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Re: NSView out of memory problem
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Re: NSView out of memory problem


  • Subject: Re: NSView out of memory problem
  • From: Matthew Whillock <email@hidden>
  • Date: Tue, 1 Apr 2008 16:23:52 +0100

The class reference has this to say about it:

Strokes a line between two points using the current stroke color and the default drawing attributes.
+ (void)strokeLineFromPoint:(NSPoint)point1 toPoint:(NSPoint)point2



So it will just draw a line.

Cheers,
Matt


Are you sure? This could be just a convenient interface for creating a
bezier object with the points passed, stroking it and releasing or
autoreleasing it. The docs say nothing about how it's implemented.

A better idea might be to create ONE bezier object at the top of the
loop, collect all the lines into it, then stroke it in one go after
the loop terminates. I do this for drawing grids with many thousands
of lines and have never hit a memory problem so far.

------
S.O.S.


On 2 Apr 2008, at 12:09 am, Jean-Daniel Dupas wrote:
Yes, an a better way to fix it will be to use a static method:

[NSBezierPath strokeLineFromPoint: linebottom  toPoint: linetop];

It will avoid creation of an object for each segment.


-- Matthew Whillock email@hidden

Mullard Space Science Laboratory
Holmbury St Mary
Surrey RH5 6NT
UK




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