| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| type(vector), | intent(in) | :: | vector1 | |||
| type(vector), | intent(in) | :: | vector2 | |||
| logical, | intent(inout) | :: | areSame | |||
| real(kind=r64), | intent(in) | :: | tolerance | 
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Solid arrows point from a procedure to one which it calls. Dashed arrows point from an interface to procedures which implement that interface. This could include the module procedures in a generic interface or the implementation in a submodule of an interface in a parent module. Where possible, edges connecting nodes are given different colours to make them easier to distinguish in large graphs.
   SUBROUTINE CompareTwoVectors(vector1,vector2,areSame,tolerance)
             ! SUBROUTINE INFORMATION:
             !       AUTHOR         Linda Lawrie
             !       DATE WRITTEN   February 2012
             !       MODIFIED       na
             !       RE-ENGINEERED  na
             ! PURPOSE OF THIS SUBROUTINE:
             ! This routine will provide the ability to compare two vectors (e.g. surface normals)
             ! to be the same within a specified tolerance.
             ! METHODOLOGY EMPLOYED:
             ! compare each element (x,y,z)
             ! REFERENCES:
             ! na
             ! USE STATEMENTS:
             ! na
     IMPLICIT NONE ! Enforce explicit typing of all variables in this routine
             ! SUBROUTINE ARGUMENT DEFINITIONS:
     TYPE(vector), INTENT(IN) :: vector1   ! standard vector
     TYPE(vector), INTENT(IN) :: vector2   ! standard vector
     LOGICAL, INTENT(INOUT)   :: areSame   ! true if the two vectors are the same within specified tolerance
     REAL(r64), INTENT(IN)    :: tolerance ! specified tolerance
             ! SUBROUTINE PARAMETER DEFINITIONS:
             ! na
             ! INTERFACE BLOCK SPECIFICATIONS:
             ! na
             ! DERIVED TYPE DEFINITIONS:
             ! na
             ! SUBROUTINE LOCAL VARIABLE DECLARATIONS:
             ! na
     areSame=.true.
     IF (ABS(vector1%x-vector2%x) > tolerance) areSame=.false.
     IF (ABS(vector1%y-vector2%y) > tolerance) areSame=.false.
     IF (ABS(vector1%z-vector2%z) > tolerance) areSame=.false.
     RETURN
   END SUBROUTINE CompareTwoVectors