Re: About Ink drawing with wacom tablet
Re: About Ink drawing with wacom tablet
- Subject: Re: About Ink drawing with wacom tablet
- From: "john chen" <email@hidden>
- Date: Mon, 3 Nov 2008 16:04:40 -0600
Kevin,
Do you mean to implement the - (void)tabletPoint:(NSEvent *)theEvent in my
imageView class and construct the path from the points ? I will give it a
shot, thanks!
John
On Mon, Nov 3, 2008 at 4:01 PM, Kevin Gessner <email@hidden>wrote:
> If you use NSEvent to get a tablet event, the absoluteX, absoluteY, and
> absoluteZ will give you position information. I believe that it will be
> independent of the image view coordinates. You could construct a path from
> that, and even include the pressure and rotation information as well (though
> maybe not directly into NSBezierPath).
>
> HTH,
> -- Kevin
>
> Kevin Gessner
> http://www.kevingessner.com
> email@hidden
>
>
>
>
>
> On Nov 3, 2008, at 4:54 PM, john chen wrote:
>
> Hi all,
>>
>>
>> I am working on to implement a signature feature in a cocoa application. I
>> have an NSImageView, and the goal is for user to sign their names using
>> wacom tablet and the signature would be drawn on the NSImageView. I was
>> wondering if there is an API (from Ink, or wacom ...) that once user is
>> done
>> drawing on the tablet, I can call the API to get a NSImage, or
>> a NSBezierPath so I can draw directly onto the NSImageView ?
>>
>>
>>
>> I saw there is post on cocoa-dev list,
>> http://www.cocoabuilder.com/archive/message/cocoa/2006/1/26/155365, but I
>> haven't figured out how to do it in my cocoa application.
>>
>>
>> At this point, since I haven't figure out how to get the information from
>> ink, I treated the pen as mouse and checking mouseDown event to draw
>> a NSBezierPath, which doesn't work well when the pen is outside the
>> NSImageView.
>>
>>
>>
>> Thanks , I appreciate any help!
>>
>>
>> John
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