[alogo] Geometric locus

An example of a simple geometric locus.
Point A moves on circle o1.
Point C is the projection of A, parallel to line e, onto the fixed line o2.
Point B is the projection of C, parallel to the direction d, makin an angle w (constant) with line AO, on the line AO (O fixed point).

b is the curve representing the geometric locus of B.

[0_0] [0_1] [0_2]
[1_0] [1_1] [1_2]

The simple case, a generalization of which is the present, is contained in the document:
Simple_Geo_Locus.html .

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