What is GkRep?
To measure an architectural building, you usually use dimension objects and styles.
You carefully place your dims so the builder can reproduce them on the site.
In some countries (mine for instance) it is used a combination of dims -to measure between
spaces- and a kind of ordinate or baseline dimension -to measure important items from a fixed
pair of axis.
This last type of measurement is the most accurate way of reproducing the exact location of
an item (wall side, center, window center, etc), because it is always refered to the same
origin, and not the sum of partial dimensions.
Well that's all for an introduction.
Autocad does not provide nothing of the like. Even the ordinate or baseline dimension objects
does not reproduce this concept very good. So I implemented an object (GkRep) to represent
that kind of measure object.
How it works?
First you define your pair of axis, they must be perpendicular to each other. The intersection
of them is the origin point. All the GkRep objects are refered to this point and are either
paralel or perpendicular to the axis.
By default all new objects have the origin point at 0,0,0 (the WCS origin), and the orientation
of the imaginary axis is 0.00.