Add WS.barcode(callback, formats)

[wearscript]

Add WS.barcode(callback, formats)

[bwhite]

Good idea : D I'll review this a bit later and get it merged in.

On Sat, Nov 23, 2013 at 12:31 PM, Cole Gleason [email protected]:

zxing allows us to scan many different kinds of 1D and 2D barcodes. Let's
open that up to people and make WS.QR(callback) an alias such as WS.barcode(callback,
["QR_CODE"])

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[lnanek]

In my experience, the only thing ZXing can decode on Glass is a QR code. The camera doesn't support focus and ZXing isn't written well enough to handle blurry 1D bar codes. I have had better luck with the Scandit library, although that had to be decompiled and a setPreviewFpsRange call added to get it to work on Glass. So might be kind of pointless to add support for anything other than QR at this point since the hardware and software just isn't there.

[bwhite]

Thanks for the heads up Lance!

On Mon, Nov 25, 2013 at 11:34 AM, Lance Nanek [email protected]:

In my experience, the only thing ZXing can decode on Glass is a QR code.
The camera doesn't support focus and ZXing isn't written well enough to
handle blurry 1D bar codes. I have had better luck with the Scandit
library, although that had to be decompiled and a setPreviewFpsRange call
added to get it to work on Glass. So might be kind of pointless to add
support for anything other than QR at this point since the hardware and
software just isn't there.

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[kurtisnelson]

What do we need the format string for? I thought ZXing and such scan whatever they can recognize.

[colegleason]

You might want to specify that you only want to scan for certain formats so
the camera doesn't catch a stray code of the wrong format in the camera's
view.

On Wed, Nov 27, 2013 at 9:01 PM, Kurt Nelson [email protected]:

What do we need the format string for? I thought ZXing and such scan
whatever they can recognize.

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Cole Gleason
Student, University of Illinois at Urbana-Champaign
Computer Science, Class of 2015
[email protected] | colegleason.com

[kurtisnelson]

I think that might be overengineering the API, I've never had that issue before.

[lnanek]

It does noticeably speed up the scan on other libraries. Not sure about ZXing. Other libraries definitely have that problem as well, though. You can find partial bar codes in other bar codes, etc..

[kurtisnelson]

Once #94 happens, this will be a matter of updating the docs.