How to convert EPS(image file) file in to other image format e.g NIGMAS

Question

Hi friends,
I want to make a tool which will help to convert the EPS image file into other image format BY USING JAVA TECHNOLOGY. I havent done this type of file conversion before, so any body please explain it to me from the basic how can i go for it, what r the require things, where should i get the help of it, which java API should i use etc. i ll be vry thankful.
My actual requirement is i want to convert the EPS file into the NIGMAS(Nihon computer graphic mapping System) file format.
Thank you in anticiption.

Answer 1

The easiest, but not necesarily the best, way is to use ImageMagick's convert utility. From Java you can use Runtime.exec to invoke convert.exe ... ImageMagick is opensource and supports many different formats ( www.ImageMagick.com )
     * Converts an eps file to a graphic that is suitable for the web.
     * We use ImageMagick's 'convert' utility to convert .eps files into either gif or png format.
     * The output format is determine by the extension that you set for the output file.
     * Sample command:
     * convert -density 208x208 /export/home/kpmg/tomcattest/jsp/1.eps
     *                                    /export/home/kpmg/tomcattest/jsp/1.png
     * Although convert supports about 100 different parameters, we are only using 1:
     * -density     (sets the vertical and horizontal resolution in pixels of the image)
     * Density sets the vertical and horizontal resolution in pixels of the image.
     * It should be changed based on the resolution of the user's monitor
     * (e.g. if hi-res display settings, then density will need to be greater
     * than if running on a low-res display, which would make the same image look really big )
     * You may want to use other convert parameters, such as -sharpen
     * to make the image look better, or -compress and
     * -quality to change the kb size of the image.
     * For the full list of parameters see:     
     *      http://www.imagemagick.org/www/convert.html
     * @param inFile The absolute path to the eps file to be converted
     * @param outFile The absolute path to the desired output graphic file.
     *                         NOTE: the format of the output file is determined by the
     *                         extension that you give for this parameter (e.g. file.png will
     *                          be written as a png file )
public void eps2www(String inFile, String outFile, String density) throws Exception
          // use ImageMagick's convert program to make the www version ( png or gif, etc)
          String call = convert +
                    " -density " + density +
                              " " + inFile +
                              " " + outFile;
          try
               Process child = rt.exec( call );
               child.waitFor();
               log.debug("Convert process exit code is: " + child.exitValue() );
          catch (Exception e)
               // TO DO: this could probably be more explicit
               throw new Exception(e);     
          // log the command strings for debuggin purposes.
          log.debug( "Convert Successful: call = " + call);
     }