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Select Re-route Dimension
in the Dimensioning toolbar (Dimension Edition
sub-toolbar). -
Select the angle dimension. You can notice that the cursor indicates the type of dimension you are selecting.
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Select the first element you want to take into account for the dimension re-routing, and then the second element.
Select the first element. Then, select the second element. 
During this operation, the cursor gives a graphic preview of what type of element you are selecting (in this case, lines). A preview of the re-routed angle dimension is displayed.
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Click to validate the dimension creation.
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You can proceed in the same manner to re-route the other dimension types available on the drawing.
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Always make sure that the element(s) to which you are re-routing dimensions are compatible with the re-routed dimension type. For example, when re-routing a radius dimension, you need to select a curved element.
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In a Generative Drafting context, you cannot re-route dimensions generated via the Generate Dimensions command.
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Re-routing dimensions preserves dimension properties when you customized them.
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When re-routing chamfer dimensions which have only two reference elements (the element to be dimensioned and a single reference line or surface), you will need to select three reference elements.
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When re-routing a dimension from one circle to another, note that:
A dimension associated to the circle's... will always be re-routed to the other circle's... and cannot be re-routed to the other circle's... edge edge center center center edge
