# ====================================================================
# 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]


}