Dear Luigi and All, On Wed, 24 Mar 2010, luigi scarso wrote:

I'm pretty sure that I still don't understand much , but I have written an article for including swf in mkiv , cfr

am I correct to assume that swf inclusion works ok and is done in a current kosher way in latest minimals and so can be used as a reference for inclusion of other types? Sincerely, Michail

Dear Luigi and All, On Wed, 24 Mar 2010, luigi scarso wrote:

Hans provided me the skeleton -- like yours u3d files --- and I must rewrite a 2nd article to implement the mkiv way.

And where the mkiv way is to be studued? What kinds of inclusion not only work, but are implemented in the modern way and so are fit to be emulated? Is node.write mkiv way or not yet? Sincerely, Michail

On 24-3-2010 15:20, luigi scarso wrote:

...

Dear Luigi and All,

On Wed, 24 Mar 2010, luigi scarso wrote:

...

Hans provided me the skeleton -- like yours u3d files --- and I must rewrite a 2nd article to implement the mkiv way.

And where the mkiv way is to be studued? What kinds of inclusion not only work, but are implemented in the modern way and so are fit to be emulated? Is node.write mkiv way or not yet?

Sincerely, Michail As I wrote, I quite don't understand well this area. For now I can say that the mkiv way is a mix of lua and tex, while

On Wed, Mar 24, 2010 at 2:02 PM, Michail Vidiassov wrote: the latex/mkii/pdftex tex way is described in flashmovie.sty Also Adobe Supplement to the ISO 32000 base version 1.7 extensione level 3 is the guideline.

I much prefear to code by myself without ask for Hans now, it's a way to understand this aspect that I don't manage well.

it is already coded .. see back-u3d.mkiv for the interface when given examples of something that does not work i can repair it mkii/sty files are of no use here as things need to fit into the context user interface Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

On 24-3-2010 17:46, Michail Vidiassov wrote:

Dear Hans,

...

when given examples of something that does not work i can repair it

take a look at http://www.ntg.nl/pipermail/ntg-context/2010/047898.html - it is about problem with movies, but movies and u3d are both done via annotations, thus there are similarities.

i uploaded a new version, movies seem to work, u3d not tested ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

On 24-3-2010 10:52, luigi scarso wrote:

I'm watching at your u3d files to maintains same style.

there is u3d support presen tbut nobody tested it also, we can only improve it if we have a proper test set (also true for swf) that we can add to the samples section, simple public tests Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

On 25-3-2010 20:12, Michail Vidiassov wrote:

to at least make code run without throwing error messages.

new beta Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

On 26-3-2010 6:53, Michail Vidiassov wrote:

lpdf-u3d.lua

if not stream then local attr = pdfdictionary { Type = pdfconstant("3D"), - Subtype = pdfconstant("U3D"), } + if string.upper(string.sub(foundname,-4))==".PRC" then + attr.Subtype = pdfconstant("PRC") + else + attr.Subtype = pdfconstant("U3D") + end local streamviews = checkedkey(streamparam, "views", "table") if streamviews then local list = pdfarray()

May be a more robust way is to read first 3 bytes of the model file, since "U3D" or "PRC" signature is always there - that can be done instead of relying on file name extension or only in case it it not "u3d" or "prc".

more like: local subtype, subdata = "U3D", io.readdata(foundname) or "" if find(subdata,"^PRC") then subtype == "PRC" elseif find(subdata,"^U3D") then subtype == "U3D" elseif file.extname(foundname) == "prc" then subtype == "PRC" end

Also PRC annotations have to trigger setting PDF version to 1.7.3 (developer extensions dictionary mechanism). It can be done per your advice directly

\doPDFaddtocatalog { /Extensions <

...

...

}

But what about an interface like \pdfmicroversion and automatic pushing up of PDF version once PRC annontation happens?

i don't know that command and anyway want to get rid of all commands that start with \pdf concerning versions ... peter rolf and i are working on detailed support for standards (also related to preflighting) and before i even want to look in some automated version handling we first need to get that bit done well

Also I try to remind you about pdfboolean problem in lpdf-ini.lua (old code is not OK if b is "false" and default is "true")

local function pdfboolean(b,default) - if ((type(b) == "boolean") and b) or default then - return p_true + if type(b) ~= "boolean" then + if default then + return p_true + else + return p_false + end else - return p_false + if b then + return p_true + else + return p_false + end end end

i need to check it ... later (also for interferences)

PS. And a great palliative way to deal with 3D annotations is via attaching a 3D PDF file made with LaTeX (by Asymptote, for example).

well, one can attach files as-is already (unless it's broken)

I can not deduce from existing sea of ConTeXt code the status of file attachments support.

\attachment has been there for ages actually, all kind of annotations hav ebeen supported as soon as they showed up in acrobat (mediademo is an exmaple of flash) but i gave up on implementing these things too early as in acrobat/pdf such new tricks normally needs a few versions to reach stability Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------