Hi everyone, I am building a photodiode based screen ( electronic white board) that trasmits position information of light source ( a laser pencil for example) to a patch in puredata. I want to draw waveforms vía the e-board but i need to do it from these position data numbers that i get. Any patch that would help me ? or a tip for programming this?...

thanks!

Use the x-position as an index in a table and the Y as the value. Then, normalize the table.