Need informations about NSAnimation on MacOS

[Xavier Glattard]

Hello :-)

The NSAnimation reference page at developer.apple.com does not explain
everything. As i dont have a Mac i ask for some help.

1) NSAnimation maintains an array of NSAnimationProgress (floats).
[NSAnimation -progressMarks] return a NSArray.
- Is this NSArray a reference to the internal array of the NSAnimation object,
or a copy ? (should be a copy...)
- May this array contain a NSAnimationProgress more than once ?
- Is it sorted ? How ?

2) I dont understand the 3 NSAnimationCurve...
- Are they linear or polynomic functions ?
- what do 'slowly speeds up' and 'slows down' really mean ?

Thank in advance !

Xavier