Tiling for image files

This page applies to Harlequin v13.1r0 and later; and to Harlequin Core but not Harlequin MultiRIP

Image files such as JPEG and TIFF are processed using the HqnImage procset in Harlequin. When they are submitted to the RIP for simple processing the use of HqnImage is handled behind the scenes, but if the files are to be rendered in tiles some specific configuration must be applied.

The tiling method to be used is selected and configured using settilingparams , and the HqnImage procset must not be prevented from applying tiling; HqnImage will apply tiling unless the default setting of /NoTiling of false is changed. In addition, hqn_image_do_setpagedevice and hqn_image_do_showpage must be true , and ImageScaling must not be set to /UnitSquare . For more information see The HqnImage procset .

The HqnImage configuration can be done either using the HqnImageSetImageDefaults call to HqnImage in configuration code (combined with submitting the image file as the job), or in calls to the HqnImage entry points such as analyzeimage where a PostScript control file that calls HqnImage is submitted as the job itself.

Example tiling a TIFF file; after this call the TIFF file itself may simply be submitted as the job:

        <<
          /Page <<
            /Method /Rectangular
            /WidthN 6
          >>
        >> settilingparams
        <<
          /NoTiling false
          /hqn_image_do_setpagedevice true
          /hqn_image_do_showpage true
          /ImageScaling /FromImage
        >> /HqnImage /ProcSet findresource /HqnImageSetImageDefaults get exec