Re: [Groff] PDFPIC macro

[Keith Marshall]

Hi Deri,

I have what appears to be a working build, now; (see below).

On 11/10/17 10:09, Keith Marshall wrote:
> On 09/10/17 23:44, Deri James wrote:
>> The attached archive holds some samples of two types of pdfs, either
>> produced by gropdf or produced by cairo software.  Inside the two
>> subdirectories there are three types of files:-
>>
>> *-structure.pdf (these illustrate the structure of the pdf with
>> similar name)
>>
>> *.pdf (these are the pdfs to run against psbb)
>>
>> *.mm (a program called "freemind" can open these files, they also
>> illustrate the structure, but you can interactively click to
>> open/close object nodes).
>>
>> In the gropdf directory the gropdf.pdf file is the one having
>> problems, and the gs.pdf is the same file after running through
>> ghostscript, which psbb handles perfectly.  Both files load fine in
>> acroread, which can be quite picky when it comes to syntax, although
>> the probability is that gropdf is not quite standard enough.
> 
> [...snip... fix identified for gropdf.pdf issue ...snip...]
> 
>> The cairo directory contains two examples created by inkscape, psbb
>> has a big problem with these.
> 
> [...snip...]
> 
> I have an idea how to fix this too ...
> 
>> I hope these are helpful to you, sorry for being a nuisance.
>> Integrating pdf bounding boxes into groff would be a big benefit.
>> These are the MediaBoxes which would be expected.
> 
> Thanks.  These are helpful to me, (but obviously not to others, unless 
> you're willing to distribute them).  Regardless, I'll leave the analysis 
> here, for reference.
> 
>> address@hidden Samples]$ pdfbb Cairo/*.pdf gropdf/*.pdf
>> Processing 'Cairo/gropdf-pdf-structure.pdf'
>> Cairo/gropdf-pdf-structure.pdf: MediaBox: 0,0,842,595
>> Processing 'Cairo/gs-pdf-structure.pdf'
>> Cairo/gs-pdf-structure.pdf: MediaBox: 0,0,842,595
>> Processing 'Cairo/SJP.pdf'
>> Cairo/SJP.pdf: MediaBox: 0,0,114.146561,115.235786
>> Processing 'Cairo/SJP-structure.pdf'
>> Cairo/SJP-structure.pdf: MediaBox: 0,0,842,595
>> Processing 'Cairo/SJP-Whole.pdf'
>> Cairo/SJP-Whole.pdf: MediaBox: 0,0,210.231384,138.239899
>> Processing 'Cairo/SJP-Whole-structure.pdf'
>> Cairo/SJP-Whole-structure.pdf: MediaBox: 0,0,842,595
>> Processing 'gropdf/gropdf.pdf'
>> gropdf/gropdf.pdf: MediaBox: 0,0,612,792
>> Processing 'gropdf/gropdf-pdf-structure.pdf'
>> gropdf/gropdf-pdf-structure.pdf: MediaBox: 0,0,842,595
>> Processing 'gropdf/gs.pdf'
>> gropdf/gs.pdf: MediaBox: 0,0,612,792
>> Processing 'gropdf/gs-pdf-structure.pdf'
>> gropdf/gs-pdf-structure.pdf: MediaBox: 0,0,842,595

With my fixes applied, and built with DEBUGGING off, I see:

$ ./psbb Samples/*/*.pdf
.../Cairo/gropdf-pdf-structure.pdf: bounding box = (0,0)..(842,595)
.../Cairo/gs-pdf-structure.pdf: bounding box = (0,0)..(842,595)
.../Cairo/SJP.pdf: bounding box = (0,0)..(114,115)
.../Cairo/SJP-structure.pdf: bounding box = (0,0)..(842,595)
.../Cairo/SJP-Whole.pdf: bounding box = (0,0)..(210,138)
.../Cairo/SJP-Whole-structure.pdf: bounding box = (0,0)..(842,595)
.../gropdf/gropdf.pdf: bounding box = (0,0)..(612,792)
.../gropdf/gropdf-pdf-structure.pdf: bounding box = (0,0)..(842,595)
.../gropdf/gs.pdf: bounding box = (0,0)..(612,792)
.../gropdf/gs-pdf-structure.pdf: bounding box = (0,0)..(842,595)

which, allowing for rounding to integers -- as required by the internal 
representation of gtroff's .psbb registers -- seems to be in agreement 
with your expected results.

-- 
Regards,
Keith.