I'm not too clear on what you are wanting to do. The Draw Line.vi allows you to set relative coordinates if that is what you are asking. There is a boolean input which lets you set whether or not you are setting absolute coordinates. If set to false, it will use relative coordinates.
Hello,JRA thanks for your help,I am working in a project to simulate a embroidery machine and yes, the draw line.vi allows me to use relative coordinates but I need to draw multiple lines like 5,000 or more, rigth now I switch to XY graph because the data has negative coordinates and is easy to use a XY graph, but I Still have the same problem to draw relative coordinates.