rolling string display

[arvi]

hello.. guys here in my vi my aim is to create rolling sting display. i hav dne all the wrk but prblm here comes is i am unable to adjust the truth table in vi.....so plzzz any can tell me hw do i adjust my truth table..if possible try to give me a sloutin in another vi... n here i am attaching my code plz verify the code n solve the prblm

[ramses64]

hi,
first step : convert your string to boolean array. The easyest way is to create a 3D array with the coded letters. Then concatene 2D arrays corresponding to the string written to generate the string with booleans.

Second step : delete the first column, and place it to the end each 200ms : this will do a rolling string display...
I hope this will help you to find your solution.

best regards,

[ramses64 · Accepted solution]

This is a easy method to convert your string to an array of bool.
I coded a,b,c,d, letters (so write abcdcba in input !)

[Thoric]

There is already a rolling character display somewhere on the forums, try searching for it. It includes a block diagram array of character maps in boolean form.

[Thoric]

https://decibel.ni.com/content/docs/DOC-1180

[ben64]

Alternative way is to convert the text to an image using the Draw Text at Point.vi and then use the Picture to Pixmap.vi to get the pixel information which will be converted to a 2D boolean array. This way you can easily change the font parameters. See attached.

Ben64

[arvi]

hi buddy thanks for providing the code but i am unable to get the correct output.so if u can provide any material (such as any doc file which gives info about the code) of ur program it would be a great help for to proceed further in my work...:-)

[Dennis_Knutson]

You marked your question as solved 6 months ago and you are now saying something does not work. You are not precise in describing what is exactly is incorrect or what code you mean.

And please, no ' text' speech. It is you and your and not u and ur.

[arvi]

yes.... previously i have accepted the solution.but now when i thought of using that for my further work i find that there is problem and i could not find where the problem is.so if you send me any doc file or any format or text file. i will be able to recreate the program which would be great help for me.

[Dennis_Knutson]

You still have not described the problem or the code you are referring to.

There is a lot of documentation available on LabVIEW including several tutorials. Do a search.