Concatenate PNM tiles into a single image.
This module is for use by NVIZ' "Maximum resolution PPM" option.
It concatenates a grid of <rows> x <cols> binary PPM images into a single image. The images must all be named <base>_<row>_<col>.ppm, where <row> and <col> start from one, with row one being the bottom row, and where <base> is the value of the base= option.
All images within a row must have the same height, and the widths must sum to the value of the width= option. The heights of the individual rows must sum to the value of the height= option. All images must be in "P6" (binary PPM) format.
Last changed: $Date$