Importing NanoBlogger post "Getting numbers from journal figures"

diff --git a/posts/Getting_numbers_from_journal_figures.mdwn b/posts/Getting_numbers_from_journal_figures.mdwn
new file mode 100644 (file)
index 0000000..57958bc
--- /dev/null
+++ b/posts/Getting_numbers_from_journal_figures.mdwn
@@ -0,0 +1,25 @@
+[[!meta  title="Getting numbers from journal figures"]]
+[[!meta  date="2008-09-06 00:20:30"]]
+This morning I wrote up this quick and easy way to get actual numbers
+out of graphs and whatnot that show up in journal articles.
+
+    $ pdfimages article.pdf fig
+    $ clickloc.tk fig-000.ppm > fig-000.pixels
+    $ scale_click.sh 0 10 5 20 fig-000.pixels > fig-000.data
+
+Just use your first four clicks in
+[clickloc.tk](http://www.physics.drexel.edu/~wking/code/tcl-tk/clickloc.tk)
+to mark out the x and y minimum and maximum values.  Then use
+[scale_click.sh](http://www.physics.drexel.edu/~wking/code/bash/scale_click.sh)
+to convert the pixel values to the units listed in the figure.  In my
+example, the x axis ran from 0 to 10 units, and the y axis ran from 5
+to 20 units.  Supports log-scaled axes too.
+
+Having gotten some numbers, my sawtooth simulator matches up fairly
+well to [Schlierf & Rief's
+results](http://www.biophysj.org/cgi/content/abstract/90/4/L33) on
+both models.  Hooray! ;).
+
+[[!tag  linux]]
+[[!tag  programming]]
+[[!tag  theory]]