Activity for DataMatrix.net

Shlomo Reches posted a comment on discussion Help

Shlomo Reches — Thu, 13 Jul 2023 06:53:28 -0000

Hi, I would like to create a string with TAB, say AAA + TAB + BBB. I tried the following without any success: AAA~009BBB AAA~~009BBB AAA<009>BBB AAA~d009BBB AAA$IBBB AAA($)IBBB AAA\011BBB AAA\tBBB For ~009 the DmtxScheme/s I tried are the following but nothing worked for me: DmtxSchemeX12, DmtxSchemeBase256, DmtxSchemeC40, DmtxSchemeAscii, DmtxSchemeText Thank you.

Tony Khorouzan posted a comment on ticket #5

Tony Khorouzan — Mon, 31 Oct 2022 16:03:42 -0000

Further analysis: The original libdmtx library is correct and the code in datamatrix.net is incorrect. The code should check for the 0x80 (visited) bit. The visited flag is set in TrailBlazeContinuous (via MatrixRegionSeekEdge), TrailBlazeGapped (MatrixRegionOrientation), or when successfully decoding a found barcode (MatrixRegion call into CacheFillQuad). It is cleared in TrailBlazeContinuous. If no regions/barcodes are found, this test will never be true as the visited bit is reset by TrailClear....

Tony Khorouzan modified a comment on discussion Open Discussion

Tony Khorouzan — Tue, 27 Sep 2022 16:42:21 -0000

The RowPadBytes calculation was not correct (either before or after my change above). The below addresses the issue: // For efficiency, the system ensures that the data is packed into rows that begin on a four byte boundary // -- this means they are padded out to a multiple of four bytes. The stride includes the pad bytes. int padBytes = (stride - (dmtxImg.Width * dmtxImg.BytesPerPixel)); // The current RowSizeBytes was calculated off the data bytes and does not include any pad bytes, but it should....

Tony Khorouzan posted a comment on discussion Open Discussion

Tony Khorouzan — Tue, 27 Sep 2022 16:40:31 -0000

The RowPadBytes calculation was not correct (either before or after my change above). The below addresses the issue: // For efficiency, the system ensures that the data is packed into rows that begin on a four byte boundary // -- this means they are padded out to a multiple of four bytes. The stride includes the pad bytes. int padBytes = (stride - (dataMatrixImg.Width * dataMatrixImg.BytesPerPixel)); // The current RowSizeBytes was calculated off the data bytes and does not include any pad bytes,...

Tony Khorouzan posted a comment on discussion Open Discussion

Tony Khorouzan — Mon, 26 Sep 2022 22:37:01 -0000

The Image Decoder assumes images are 24 bpp. This is normally fine, as the project test code (DataMatrixTest\Program.cs) creates images with this Pixel Format. (Specifically: The image is provided to DecodeImage(). Testing will typically result in using EncodeImage which calls DmtxImageEncoder's CopyDataToBitmap which creates the image as PixelFormat.Format24bppRgb.) Otherwise, it skews the image each line. Barcodes will be found, as the detection is tolerant of minor skews, but the calculated region...

Tony Khorouzan modified a comment on a wiki page

Tony Khorouzan — Thu, 15 Sep 2022 15:52:53 -0000

Tony Khorouzan posted a comment on a wiki page

Tony Khorouzan — Thu, 15 Sep 2022 15:51:48 -0000

Sorry about a duplicate (previous) posting in "Support/Issues". I am now thinking that this is a better forum for discussion. The posting in "Support/Issues" should probably be removed. In DmtxDecode, in method RegionScanPixel, at line 691: int cacheIndex = this.DecodeGetCache(loc.X, loc.Y); if (cacheIndex == -1) return null; if (this._cache[cacheIndex] != 0x00) return null; is checking to see if any flag is set. This is inconsistent with the code in GetStrongestNeighbor, at line 789: int cacheIndex...

