El Dimecres, 29 de maig de 2013, a les 23:57:44, Mihai Niculescu va escriure: > mail list included. Replay below. > > On 05/29/2013 11:39 PM, Albert Astals Cid wrote: > > El Dimecres, 29 de maig de 2013, a les 21:54:43, Mihai Niculescu va escriure: > >> Hi, > >> > >> I am trying to get the bounding box of all content in a page(text, > >> images, tables, etc) in poppler, but I can’t figure this out. > >> > >> For example, I want to dublicate the result given by ghostscript: > >> gs -sDEVICE=bbox golfer.ps > >> > >> prints out > >> > >> %%BoundingBox: 0 25 583 732 > >> > >> %%HiResBoundingBox: 0.808497 25.009496 582.994503 > >> 731.809445 > >> > >> How can this be done with poppler? > > > > Is that the "real" bounding box or one of the pdf boxes (crop, bleed, > > etc)? > > > > Cheers, > > > > Albert > >> > >> Thanks, > >> Mihai > >> _______________________________________________ > >> poppler mailing list > >> [email protected] > >> http://lists.freedesktop.org/mailman/listinfo/poppler > > > > _______________________________________________ > > poppler mailing list > > [email protected] > > http://lists.freedesktop.org/mailman/listinfo/poppler > > Not the pdf boxes. I mean the union of all bounding boxes of all > elements (text, images, tables, glyphs, etc) in pdf. Let me explain more. > > I tried to loop over all QList<TextBox> but these do not include other > glyphs in the pdf (greek sigma - for summation in latex) or maybe > poppler does not see it as a text: > > QList<Poppler::TextBox*> wholetext = pdfPage->textList(); > > //float minX, maxX, minY, maxY; > > QRectF unitedTextbbox, textbbox; > > for(int i=0; i<wholetext.size(); ++i){ > > Poppler::TextBox* textBox = wholetext.at(i); > > textbbox = textBox->boundingBox(); > > if(i==0){ > > unitedTextbbox=textbbox; > > }else{ > > unitedTextbbox=unitedTextbbox.united(textbbox); > > } > > } > > > This works great when there is simple text in pdf, but when there are > other symbols it does not. I need something like the example above but > to include all elements in the pdf. I'll go and use only poppler > (without qt4 wrapper) if I can have this.
Can't think on how to get what you want easily to be honest. As a quick solution you can render the page at a relatively low res and work the bbox from it, just check if the 4 corners are the same color and iterate on that. Cheers, Albert > > Cheers, > Mihai > _______________________________________________ > poppler mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/poppler _______________________________________________ poppler mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/poppler
