Tumblr Grid

Attending the inaugural golang ny group at the Tumblr offices, inspired me to add tumblrgrid to the collection of SVGo clients. Tumblrgrid makes a SVG file that displays a flexible, clickable grid of pictures from a set tumblr blogs, possibly filtered with tags. Data may be read from a live network or from a local cache. You can get tumblrgrid with:

$ go get github.com/ajstarks/svgo/tumblrgrid

You will need to edit the source to add your own tumblr API key. The command options are:

 -f=false: read from local files
 -g=5: gutter (pixels)
 -n=30: picture limit
 -nc=5: number of columns
 -p=false: link to original post
 -tag="": filter tag
 -tw=75: thumbnail width

An interesting use of tumblrgrid is to view pictures from related tumblrs. For example, this list:

f0o0od.tumblr.com
ign0ranceisbliiiss.tumblr.com
agilaagira.tumblr.com
geek-art.tumblr.com

represents a chain of tumblrs that refer to each other. After collecting them in a file called tlist, this command line:

$ tumblrgrid -nc 4 -n 20 `cat tlist`

produces:

Changing the command line to

$ tumblrgrid -nc 2 -n 20 `cat tlist`

reduced the number of columns to 2 which causes the labels to be rotated.

Documenting Code and Pictures

For the SVGo workshop I had to document many examples of code+pictures, so I created a workflow to create consistently formatted illustrations of SVGo code and the pictures they produce. Below is the script that automates the process. The heart of the script is a small Go program, codepic which creates a SVG file of code and picture:

Here's the script:

#!/bin/sh
for i in $*
do
    base=`basename $i .go`
    gofmt -w -spaces -tabindent=false -tabwidth=4 $i &&
    goc $base && 
    ./${base} > ${base}.svg && 
    codepic -codeframe=f -font Inconsolata -fs 14 -ls 16 $i > ${base}-slide.svg && 
    svg2pdf ${base}-slide.svg
done

for each file the script:

1. formats the source
2. builds the source
3. runs the program and captures its output
4. make a slide showing the code and output
5. convert the slide to PDF for inclusion in Keynote