Re: Filling bezier path with the image
Re: Filling bezier path with the image
- Subject: Re: Filling bezier path with the image
- From: Vinay Prabhu <email@hidden>
- Date: Fri, 27 Jul 2007 08:57:47 +0530 (IST)
>> In the above code, the stroking of the bezier path works properly.
>> Stroke appears as I am intended.
>> I was expecting the image to be drawn inside the stroked region,
>> but the image is not drawn inside the path. Part of the image is
>> drawn outside the clipping region.
>>
>> I have even tried the NSAffineTransform's "concat" API, but the
>> result is same as above code!!!.
>> I am wondering. how stroke is working properly?
>>
>> Anything wrong in the above code?
>> Is there any easy way to draw NSImage in the clipping region of the
>> NSBezierPath?
>
> You're not clipping. -stroke and -fill just *draw* the *path*.
>Affine transforms just change the *shape*/*position* of the bezier
>path. All of that has nothing to do with clipping. You probably want
>to call [graphicsPath setClip] somewhere to apply it for clipping.
>You may also want to save the graphics state so you can restore the
>clip area to what it was afterwards. Check out NSGraphicsContext for
>that.
>
Thanks for pointing out that.
After clipping the path. Image is drawn inside the cliping region of the path. But the affine transform which I had applied to path is not applied to the image drawing.
i.e, path is rotated, but image is not rotated and drawn.
I got partial success, I have commented the code to scale X and Y for affinetransform. Then did the drawing like this,
[[NSColor redColor] set];
[path stroke];
[affineTransform concat];
[image drawAtPoint:NSZeroPoint fromRect:imageRect operation:NSCompositeSourceOver fraction:1];
This code works fine, i.e, image is also rotade along with the path. As soon as I scale the affine transform, Path stroking appears properly, but the image scales but the rotation is not applied properly.
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