Revit Tutorial: Using Show Remove Hidden Lines Tool for Displaying Concealed Element

In this video, we're going to look at a tool called Show/Remove Hidden Lines. There may be a time when a filled or masking region will conceal something underneath that you want to show as a dashed line. The Show Hidden Lines tool allows you to do this.

Let's go to our Enlarged Elevation Southwest Window view. Draw a masking region with the edge style set to Wide lines. Now what we're going to do is draw a rectangle where the top edge of the masking region is going to align with the top of the first-floor slab.

And then we're going to simply draw a rectangle large enough to extend out past the crop region edges. Essentially, what we're going to do is mask everything below the floor line, which would be the floor slab and the topography fill. Let's hit the green checkmark to finish.

Now let's go to the View tab, then to the Graphics panel, and select Show Hidden Lines. So the first thing is selecting the element to show hidden lines through. And in this case, what we're trying to do is to show the floor slab dashed past this masking region we just drew.

So I'll select the masking region first, and then the second pick is going to be selecting elements that will show hidden lines. And that is going to be our floor slab. Now this dashed line is directly related to the thickness of the pad that creates the first-floor slab in this model.

If I were to select that pad and change its type so that the thickness was something different from six inches, that dashed line moves along with it. So it's a little bit more powerful than just drafting a line on top of the model. It actually will move with the model changes.

Let's go ahead and undo that change and leave the slab at six inches. Note that you can undo this command by using the tool Remove Hidden Lines. In the next video, we're going to look at a tool called Cut Profile.