JacobianLine

Returns the Jacobian of mapping between two lines.

Interface

INTERFACE
  MODULE PURE FUNCTION JacobianLine(from, to, xij) RESULT(ans)
    CHARACTER(*), INTENT(IN) :: from
    !! BIUNIT
    !! UNIT
    !! LINE
    CHARACTER(*), INTENT(IN) :: to
    !! BIUNIT
    !! UNIT
    !! LINE
    REAL(DFP), OPTIONAL, INTENT(IN) :: xij(:, :)
    !! nodal coordinates of general line (segment)
    !! number of rows=1
    !! number of cols=2
    !! xij is needed when from or to are LINE
    !! both from and to cannot be LINE
    REAL(DFP) :: ans
  END FUNCTION JacobianLine
END INTERFACE

from

BIUNIT biunit line
UNIT unit line
LINE general LINE

to

BIUNIT biunit line
UNIT unit line
LINE general LINE

note

If any of from or to is set to LINE, then xij must be provided, which represents the end points of a line segment.

info

Both from and to cannot be set to LINE.

Interface​

Interface