more experiments with adding a variable whose type is POINT.  sigh.  Not there yet.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
change data-frame-as-matrix to data-frame-as-lisp-array so is factually accurate.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
export helper functions for strands.  THIS IS JUST FOR EXPERIMENTS, not sure it will be needed in the long run.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
doc-strings and output cleanup.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>
More example cleanup -- defstruct works, now just need defclass, and then can think about helper functions.

Signed-off-by: AJ Rossini <blindglobe@gmail.com>