gusucode.com > DSISoft是由加拿大地质调查局发布的用于垂直地震剖面(VSP)数据处理的免费软件包 > dsisoftv3/main/rot_deg.m
function dataout=rot_deg(datain,rotang,rec1,rec2) %function dataout=rot_deg(datain,rotang) % %This function rotates two gathers by a fixed rotation angle % %rotang=rotation angle in degrees %rec=record number in file to be rotated % %DSI customized VSP processing software %written by Gervais Perron March, 1998 %$Id: rot_deg.m,v 3.0 2000/06/13 19:21:17 gilles Exp $ %$Log: rot_deg.m,v $ %Revision 3.0 2000/06/13 19:21:17 gilles %Release 3 % %Revision 2.0 1999/05/21 18:46:25 mah %Release 2 % %Revision 1.1 1999/01/06 19:09:07 kay %Initial revision % % %Copyright (C) 1998 Seismology and Electromagnetic Section/ %Continental Geosciences Division/Geological Survey of Canada % %This library is free software; you can redistribute it and/or %modify it under the terms of the GNU Library General Public %License as published by the Free Software Foundation; either %version 2 of the License, or (at your option) any later version. % %This library is distributed in the hope that it will be useful, %but WITHOUT ANY WARRANTY; without even the implied warranty of %MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU %Library General Public License for more details. % %You should have received a copy of the GNU Library General Public %License along with this library; if not, write to the %Free Software Foundation, Inc., 59 Temple Place - Suite 330, %Boston, MA 02111-1307, USA. % %DSI Consortium %Continental Geosciences Division %Geological Survey of Canada %615 Booth St. %Ottawa, Ontario %K1A 0E9 % %email: dsi@cg.nrcan.gc.ca disp('function dataout=rot_deg(datain,rotang,rec)'); dataout=datain; s=sin(rotang*pi/180); c=cos(rotang*pi/180); rotmat=[c s;-s c]; for i=1:datain.th{rec1}(12,1) rotdata=(rotmat'*[datain.dat{1}(:,i) datain.dat{2}(:,i)]')'; dataout.dat{rec1}(:,i)=rotdata(:,1); %rotated h1 component dataout.dat{rec2}(:,i)=rotdata(:,2); %rotated h2 component end