On May 8, 2012, at 3:16 PM, Peter Teeson <ptee...@me.com> wrote:
> This is a continuation of my previous issue stroking a bezier path.
Hi Peter, I'm not sure what issue you were having.
WRT:
> In my sub-class -initWithFrame:frame I do the following:
> self = [super initWithFrame:frame];
> if (self) {
> // Initialization code here.
> frame.size.width = 200.0;
> frame.size.height = 200.0;
> frame.origin.x = 50.0;
> frame.origin.y = 50.0;
>
> Should I be pixel aligning it?
Your code above is already point aligned, there for it is pixel aligned. If the
frame was say 200.2 or 200.5, then you should pixel align it.
> And is this the correct way?
> frame = [self convertRectToBacking: frame];
> frame = [self convertRectFromBacking: frame];
The above code doesn't do anything except convert back and forth. Say you have
a frame origin of 200.5 that you want to be pixel aligned, you would do this:
> frame = [self convertRectToBacking: frame];
Floor in "pixel space".
frame.origin.x = floor(frame.origin.x);
> frame = [self convertRectFromBacking: frame];
Now frame is pixel aligned and is back in "point space".
corbin
>
> [self setFrame:frame];
> [self setNeedsDisplay:YES];
> … ….
>
>
> Thanks….
>
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