Oresme is a plotting framework for GNUstep (and Cocoa).
Current version: unreleased, check SVN.
OresmeKit, a plotting and charting framework for
Objective-C, GNUstep (and Cocoa/Macintosh).
The kit offers custom Views that can be embedded in the
application and display data at need.
Why OresmeKit? In honour of Nicolas Oresme
the antique philosopher who thought about coordinates long
before Cartesius. Because Cartesius was too predictable as a
name and too tied to X-Y plotting, while OresmeKit shall
support more chart types in the future.
Cartesius, Example application, showing f(x) = sinc(x):