How to draw order 3d shapes relative to a view point?

[Guest]

Given array of points sets with numbers that are defined, finite, real, and points are not all collinear in each shape, there are multiple shapes, how to order things by which is closer to a view point at where these shapes intersect in a 2d view plane? Can someone at least get me started? Painter's algorithm basically, but for intercepts on a 2d view plane with a 3d space, can you connect with me, maybejosiah@aol.com if you can help?