Tony Khorouzan posted a comment on ticket #5

Tony Khorouzan — Thu, 15 Sep 2022 15:21:51 -0000

I am noticing that the current test if (this._cache[cacheIndex] != 0x00) instead of if ((this._cache[cacheIndex] & 0x80) != 0x00) runs 60 times faster. It is so slow using the original libdmtx that it makes me speculative it may be a intentional optimization: any value indicates a "visited" aspect, if not a full "visited", and it is appropriate to skip the grid location without testing it further.

Tony Khorouzan created ticket #5

Tony Khorouzan — Mon, 12 Sep 2022 22:55:08 -0000

RegionScanPixel appears to have incorrect cacheIndex test

Kevin Albrecht modified a comment on discussion Help

Kevin Albrecht — Wed, 18 May 2022 20:04:36 -0000

Hey Nebuk, I know this is quite an old post & I am sure you have moved on, but I was able to decode these successfully myself & wanted to show my slightly different code. I believe you may have been missing the .ToArray() when assigning the value to (in my case) the datas() array: If strName = "" Then Dim dm As Bitmap = New Bitmap(InFile) Dim decoder As New DataMatrix.net.DmtxImageDecoder datas = decoder.DecodeImage(dm).ToArray() For Each d As String In datas If d.Trim().Length > 16 Then strName...

Kevin Albrecht posted a comment on discussion Help

Kevin Albrecht — Wed, 18 May 2022 20:04:04 -0000

Hey Nebuk, I know this is quite an old post & I am sure you have moved on, but I was able to decond these successfully myself & wanted to show my slightly different code. I believe you may have been missing the .ToArray() when assigning the value to (in my case) the datas() array: If strName = "" Then Dim dm As Bitmap = New Bitmap(InFile) Dim decoder As New DataMatrix.net.DmtxImageDecoder datas = decoder.DecodeImage(dm).ToArray() For Each d As String In datas If d.Trim().Length > 16 Then strName...

hao9862 posted a comment on discussion Open Discussion

hao9862 — Sun, 24 Apr 2022 12:08:33 -0000

I am testing in the C#. Using options.Scheme = DmtxScheme.DmtxSchemeAutoFast and options.Scheme = DmtxScheme.DmtxSchemeAutoBest cannot working. the error message "System.NullReferaceException:" 'Object reference not set to an instance of an object' . do you have any ideas? Thanks!

James Greene posted a comment on discussion Help

James Greene — Wed, 16 Feb 2022 17:46:04 -0000

Do you have software that will read Direct Part Marking (DPM) code? They are made up of dots.

Jan Boettcher posted a comment on discussion Help

Jan Boettcher — Tue, 25 Jan 2022 10:48:53 -0000

If a given text can not be encoded with the given options DmtxImageEncoder.EncodeImage fails with an exception. Is there a way to check if its encodeable without catching that exception? Regards, Jan

RUBEN ALEJANDRO BIGNU posted a comment on discussion Open Discussion

RUBEN ALEJANDRO BIGNU — Fri, 31 Dec 2021 11:26:44 -0000

Hello Heidi, nice to meet you. Did you find out how to generate a GS1 Datamatrix? If you did, please let me know how. Thank you very muc in advance. Ruben

Hannu Korhonen posted a comment on ticket #4

Hannu Korhonen — Wed, 15 Jan 2020 10:14:47 -0000

Hi, is this MIT license issue progressing at the moment? If not, we are not able to use this nice lib in our software...

Stefan Reichl created ticket #5

Stefan Reichl — Wed, 20 Mar 2019 11:02:14 -0000

Make Datamatrix Code using ISO-8859

Michael Faschinger posted a comment on ticket #4

Michael Faschinger — Mon, 11 Mar 2019 22:10:48 -0000

Yes, it is - I am sorry, I will add the MIT license with the next release. Be careful with iTextSharp though (which is part of the bintools-package). iTextSharp is released under AGPL, which is more restrictive than MIT license.

