[Orekit Users] Building Orekit: commons-math dependency and TLEPropagator JUnit test

[Christophe Garion <garion@isae.fr>]

Hello,

I have cloned the Orekit git repo and built Orekit using ant. The
BUILDING.txt file precises that you have to "customize" the properties
for the get-apache-commons-math target, but would it be easier to switch
directly to commons-math3 in the build.xml file:

  <property name="commons-math.version"    value="3.0" />
  <property name="commons-math.jar"        value="commons-math3-${commons-math.version}.jar" />
  <property name="commons-math.maven.path" value="org/apache/commons/commons-math3" />

Moreover the BUILDING.txt file refers to commons-math 2.2 (see the
Eclipse part) and it seems that commons-math 3.0 is necessary to build
Orekit.

Finally, I have a JUnit failure for TLEPropagator:

Testcase: testBodyCenterInPointingDirection(org.orekit.propagation.analytical.tle.TLEPropagatorTest):   FAILED
expected:<0.0> but was:<1.1959071802805094E-7>
junit.framework.AssertionFailedError: expected:<0.0> but was:<1.1959071802805094E-7>
        at org.orekit.propagation.analytical.tle.TLEPropagatorTest.testBodyCenterInPointingDirection(Unknown Source)

I have not investigated this error so far, sorry.

Thanks for the good work by the way,

Christophe

-- 
Christophe Garion          ISAE/DMIA - SUPAERO/IN
garion@isae.fr             10 avenue Edouard Belin
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