World: r3wp

it's john's version I'm trying it in

mine works .. I'll upload it.

test3: form ps/header [
	gsave
	translate 72x72
	at 0x0 box 72x72 stroke
	grestore
	showpage
]

draws a box at 72x72 where origin is translated to 72x72

test3: form ps/header [
	gsave
	translate 72x72
	newpath
	at 0x0 box 72x72 stroke
	grestore
	showpage
]

{%!
%%Creator: ps.r ver 0.0.4
gsave
72 72 translate
newpath
0 0 moveto 72 0 rlineto 0 72 rlineto -72 0 rlineto closepath
stroke
grestore
showpage

%%EOF

ah, the good old copy trap. for the zillionth time I fell in.

wait for R3 then!

this has to be working by april 22nd. so that's no go.

watcha doing?

that barcode thing.

ahh...

just numbers?

or full alphabet?

yes

no

you can't use a postscript barcode font?

no, the barcode is already working fine. it's the position of the 
image on the paper and general arrangement of the code that needs 
to be worked out

oh well, good luck.

thanks

oh, how are you doing the image in postscript ?

just drawing lots of parallel lines

ok, there's a hex format for images as well as using eps, but I don't 
know how that works.

interesting

like image! ?

guess so.

ok I can rotate, but not translate

ah! I was using a pair! instead of two numbers

Thinking of what John said, I suspect if you try and automate the 
newpath etc, you'll get into problems.

You'll be trying to write a better postscript than postscript .. 
.which may be possible!

I haven't been thinking of that yet.... but the ultimate goal should 
be to use postscript on a higher level

postscript [page [at 20x20 barcode 12345]]

at least we gain by .. losing the rpn notation, and also using pairs 
instead of two numbers.

A higher level is that .. writing a better poscript.

well, is C a better assembler?

it's slower :)

there we go... http://www.hmkdesign.dk/barcode.ps

now to redesign the API. it's too clunky right now

that looks pretty neat!

I take it that was much harder to do in pdf-maker.r ??

it's a bit harder but not much different

actually only the text was harder because in PS you point to a position 
and start writing, where you in PDF-maker need to define a text box 
before writing

Is this EAN ?

EAN13

works fine with barcode readers. have tested with both cheap and 
expensive ones. just need a good printer

where's the barcode function?

http://www.hmkdesign.dk/rebol/barcode/ean13.r

do %postscript.r
do %ean13.r
ean13-ps ean13-create "123456789012" ; 12-digit code

will output a block to be inserted in the postscript block

Ok, not trivial !

a bit clunky