Baseline Dimensions
Baseline dimensions are reference dimensions used in drawings. You cannot change their values or use the values to drive the model.
When creating baseline dimensions, you define a baseline position with the first selection and select subsequent locations to dimension. All values are measured from the initial baseline.
Baseline dimensions are automatically grouped, and they are spaced at the distances specified in Tools, Options, Document Properties, Dimensions under Offset distances.
You can also dimension to midpoints when you add baseline dimensions.
To create a baseline dimension:
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Click Baseline Dimension on the Dimensions/Relations toolbar, or click Tools, Dimensions, Baseline.
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Click the edge or vertex you want to use as a baseline.
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Click each of the edges or vertices you want to dimension.
If you select an edge, dimensions are measured parallel to the selected edge. If you select a vertex, dimensions are measured point-to-point from the selected vertex.
Edge as baseline
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Vertex as baseline
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