Question about removing dotted lines in arc on Mansard Roof

When I made this arc for my mansard roof, it makes these dotted lines, which I presume is to show that
there is an arc on the material.
However I would really like to remove these lines, as the interfere and break up the materials when I “paint” tiles on the roof. It does also look weird when there are these short lines there.

Is there any way to remove them and still have the functionality of the arc/curved surface?


Turn off Hidden Geometry in the View menu

Wow. Thanks. That worked.
I have been using computers and software similar to this for so many years now.
I cant believe I spent the last 3 hours trying to figure this out.
Thanks a bunch :slight_smile:

As DaveR says.

I would also note that if you turn off hidden geometry in a “scene” that you save the scene (right click tab to “update”) so that each time you return to the scene, the hidden geometry does not return. Also make sure the “hidden geometry” box is checked in the scenes dialogue box to be sure this option updates.

Not sure if some of the lines are coincident but you can also get rid of the “guides” in the background too in the same way.

One more thing to note from my own experience, is that occasionally we end up with a solid line in the model that we don’t necessarily want to be visible, but the model still needs the geometry the line creates. In this case you can “shift+eraser” tool on the line, which make the line invisible in the view but does not delete it. Like above, you then need to “update” the scene to save that look and prevent the line returning next time you look at that scene.

Happy that helped.

As for the guidelines, if they’ve served their purpose, don’t hide them. Delete them. There’s no need to keep them in you aren’t using them anymore. I set up E as a keyboard shortcut for Edit>Delete Guides. I use that more frequently than the Eraser tool.

I’ll say that even more strongly: guides you aren’t actively using for what you are currently editing are just clutter that can accumulate to the point that you can’t tell what guide is supposed to be for what! They are easy to create, so make them when you need them and then ditch them immediately afterward.


Actually for some reason they do not work as guidelines. These are not guides I made myself.
They showed up when I made the arc.
If I delete them, the whole surface and structure is also deleted.
Even if I uncheck the hidden geometry, the lines still mess up the “Painting” of my roof tiles.
It makes them into these sections.
Is it supposed to do this?
Maybe I am doing something wrong. After all I am not that skilled in this program.
So it might be something I am missing.

those are “hidden geometry,” lines

. I would suggest “projecting” the tile texture over this roof face to get a seamless look. (rough mock up attached)

I wasn’t referring to those softened edges. I was referring to guidelines that show in your first screen shots. There’s one that shows in your latest screen shot extending down past the window on the right.

I have now tried to make this kind of arc, like you did, but cannot for the life of me understand how it is made.
I only manage to make one that has the same curve (that is an even curve)
The one I want to make is increasing in curve at the bottom, but I cannot understand how to do it.
I have tried searching, but I lack the terms and words for what to search for.
Can you please give me some hints or direct me to an easy instructional video where this is done?

This is the curve I want to make.
(As you can see on the SU model I made, the curve is even all the way, not like this one.)

I would use a Bezier curve and use Fredo’s Bezier spline tool to draw it. You can get it from Sketchucation.

Thanks! That worked like a charm! :slight_smile:

The “bezier line tool by Sketch-up team” is what I had used for that example, but as DaveR says there are others too.
Interestingly, your roof example photo for the tiles relates well to how SU makes curves (which are a series of straight edges). So you could form your roof’s curve with a series of tile segments which are straight but will produce a curve as to how they are arranged. The curve would then only need to be the masonry part of the roof edge. Doing it this way would certainly be more convincing in a render (see attached - not exactly your tile but similar to demonstrate)

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