Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Ordinate vs Coordinate Dimensions

Status
Not open for further replies.

cdrvice

Military
Joined
Sep 15, 2021
Messages
7
Location
US
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.
 
ASMEstandard_adu9ac.png

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
 
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

 
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.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top