papergen -- N-up grid/ruled/dot paper generator

I wanted dot grid paper in Half-Letter size. I want the grid size to be precise, not printing a full Letter size page in 2-up mode.

So I wrote my own script using Ruby and the Prawn gem.

The script currently supports the following format:

• square dot grid
• horizontally ruled
• vertically ruled
• square grid
• horizontally-aligned equilateral triangle dot grid
• vertically-aligned equilateral triangle dot grid
• horizontally-aligned oscilliating Fibonacci sequence-based dot grid (EXPERIMENTAL)
• vertically-aligned oscilliating Fibonacci sequence-based dot grid (EXPERIMENTAL)

The n-up is specified by the number of rows and columns to partition the page into. Default is 2-up.

Paper size is US Letter by default.

Usage

From the command line help:

-h, --help: Show help.

-r, --rows:
	Number of rows to split the page into.  Default is 1.

-l, --columns:
	Number of columns to split the page into.  Default is 2.

-n, --numpages:
	Number of pages to create.  Default is 1.

-w, --weight:
	The size, in pt (1/72"), should each dot/line be drawn.  Default is 0.5.

-s, --spacing:
	How far apart, in pt (1/72"), should the dots/lines be apart.  Default is 13.5.

-c, --colour:
	The colour, in hex RGB value, of the dots/lines to be drawn.  Default is "DDDDDD".

-t, --type:
	The type of paper to be drawn.  Here are the supported types:

		dots 		Dots in a square grid pattern
		hrule 		Horizontally ruled
		vrule 		Vertically ruled
		grid 		Square grid
		htridots 	Dots in a horizontally-aligned triangle grid pattern 
		vtridots 	Dots in a vertically-aligned triangle grid pattern 
		hfibdots 	Horizontally-aligned dots in Fibonacci sequence (EXPERMENTAL)
		vfibdots 	Vertically-aligned dots in Fibonacci sequence (EXPERMENTAL)

	Default is "dots"

--pagewidth:
	The page width in pt (1/72").

--pageheight:
	The page height in pt (1/72").

-v, --verbose:
	Turn on debug messages.

Todo

• Modularize?
• Add more types of formats just for fun.