Gnuplot
From Utah Center for Neuroimage Analysis
Installing and Running Gnuplot
gnuplot is a handy light weight plotting tool. See [1] for more information.
Installing Gnuplot:
I believe the best way to install this on mac os is to download the source from here: ftp://ftp.gnuplot.info/pub/gnuplot/gnuplot-4.0.0.tar.gz (However, I'm not familiar with installing sofware for the mac so there may be other resources)
I installed and ran this on a mac with the following commands:
gunzip gnuplot-4.0.0.tar.gz
tar -xvf gnuplot-4.0.0.tar
cd gnuplot-4.0.0/
./configure --prefix=/home/.. ../gnuplot (put the dir you want gnuplot
installed here)
make
make install
cd /home/.. ../gnuplot/bin
gnuplot
Using Gnuplot with the ZebraViewer
To use gnuplot with the ZebraViewer follow these steps:
1) Run ZebraViewer and add points for Axons
2) Using the color bar on the right, right-click, and choose export
points. This will save all the xyz points for that color to a file. Do
this for all the axon paths you want to view in gnuplot.
3) start gnuplot
4) plot the points from ZebraViewer:
gnuplot> splot "axon1.pts" with lines, "axon2.pts" with lines
Here's an example of two point files plotted in gnuplot:

