Jacques, I think it is something to do with the difference between reflected light and a light source. A scanner works by emitting light and seeing what is reflected back. If the barcode is a light source then the scanner is going to see too much, so to speak.
A camera on the other hand is designed to record received light as it comes and therefore has a much better chance of recording the barcode which can then be processed by some software to get the data. It would appear that the web site that is promoting the new Tags is illustrating this with mobile phone cameras. So maybe we are about to enter a new era where we use camera technology to process barcodes and tags. This has interesting implications in the warehouse because we may soon be able to use a high-end mobile phone with a keyboard, wifi and a camera instead of a highly expensive state of the ark handheld terminal which is still using DOS. The argument that a mobile phone is not as robust as a ruggedized handheld no longer adds up because you can buy more than 10 mobile phones for the cost of one of these specialised handhelds. Kind regards, Andrew Ballantine. -----Original Message----- From: Jacques Le Roux [mailto:[EMAIL PROTECTED] Sent: 20 December 2006 22:52 To: [email protected] Subject: Re: GIF or PNG Products BarCodes I tested and yes my scanner is unable to read a barcode on screen. By curiosity, anybody has an idea why ? Do you think it's related to my scanner or to the screen ? Thanks Jacques ----- Original Message ----- From: "Jacques Le Roux" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, December 19, 2006 5:55 PM Subject: Re: GIF or PNG Products BarCodes > In France we have a saying : "Le client a toujours raison !" > I let you translate ;o) > > I'm not sure for not scanning on screen, will try with my poor man scanner (Zebex 80) and my beautiful 20" Dell Flat Screen :o) > > Jacques > > ----- Original Message ----- > From: "Andrew Ballantine" <[EMAIL PROTECTED]> > To: <[email protected]>; "Jacques Le Roux" <[EMAIL PROTECTED]> > Sent: Tuesday, December 19, 2006 3:27 PM > Subject: RE: GIF or PNG Products BarCodes > > > > Why on earth would anyone want to display barcodes on the screen, since the > > only purpose of a barcode is to provide machine readable data by scanning? I > > don't think a scanner will work scanning a screen. > > > > Or is there a new generation of computer user that can read barcodes without > > a scanner? ;-) > > > > Kind regards, > > > > Andrew Ballantine. > > > > > > -----Original Message----- > > From: Jacques Le Roux [mailto:[EMAIL PROTECTED] > > Sent: 18 December 2006 17:35 > > To: [email protected] > > Subject: Re: GIF or PNG Products BarCodes > > > > > > It may be useful sometime to have a *quick* generation of a barcode. > > For instance to make some test with the POS. But yes maybe current SVG stuff > > in an XSL:FO file is enough for such an use > > A prospective customer also asked for this. He even suggested to use a > > commercial tool before I explained that we were already using > > Barcode4j. > > It seemed that he wanted to show barcodes on screen hence the gif/png > > question. > > > > So I presume your response is : no ;o) > > > > Thanks David > > > > Jacques > > > > ----- Original Message ----- > > From: "David E Jones" <[EMAIL PROTECTED]> > > To: <[email protected]> > > Sent: Monday, December 18, 2006 6:06 PM > > Subject: Re: GIF or PNG Products BarCodes > > > > > > > > > > Why do you want images for the barcodes? Is this for something other > > > than a printed document, so the current SVG stuff in an XSL:FO file > > > won't work for you? > > > > > > -David > > > > > > > > > On Dec 18, 2006, at 6:56 AM, Jacques Le Roux wrote: > > > > > > > Hi all, > > > > > > > > I want to create a new functionnality to quickly produce GIF or PNG > > > > Products BarCodes images usgin Barcode4j. > > > > I want to add a new menu option that may be used after for more > > > > functionnalties from Catalog/Product . > > > > > > > > I know that Barcode4j is already used in PDF generation however I'm > > > > not aware of any use for gif/png generation on the fly in OFBiz. > > > > Is there alerady such functionnality somewhere hidden ? > > > > > > > > Actually this is a 1st step toward a tool (in Webtools certainly) > > > > to generate massive products barcodes for catalog(s) using such > > > > templates > > > > as in http://www.worldlabel.com/ (hoping to use http:// > > > > www.worldlabel.com/Pages/openoffice-template.htm not sure just a > > > > plan for > > > > now) > > > > > > > > Thanks > > > > > > > > Jacques > > > > > > > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.5.432 / Virus Database: 268.15.24/592 - Release Date: 18/12/2006 > > 13:45 > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.5.432 / Virus Database: 268.15.24/592 - Release Date: 18/12/2006 > > 13:45 > > > > -- > > No virus found in this outgoing message. > > Checked by AVG Free Edition. > > Version: 7.5.432 / Virus Database: 268.15.24/592 - Release Date: 18/12/2006 > > 13:45 > > > > > > > > ***************************************************************** > > This email has been checked by the altohiway Mailcontroller Service > > ***************************************************************** -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.15.26/594 - Release Date: 20/12/2006 15:54 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.15.26/594 - Release Date: 20/12/2006 15:54 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.15.26/594 - Release Date: 20/12/2006 15:54
