i4gmx3.F

Go to the documentation of this file.

Copyright>        OpenRadioss
Copyright>        Copyright (C) 1986-2025 Altair Engineering Inc.
Copyright>
Copyright>        This program is free software: you can redistribute it and/or modify
Copyright>        it under the terms of the GNU Affero General Public License as published by
Copyright>        the Free Software Foundation, either version 3 of the License, or
Copyright>        (at your option) any later version.
Copyright>
Copyright>        This program is distributed in the hope that it will be useful,
Copyright>        but WITHOUT ANY WARRANTY; without even the implied warranty of
Copyright>        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Copyright>        GNU Affero General Public License for more details.
Copyright>
Copyright>        You should have received a copy of the GNU Affero General Public License
Copyright>        along with this program.  If not, see <https://www.gnu.org/licenses/>.
Copyright>
Copyright>
Copyright>        Commercial Alternative: Altair Radioss Software
Copyright>
Copyright>        As an alternative to this open-source version, Altair also offers Altair Radioss
Copyright>        software under a commercial license.  Contact Altair to discuss further if the
Copyright>        commercial version may interest you: https://www.altair.com/radioss/.
C
!||====================================================================
!||    i4gmx3    ../starter/source/interfaces/inter3d1/i4gmx3.F
!||--- called by ------------------------------------------------------
!||    i20sti3   ../starter/source/interfaces/inter3d1/i20sti3.F
!||    i21gap3   ../starter/source/interfaces/inter3d1/i21gap3.F
!||    i23gap3   ../starter/source/interfaces/inter3d1/i23gap3.F
!||    i24gapm   ../starter/source/interfaces/inter3d1/i24sti3.F
!||    i25gapm   ../starter/source/interfaces/inter3d1/i25sti3.F
!||    i7sti3    ../starter/source/interfaces/inter3d1/i7sti3.F
!||====================================================================
      SUBROUTINE i4gmx3(X,IRECT,I,GAPMAX)
C
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER I
      my_real
     .   gapmax
      INTEGER IRECT(4,*)
      my_real
     .   x(3,*)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER JPERM(4), JJ, N1, N2
      my_real
     .   xl
C
      DATA jperm/2,3,4,1/
C-----------------------------------------------------------------
C     LONGUEUR MINI DES COTES DE SEGMENT (CALCUL DU GAP MAX)
C-----------------------------------------------------------------
      DO jj=1,4
        n1=irect(jj,i)
        n2=irect(jperm(jj),i)
        xl=(x(1,n1)-x(1,n2))**2
     .    +(x(2,n1)-x(2,n2))**2
     .    +(x(3,n1)-x(3,n2))**2
        IF(xl>zero.AND.n1/=n2)gapmax= min(gapmax,xl)
      END DO
C
      RETURN
      END