simpleview.m

基于matlab的反演程序,用于地球物理勘探中射线追踪及偏移成像程序.

function simpleview( arg )

% simpleview
%
% simpleVIEW provides an interactive, point&click interface to viewing 
% any 3-D axes and altering its azimuth and elevation of the view
%
% G.F. Margrave, September 1994
%
% NOTE: It is illegal for you to use this software for a purpose other
% than non-profit education or research UNLESS you are employed by a CREWES
% Project sponsor. By using this software, you are agreeing to the terms
% detailed in this software's Matlab source file.
 
% BEGIN TERMS OF USE LICENSE
%
% This SOFTWARE is maintained by the CREWES Project at the Department
% of Geology and Geophysics of the University of Calgary, Calgary,
% Alberta, Canada.  The copyright and ownership is jointly held by 
% its author (identified above) and the CREWES Project.  The CREWES 
% project may be contacted via email at:  [e-mail]
% 
% The term 'SOFTWARE' refers to the Matlab source code, translations to
% any other computer language, or object code
%
% Terms of use of this SOFTWARE
%
% 1) Use of this SOFTWARE by any for-profit commercial organization is
%    expressly forbidden unless said organization is a CREWES Project
%    Sponsor.
%
% 2) A CREWES Project sponsor may use this SOFTWARE under the terms of the 
%    CREWES Project Sponsorship agreement.
%
% 3) A student or employee of a non-profit educational institution may 
%    use this SOFTWARE subject to the following terms and conditions:
%    - this SOFTWARE is for teaching or research purposes only.
%    - this SOFTWARE may be distributed to other students or researchers 
%      provided that these license terms are included.
%    - reselling the SOFTWARE, or including it or any portion of it, in any
%      software that will be resold is expressly forbidden.
%    - transfering the SOFTWARE in any form to a commercial firm or any 
%      other for-profit organization is expressly forbidden.
%
% END TERMS OF USE LICENSE

% determine input mode
 if(nargin < 1)
		action='initialize';
 elseif( nargin==1 & isstr(arg) )
		action = arg;
 end


% user data assignments
%
% figure... the handles of all of the uicontrols:
%	[hdoit,hazLabel,haz,helLabel,hel,hquit]
%
% hdoit ... [x y z]
%
% hazLabel ... not used
%
% haz ... not used
%
% helLabel ... not used
%
% hel ... not used
%
% hquit ... not used
%


% initialize the viewer

if( strcmp(action,'initialize') )

% get the orientation of the current view

 [az,el]=view;

	if( abs(az) > 180. )
		az = az-360.;
	end

	hfig1 = gcf;
	
	% make some controls

	sep = 2;
	xnow = sep;
	ynow = sep;
	width = 50;
	height = 20;

% store the input grid in the doit button
	hdoit = uicontrol('style','pushbutton','string','Doit',...
		'position', [xnow,ynow,width,height],'callback',...
		'simpleview(''plot'')','visible','off');

	%xnow = xnow+sep+width;

	width = 75;

	hazLabel = uicontrol('style','text','position',...
		[xnow,ynow,width,height]);
	
	xnow = xnow+sep+width;
	width = 90; height = 20;

	haz = uicontrol('style','slider','min',-180,'max',180,...
	'position',[xnow,ynow,width,height],'callback',...
	'simpleview(''az'');simpleview(''doit'')','value',az);
 
	xnow = xnow+sep+width;
	width = 75;
	height = 20;

	helLabel = uicontrol('style','text','position',...
		[xnow,ynow,width,height]);
	
	xnow = xnow+sep+width;
	width = 90;
	height = 20;

	hel = uicontrol('style','slider','min',0,'max',90,...
	'position',[xnow,ynow,width,height],'callback',...
	'simpleview(''el'');simpleview(''doit'')','value',el);

	xnow = xnow+width+sep;
	width = 50;
	height = 20;

	hquit = uicontrol('style','pushbutton','string','Close','position',...
		[xnow,ynow,width,height],'callback','simpleview(''quit'')');
		
% store the uicontrol handles in the figure

	set(gcf,'userdata',[hdoit,hazLabel,haz,helLabel,hel,hquit]);

	% set the slider labels

	simpleview('az');
	simpleview('el');

	set(gca,'box','on');
	grid on

	return;
end

% the doit button
if( strcmp( action,'doit') )
	h = get(gcf,'userdata');

	haz = h(3);
	hel = h(5);

	az = get(haz,'value');
	el = get(hel,'value');

	view(az,el);
	set(gca,'box','on');

end

% change the azimuth display
if( strcmp(action,'az') )
	h = get(gcf,'userdata');

	hazLabel = h(2);
	haz=h(3);

	az = get(haz,'value');

	if( abs(az) > 180. )
		az = az-360.;
	end

	az = round(az);

	azLabel = sprintf('Az= %d',az);

	set( hazLabel,'string',azLabel);
end

% change the elevation display
if( strcmp(action,'el') )
	h = get(gcf,'userdata');

	helLabel = h(4);
	hel=h(5);

	el = get(hel,'value');

	el = round(el);

	elLabel = sprintf('Elev= %d',el);

	set( helLabel,'string',elLabel);
end

% the quit callback
if( strcmp(action,'quit') )
	  close(gcf);
end