Re: Writing PDF files

[Bill Findlay <yaldnif.w@blueyonder.co.uk>]

On 17/10/2011 03:18, in article
f571bb24-b0a9-44f7-855b-adffe7cbddb8@o19g2000vbk.googlegroups.com,
"RasikaSrinivasan@gmail.com" <rasikasrinivasan@gmail.com> wrote:

> On Oct 16, 8:04�pm, Bill Findlay <yaldni...@blueyonder.co.uk> wrote:
>> I am writing a KDF9 emulator in Ada 2005, and have reached the stage of
>> simulating a graph-plotter device. �I'm hoping to do this by converting
>> KDF9 plot commands into a PDF file, but am having difficulty finding a
>> useful source of info on what a minimal PDF graphics file should contain.
>> 
>> Is there a (preferably, simple) Ada library for this purpose, by any chance?
>> 
>> BTW I'm using MacOS X Lion.
> 
> Search for a library Haru which helps you create pdf files. It does
> support adding graphics files. might give you adequate info. I have
> built an ada interface to this as well.

Thanks for the suggestion.

I am thinking in these terms because we did exactly this to let beginners
produce graphical output back in 1996, which was when we started teaching
Ada 95 (with GNAT running on Sun servers). My then colleague Satnam Singh
wrote a small Ada library, more less from scratch, that turned simple
graphical commands into PDF.  When we started using PCs to deliver the lab,
we went over to AdaGIDE and Satnam's code was forgotten.

I'd be happy to write my own similar package, if I could find PDF
documentation that did not threaten to make my head explode.
Existing Ada code (or even C, at a pinch) might serve that purpose.

-- 
Bill Findlay
with blueyonder.co.uk;
use  surname & forename;