How to use list of x,z positions in .txt file, and translate into marked positions on screen?

joanne55

Hello! This is my first attempt at using processing, so I'm sorry if my question is basic. I am using mouse tracking for two people to communicate secretly. In short, person A and B have the same text document, and A wants to send a message to B, so A uses processing to track the mouse's position over words one after the other to create the secret message, and those x,y positions per word are saved on a .txt. file, which is then sent to B. I already did this part, but struggling with part two: How to then read those x,y values from a .txt on processing, and showcase the position (with a dot or ellipse, whatever) on the screen every time B clicks on 'space' for example, to go from one word to another (to decrypt the message)?

I hope this is clear enough, and thanks in advance!

GoToLoop

W/o posting your attempt, it's virtually impossible for us to give any help! [-(
Plus, we dunno how those pair coordinates are stored in your ".txt" file.
Is it compatible w/ ".csv", w/ those 2 coords. separated by commas. and each of them in separate lines?
Or are they separated by tabs or spaces? Are they all in the same line or some other exotic arrangement? :-??

If it's ".csv" or ".tsv", you can rely on Processing's data structure Table:
https://processing.org/reference/loadTable_.html

Otherwise, rely on loadStrings(), plus split() or splitTokens() in order to separate the values of each line:

• https://processing.org/reference/loadStrings_.html
• https://processing.org/reference/split_.html
• https://processing.org/reference/splitTokens_.html

Search this forum for examples about it. There are a lot of them! #:-S