An ordinate dimension annotates the perpendicular distance from an origin or base point (the origin of the current user coordinate system [UCS]). Ordinate dimensions consist of an x- or y-coordinate and a leader. An x-ordinate dimension measures distances along the x-axis; a y-ordinate dimension measures distances along the y-axis.
As you select ordinate points, the program automatically determines whether the point is an x- or y-ordinate based on which direction you drag the second point. You can also specify whether the ordinate represents an x- or y-ordinate. Ordinate dimension text is always aligned with the ordinate leader lines, regardless of the text orientation specified by the current dimension style.
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Ordinate dimensions measure the distance along the x- or y-axis from an origin to a selected ordinate point.
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To create an ordinate dimension
1 Do one of the following to choose Ordinate (
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• On the ribbon, choose Annotate > Ordinate (in Dimensions).
• On the menu, choose Dimensions > Ordinate.
• On the Dimensioning toolbar, click the Ordinate tool.
• Type dimordinate and then press Enter.
2 Select the point for ordinate dimension.
3 Specify the ordinate leader endpoint.
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Select the ordinate point (A), and then specify the ordinate leader endpoint (B).
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Selecting exact points is important when creating dimensions.
Use entity snaps to select precise ordinate points.
