Slab with slope lines - hide selected split lines

[HVAC-Novice]

I have this floor with sloped slab. Since the slab is not rectangular, I get odd split lines. I know the contractor doesn't make the slab along those. But I also want to show it similar to how they will install it and want to hide the lines that are highlighted in yellow. I only want to show the split lines that are not highlighted. "hide" options are grayed out. 

This doesn't seem to be possible. 

One option would be to not show any split lines and use annotations for the ones I want. this seems inefficient. 

I also tried too add another point at the bottom, but it doesn't match up to just make it look good. Another option is a separate slab for that little bumbout. none of those options are really great. 

And I like to actually model it with slope. otherwise an option would be to fake it and just annotate the slope. I guess it is an option if none of the above works well and i don't really need a section that actually shows the slope. 

What is a good way to do this?  

[Mike.FORM · Accepted solution]

Use the linework tool in the modify tab and select the "invisible lines" style, then click the line you want to make invisible.

This will only apply to the current view so you would need to do this in all views you want this to happen.

[HVAC-Novice]

Thanks, that worked. I had seen that linework tool in some videos, but never really used it. it looks like it will do the same what the " hide in view" tool does. 

I think I only show the slope and the lines in one view (Floor finish view). So the above will work. 

A little bit OT: In deciding if i should model the slope, or just leave it flat and use annotation to indicate the slope, I tried to apply a paint. My above picture is just solid color, so there is no matchup between the slab sections needed.

I then applied a tile "paint" and expected the pattern to be screwed up where the slab sections meet. But to my surprise, the pattern works fine (except a tine bit at bottom left - arrow).

I assume in small rooms with center drain it may not matter if we actually model the slope. But in larger areas having the low point actually low may matter. Does everyone else actually model the slopes? 

[Mike.FORM]

The linework tool is specifically used for changing lines related to modeled elements (edges and joints).

You cannot hide just the edge of a wall, but you can make that line invisible for example.

In your case with a small room I do not model the slope as it doesn't really add value.

We have general notes on all our drawings that state "Coordinate all concrete pours with mechanical to ensure required slope to drains.

If we are doing a warehouse though with large pours we will model the slopes so that we have a visual of the capture areas for each drain.

[HVAC-Novice]

The projects we have done by consultants have similar language in the notes or specifications. the problem is, the contractor doesn't read any of those and installs the slab just flat. Sometimes the drain even is a bit higher. I have the feeling if I don't put it literally on a drawing, it may not happen. 

I agree on the small rooms not being worth to actually model sloped. In my example above it is just 1/2" lower. 

Anyway, thanks for the help. 

[ToanDN]

[HVAC-Novice]

I want to show the " normal" folding lines. See post #3 with the ones i want to show (and the weird ones not shown).

[ToanDN]

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@HVAC-Novice wrote:

I want to show the " normal" folding lines. See post #3 with the ones i want to show (and the weird ones not shown).

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I see.  if you don't want weird lines to show then you would need to model the floor as a bigger square, modify sub-elements, then use vertical opening cut to cut it to shape.  It is not worth for what you are doing but for actual roof with a lot of slopes that is what I do.