Graphcal view, x y coordinate system iwth vector based graphics
First i want to say, sorry for my english, ill hope you understand me what i need.
I want to create a coordinate system using Qt Creator program, where I could draw pictures with vector graphics. If you seen it used in laser show applications. The main thing that I need to draw a picture of dots and Connected Lines , then use dots Coordinates and send to the appropriate COM port. I already have working hardware part, but I have difficulty with QT programming, because I am a newbie here. I would ask for your help. I asking any information, links, videos, librarys, any help with this project would be good.