Regarding Drawlines

Hi. Im new to vvvv and are trying to learn. Right now im looking at the all the tutorials and browsing the site tying to comprhend all of this new information.
The question:How can I get rid of the “Demo lines/draws” in the Drawlines Patch?

I wanted to make a line drawn around an object for projection mapping.
So I started out thinking some thing like this attached file.
It is probably over complex, but it should work for a 2d image.
But when wanting to draw more complex i looked at DRAWLINES wich i cant say i fully understand ;)

linetest1.rar (4.2 kB)

I think i am doing it the hard way : )

Linestest3d.rar (2.6 kB)