# ====================================================================
# Source code for cfdm_coordinates
#
# cfdm_coordinates.svg created with:
#
# $ dot -T svg cfdm_coordinates.gv cfdm_coordinates.svg
# ====================================================================

digraph {splines=ortho nodesep="+0.25"

node [
     style="filled,bold"
     shape=rectangle
     fillcolor="#C3FFC2"
     width=1.0
     height=0.5
     fontname="Arial"
     ]

# --------------------------------------------------------------------
# Notes
# --------------------------------------------------------------------
Note [
       style=filled
       fillcolor=white
       label="Dimension and Auxiliary\nCoordinate constructs
are related to\nDomainAxis via the\n(implicit) domain mapping"
       fontsize="11.0"
       fontname="Arial"
       ]

# --------------------------------------------------------------------
# CF-netCDF variables
# --------------------------------------------------------------------
BoundaryVariable [
       fillcolor="#C3FFFF"
       label="CN::Boundary\nVariable"
       ]
CoordinateVariable [
       fillcolor="#C3FFFF"
       label="CN::Coordinate\nVariable"
       ]

AuxiliaryCoordinateVariable [
       fillcolor="#C3FFFF"
       label="CN::Auxiliary\nCoordinate\nVariable"
       ]

ScalarCoordinateVariable [
       fillcolor="#C3FFFF"
       label="CN::Scalar\nCoordinate\nVariable"
       ]

Dimension [
       fillcolor="#C3FFFF"
       label="CN::Dimension"
       ]

GenericCoordinateVariable [
      label="<<abstract>>\nGeneric\nCoordinate\nVariable"
      fillcolor=white
      ]

# --------------------------------------------------------------------
# CF data model constructs
# --------------------------------------------------------------------
GenericCoordinateConstruct [
      label="<<abstract>>\nGeneric\nCoordinate\nConstruct"
      fillcolor=white
      ]
DomainAxis [
     label="<<construct>>\nDomainAxis"
     ]
AuxiliaryCoordinate [
        label="<<construct>>\nAuxillaryCoordinate"
        ]
DimensionCoordinate [
        label="<<construct>>\nDimensionCoordinate"
        ]

# --------------------------------------------------------------------
# Invisible nodes used to aid in layout
# --------------------------------------------------------------------
node [
     width=0
     height=0
     size=fixed
     shape=none
     label=""
     ]
route1
route2
route3
route4
route5
route6

edge [arrowtail=none
      arrowhead=vee
      dir=both
      arrowsize=1.0
      fontname="Arial"
      labelfontsize=11.0
      ]

GenericCoordinateConstruct -> route1 [arrowtail=empty arrowhead=none]
route1 -> DimensionCoordinate [arrowhead=none]
GenericCoordinateConstruct -> AuxiliaryCoordinate [arrowtail=empty
                                 arrowhead=none
                weight=100]
AuxiliaryCoordinate -> route2 [arrowhead=none weight=100]
route2 -> AuxiliaryCoordinateVariable [weight=100]
DimensionCoordinate -> CoordinateVariable [weight=100
                                           taillabel="                  either/or"
             labeldistance=1.1
             ]

AuxiliaryCoordinateVariable -> GenericCoordinateVariable [arrowtail=none
                                        arrowhead=empty]
BoundaryVariable -> route3 [arrowtail=vee arrowhead=none weight=100
                taillabel="0..1        " labeldistance=1.1]
route3 -> GenericCoordinateVariable [arrowhead=none weight=100]

{rank=same; GenericCoordinateConstruct, route1, DimensionCoordinate, route6}
{rank=same; AuxiliaryCoordinate, BoundaryVariable}
{rank=same; AuxiliaryCoordinateVariable, GenericCoordinateVariable, route4}
{rank=same; Note, route2, route3, CoordinateVariable}
{rank=same; DomainAxis, ScalarCoordinateVariable}

GenericCoordinateVariable -> route4 [arrowtail=empty arrowhead=none]
route4 -> CoordinateVariable  [arrowhead=none weight=100]
route4 -> ScalarCoordinateVariable [arrowhead=none weight=100]

DomainAxis -> Dimension [weight=100
             taillabel=" either/or "
        headlabel="0..1  "]
DomainAxis -> ScalarCoordinateVariable [taillabel=" either/or"
          headlabel="0..1    "]

DimensionCoordinate -> route6 [arrowhead=none taillabel=" either/or"]
route6 -> ScalarCoordinateVariable []

# --------------------------------------------------------------------
# Invisible edges used to aid in layout
# --------------------------------------------------------------------
route3 -> CoordinateVariable [style=invis]
ScalarCoordinateVariable -> CoordinateVariable [style=invis weight=100]
AuxiliaryCoordinateVariable -> DomainAxis [style=invis weight=100]
EitherOr -> GenericCoordinateVariable [style=invis]


}