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Aztec doesn’t support symbols that are all binary


Hi,

When trying to encode the values 0x00:0xFF via Aztec Forms Control using the following code …

Bitmap outputImage;
using (var barcode = new AztecBarcode (true))
{
barcode.DoPaint = false;
barcode.DataToEncode = new string(Enumerable.Range (0,256).Select (integer => (char)integer).ToArray ());

barcode.Resolution = AztecBarcode.Resolutions.Custom;
barcode.ApplyTilde = false;

barcode.DoPaint = true;
outputImage = (Bitmap)barcode.BMPPicture.Clone ();
}

…we get a barcode with different modes (Byte and Text-Modes mixed):

image

This barcode consists of different modes:

binary: 0x00
text: from 0x01 to 0x0d
binary from 0E to 1A
text: from 0x1B to 0x7A
binary from 7B to FF

What we would want to achieve is a symbol that has only byte encoding mode. This can be achieved for the given data, as can be seen in this barcode:

image

where the data is all binary from 0x00 to 0xFF (except for the leading "demo" string

kind regards,
Roman Brandstetter


04-03-12     12.4 year(s) ago    

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Tim

Best Answer

Roman,

The source code was based on the source provided by HHP, who created the Aztec symbol. This code switches between encoding modes to produce the most efficient symbol possible.

I ran some tests on the "*DEMO*" barcode provided and created one with our control. Here is a snippet of what I did to set the data to encode property so I could match the same data as the sample.
string byteData = "";
for(int i = 0; i < 256; i++)
{
byteData += (char)i;
}
aztecBarcode.DataToEncode = "*DEMO*" + byteData;

I scanned both with print quality assessment which gives the number of modules of the scanned symbol in the output. While both barcodes scanned with the same data, the sample barcode has 61x61 modules, and our control produces a 57x57 module symbol.

This is by design, if you would like to edit the source by only doing byte encoding, I suggest editing the BestPattern method which makes several calls to the Member method which makes these decisions on when to switch encoding modes.

Posted 12.4 year(s) ago

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Other Answers (3)
In this example, I wanted to encode all possible byte values (0x00,0x01,0x02 ... 0xFF)
The generated barcode should be an all-binary barcode not containing any codewords in text mode.

kind regards,
Roman Brandstetter

Posted 12.4 year(s) ago

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What is the complete data that you are attempting to encode?

Posted 12.4 year(s) ago

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The question is under review: Sent message through email.

Posted 12.4 year(s) ago

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