Import Geant4 9.5.0 source tree

source/geometry/navigation/History

@@ -1,4 +1,4 @@
-$Id: History,v 1.152 2010/12/15 13:47:10 gcosmo Exp $
+$Id: History,v 1.152 2010-12-15 13:47:10 gcosmo Exp $
 -------------------------------------------------------------------
 
      =========================================================
@@ -17,6 +17,153 @@ committal in the CVS repository !
      * Reverse chronological order (last date on top), please *
      ----------------------------------------------------------
 
+November 24th, 2011 - J.Apostolakis (geomnav-V09-04-12)
+-----------------------------------
+ G4VIntersectionLocator: Use only 'last' Normal.
+   Disable fallback of using helper Navigator, as it appears 
+   to cause problems in the presence of additional geometries.
+
+November 23rd, 2011 - J.Apostolakis (geomnav-V09-04-11)
+-----------------------------------
+ G4MultiNavigator: adapt to revisions of intersection logic,
+   to provide Exit Surface Normal for step ending on boundary.
+   First implementation of methods GetGlobalExitNormal,
+     GetLocalExitNormal and GetLocalExitNormalAndCheck.
+   The Local methods are not adapted for this case - they complain:
+    - warn if one navigator  limited the step;
+    - fail report error if multiple navigators limited the step.
+
+   Added data members to record number of Navigators which limited
+    the step in the last call to ComputeStep ( fNoLimitingStep ),
+    and the id in case of just one having limited it (fIdNavLimiting).
+
+November 18th, 2011 - J.Apostolakis (geomnav-V09-04-10)
+-----------------------------------
+ G4Navigator.cc: fixed valid flag to mean correctly 
+    'convexity' and 'have-calculated' in its two use cases.
+ - ComputeStep (G4Navigator)
+   * Undid / corrected change to 'fValidExitNormal' - 
+                                   (meaning= exited solid is convex )
+    when it is recalculated for the case of exiting. 
+ - Minor fix to GetLocalExitNormal (G4Navigator)
+   * Always set Valid=calculated for Local Normal
+
+November 18th, 2011 - J.Apostolakis (geomnav-V09-04-09)
+-----------------------------------
+ G4SimpleLocator, G4BrentLocator & G4MultiLevelLocator.
+ - Revised all Locator classes to use GetLastSurfaceNormal
+   which first calls the robust GetLastSurfaceNormal 
+   instead of calling GetLocalSurfaceNormal 
+ *Corrects* ATLAS stuck track issues for hard test cases.
+
+November 11th, 2011 - G.Cosmo (geomnav-V09-04-08)
+-----------------------------
+- Trivial fixes for Coverity defects in G4GeomTestPoint and G4GeomTestVolPoint.
+- Some code cleanup...
+
+October 28th, 2011 - J.Apostolakis (geomnav-V09-04-07)
+----------------------------------
+- Fix in G4Navigator::GetLocalExitNormal() to use end-point of last
+  step (not start point) when calculating normal at end of step.
+- New method GetLocalExitNormalAndCheck(3-vec, *valid) for checking,
+  now used by GetGlobalExitNormal().
+- Added new state 'fLastStepEndPointLocal' to the state of G4Navigator. 
+
+October 26th, 2011 - J.Apostolakis (geomnav-V09-04-06)
+----------------------------------
+- Fix to G4Navigator::GetLocalExitNormal(): rewrote the case when ComputeStep()
+  has been called but not Locate.
+  If 'entering', must first transform 'fLastLocatedPointLocal' to the new
+  daughter coordinates before using them.
+  If 'exiting' use the stored values (as after Locate()).
+- Created new method GetMotherToDaughterTransform() in G4Navigator:
+  'fLastLocatedPointLocal' remains in the coordinates of current step's
+  volume, i.e. what is called mother (always) , until after the re-location
+  (i.e. call to LocateGlobalPointAndSetup()) 
+
+October 25th, 2011 - J.Apostolakis (geomnav-V09-04-05)
+----------------------------------
+- G4Navigator: ComputeSafety() no longer sets flag meant for ComputeStep().
+
+October 24th, 2011 - J.Apostolakis (geomnav-V09-04-04)
+----------------------------------
+- Improvement in G4VIntersectionLocator (for use in GetLocalSurfaceNormal()):
