouse selection.')
end
end
pt = get(gca, 'CurrentPoint');
how_many = how_many - 1;
if(char == 13) % & how_many ~= 0)
% if the return key was pressed, char will == 13,
% and that's our signal to break out of here whether
% or not we have collected all the requested data
% points.
% If this was an early breakout, don't include
% the <Return> key info in the return arrays.
% We will no longer count it if it's the last input.
break;
end
out1 = [out1;pt(1,1)];
y = [y;pt(1,2)];
b = [b;button];
end
end
uirestore(state);
if ~isempty(toolbar) && ~isempty(ptButtons)
set (ptButtons(1),'Enable',ptState{1});
set (ptButtons(2),'Enable',ptState{2});
end
set(fig,'units',fig_units);
if nargout > 1
out2 = y;
if nargout > 2
out3 = b;
end
else
out1 = [out1 y];
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function key = wfbp
%WFBP Replacement for WAITFORBUTTONPRESS that has no side effects.
fig = gcf;
current_char = [];
% Now wait for that buttonpress, and check for error conditions
waserr = 0;
try
h=findall(fig,'type','uimenu','accel','C'); % Disabling ^C for edit menu so the only ^C is for
set(h,'accel',''); % interrupting the function.
keydown = waitforbuttonpress;
current_char = double(get(fig,'CurrentCharacter')); % Capturing the character.
if~isempty(current_char) && (keydown == 1) % If the character was generated by the
if(current_char == 3) % current keypress AND is ^C, set 'waserr'to 1
waserr = 1; % so that it errors out.
end
end
set(h,'accel','C'); % Set back the accelerator for edit menu.
catch
waserr = 1;
end
drawnow;
if(waserr == 1)
set(h,'accel','C'); % Set back the accelerator if it errored out.
error('MATLAB:ginput:Interrupted', 'Interrupted');
end
if nargout>0, key = keydown; end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%