What do you call this thing I mean theses lines that helps drawing or this way to draw with??..
(sorry for my bad english)
I think that you are referring to linear perspective drawing: diagonal, parallel lines, angles, planes and vanishing points. There is a website online where you will see a short description about this. If you "google" Perspective Drawing, I am sure that you will get a lot more information on this. Here is the one link & a "youtubelink":
Hope this helps
Margs Haslewood was born in Johannesburg, South Africa and spent most of the time doing things that I had to do. In 1998 I moved to Cape Town and started painting and sculpture 5 years ago.
Margs is correct. This is a diagram explaining some of the principles of linear perspective. In this case we are looking at one point perspective.
The horizontal line running across the drawing is the horizon line. This is the eye level from which you are viewing the scene. The "V" on the horizon line is the vanishing point. In one point perspective we are viewing things from the middle area of a "pathway" that recedes to a single vanishing point on the horizon.
Thanks so much Margs and the links where so helpful!!.
Thanks Paul for the informations!.