In this case, in our opinion, the seats rise up in three mutually perpendicular directions, and it will need special, more complex than in the first case, the approach to the representation of an image on a paper both physical. To do this, first, you must prepare the three-dimensional space, imagine the paper, IP does not end its two-dimensionality, but the plane of the paper is only the beginning, forward limit of visual depth, which must be mentally placed three-dimensional image, similar to a flat surface of the water, which is its depth.
Lack of awareness of the visual properties of MS is usually a major obstacle to the construction of a bulk form.
So far, no IP set up a third measurement, depth imaginary, while SP is understood that only the two-dimensional plane, drawing course, it spreads by two-dimensional visual preserving their actual angular values and scaling relations and transform any plane from the imagination of an angle to the surface of the paper (on the photo), it can not because of a lack of imagination third dimension - depth. On the contrary, even the perception of paper as a two-dimensional form of the organization is certainly the perception of three-dimensional object like an airplane just because two dimensions can be directly put on a plane and is associated with the IP as plane.
And regarding the relationship between explicit visual material (paper, pencil, paint, clay, paper, scissors, glue, etc.) and the perception of it can be said that in this case determines the perception of graphic material .
Indeed, if we hand in clay, wax, snow or other plastic material, in short, given the physical three-dimensional object - mass natural material shown, for example, a mass cubic. But if our
disposal of cardboard (two-dimensionality, surface), scissors, glue, a natural perception of the same shape of a cube, as shown in the object, it is the perception of the surface in the form of six square. Thus, for example, tin-turner and is likely on the same subject from a professional point of view quite different spatial concepts: the first, for example, is the volume of a cylinder, and second - the surface.
The issue of visual spatiality of paper that the primary IP address of our method, and no positive solutions, it can not begin to draw.