Markus Jünemann created ticket #4

Markus Jünemann — Mon, 11 Mar 2019 15:01:40 -0000

MIT License?

Stefan Reichl posted a comment on discussion Help

Stefan Reichl — Fri, 22 Feb 2019 13:19:16 -0000

Hi there, I try to create Datamatrix with german umlaute within ( i.e. ÄäÖöÜüß) How can i do this? Regards Stefan

Murat YILDIZ created ticket #4

Murat YILDIZ — Wed, 23 May 2018 11:10:44 -0000

Bug in "InsertPaddingBytes" function

Michael Faschinger committed [r37]

Michael Faschinger — Sat, 06 Jan 2018 22:52:23 -0000

add specific changes for beck

Michael Faschinger committed [r36]

Michael Faschinger — Sat, 06 Jan 2018 22:51:30 -0000

MEhul posted a comment on discussion Help

MEhul — Thu, 17 Aug 2017 00:50:12 -0000

how do i get DmtxImageEncoderOptions of property name FNC1?

MEhul posted a comment on discussion Help

MEhul — Mon, 14 Aug 2017 07:17:33 -0000

If DataMatrix.net does support GS1 DataMatrix format then please anyone help me. send me dll link also send me some example so i can review and implement that. my string is look like (01)09103910390193019310 after using GS1 when i will scan then output will come without bracket. 0109103910390193019310

Jochen posted a comment on discussion Help

Jochen — Wed, 02 Aug 2017 15:12:06 -0000

I found out, that the Android-App i-nigma makes it right and choses the right encoding. Others, like "Barcode Scanner" don't. It could be a bug in those apps, so I still need to know if datamatrix.net makes it right and sets the ECI-Header.

Jochen posted a comment on discussion Help

Jochen — Wed, 02 Aug 2017 11:55:01 -0000

Hi, I'm not sure about one thing. I don't get the datamatrix barcode with UTF-8 encoded text and special characters to work. The special characters are availiable in UTF-8 but seem to become misinterpreted. I updated to version 0.4.4 but still get the same behaviour. Am I right, that the ECI-Header is not set corresponding to the encoding, when the barcode is created? How can I make sure the barcode reader uses the right encoding to read the data (ISO-8859-1 would be okay too)? Even when I create...

Michael Faschinger posted a comment on ticket #2

Michael Faschinger — Thu, 02 Mar 2017 08:00:05 -0000

Since SilverLight is more or less dead, I won't fix this...

Michael Faschinger modified ticket #2

Michael Faschinger — Thu, 02 Mar 2017 08:00:05 -0000

Support for SilverLight

DataMatrix.net released /rel0.4/rel0.4.4/DataMatrixNet-src-0.4.4.zip

DataMatrix.net — Tue, 28 Feb 2017 20:46:03 -0000

DataMatrix.net released /rel0.4/rel0.4.4/DataMatrixNet-bin-0.4.4.zip

DataMatrix.net — Tue, 28 Feb 2017 20:46:03 -0000

DataMatrix.net released /rel0.4/rel0.4.4/DataMatrixNet-bintools-0.4.4.zip

DataMatrix.net — Tue, 28 Feb 2017 20:46:03 -0000

Michael Faschinger committed [r35]

Michael Faschinger — Tue, 28 Feb 2017 20:41:15 -0000

FIX error parsing colors passed to EncodeDataMa...

Michael Faschinger committed [r34]

Michael Faschinger — Tue, 28 Feb 2017 06:06:32 -0000

FIX error parsing colors passed to EncodeDataMa...

Heidi Alford posted a comment on discussion Open Discussion

Heidi Alford — Thu, 02 Feb 2017 13:01:27 -0000

Well, it's probably a little late to help you, but for future reference the following...

