[Plugin] extrudeEdgesByLathe

TIG · 23 Jan 2010, 16:41

Here's v2.4 - FR lingvo file update by Pilou.
http://forums.sketchucation.com/viewtopic.php?p=184477#p184477

unclex · 25 Jan 2010, 09:48

wonderful

jeff hammond · 25 Jan 2010, 15:17

hey Tig,

here's a request for the lathe tool to tuck away for those rainy days

your extrusion suite has radically changed the way i model in SU as i very rarely use the followme tool anymore.. lathe pretty much fixes the multiple problems i encounter with

anyway, the only problem i have with lathe.rb is when i'm trying to rotate to an approximate degree (ie - **~**74° etc.).. would it be possible to incorporate a protractor of sorts that can measure the actual angle instead of typing it in?
(see attached skp for example situation)

thanks!

latheQ.skp

TIG · 25 Jan 2010, 15:22

As you know [sssh ] I'm looking at some other related extrusion tools and these will involve a protractor to rotate stuff with before making the shapes - so when that's working perhaps I can bolt it on to EEbyLathe

jeff hammond · 25 Jan 2010, 15:43

@tig said:

As you know [sssh ] I'm looking at some other related extrusion tools and these will involve a protractor to rotate stuff with before making the shapes - so when that's working perhaps I can bolt it on to EEbyLathe

sweet!
i do have a decent workaround for now that still gives me the accuracy i'm after so i'll just wait patiently (with fingers crossed )

balloon · 31 Jan 2010, 19:43

Thank you Tig! Much appreciated!!!

TIG · 30 Mar 2010, 16:19

New version added http://forums.sketchucation.com/viewtopic.php?p=184477#p184477

DIEGO-RODRIGUEZ · 30 Mar 2010, 17:38

Hi Tig. excellent update.

I attach the file to Spanish translation.
add the missing lines.

Two suggestions:

Please delete the sound it makes when we choose the tool. is very annoying.
The command Ctrl + z does not work properly.
Would be more practical angle by reference to generate 0 to 360. instead of 0 to 180 and 180 to 360

extrudeEdgesByLatheES.rar

TIG · 30 Mar 2010, 18:38

http://forums.sketchucation.com/viewtopic.php?p=184477#p184477 is the latest version with new lingvos.

TIG · 30 Mar 2010, 18:43

@diego-rodriguez said:

Hi Tig. excellent update.
I attach the file to Spanish translation.
add the missing lines.
Two suggestions:

Please delete the sound it makes when we choose the tool. is very annoying.

The command Ctrl + z does not work properly.

Would be more practical angle by reference to generate 0 to 360. instead of 0 to 180 and 180 to 360

I posted the new ES lingvo file before I read this - can you please read it and [re]advise...
The 'beep' sound it makes is a UI.beep - edit the file and find that line in the code and add a # at the start of the line to stop it loading.
It is not Ctrl+Z for the angle-direction 'toggle' - it's < Ctrl> alone...
I know it would be better to have 0 to 360 degrees... BUT its coding has missed me so far - hence the 0-180 & 180-360, with a toggle <Alt>...

Rich O Brien · 27 May 2011, 21:12

I didn't read the 6 pages prior so if this is already covered I apologise...

Attached is a .skp that Lathe removes faces from when 'Remove Co-Planar edges is chosen?

No Ruby Console messages

EebyL_Error.skp

TIG · 27 May 2011, 21:47

@unknownuser said:

I didn't read the 6 pages prior so if this is already covered I apologise...

Attached is a .skp that Lathe removes faces from when 'Remove Co-Planar edges is chosen?

No Ruby Console messages

Interestingly, when I tested it I got 6+ more facets erased!
I know why it's happening...
When you test for coplanar-ness you look at the face normals.
You erase edges that bound a pair of faces with the same normals.
However, it was realized by @last/Google that this doesn't always work...
You can have two faces that will heal into one if there common edge is erased BUT they won't return the same normal ! The tiniest variation in the normal would prevent that...
It's all down to tolerances of how SUp works out face normals etc that are really 'equal'...
In Line#755 it says ... e.faces[0].normal.dot(e.faces[1].normal) > 0.99999999999 - i.e. it's almost one!
If I add/subtract an extra 9 on the end it's even worse??
My own separate 'erase_coplanar_edges' tool uses 0.99999999 and that fails too... but with only two faces lost that time! But if I try to use its 0.9999999 test in EEbyLathe it'll still knack up...
So... it's not an error just one of the limitations of the tolerances that crop up when you have managed just to get some 'not quite' coplanar faces and try to remove some 'not quite' coplanar edges...
If it knacks up then all you can do is to undo it one step back to keep coplanar edges - try other coplanar fixing tools and report back... OR just learn to love them... otherwise try to make forms that don't mess with SUp's head

TIG · 20 Oct 2011, 19:05

There is a minor correction to this tool so the 'db' translation for the 'start_operation' is now done correctly - there is also an updated ES lingvo file - thanks to deFisto...
http://forums.sketchucation.com/viewtopic.php?p=184477#p184477

TIG · 22 Oct 2011, 21:17

No file attached
It's relatively simple to select all and smooth/unsmooth.
Use Hidden Geometry ON to see what's happening
It's also relatively simple to do it to a selection.
You can also use a selection of edges and Entity Info to uncheck smooth/soft [and hidden] settings for edges.
The tool produces smoothed-edges if desired.
I'm not sure what you are trying to do that it doesn't do OR what isn't easy to do by hand later ???

pbacot · 22 Oct 2011, 21:57

The file is attached. I see it there. I reloaded and perhaps you viewed in the moment that I did that.

The edges I need to smooth are many and selection would need to be almost one by one, to not get the wrong edges. If this is best way, so be it. If I create many versions of this model, I want to be more efficient if I can.

Also I should say, look at both scenes.

Thanks, Peter

pbacot · 22 Oct 2011, 22:01

Hi TIG,

This is another great one, including the control it gives on the angle etc. However I have a project in which I want smooth edges for the curved faces but not along the flat faces that result. So I wonder if this is the wrong tool and you have other suggestions. I have attached a file if you are interested.

Given the work to create this otherwise (create full circle and cut with intersections), it may not be too much to smooth all the edges "manually". This is only a prototype for a coming project which will probably be drawn many times in design, so I am seeking the best method. Just seeing if I am using the right tool or using it correctly.

Thank you for the plugin and, of course, anyone can chime in.

Peter

AMPHITHEATER 3.skp

jeff hammond · 22 Oct 2011, 22:18

^
i always have problems with the smooth option as well (as in, it smooths everything)

choose no for smooth then select the group and smooth is via the soften/smooth dialog

pbacot · 22 Oct 2011, 22:22

Yes, Jeff the smooth option smooths every edge--too much here.

I got it, I think! Using this tool and ThomThom's Selection Toys to quickly select those edges I need to smooth.

TIG · 23 Oct 2011, 10:23

OK, now I see the issue.
You want yes to smooth? not to smooth every edge - for example leave those with only one face or two faces at right-angles of sharper ?

TIG · 23 Oct 2011, 11:00

Updated v3.4 so it now only smooths edges with more than one face.
http://forums.sketchucation.com/viewtopic.php?p=184477#p184477