This is a .v3draw writer plugin that allows ImageJ to write .v3draw files readable by Vaa3D. .v3draw format is a minimalist XYZCT format designed to facilitate simple and rapid file I/O in Vaa3d.
The Vaa3d_Writer project is built off of the minimal-ij-1-plugin, the code started from Albert Cardona's [great tutorials] (http://albert.rierol.net/imagej_programming_tutorials.html), utilizing previous work from Hanchuan Peng's group. Instructions for obtaining Vaa3D source code can be found here