Changeset 1315 for trunk/source/geometry/solids/Boolean/History

Timestamp:

Jun 18, 2010, 11:42:07 AM (14 years ago)

Author:

garnier

Message:

update geant4-09-04-beta-cand-01 interfaces-V09-03-09 vis-V09-03-08

File:

• trunk/source/geometry/solids/Boolean/History (modified) (2 diffs)

trunk/source/geometry/solids/Boolean/History

@@ -1 +1 @@
 
-$Id: History,v 1.62 2007/10/24 08:19:11 gcosmo Exp $
+$Id: History,v 1.64 2010/05/11 15:04:01 gcosmo Exp $
 -------------------------------------------------------------------
 
@@ -20 +20 @@
      * Reverse chronological order (last date on top), please *
      ----------------------------------------------------------
+
+ May 11, 2010  J.Allison                  geom-bool-V09-03-00
+  - Introduced recursive algorithm in CreatePolyhedron(): it uses
+    HepPolyhedronProcessor from 'graphics_reps', which tries small shifts
+    in an attempt to avoid numerical problems in the calculation of the
+    polyhedron in BooleanProcessor. Recursion allows HepPolyhedronProcessor
+    to try all permutations, also for Booleans of Booleans.
+    Helps in reducing the number of cases of "Error in Boolean processor" for
+    visualization, but still some stubborn cases are left.
 
  Oct 24, 2007  V.Grichine                 geom-bool-V09-00-00