Comments on: Accessing internal Java class members

By: Yair Altman

Yair Altman — Thu, 05 Nov 2015 11:33:52 +0000

In reply to Grunde. You can only access public static variables. The javadoc that you provided does not list this variable as public, but this does not necessarily mean that it is not. The easiest way would be to test it in Matlab directly. I promise that it will not crash your computer...

By: Grunde

Grunde — Thu, 05 Nov 2015 11:29:52 +0000

In reply to Grunde. Ignore this :)

By: Grunde

Grunde — Thu, 05 Nov 2015 11:11:50 +0000

Hi,
I’m trying to access a Static variable in a Java Interface. More specifically org.orekit.utils.Constants.WGS84_EARTH_EQUATORIAL_RADIUS. Is it possible from Matlab?

URL: https://www.orekit.org/site-orekit-7.0/apidocs/org/orekit/utils/Constants.html

By: Martin Lechner

Martin Lechner — Thu, 13 Aug 2015 13:29:22 +0000

Thank you for the very good information to use Java from Matlab. I have the problem the Matlab normally casts all scalar primitive data types to double. This is OK for the most types except long. For big long numbers (> 4.5e15) this would lead to round off errors (e.g. eps(2^63-1) = 2048). Only Java arrays of type long are converted to Matlab int64 arrays. We filled a Bug report and they forwarded this issue to the developer team (typical for Matlab and we have no information what they are really doing). Unfortunately my college Andreas J. found the following work around solution: cast method call with int64

format long 
longMax = int64(java.lang.Long.MAX_VALUE)