Within the 3DNA v2.4 distribution, the original Perl
blocview script has been removed to avoid conflict with the Ruby script with the same name. The Ruby
blocview script is the one to be used within 3DNA v2.0. Since you asked for the long outdated Perl script (
no longer supported), I have dug it out -- see the attached file
blocview.pl.
Note that DSSR 2.0 has replaced 3DNA v2.4. Specifically, the DSSR
--blocview option has completely superseded the functionality of the Ruby
blocview script in 3DNA v2.4, plus more advanced features. See the paper "
DSSR-enabled innovative schematics of 3D nucleic acid structures with PyMOL" and
http://skmatic.x3dna.org.
Best regards,
Xiang-Jun