[udig-devel] dpi issues

[Jody Garnett]

Vince Darley wrote:
> At 14:43 26/03/2008, andrea antonello wrote:
>> Not so sure about that. You can create an image of 300 dpi, but when
>> it goes into a pdf it will be lowered in resolution.
> Really!?  That would be horrible, given that any decent printer these 
> days has at least 300 dpi resolution.
It is just a restriction on the quick PDF export that Jesse made.

If you look at the Page api; when you print directly from a uDig page to 
a Printer it allows the scalebar, renderer and so on to work directly 
with the Printer's Graphics2D interface and print at full printer 
resolution. Earliy in uDig lifecycle we were printing out to plotters 
and having a great time (a neighboring company had a plotter we could 
borrow).
> Fortunately for the code path I'm using (the 'Udig Map -> BIRT report 
> element -> BIRT report render' that I mentioned last year), this does 
> not appear to be true, but I would really, really hope it is not true 
> in general for udig's pdf export (understandable if that's all that 
> iText supports, but still a pretty horrible limitation).
The pdf export appears to be a quick fun hack, while it would be 
tempting to make a Graphics2D iText wrapper it sounds like we may be 
limited to 72 dpi positioning?
Jody