atialiasing

Help
2009-09-04
2013-03-15
  • Stefan Kummer

    Stefan Kummer - 2009-09-04

    Hello,

    I am using PlPlot 5.9.4 with wxWidgets 2.8. In my wxWidgets-application I tried to make a x,y-plot using wxPLplotwindow (create a wxPLplotwindow-object; gain access to the Plplot-API via the GetStream() function). Everything works fine but the plot is not antialiased!
    How can I turn on antialiasing for a better outlook using wxPLplotwindow and wxPLplotstream? I have already tried to pass the macro "wxPLPLOT_SMOOTH_TEXT" to the constructor of wxPLplotwindow but without any success.

    Best regards
    Stefan

     
    • Werner Smekal

      Werner Smekal - 2009-09-04

      Hi Stefan,

      what compiler do you use? If you use Visual C++, no problem, just recompile wxWidgets with USE_GDIPLUS=1 option (I believe, look at the install file) and you can use the wxGraphicsContext backend. If you use MinGW you might be out of luck, since there are no gdi+ headers for MinGW (at least not legally).
      In that case you must compile and install the agg library and use the AGG backend. Tell me if you have any problems make these solutions work.

      Regards,
      Werner

       
    • Stefan Kummer

      Stefan Kummer - 2009-09-04

      Hi Werner,

      I am using gcc 4.3.3 on LinuxMint 7 (= Ubuntu 9.04).  I have installed Plplot  5.9.4 (including wxPLplot) using cmake without any options.

      Regards,
      Stefan

       
      • Werner Smekal

        Werner Smekal - 2009-09-04

        Then the wxGC driver should be available. Look in bindings/wxwidgets/wxPLplotstream.h.in for the available options, which can be given to wxPLplotwindow (...pl_style):

        /*! Style options for wxPLplotstream:
        *  wxPLPLOT_NONE: no option
        *  wxPLPLOT_FREETYPE: use freetype library instead of Hershey fonts
        *  wxPLPLOT_SMOOTHTEXT: antialiase font (if freetype library is used)
        *  wxPLPLOT_BACKEND_DC: use the standard wxDC backend (always available)
        *  wxPLPLOT_BACKEND_AGG: use the AGG backend (if available)
        *  wxPLPLOT_BACKEND_GC: use the wxGraphicsContext backend (if available)
        *  wxPLPLOT_DRAWTEXT: use wxWidgets routines to draw text
        *  wxPLPLOT_USE_HERSHEY_SYMBOLS: use hershey symbols to draw symbols instead of font symbols
        */

        So if you use wxPLPLOT_BACKEND_GC as pl_style you should get antialised output.

        HTH,
        Werner

        PS: examples/c++/wxPLplotDemo.cpp shows how to use the wxPLplotWindow regarding these options.

         
    • Stefan Kummer

      Stefan Kummer - 2009-09-04

      Hi Werner,

      now it works fine. Thank you very much.

      Regards (und Gruß aus Bayern)
      Stefan

       

Log in to post a comment.

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:

JavaScript is required for this form.





No, thanks