Ordinate dimensions measure the perpendicular distances from an origin point called the
datum, such as a hole in a part. The datum is established by the current location of the UCS origin.
Move the UCS origin to the datum.
Click
Annotate tabDimensions panelDimension.
Find
At the prompt, enter
o (Ordinate).
If you do not want jogs in the ordinate leaders, turn on Ortho mode [F8].
Specify a point for the feature location.
Specify a leader endpoint.
Note: You can also specify an
X- or
Y-datum to determine the orientation of the dimension location and dimension text.
You can use polar tracking to line up the text of the ordinate dimensions.