ppmglobe
Create printable paper globe strips
TLDR
Create globe strips
$ ppmglobe [strips] [input.ppm] [output]
Create 12-strip globe$ ppmglobe 12 [map.ppm] globe
SYNOPSIS
ppmglobe strips input output
DESCRIPTION
ppmglobe converts an equirectangular map projection image into a set of tapered strips that can be printed, cut out, and assembled into a paper globe. The number of strips determines how many pieces the globe is divided into, with more strips producing a smoother sphere.The input image should be in equirectangular (plate carrée) projection, where longitude maps linearly to the x-axis and latitude to the y-axis. Each output strip is saved as a separate numbered PPM file. Part of the Netpbm toolkit.
PARAMETERS
STRIPS
Number of globe strips.INPUT
Input map image.OUTPUT
Output filename base.
INSTALL
sudo apt install netpbm
sudo dnf install netpbm
sudo pacman -S netpbm
sudo apk add netpbm
sudo zypper install netpbm
brew install netpbm
nix profile install nixpkgs#netpbm
CAVEATS
Assumes equirectangular input. Part of Netpbm suite.
HISTORY
ppmglobe was created as part of Netpbm for paper globe generation.
SEE ALSO
ppm(5)
