When drawing a Revit model, it is convenient and quick to import CAD drawings for modeling, but we often encounter the problem that the center line cannot be picked up in the CAD basemap, which will affect the model accuracy when modeling.

Solution:

First, find out the reason why it can't be picked up, select the CAD basemap, select the "Query" command under the Import Instance panel, and then select the line that can't be picked up. It is found that the type of line is spline curve, as shown in figure 1.

Figure 1

The type of line that can be picked normally is Line.

So we can solve this problem by dealing with CAD basemap and converting spline curves into polylines.

Enter the shortcut key PE and execute the command.

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