+  make a data member of type G4TouchableHistoryHandle to replace interim use
+  of 'static' for local variable in GetLocalSurfaceNormal().
+- G4MultiLevelNavigator: put in missing change of threshold.
+
+October 21th, 2011 - J.Apostolakis (geomnav-V09-04-03)
+----------------------------------
+- Several fixes and improvements in G4VIntersectionLocator:
+  o Fix to GetSurfaceNormal(): fixed check in case of 'last computed' normal. 
+  o Fix to GetGlobalSurfaceNormal(): use correct navigator (helper) to transform
+    normal from local to global
+  o Optimisation to GetLocalSurfaceNormal(): reuse G4TouchableHistoryHandle
+    (via static ad interim), do not allocate for every call.
+    Note: *limitation* of using helper - cannot cope with coincident surfaces in
+          this version (need to use direction of trial *chord* when locating).
+  o GetLocalExitNormal(): call Surface Normal only if on Surface or near inside,
+    else return 'false' for validity.
+  o All 'Normal' methods: check Normal vector to make sure its magnitude is
+    within 0.001 of 1. 
+
+October 18th, 2011 - J.Apostolakis 
+----------------------------------
+- Locators (Simple, Brent, Multi-Level):
+  Refined the threshold for accepting a candidate intersection
+  The new criterion is much smaller (to capture more cases) : 
+        sagitta < tolerance    ~=   1e-9 mm
+  whereas it used to be
+        sagitta < geom_mean( tolerance, delta_intersection )
+        ie.  sagitta < 1e-6 mm.
+- Corrected compilation warning from gcc 4.6 (unused variables).
+- Corrected problem in G4Navigator::GetLocalExitNormal (not set variable).
+
+October 11th, 2011 - J.Apostolakis (geomnav-V09-04-02)
+----------------------------------
+- Created *fix* for ATLAS problem of tracks stuck on boundary of volumes: 
+  Improved the condition for accepting a candidate intersection with
+  a boundary in the Locator classes.
+  >> It now *checks* that the track will enter the new volume. <<
+  All three Locator classes were revised to use the new convergence 
+  condition ( ie G4SimpleLocator, G4BrentLocator and G4MultiLevelLocator).
+  Note: the check uses the dot product between the exiting normal and
+        the estimated momentum of the track at the approximate curve
+        point near the entry/intersection point.
+- Revised G4VIntersectionLocator:
+  * New method GetSurfaceNormal, to get last normal or, if not
+    available obtain new estimate from GetGlocalSurfaceNormal;
+  * Corrected AdjustmentOfFoundIntersection() to use GlobalExitNormal 
+    instead of Local(ExitNormal);
+  * Renamed arguments of IntersectChord (to no longer use fP prefix).
+- Revised G4Navigator::GetLocalExitNormal():
+  * improved GetLocalExitNormal() method, to allow it to be called
+    before Locate is called at the endpoint of the last ComputeStep;
+  * adding state to identify whether ComputeStep was called last 
+    (rather than a Locate method);
+  * adding a method to provide the Exit Normal in Global coordinates. 
+
+August 11th, 2011 - G.Cosmo (geomnav-V09-04-01)
+---------------------------
+- Migrated to new G4Exception scheme for warnings and errors.
+- Defined scheme for warnings/errors coding:
+  + 1xxx for warnings, 0xxx for errors.
+  Code numbering:
+  + 0001: not supported or implemented features;
+  + 0002: invalid setup/construct;
+  + 0003: invalid run condition;
+  + 1001: incorrect setup; automatically adapted.
+  + 1002: notification.
+
+May 12th, 2011 - G.Cosmo (geomnav-V09-04-00)
+------------------------
+- Fixed compilation warnings from gcc-4.6.0 for variables set but not used.
+
+May 4th, 2011 - J.Apostolakis
+-----------------------------
+- Adjusted constructor in G4PropagatorInField to reorder class' data members,
+  to separate a) invariants, b) state information and c)Dependent objects.
+
 December 15th, 2010 - G.Cosmo (geomnav-V09-03-10)
 -----------------------------
 - Added inline method for creation of a touchable-history given a navigation