John Ahrens, LLC announced today the release of imSimReal 0.1RC4, an Objective-C based open source framework for simulating real time physics on the iPhone and Mac.

The 0.1 release supports gravitational attraction on several planets.

The RC4 release includes cleanup of the source code and enhanced unit tests and an iPhone acceptance test suite. which uses UITableViews to handle the various tests.

For more details about imSimReal, go to http://www.imsimreal.com/. For more information about this download, go to the imSimReal blog. To get the latest, go to the imSimReal downloads page, or get the latest at github.

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John Ahrens, LLC reports releasing imSimReal 0.1 Release Candidate 1 for public use. imSimReal is a physics framework for realtime simulations, such as games and scientific and engineering applications. Release 0.1 contains two public classes.

IMSRGravity is a wrapper for managing the surface gravitational acceleration for celestial bodies. Version 0.1 contains Earth, Moon and Jupiter. Gravitational acceleration is in units of meters/second².

IMSRPointObject represents a point mass. It maintains the object position, velocity and acceleration in three dimensions. Position elements are in units of meters. Velocity in meters/second and acceleration in meters/second². Acceleration is negative towards the center of mass. (Gravity is a negative value).

You can find the source code in the github repository.

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Updated John-Ahrens.com website last night with a layout developed by Nikki.

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