Dear Hans,

On Thu, 13 May 2010, Hans Hagen wrote:

> On 13-5-2010 12:16, Michail Vidiassov wrote:

>> is it worth trying to fix 3D annotations now?
>> I have a patch I have posted here (3D annotations thread),
>> but it is both a fix for errors (like == used instead of = )
>> and a work-around for missing base features (bitmap preview done
>> "by hand" while, it seems, the authors dalayed the question till
>> something is implemented in luatex/ConTeXt the right way)
>> - so it may not classify exactly as just a bugfix.
>
> some things were fixed, so best first check against the latest beta and then 
> summarize the problems

first  - it does not work due to typos like

     local name = viewname
     local name = pdfunicode((view.name ~= "" and name) or "unknown view")

- likely someone started to write code, but dropped the idea and never tested

Or

         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

it seems == is used instead of =, io.readdata instead of file.readdata - 
again, some one wrote the code but had no time to read the result

Second, more important - no preview image is created.


patch and test case attached


         Sincerely, Michail