+ Solid, thin arrow representation
+ Attribute "Name" shown below or to the left of the center of the connector, based on the value of the attribute "Orientation"

GRAPHREP
SHADOW off
PEN style:solid w:0.05cm
EDGE

START

MIDDLE
AVAL orientation: "Orientation"
IF (orientation = "vertical")
{
FONT "Arial" h:8pt line-orientation:90
ATTR "Name" x:-0.2cm y:0cm w:c h:c
}
ELSE
{
FONT "Arial" h:8pt line-orientation:0
ATTR "Name" x:0cm y:-0.2cm w:c h:c
}

END
FILL color:black
POLYGON 4 x1:0.0cm y1:0cm x2:-0.2cm y2:-0.1cm x3:-0.1cm y3:0cm x4:-0.2cm y4:0.1cm