El Dijous, 24 de novembre de 2011, a les 20:01:28, Joachim Langenbach va escriure: > Good evening Albert! > > On Thursday 24 November 2011 18:52:52 Albert Astals Cid wrote: > > El Dijous, 24 de novembre de 2011, a les 09:04:45, Joachim Langenbach va > > > > escriure: > > > Good morning everybody, > > > > Morning, assuming this questions are about the Qt4 frontend, if they are > > not, please be more specific when asking > > You're right, they are about the qt4 frontend. > > > > I'm trying to calculate scale factors and it is a little bit > > > confusing. > > > So what is the unit of the sizes returned by pageSize and pageSizeF? > > > Is > > > it dots? > > > > http://people.freedesktop.org/~aacid/docs/qt4/classPoppler_1_1Page.html# > > a466 525e6988b199176d3d68dd0099bf1 The dimensions (cropbox) of the page, > > in points (i.e. 1/72th on an inch) > > Yes, I've read that, but I doesn't get it. Does it mean 1/72th points/inch > or what? They first said, the unit are points and the example tells > something from inch.
1 point = 1/72th on an inch Thus an A4 has 595x842 points ~ 8,26x11,69inches ~ 21x29,7cm > > > And what is the unit of the parameters renderToImage(xres, yres)? > > > Are > > > those resolutions in dots/inch? > > > > http://people.freedesktop.org/~aacid/docs/qt4/classPoppler_1_1Page.html# > > a43b b866fa1f848156799eb8d9e38d0aa the parameters (x, y, w, h) in pixel > > coordinates > > The coordinates yes. But what unit have the parameters xres and yres, which > are used to calculate the resolution and the size of the image. It's dpi, thus if you use 72 you'll get an image of 595x842 pixels for an A4 Albert > > But still thanks for your answer! > > Regards, > Joachim _______________________________________________ poppler mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/poppler