Farhad Rastegarpanah posted a comment on discussion Open Discussion

Farhad Rastegarpanah — Thu, 06 Aug 2015 14:52:32 -0000

There is a problem for Extended ASCII Codes number after 127. Encoding.GetBytes(string)...

leonard de lanerole posted a comment on discussion Open Discussion

leonard de lanerole — Tue, 02 Jun 2015 12:18:12 -0000

Hi Guys, I have spent hours to find out about how to write my first 2 barcode for...

Michael Faschinger committed [r33]

Michael Faschinger — Tue, 24 Mar 2015 21:58:50 -0000

CHG: end support for .net-cf-version

Michael Faschinger committed [r32]

Michael Faschinger — Tue, 24 Mar 2015 21:54:26 -0000

CHG: end support for .net-cf-version

Michael Faschinger committed [r31]

Michael Faschinger — Tue, 24 Mar 2015 21:53:28 -0000

FEATURE: add character encoding to encoder options

Michael Faschinger committed [r30]

Michael Faschinger — Tue, 24 Mar 2015 21:52:38 -0000

FIX: minor fix, improves performance of decoder...

DataMatrix.net released /rel0.4/rel0.4.3/DataMatrixNet-src-0.4.3.zip

DataMatrix.net — Tue, 24 Mar 2015 21:51:03 -0000

DataMatrix.net released /rel0.4/rel0.4.3/DataMatrixNet-bin-0.4.3.zip

DataMatrix.net — Tue, 24 Mar 2015 21:51:03 -0000

DataMatrix.net released /rel0.4/rel0.4.3/DataMatrixNet-bintools-0.4.3.zip

DataMatrix.net — Tue, 24 Mar 2015 21:51:03 -0000

Michael Faschinger posted a comment on discussion Open Discussion

Michael Faschinger — Tue, 24 Mar 2015 21:47:51 -0000

Now he did :). I didn't see the post until now.

Michael Faschinger posted a comment on discussion Open Discussion

Michael Faschinger — Tue, 24 Mar 2015 21:46:53 -0000

I am not a license expert, but my intention is that anyone can use the library at...

Nicolas posted a comment on discussion Open Discussion

Nicolas — Mon, 23 Mar 2015 12:07:57 -0000

Did you get an answer?

Nebuk posted a comment on discussion Help

Nebuk — Fri, 22 Aug 2014 11:52:25 -0000

The Form for the Code:

Nebuk posted a comment on discussion Help

Nebuk — Fri, 22 Aug 2014 11:46:06 -0000

Hello, i write a small application for encode and it work wonderfull. But if i want...

Holger2012 posted a comment on discussion Help

Holger2012 — Tue, 05 Aug 2014 09:15:31 -0000

Hi, first of all thank you for the great work. But is it possible to create reader...

Vanessa Liang posted a comment on discussion Open Discussion

Vanessa Liang — Wed, 23 Jul 2014 21:25:17 -0000

We have recently developed a tab-delimited datamatrix barcode. When we scan the barcode...

wn7777 posted a comment on discussion Help

wn7777 — Thu, 15 May 2014 20:34:14 -0000

Can you show some sample code in C# of setting the decode symbol size? Thanks, B...

Anthony posted a comment on discussion Open Discussion

Anthony — Tue, 29 Apr 2014 07:42:09 -0000

Hi, Very nice library. I want to use it but I need to clarify the licensing position....

Martin Pischky posted a comment on ticket #1

Martin Pischky — Sat, 25 Jan 2014 23:07:47 -0000

It is DecodeSchemeAscii() not DecodeAscii() right? This should only be done when...

Martin Pischky created ticket #3

Martin Pischky — Sat, 25 Jan 2014 22:38:42 -0000

FNC1 in GS1 Datamatrix

Martin Pischky posted a comment on ticket #2

Martin Pischky — Sat, 25 Jan 2014 22:30:56 -0000

Note: "]d2" is AIM identifier for gs1 datamatrix (datamatrix startion with FNC1)....