1. An anaglyph on a surface of an object; said anaglyph depicting the position of the object relative to the surface; said anaglyph comprising:
- a left anaglyph image on the surface; said left anaglyph image having an added first color; said left anaglyph image equivalent to a ray map of the object on the surface from a left viewpoint on a left view axis which is not orthogonal to the surface; and
- a right anaglyph image on the surface; said right anaglyph image having an added contrasting color; said right anaglyph image equivalent to a ray map of the object on the surface from a right viewpoint on a right view axis which is not orthogonal to the surface.
2. An anaglyph on a surface of an object; the surface having an associated plane; said anaglyph comprising:
- a left anaglyph image of the object on the surface; said left anaglyph image having an added first color; and
- a right anaglyph image of the object on the surface; said right anaglyph image having an added contrasting color; whereby, when said anaglyph is viewed stereographically, the perspective plane lies in the plane of the surface.
3. The anaglyph of claim 1 wherein:
- the left and right viewpoints are spaced to simulate human eye spacing.
4. The anaglyph of claim 1 wherein:
- the surface is a thin planar sheet.
5. A method of making an anaglyph on a surface of an object; the method comprising the steps of:
- producing left and right stereoscopic images of the object by
- producing a left view of the object on a left image plane orthogonal to a viewing axis not orthogonal to the surface; and
- producing a right view of the object on a right image plane orthogonal to a viewing axis not orthogonal to the surface;
- producing a left anaglyph image adding a first color on a surface as equivalent to a projection of the left view on the surface; and
- producing a right anaglyph image adding a contrasting color on the surface as equivalent to a projection of the right view on the surface.
6. A method of making an anaglyph on a planar page of an object; the method comprising:
- producing left and right stereoscopic images of the object by
- producing a left view of the object on a left image plane orthogonal to a viewing axis not orthogonal to the page; and
- producing a right view of the object on a right image plane orthogonal to a viewing axis not orthogonal to the page;
- producing a left anaglyph image by projecting the left view on the planar page;
- producing a right anaglyph image by projecting the right view on the planar page;
- adding a first color to the left anaglyph image; and adding a contrasting color to the right anaglyph image.
