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.
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