> Yes, you are transforming the pointsPath 'in place'.
That was it.
> I thought I'd mentioned the need to do that in my previous message: "You'll
> need to regenerate a new path for each plot though, as the path will be
> permanently changed by the above." I guess it wasn't clear what I meant b
On 05/12/2009, at 10:59 AM, Shane wrote:
> Anyone see anything wrong that I'm doing?
Yes, you are transforming the pointsPath 'in place'. You need to make a copy of
the original path, apply the transform to it and draw the copy. Making a copy
every time in drawRect: should be OK unless your p
Shane wrote:
So my thought is that somehow the transformations are not resetting to
the identity matrix, but they are as far as I can tell. Maybe, I'm
thinking, that the transforms are being added on top of each other as
the view resizes.
That's a fair description of what your code is doing.
> That then just leaves you with the translation to deal with, for positioning
> the scaled path where you want it.
>
I really hate to post this again, but I believe I'm doing it right,
but there's obviously something I'm not understanding. By trying to
figure out what's wrong w/ my scaling, I've
On 02/12/2009, at 3:42 PM, Shane wrote:
> - (void) appendPoint:(NSPoint) point
> {
> if (firstPoint) {
> [pointsPath moveToPoint:point];
>
> firstPoint = NO;
> }
>
> [pointsPath lineToPoint:point];
>
> pointCoun
> The problem is that the code you've posted is not the whole story.
Sorry about that, just for clarity, here's how I'm filling the path. I
will try to work with what you posted. Thanks.
- (void) appendPoint:(NSPoint) point
{
if (firstPoint) {
[pointsPath moveToPoin
On 02/12/2009, at 3:03 PM, Shane wrote:
> Still trying to make this work right using
> transformUsingAffineTransform. If I add in translateXBy or scaleXBy,
> my wave (pointsPath) show up all wrong, not translated or scaled, but
> if I comment them out (as is below), my wave appears just fine, it'
Still trying to make this work right using
transformUsingAffineTransform. If I add in translateXBy or scaleXBy,
my wave (pointsPath) show up all wrong, not translated or scaled, but
if I comment them out (as is below), my wave appears just fine, it's
just not scaled. Am I not using them correctly?
On 01/12/2009, at 3:21 PM, Shane wrote:
> I'm trying to keep the stroke path
> the same size, even thought I resize and scale the entire NSBezierPath
> to the view size. Having a little trouble figuring out how to do this.
Instead of concatenating your transform to the current graphics context,
Just adding the other methods for clarification.
- (void) drawAxes:(NSRect) rect
{
NSRect bounds = [self bounds];
NSBezierPath *path = [NSBezierPath bezierPath];
[path moveToPoint:NSMakePoint(0.1, 0.0)];
[path lineToPoint:NSMakePoint((bound
> But the order of operations you apply to the transform is the reverse of what
> you might think will happen. One way to simplify the maths slightly is to
> generate the graph path using a fixed reference bounds of 1 x 1, located at
> the origin. Then you can directly use your view's size and p
On 01/12/2009, at 12:55 PM, Shane wrote:
> I'm drawing a graphing line, looks like a wave within an NSView. The
> line looks fine, except that it's not scaled to the size of the
> window. So my problem is trying to figure out how to scale it to the
> window size and every time that the window is
On Mon, Nov 30, 2009 at 7:55 PM, Shane
wrote:
> Anyone see what I'm doing wrong here, or know how to get the
> NSBezierPath to take up 90% of my NSView (leaving 10% blank for
> borders which is what I tried to do below)?
You call concat before you apply the scale. Do the translate, scale,
and the
Hey all,
I'm drawing a graphing line, looks like a wave within an NSView. The
line looks fine, except that it's not scaled to the size of the
window. So my problem is trying to figure out how to scale it to the
window size and every time that the window is resized.
I currently have something like
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