Overhanging Roof Outline

[Anonymous]

Hi, I need to show the outline of the roof in views of lower floors.  Is this easy to do?  Will it be achieved by moving the view range and then hiding things I don't want to see?  Seems a bit long winded if it is especially if it means when you are on the ground floor you would then need to hide every item above........

[ToanDN]

Turn on Underlay to see the Roof.  Use Linework tool to make the roof outline Hidden or any line style you want.  Then turn off Underlay.

[Anonymous]

How simple was that, but not for me!!!  I just want to show the outline of the roof profile but when I select the lines its actually selecting the whole line/attribute so it crosses over in several instances - see below.  Ideally I need this trimmed back but that doesn't work - I think because it doesn't want you trimming the actual wall, roof, etc.  Any ideas?

02-05-2017 08-02-35.jpg

[ToanDN]

When you use the line work tool you should see two grips for each line. Drag it to shorten the line.

[Anonymous]

Right, thanks.  I'm not 100% happy with it but it will have to do.  I have 8 drawings that need the roof outline adding, is there a quick way I can do this or is it one drawing at a time?  I can't select the hidden lines.

[ToanDN]

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@Anonymous wrote:

Right, thanks.  I'm not 100% happy with it but it will have to do.  I have 8 drawings that need the roof outline adding, is there a quick way I can do this or is it one drawing at a time?  I can't select the hidden lines.

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If the outline is the same for every drawing, then draw using detail lines, lock the lines to the atcual roof geometry, make a group, and copy the group to all drawings.

[Anonymous]

Well I don't know what I'm doing wrong but I can't get that to work.  For some reason when I select the hidden line it turn blue, I then press CTRL and another line to add it to the selection but the first gets deleted........pressing escape brings everything back.  I've even tried selecting everything ( even though its disappears ) and copying it, then align to a level but it doesn't paste what I want in the new level and it adds other stuff into the level I started in.

So, I thought I'd do each level on their own but I'm not getting the same `roof` outline in each level even though the underlay settings are the same......

Plus, when you've drawn a Hidden line you don't seem to be able to remove it.

The roof area I have to show is a mixture of a steel frame, a concrete floor and the extruded roof section - when I select them it seems to select the whole area - for example the whole concrete floor even though I just want a part of the floor to be shown in the hidden linetype. 

Very confused!

[ToanDN]

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@Anonymous wrote:

Well I don't know what I'm doing wrong but I can't get that to work.  For some reason when I select the hidden line it turn blue, I then press CTRL and another line to add it to the selection but the first gets deleted........pressing escape brings everything back.  I've even tried selecting everything ( even though its disappears ) and copying it, then align to a level but it doesn't paste what I want in the new level and it adds other stuff into the level I started in.

Do window select, then click on Filter on the Ribbon and uncheck everything except for Lines (Hidden).  Make group.

So, I thought I'd do each level on their own but I'm not getting the same `roof` outline in each level even though the underlay settings are the same......

Set the Underlay Range: Top Level = Unbounded so you see the highest outline.

Plus, when you've drawn a Hidden line you don't seem to be able to remove it.

Of course you can.  You just need to select it first.  Use TAB generously.

The roof area I have to show is a mixture of a steel frame, a concrete floor and the extruded roof section - when I select them it seems to select the whole area - for example the whole concrete floor even though I just want a part of the floor to be shown in the hidden linetype. 

What is this step for?  Why do you select them?

Very confused!

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[JJWGallagher · Accepted solution]

It sounds like you may be using the linework command. Try the detail line command and just trace the roof lines.