From: Zhichu Chen <zhichu.chen@gmail.com>
To: Hans Hagen <pragma@wxs.nl>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Is there a replacement for \tracechinesetrue in mkiv?
Date: Fri, 30 Dec 2011 23:52:31 +0800 [thread overview]
Message-ID: <CAAxCdXMSpnOuhX7WU2Q9n8LJC7AKxWyAs57TrXOdUN31N71V_g@mail.gmail.com> (raw)
In-Reply-To: <4EFC76CB.10703@wxs.nl>
Well, that's just perfect, only it's not what I'm looking for :( What
I need is a fully customable way to debug some of my inputs rather
than everything as a font feature.
I found a "cleaner" way now: to use the "whatsit" node, I hope it's
useful for someone so I paste the function here:
============================================
local function trace_boundingbox (head)
for n in node.traverse (head) do
if n.id == node.id ('glyph') then
local ht,wd,dp = n.height,n.width,n.depth
local htsp,wdsp,dpsp = ht/65536,wd/65536,dp/65536
local w = node.new("whatsit","pdf_literal")
w.data = "q 1 0 1 RG 1 0 1 rg 0.1 w 0 " .. -dpsp .. " m 0 "
.. htsp .. " l " .. -wdsp .. " " .. htsp .. " l " .. -wdsp .. " " ..
-dpsp .. " l s 0 1 0 RG 0 1 0 rg 0.1 w [2 1] 0 d 0 0 m " .. -wdsp ..
" 0 l S Q"
node.insert_after (head, n, w)
end
end
end
============================================
On Thu, Dec 29, 2011 at 10:18 PM, Hans Hagen <pragma@wxs.nl> wrote:
> On 29-12-2011 04:22, Zhichu Chen wrote:
>>
>> All right, after some readings, I came out with a node solution. The
>> major idea is listed below and works just fine. "n" from node_traverse
>> (head) and n.id==node.id ('glyph')
>>
>> My question is: is there a better way? Because these codes are so
>> dirty. I prefer mplib but I have no clue how to do that.
>
>
> Using mp would be pretty complex too and all solutions are rather
> inefficient (bloat the pdf) .. attached another solution (I'll add it to the
> next beta).
>
>
> Hans
>
> -----------------------------------------------------------------
> Hans Hagen | PRAGMA ADE
> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
> | www.pragma-pod.nl
> -----------------------------------------------------------------
--
Best Regards
Chen
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next prev parent reply other threads:[~2011-12-30 15:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-21 11:16 Zhichu Chen
2011-12-21 22:47 ` Hans Hagen
2011-12-22 1:00 ` Zhichu Chen
2011-12-29 3:22 ` Zhichu Chen
2011-12-29 14:18 ` Hans Hagen
2011-12-30 15:52 ` Zhichu Chen [this message]
2011-12-29 14:38 ` Hans Hagen
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