34. The position of a point in the space of a three-dimensional angle

The location of the projections of points on the complex drawing depends on the position of the point in the space of the three-dimensional angle. Consider some cases:

• the point is located in space (see fig. 62). In this case, it has depth, height, and latitude;
• the point is located on the plane of the projections P ₁ - it has no height, P ₂ - does not have depth, Pz - does not have latitude;
• the point is located on the axis of the projections, P ₂ / P ₁ has no depth and height, P ₂ / P ₃ - does not have depth and latitude, and P ₁ / P ₃ does not have height and latitude.