PDF backend for diagrams drawing EDSL http://www.alpheccar.org
|Latest on Hackage:||0.3.1|
This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
diagrams-pdf is a work in progress, and some features are not implemented yet. However, it is functional enough.
cabal update && cabal install diagrams-pdf
A simple example that uses diagrams-pdf to draw a square.
import Diagrams.Prelude import Diagrams.Backend.Pdf.CmdLine b1 = square 20 # lw 0.002 main = defaultMain (pad 1.1 b1)
Save this to file named
Square.hs and compile this program:
ghc --make Square.hs
This will generate an executable which, when run produces a Pdf file. Run the
executable with the
--help option to find out more about how to call it.
$ ./Square --help Command-line diagram generation. Square [OPTIONS] Common flags: -w --width=INT Desired width of the output image (default 400) -h --height=INT Desired height of the output image (default 400) -o --output=FILE Output file -c --compressed Compressed PDF file -? --help Display help message -V --version Print version information
You must pass an output file name with a
$ ./Square -o square.pdf
Two goals of the HPDF library were : powerful typesetting and no dependence on the OS libraries (for better portability). But, HPDF was also my first big library mainly done to learn. So I had to limit myself.
As a consequence, HPDF is only using the standard fonts defined in the PDF specification. It is not (yet) possible to include and use any other fonts.
So, for diagrams it is causing a problem : the face setting has nearly no meaning. Face is currently selected from the Italic and Oblique settings. Times is the default but when oblique is chosen, Helvetica is used.
I hope to improve this in future releases.
Here is a list of the fonts in HPDF: