Re: [Rubycocoa-talk] Ruby 'pointer to C Array' Solution

[Axel M. R. <rub...@me...>]

At 11:26 +0200 10-07-2007, Axel M. Roest (i.e. me) wrote:
>Hi,
>
>I want to use the function elementAtIndex_associatedPoints from
>OSX::NSBezierPathElement, to get to the coordinates in a curve.

The documentation is a little vague on this function, but the 
solution is as follows (thanks Laurent and Eloy): As you expect a 
point or array back, RubyCocoa thinks ahead of you and does not 
expect an empty array-pointer beforehand as you would in Obj-C. 
Instead you just get a new point or array back. You can use the 
function as follows:

element, point = curve.elementAtIndex_associatedPoints(i)

where i is the index of the curve element you're interested in.

element is one of OSX::NSMoveToBezierPathElement, 
OSX::NSLineToBezierPathElement etc.
point is an NSPoint, in the case of the above, or probably a ruby 
array of points in the case of an OSX::NSClosePathBezierPathElement, 
but I have not tested bezier curves yet.


Axel
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Axel Roest
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