Ordinate vs Coordinate Dimensions

[cdrvice]

I've always been vague on this. Is there a difference between Ordinate Dimensions and Coordinate Dimensions or are they the same? It seems the terms are used interchangeably.

 

[drawoh]

cdrvice,

As far as I am concerned, Figure[ ]4[‑]48 is ordinate dimensioning, and this probably is the term they use on your CAD software. On a drawing with lots of holes, ordinate dimensioning is less cluttered. If you have too many holes, your next step is tabular dimensioning.

--
JHG

 

[CheckerHater]

There is no word "ordinate" anywhere in the standard.

"For every expert there is an equal and opposite expert"
Arthur C. Clarke Profiles of the future

 

[3DDave]

ordinate - (in a system of coordinates) the y-coordinate, representing the distance from a point to the horizontal or x-axis measured parallel to the vertical or y-axis.

In the '2009 version there is no use of the word "ordinate." Sometimes the standard appears to contrast "coordinate" with "BASIC" but many times BASIC dimensions are coordinate dimensions. They are not exclusive.