PS
# Crow.m4
#`Illustrates shadebox and custom crowfoot line termination; uses s_box'
gen_init
s_init(Crow)
sinclude(tst.dim)
# Custom macros --------------------------
# `crowline(linespec,wid,ht)'
# `Single-segment line with crowfoot end'
define(`crowline',
`line `$1'
M4_E: last line.end
crow_wd = ifelse(`$2',,`(arrowwid*8/5)',`$2')
crow_ht = ifelse(`$3',,`(1.5*crow_wd)',`$3')
M4_P: vperp(last line,crow_wd)
M4_X: Along_(last line,crow_ht,R)
ifdpic(
`spline 0.4 from M4_E+M4_P to M4_X+M4_P then to M4_X-M4_P then to M4_E-M4_P',
`spline from M4_E+(M4_P.x,M4_P.y) to M4_X+(M4_P.x,M4_P.y) \
then to M4_X-(M4_P.x,M4_P.y) then to M4_E-(M4_P.x,M4_P.y)') ')
define(`custombox',
``$1': shadebox(box `$2',3)
s_box({\sf `$1'}) at last box.n above
boxtext(`$3')')
define(`boxtext',`s_box(\parbox{%gpt}{\sf `$1'},int(last box.wid/(1pt__))) \
with .nw at last box.nw +(5pt__,-5pt__) ')
custombox(Product,ht Class.ht with .nw at Class.ne+(boxsep,0),
`classkey\\ prodkey\\ prod\_name\\ pkg\_type')
custombox(Sales,ht boxht*2.75 with .nw at Product.ne+(boxsep*2,13pt__),
`perkey\\ classkey\\ prodkey\\ storekey\\ promokey\\ quantity\\ dollars')
custombox(Period,ht Sales.ht with .nw at Sales.ne+(boxsep*2,0),
`perkey\\ date\\ day\\ week\\ month\\ qtr\\ year')
custombox(Market,ht Sales.ht with .nw at Class.sw+(0,-boxsep*3/2),
`perkey\\ date\\ day\\ week\\ month\\ qtr\\ year')
custombox(Store,ht boxht*3.2 with .sw at (Product.w,Market.s),
`storekey\\ mktkey\\ store\_type\\ store\_name\\ street\\ city\\ state\\ zip')
custombox(Promotion,ht Market.ht with .sw at (Period.w,Market.s),
`promokey\\ promo\_type\\ promo\_desc\\ value\\ start\_date\ end\_date')
move to Class.ne+(0,-10pt__); crowline(to (Product.w,Here))
move to Product.ne+(0,-10pt__); crowline(to (Sales.w,Here))
move to last line.start+(0,-crow_wd*2.5); crowline(to (Sales.w,Here))
T: last line.c+(0,-crow_wd*2.5)
move to Period.nw+(0,-10pt__); crowline(to (Sales.e,Here),,1.75*crow_wd)
Q: (last line.c,0.35 between Sales.se and Sales.ne)
move to Market.ne+(0,-10pt__); crowline(to (Store.w,Here))
move to Store.ne+(0,-10pt__); line to (T,Here) then to T
crowline(to (Sales.w,Here))
move to Promotion.nw+(0,-10pt__); line to (Q,Here) then to Q
crowline(to (Sales.e,Here),,1.75*crow_wd)
