I was reading about barcodes, just a general query I came up with:
Does the length of barcode image change because of the text in it?
For eg: will the length of a barcode with 986262 be different than 111111?
Generally speaking, you can consider barcodes "monospaced". The only cases for which this isn't true are when a character needs an escape code to be represented.
For example in Code 128B, you need to escape to Code 128A to issue a control character like TAB, or in Code 128A you need to switch temporarily to Code 128B to embed a lowercase alphabetical character.
Related
I have to print data from DATA_FIELD that can contain between 5 to 50 characters
and label can fit just 20 letters
due i have right to left spelling words i have to print always top 20 letters from right other wise ill loose 1st words of customer name and its usually most important because contains name of the customer
for example i have a code
^FO40,240^A#N,40,40,E:DAVIDBD.FNT
^FD%%Depositor%%
^FS
thats depositor name is:
i dont know why its so long name -- can be variable
and i have to print always last 20 letters as:
its so long name --can be variable
will be happy to get any tips or help
Regards
There really isn't much ZPL can do to help. ZPL is really a page description language, not a programming language.
You will need to process the string to the correct length before adding it to your label code. If you are not using a mono spaced font, then you will have to accommodate for the variable character width.
If you are using a monospaced font you simply have to know how many characters will fit in the area you are trying to print.
If you can wrap text, you might make use of the Use the ^FB – Field Block command in the manual
QR codes are great for printing machine readable URLs if you have a square space. But they look horrible if placed in a text as they are much taller than a line of text.
Is there a way I can have a 1d-barcode with the same functionality as QR code (URL being the most important feature) so it can be put as text in a normal paragraph without special formatting?
If yes: How do I generate those barcodes?
There're different barcode symbologies that can encode text. The main problem is how much text you want to encode and which apps are you going to use to decode the barcode.
If you're using an URL shortener and you want to stick to a 1D barcode, CODE128 is probably the best choice.
Another option could be a PDF417, it's a 2D barcode but is not square like QRCode. In this case you can encode more chars in less space and this symbology is supported by iOS and the major Barcodes library.
I'm not expert in Delphi and I'm trying to add "Extended ASCII String" broken into individual character and then add into the TSgringGrid.Cells[x,y]. Some of the characters are getting displayed but rest of the characters are not shown in these cells. Another way for me is to convert these characters in Hex-Mode and then show it but this is not Required.
ChartSet used was OEM_CHARSET and Font = Terminal. I simply wish to display all 255 characters in Cell. Basically I wanted to created the Binary Editor like Edit.com in Delphi/ Lazarus which is available in XP.
I used AnsiToUtf8(chr(i)) and it was solved.
Windows use uniscribe library to substitute arabic and indi typed characters based on their location. The new glyph is still have the original unicode of the typed character althogh it has its dedicated representation in Unicode
How to get the Unicode of what is actually displayed not what is typed.
There are lots of tools for this like ICU, Charmap and the rest. I myself recommand http://unicode.codeplex.com, it uses Unicode Character Database to represent characters.
Note that unicode is just some information about characters and never spoke about representation. They just suggest to implement a word just like their example. so that to view each code you need Standard Unicode Font like MS Arial Unicode whichis the largest and the best choise in windows platform.
Most of the characters are implemented in this font but for new characters you need an update for it (if there are such an update) or you can use the font which you know that it implemented your desire characters
Your interpretation of what is happening in Uniscribe is not correct.
Once you have glyphs the original information is gone there is no reliable way to go back to Unicode.
Even without going to Arabic, there is no way to distinguish if the glyph for the fi ligature (for example) comes from 'f' and 'i' (U+0066 U+0069) or from 'fi' (U+FB01).
(http://www.fileformat.info/info/unicode/char/fb01/index.htm)
Also, some of the resulting glyphs do not have a Unicode value associated with them, so there is no "Unicode of what is actually displayed"
I am able to display chinese character correctly but when I try to display arabic string the output that display in OpenGL scene is different from the arabic string that display in Visual Studio Editor. I know it should be something to do with "Complex Script" but I am not able to find any good example regarding to this matter. I would like to know how to display arabic text correctly?
Unlike Latin characters which each have a single visual representation, each Arabic character can have many different appearances depending on the surrounding characters. The logical characters in an Arabic string need to be converted to a sequence of visual glyphs in order to be correctly displayed. OpenGL doesn't do this processing for you so you're seeing the logical characters rendered without this processing.
To get around this you will need to use a library such as Uniscribe to transform the logical string into a visual string which you then give to OpenGL for rendering. There are some samples here.