tangy is picture generator. It is inspired by pic (roff pre-processor). Using the language, you can draw picture in EPS (Encapsuled Postscript) file. For example, following script makes DB, client and their communication through Internet.
drum "DB"
arrow
cloud "Internet"
arrow
circle "client"
You can change color, hatching and line types.
drum "A"
arrow
box "B"
arrow linetype dashed
circle "C" fillhatch slashed fillcolor 3
arrow linetype zigzag
ellipse "D" fillhatch crossed fillcolor 2
arrow linetype waved
Tangys supports "alias" to draw simular shapes.
alias ent "box fillcolor 15 fillhatch solid"
box width 0 height 2u linecolor -1
ent "preamble" :NOC "8"
ent "ethernet" "header" :NOC "14"
ent "IP" "header" :NOC "20+"
ent "TCP" "header" :NOC "20+"
ent "data" width 2u vwslit :NOC "6..1460"
ent "FCS" width .8u :NOC "4"
ent "IFG" :NOC "12"
Tangy accepts ASCII, Japanese(UTF-8) and mix of them.
box "ASCII日本語" width 2u
move
box "|sanserif|ASCII日本語" width 2u
Thanks.