From 87dcdf16eded6666d6a9d96a0c67c2d1a025f247 Mon Sep 17 00:00:00 2001
From: Andre Sailer <andre.philippe.sailer@cern.ch>
Date: Thu, 7 Apr 2022 16:09:36 +0200
Subject: [PATCH] Release Notes for v01-20-02
---
doc/ReleaseNotes.md | 73 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 73 insertions(+)
diff --git a/doc/ReleaseNotes.md b/doc/ReleaseNotes.md
index e18f8b1fd..d468475c5 100644
--- a/doc/ReleaseNotes.md
+++ b/doc/ReleaseNotes.md
@@ -1,3 +1,76 @@
+# v01-20-02
+
+* 2022-04-04 Sanghyun Ko ([PR#902](https://github.com/aidasoft/dd4hep/pull/902))
+ - Fix a bug that cannot set G4 const property, following up #884
+
+* 2022-03-30 Valentin Volkl ([PR#899](https://github.com/aidasoft/dd4hep/pull/899))
+ - cmake: DD4hepConfig: Drop unnecessary call to DD4HEP_SETUP_BOOST_TARGETS
+
+* 2022-03-30 Markus Frank ([PR#898](https://github.com/aidasoft/dd4hep/pull/898))
+ - Reduce coverity warnings
+
+* 2022-03-21 Markus Frank ([PR#897](https://github.com/aidasoft/dd4hep/pull/897))
+ See for the example
+ -- /examples/ClientTests/src/MaterialTester_geo.cpp
+ -- /examples/OpticalSurfaces/compact/ReadMaterialProperties.xml
+ -- /examples/OpticalSurfaces/scripts/ReadMaterialProperties.py
+
+ The python file is only there to show that the G4 simulation does not get screwed.....
+ Otherwise: to define properties, which do not participate in Geant4:
+ ```
+ <material name="Water">
+ <D type="density" value="1.0" unit="g/cm3"/>
+ <composite n="2" ref="H"/>
+ <composite n="1" ref="O"/>
+ <!-- Properties used by Geant4 -->
+ <property name="RINDEX" ref="RINDEX__0x123aff00"/>
+ <property name="ABSLENGTH" ref="ABSLENGTH__0x123aff00"/>
+ <property name="FASTCOMPONENT" ref="FASTCOMPONENT__0x123aff00"/>
+ <property name="SLOWCOMPONENT" ref="SLOWCOMPONENT__0x123aff00"/>
+ <!-- Properties ignored by Geant4 -->
+ <property name="Property_of_mine" ref="Water__0x123aff00"/>
+ <constant name="BirksConstant" ref="Birk__Water|Geant4-ignore"/>
+ <!-- Constants ignored by Geant4 -->
+ <constant name="Constant_of_mine" ref="Water__Mine|Geant4-ignore"/>
+ </material>
+ ```
+ where:
+ ```
+ <properties>
+ <constant name="Birk__Water|Geant4-ignore" value="12.345678"/>
+ <constant name="Water__Mine|Geant4-ignore" value="87.654321"/>
+ </properties>
+ ```
+ and
+ ```
+ <matrix name= "Water__0x123aff00" option="Geant4-ignore" coldim="1" values="
+ 2.034*eV
+ 2.068*eV
+ 2.103*eV
+ 2.139*eV
+ 2.177*eV
+ 2.216*eV
+ "/>
+ </properties>
+ ```
+ For non-const properties you have to set the option to "Geant4-ignore",
+ otherwise you append the string to the name. The "ref" string in the material
+ and the property must match.
+ In the program you can then access the propertiers by name like this:
+ ```
+ Material material(...)
+ double v = material->GetConstProperty("BirksConstant");
+ TGDMLMatrix* m = material->GetProperty("Property_of_mine");
+ ```
+ like any other property. See for details:
+ /examples/ClientTests/src/MaterialTester_geo.cpp lines 78-108
+
+* 2022-03-21 Wouter Deconinck ([PR#896](https://github.com/aidasoft/dd4hep/pull/896))
+ - edm4hep: don't add particle as parent to its daughters, and vice versa
+
+* 2022-03-15 Paul Gessinger ([PR#895](https://github.com/aidasoft/dd4hep/pull/895))
+ - Allow relaxing the python version requirements at CMake level via option `DD4HEP_RELAX_PYVER`.
+
# v01-20-01
* 2022-03-08 Markus FRANK ([PR#894](https://github.com/AIDASoft/DD4hep/pull/894))
--
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