Sketch offset, curve selection?

[and.ranch]

Hi there,

I simply can't figure out how to make this works:

I've been trying a couple of times to do offsets of loops in sketches, but unless i use e.g. the rectangle or circle tool, i can't get the offset tool to recognise a sketched loop. It either doesen't include a line in the loop, or gives me the error "cannot offset beyond this point", which i interpret as if it is trying to offset beyond the sketch itself. 

I've then tryied to go around and select the lines to do the offset from, but i then hit the wall because the tool doesen't allow for selecting multiple lines, which makes it practically worthless.

Hope i'm just missing something, and you can help me out!

[NicolasXu]

Hi and.ranch,

Regarding the message of “cannot offset beyond this point”, a simple case is that the offset result would require some topology changes at the given distance, which is not supported at present. We’re making some improvements to handle such situation and should be available soon.

To ensure the fix can solve your problem, would it be possible to share the model with us for a further look (and which loop were you trying to offset)? You can either Export the entire file as .F3d format or Share Public Link with me by enabling the download permission. Both commands are available under the File menu. 

My email address: lixiong.xu@autodesk.com

[FreezeS]

Hi guys, 

I have the same problem, can't select multiple lines to offset even if they are linked: https://screencast.autodesk.com/main/details/796929aa-b841-4413-9c2f-efca80b1eccb

If I select them before clicking on the Offset tool, they get deselected.

[JuggerDesk]

Hi,

Just to share what I noticed about the subject.

If I create a sketch and draw a "center rectangle", it is then impossible to apply an offset. you can only select a single line of the profile.

If you draw a "2-point rectangle", then , you can perfectly apply an offset by selecting the whole rectangle profile.

Hope this helps devs to spot the issue somehow.

[brianrepp]

Thx @JuggerDesk This has been logged (FUS-17085).

[jesse]

I'm still seeing this issue in the May 7, 2016 update. Do you folks have an ETA for a fix?

[FrankCao]

Hi Jesse,

With the new update of May 7, you should not see the offset loop selection problem anymore. We even added support for preselection of sketch geometries before sketch offset.

So could you help attach the f3d file here or send it to weining.cao@autodesk.com to us to continue analyze this problem? Also it would be better to tell us which loop you are going to offset but failed to select it. (If you could provide a video to help demonstrate the problem, we'd appreciate very much) 

Thanks,
Frank

[jesse]

Hi Frank,

Even if it's not working right for me just yet, that's great news.

It's not a public model, so I can't share it here, but I'll do a bit more testing. If I can replicate the issue, I'll record a video and send you the .f3d.

Thanks so much for the quick response!

-jesse

[MTVDNA]

I am experiencing this same issue. It appears to be very inconsistent though, at one point I managed to select multiple lines while creating an offset, but still not all I wanted. At the moment I can only select one, and any selection I made before choosing the offset tool is lost (it only keeps the first selected line). Other times I can create offsets just fine, with no issues whatsoever. 

I tried to record a screencast showing the problem, but of course it magically started working again... I did manage to record the offset tool losing the selection though:

I also attached the file I was working on. Hope this helps!

[MTVDNA]

I had the same issue today, this time I did manage to get a recording. I ended up drawing the sketch from scratch again before it worked.

Edit:

I forgot to add the screencast. I copied the link from the screencast share button, but for some reason the forum doesn't accept that link...?

It says:

"Sorry, that's not a Screencast URL. Please choose a public Screencast from https://screencast.autodesk.com and try again."

Here's the link:

http://autode.sk/2bbzoXY

[FrankCao]

Hi MTVDNA,

Thanks for reporting the issues. Yes, sketch offset chain selection still has some problems when there are multiple points located at same location and have coincident constraints among them. We have reported related bugs internally and are investigating a fix now. Hopefully we will address this issue soon. 

Thanks,

Frank

[Anonymous]

The last post is more than nine months old. Will there ever be the possibility to select multiple curves when doing an offset?

[FrankCao]

Hi info,

Currently Fusion should be able to select multiple curves if they are connected one by one by uncheck "Chain Selection". But Fusion still doesn't support select multiple curves if they are not connected one by one. 

Do you still want the ability to select multiple disconnected curves when doing sketch offset?

Thanks,

Frank

[Anonymous]

Hey guys,

i have a Problem where i can not select a curve from an Body!

[FrankCao]

Hi greynox,

Thanks for reporting this issue.  Are you seeing this for every model or you just see this for specific model?  

Could you help attach your model in this thread or send it to weining.cao@autodesk.com for us to go on analyze the problem?

Thanks,
Frank

[Anonymous]

Yes, I'd like to have such a feature. I drew quiet a large number of circles and want to make rings out of them with the same offset value.

Thanks for your time, Daniel

[FrankCao]

Hi info,

I think to support multi selection of disconnected curves might be a little difficult for sketch offset because sketch offset needs to track the offset parent curves. There are two options:

1. Support multi selection of disconnected curves and when commit, generate 1 offset for all the selected geometry.

This will make offset track a lot of the parent curves in sketch and it would be very expensive for solver to do so. Circle is easy, but consider non-standard sketch geometries, you can select any geometry which is connected or disconnected. And offset needs to group each connected curves as one sub-group of offset, and make those dis-connected curves offset separately. The tracking of those curves could be very complex during sketch compute.

2. Support multi selection of disconnected curves and when commit, generate several offsets, each for connected geometries. For example, you can select 3 circles and offset just once, then we will generate 3 offsets, each offset working for 1 circle. 

This might be easier and doable. But you lose the ability of modifying those 3 offsets by one click. 3 offsets could have 3 different offset values. You can manually edit those 3 offset dimensions to make them use same dimension parameter. But that still needs a lot of manual work.

What do you think?

Thanks,

Frank

[moth3r]

Please improve it, any solution is better than what's current. Right now, I have to (re)draw my lines just because most of the times as you cannot select them. I don't even have to stress how impossible is to inset/offset a curved surface. Everything mentioned is one click solution inside Moi3D, on both curves - sketch and 3d model.

[ovisopa]

Hello guys,

I found this thread when I wanted to open a new thread about this same issue, and I see it's an 2 years thread 😞 

I attached my model, I always receive DXF files from clients, this was imported in Fusion, I made the 3D model, but when I wanted to make the internal offset I must select each line at a time, yesterday I had to do the same with another model ... so why this can't just work as it should ? In my case the lines are connected (I think, how to check if the lines are 100% connected ?)

As you see in the photo bellow, when offsetting one line at a time another issue appears, the offset line/arc will not be connected with the other offset line that, in the photo bellow you can see the arc doesn't touch the line I just tried to offset by the same amount -0.1mm

So, is there a way to offset all lines at once (all lines seem to be connected) ? 

[ovisopa]

In the same file attached  in my previous post, there is another sketch, I need to offset that to and that is much difficult to offset one by one.

When I hover over the internal area, the color of that area changes (check the image bellow) , so Fusion knows the lines are joined / closed, so

WHY IT'S NOT ABLE TO SELECT ALL THE LINES WHEN I WANT TO OFFSET TOO ?