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Diffstat (limited to 'Dragon/src/SYB4T1.f')
| -rw-r--r-- | Dragon/src/SYB4T1.f | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/Dragon/src/SYB4T1.f b/Dragon/src/SYB4T1.f new file mode 100644 index 0000000..fe24926 --- /dev/null +++ b/Dragon/src/SYB4T1.f @@ -0,0 +1,65 @@ +*DECK SYB4T1 + SUBROUTINE SYB4T1 (NIR,JMINRB,XCOTEB,COSPHI,Y0,ORIGIN,PENTES, + & ANGLES,IXRAYO,DELTAH,DXMIN,DELTAC) +* +*----------------------------------------------------------------------- +* +*Purpose: +* Compute the position of the next track intersecting with side 1 in a +* sectorized Cartesian cell. +* +*Copyright: +* Copyright (C) 2002 Ecole Polytechnique de Montreal +* This library is free software; you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public +* License as published by the Free Software Foundation; either +* version 2.1 of the License, or (at your option) any later version +* +*Author(s): A. Hebert +* +*Parameters: input +* NIR number of radius. +* JMINRB index of the first radius intercepting the side. +* XCOTEB radius interceptions. +* COSPHI cosinus. +* Y0 position of the tube center. +* ORIGIN origin of the track. +* PENTES slope of the track. +* ANGLES slope of the sector. +* IXRAYO index of the radius. +* DELTAH position of the south-west corner. +* DXMIN accuracy. +* +*Parameters: output +* DELTAC position of the next trajectory. +* +*----------------------------------------------------------------------- +* +*---- +* SUBROUTINE ARGUMENTS +*---- + INTEGER NIR,JMINRB,IXRAYO + REAL XCOTEB(JMINRB:NIR),COSPHI,Y0,ORIGIN,PENTES,ANGLES,DELTAH, + & DXMIN,DELTAC +* +* Rayon Exterieur Suivant + IF (JMINRB .LE. NIR) THEN + IF (IXRAYO .LE. NIR) THEN + Y = XCOTEB(IXRAYO) + D = Y * COSPHI - Y0 + DELTAC = MIN(DELTAC, D) + ENDIF + ENDIF +* +* Secteur Suivant + DA = ANGLES - PENTES + IF (ABS (DA) .GT. DXMIN) THEN + D = ORIGIN / DA + DELTAC = MIN(DELTAC, D) + ENDIF +* +* Coin Sud-West + DELTAC = MIN(DELTAC, DELTAH) +* + RETURN + END |