X-Git-Url: http://mmka.chem.univ.gda.pl/gitweb/?p=unres.git;a=blobdiff_plain;f=source%2Funres%2Fsrc_CSA_DiL%2Frefsys.f;fp=source%2Funres%2Fsrc_CSA_DiL%2Frefsys.f;h=0000000000000000000000000000000000000000;hp=b57c201f2740c7316e88694d7eeb5c3b5d2b3464;hb=2a226bfc86eabc6e4eae0c3ad1cbc3cb5417a05a;hpb=a0e685f844163003749ba91dfbf4644bcc8cfa30 diff --git a/source/unres/src_CSA_DiL/refsys.f b/source/unres/src_CSA_DiL/refsys.f deleted file mode 100644 index b57c201..0000000 --- a/source/unres/src_CSA_DiL/refsys.f +++ /dev/null @@ -1,60 +0,0 @@ - subroutine refsys(i2,i3,i4,e1,e2,e3,fail) - implicit real*8 (a-h,o-z) - include 'DIMENSIONS' -c this subroutine calculates unity vectors of a local reference system -c defined by atoms (i2), (i3), and (i4). the x axis is the axis from -c atom (i3) to atom (i2), and the xy plane is the plane defined by atoms -c (i2), (i3), and (i4). z axis is directed according to the sign of the -c vector product (i3)-(i2) and (i3)-(i4). sets fail to .true. if atoms -c (i2) and (i3) or (i3) and (i4) coincide or atoms (i2), (i3), and (i4) -c form a linear fragment. returns vectors e1, e2, and e3. - logical fail - double precision e1(3),e2(3),e3(3) - double precision u(3),z(3) - include 'COMMON.IOUNITS' - include "COMMON.CHAIN" - data coinc /1.0d-13/,align /1.0d-13/ - fail=.false. - s1=0.0d0 - s2=0.0d0 - do 1 i=1,3 - zi=c(i,i2)-c(i,i3) - ui=c(i,i4)-c(i,i3) - s1=s1+zi*zi - s2=s2+ui*ui - z(i)=zi - 1 u(i)=ui - s1=sqrt(s1) - s2=sqrt(s2) - if (s1.gt.coinc) goto 2 - write (iout,1000) i2,i3,i1 - fail=.true. - return - 2 if (s2.gt.coinc) goto 4 - write(iout,1000) i3,i4,i1 - fail=.true. - return - 4 s1=1.0/s1 - s2=1.0/s2 - v1=z(2)*u(3)-z(3)*u(2) - v2=z(3)*u(1)-z(1)*u(3) - v3=z(1)*u(2)-z(2)*u(1) - anorm=sqrt(v1*v1+v2*v2+v3*v3) - if (anorm.gt.align) goto 6 - write (iout,1010) i2,i3,i4,i1 - fail=.true. - return - 6 anorm=1.0/anorm - e3(1)=v1*anorm - e3(2)=v2*anorm - e3(3)=v3*anorm - e1(1)=z(1)*s1 - e1(2)=z(2)*s1 - e1(3)=z(3)*s1 - e2(1)=e1(3)*e3(2)-e1(2)*e3(3) - e2(2)=e1(1)*e3(3)-e1(3)*e3(1) - e2(3)=e1(2)*e3(1)-e1(1)*e3(2) - 1000 format (/1x,' * * * error - atoms',i4,' and',i4,' coincide.') - 1010 format (/1x,' * * * error - atoms',2(i4,2h, ),i4,' form a linear') - return - end