(up if Y is positive, down if Y is negative).
Connect that point to (0,Y,0) on the y-axis.
This new line segment should be parallel to the x-axis,
not horizontal.
These two lines along with the x-axis and y-axis will
form the left or right side of the locator-box.
step for the z-coordinate.
That is, draw a dashed horizontal line Z units (X,0,0)
(left if Z is negative, right if Z is positive).
Connect that point to (0,0,Z) on the z-axis.
This new line should again be parallel to the x-axis,
not vertical.
These two lines along with the x-axis and z-axis will
form either the top or bottom of the locator-box.
down to the point (0,Y,Z).
Connect this new point to the point (0,Y,0) with a
horizontal line.
These two lines along with the y-axis and the z-axis
will form either the front or the back of the locator-box.
with the last of the dashed lines that together will show
any observer where our point is located in space.
Draw dashed line segments horizontally from point (X,Y,0),
vertically from point (X,0, Z), and parallel to the x-axis
from point (0,Y,Z).
Where these segments intersect is the desired point (X,Y,Z).
If all has gone well, all the dashed lines, along with the axes,
should form a box, showing how far out, up, and over from
the origin our point (X,Y,Z) is.
