# pgmramp(1) - man - phpMan

[pgmramp(1)](https://www.chedong.com/phpMan.php/man/pgmramp/1/markdown)                             General Commands Manual                            [pgmramp(1)](https://www.chedong.com/phpMan.php/man/pgmramp/1/markdown)



## NAME
       pgmramp - generate a grayscale ramp

## SYNOPSIS
       **pgmramp** **-lr**|**-tb** | **-rectangle**|**-ellipse** _width_ _height_

## DESCRIPTION
       Generates  a graymap of the specified size containing a black-to-white ramp.  These ramps are
       useful for multiplying with other images, using the _pnmarith_ tool.

## OPTIONS
### -lr

### -tb

### -rectangle
              A rectangular ramp.

### -ellipse
              An elliptical ramp.

       All flags can be abbreviated to their shortest unique prefix.

## SEE ALSO
       [pnmarith(1)](https://www.chedong.com/phpMan.php/man/pnmarith/1/markdown), [pgm(5)](https://www.chedong.com/phpMan.php/man/pgm/5/markdown)

## AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.



                                          24 November 1989                                [pgmramp(1)](https://www.chedong.com/phpMan.php/man/pgmramp/1/markdown)