In axonometric projection geometry called one way display objects.
To construct a perspective view of first need to build the axis, and then taking into account the distortion factor of the axes laid size of the projected object and its elements.
By combining the received items, get a perspective view.
Let the task of building a perspective view of a body of revolution.
First we need to relate the body with a rectangular coordinate system, in this case as one of the axes for convenience should take account of the body axis of rotation.
Further features of the second subject of the orthogonal projection.
Now you need to construct axonometricaxis positioning they need to provide greater visibility of the surface of the object, to simplify the build can take a rectangular coordinate axis isometric view, in this case, the axes distortion coefficients can be considered equal to 1.
Elements of the figures are projected along axonometric axes in a ratio 1: 1.
For clarity of presentation perspective view, cut-out made him the nearest quarter, followed by hatching.