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img-pcx(3tk) Img img-pcx(3tk) 





NAME


img-pcx - Paintbrush format (pcx)






SYNOPSIS


package require img::pcx ?2.0?










DESCRIPTION


package require img::pcx


Like all packages of Img it does not provide new
    commands, but extends the existing Tk command image, so that
    it supports files containing raster images in the Paintbrush format (pcx).
    More specifically img::pcx extends Tk's photo
    [https://www.tcl.tk/man/tcl9.0/TkCmd/photo.html] image type.


The name of the new format handler is pcx. This handler
    provides new additional configuration options. See section Options
    for more detailed explanations.


All of the above means that in a call like image create
    photo ?name? ?options?



  
[1]

  
Image data in pcx format (options -data and -file) is
      detected automatically.

  
[2]

  
The format name pcx is recognized by the option
    -format.




In addition the value of option -format is treated as a
    list and may contain any of the special options listed in section
    Options.


The package img::pcx is a sub-package of Img. It can
    be loaded as a part of the complete Img support, via package require
    Img, or on its own, via package require img::pcx.






SUPPORTED TYPES


This format handler supports the following image types:


    
  
  • 1-bit pixels: Black and White.
    • 
  
  • 8-bit pixels: Grayscale or indexed.
    • 
  
  • 24-bit pixels: Truecolor (RGB, 8-bit channels).
    • 



All images types may be either uncompressed or run-length
  encoded.






 Image  |     Read      |     Write     |


 type   | -file | -data | -file | -data |


 ----------------------------------------


  1-bit | Yes   | Yes   | No    | No    |


  8-bit | Yes   | Yes   | No    | No    |


 24-bit | Yes   | Yes   | Yes   | Yes   |









NOTES



  
[1]

  
Chapter Image Metadata of the Img manual page describes the
      parameters of the resolution related options.








OPTIONS


The handler provides the following options:



  

  
This option is supported for reading and writing. Available since version
      1.3.
    
If set to true, additional information about the read
        or written image is printed to stdout. Default is false.

  

  

  
This option is supported for writing only. Available since version 1.3.
    
Set the compression mode to either none or rle.
        Default is rle.

  

  

  
This option is supported for writing only. Available since version 2.0.
    
Set the resolution values of the written image file. If
        yres is not specified, it is set to the value of xres.

    
If option is not specified, the DPI and aspect
        values of the metadata dictionary are written. If no metadata values are
        available, no resolution values are written.

  

  

  
This option is supported for writing only. Available since version 2.0.
    
Set the horizontal resolution value of the written image
      file.

  

  

  
This option is supported for writing only. Available since version 2.0.
    
Set the vertical resolution value of the written image
      file.

  








SEE ALSO


img, img-bmp, img-dted, img-flir, img-gif, img-ico, img-jpeg,
    img-pcx, img-pixmap, img-png, img-ppm, img-ps, img-raw, img-sgi, img-sun,
    img-tga, img-tiff, img-window, img-xbm, img-xpm






COPYRIGHT


Copyright (c) 1995-2024 Jan Nijtmans <nijtmans@users.sourceforge.net>
Copyright (c) 2002-2024 Andreas Kupries <andreas_kupries@users.sourceforge.net>
Copyright (c) 2003-2024 Paul Obermeier <obermeier@users.sourceforge.net>








  

    2.0
    img-pcx