Hi Philippe,
The jumping is caused by our use of rint() in NSButtonCell - in fact, I think
we should avoid rint() entirely for graphics, because it uses a "round halfway
cases to the nearest even integer" algorithm; so 1.5 rounds to 2, but 2.5 also
rounds to 2.
The annoying thing is that non
On 09.07.2011 21:04, Eric Wasylishen wrote:
Hi Philippe,
The jumping is caused by our use of rint() in NSButtonCell - in fact, I think we should
avoid rint() entirely for graphics, because it uses a "round halfway cases to the
nearest even integer" algorithm; so 1.5 rounds to 2, but 2.5 also r
On 2011-07-10, at 1:51 PM, Fred Kiefer wrote:
> On 09.07.2011 21:04, Eric Wasylishen wrote:
>> Hi Philippe,
>>
>> The jumping is caused by our use of rint() in NSButtonCell - in fact, I
>> think we should avoid rint() entirely for graphics, because it uses a "round
>> halfway cases to the near
Hi
Le dimanche 10 juillet 2011 à 21:51 +0200, Fred Kiefer a écrit :
> On 09.07.2011 21:04, Eric Wasylishen wrote:
> > Hi Philippe,
> >
> > The jumping is caused by our use of rint() in NSButtonCell - in fact, I
> > think we should avoid rint() entirely for graphics, because it uses a
> > "round
Hi,
Sure. We have this code in NSButtonCell drawImage:withFrame:inView:
position.x = MAX(NSMidX(cellFrame) - (size.width / 2.), 0.);
position.y = MAX(NSMidY(cellFrame) - (size.height / 2.), 0.);
Suppose position.x is 16.5, then rint() would round that to 16, so the image
will be drawn half a
On 2011-07-11, at 1:23 AM, Riccardo Mottola wrote:
> Hi,
>
>>> Sure. We have this code in NSButtonCell drawImage:withFrame:inView:
>>>
>>> position.x = MAX(NSMidX(cellFrame) - (size.width / 2.), 0.);
>>> position.y = MAX(NSMidY(cellFrame) - (size.height / 2.), 0.);
>>>
>>> Suppose position.x i
On 11 Jul 2011, at 08:23, Riccardo Mottola wrote:
> To my knowledge, rint() doesn't do any advanced rounding. It doesn't try to
> minimize the error by rounding odd numbers down and even up or something like
> that, it uses a standard round direction. 16.5 will become 17 as 17.5 will
> become
Hi,
Note that with steps of 0.1 you will not see the round-to-nearest-even
behavior, as it will not trip on the exact halfway points due to
rounding errors. Increment by 0.25 to check whether
round-to-nearest-even is in action.
Perhaps indeed, however Eric already has proven rounding to
Hi,
I committed the change which I proposed earlier, introducing the following in
GSGuiPrivate.h:
/**
* Rounds to the nearest integer, and in the case of ties, round to the
* larger integer. This is the recommended rounding function for rounding
* graphics points.
*
* For example:
* GSRoun
Le mardi 12 juillet 2011 à 15:18 -0600, Eric Wasylishen a écrit :
> Hi,
> I committed the change which I proposed earlier, introducing the following in
> GSGuiPrivate.h:
>
> /**
> * Rounds to the nearest integer, and in the case of ties, round to the
> * larger integer. This is the recommended
On the topic of rounding, there is one new Foundation function introduced with
10.7:
NSRect NSIntegralRect (NSRect aRect, NSAlignmentOptions opts);
NSAlignmentOptions is an enumerated type specifying rounding directions.
David
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