||SIMULATION|| black-primary point blue-primary line press a to turn on or turn off guidelines ||GUIDELINE COLORS|| green-line in offset for point A to be at origin maroon-green line with one spherical coordinate angle reversed red-green line with both spherical coordinate angles reversed cyan-primary point in offset and reverse rotation with red line yellow-cyan point rotated around x-axis; reverse-rotated line is on x-axis magenta-yellow point re-rotated by spherical coordinate angles from green line purple-final rotated point with magenta point in offset with first point of line in normal position
This is a continuation of a project on @_paperN1, with some corrections and removal of unneeded work.
