1. NAME

pgmramp - generate a grayscale ramp

2. SYNOPSIS

pgmramp

R -lr | -tb |

R -rectangle | -ellipse width height

3. 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.

4. OPTIONS

-lr

    A left to right ramp.

-tb

    A top to bottom ramp.

-rectangle

    A rectangular ramp.

-ellipse

    An elliptical ramp.

All flags can be abbreviated to their shortest unique prefix.

5. SEE ALSO

pnmarith(1), pgm(5)

6. AUTHOR

Copyright (C) 1989 by Jef Poskanzer.