How to make offset in full length
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It's a simple line parallel to the last arc segment
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If you knew in advance that you were going to need to use Offset on the curve, you could draw the original curve to include that extension but the straight line segment cotty drew will probably provide sufficient detail in most cases.
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A couple of things, when you extend the line like that you will always get a small segment at the end that isn't part of the offset and will need to be welded, also you tend to get tiny leftover stray lines that can cause issue. Personally I find it easier to extend and fix as I go so I don't miss them. In many cases I will simply move the end of the line to connect by grabbing the endpoint of the line with the move tool and dragging it to the other line.
In some cases you may just want to copy/move the line rather than offset. -
What if we have spline shape our something not straight, its not possible to extend with straight line in these cases,... what if use some kind of command like in autocad "extend"
is there such plugins in SU like "extend" and "trim"?Our something like SU plugin "smart push pull" which push surface and follows shape direction. So would be nice to have something what extends our pushes simple line in same shape direction..
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Perhaps the best thing you could do is plan ahead a little a draw the spline long enough so you don't have the offset wind up shorter than you need it to be. If the curve was a real arc, that is circular, you could identify its center and use that to add additional segments. I suppose you could eyeball continuing the spline but how do you decide where the end should be?
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Or perhaps offset 'outwards', rather than 'inwards'... and then you'd have some spare length ?
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But is there any tools to extend regular shapes like arcs and lines in desirable direction?
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An arc or a line is easily extended with native tools but when the curve is not an arc, what is the desirable direction?
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@dave r said:
An arc or a line is easily extended with native tools but when the curve is not an arc, what is the desirable direction?
Sorry for dummy questions... I do not know how to extend our trim fast in SU. In autocad there is special tool for that.
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My 2dtools has two tools that might help...
'Fillet' which will extend/trim lines with a radius fillet or chamfer, BUT if you set it at 0 it acts much like CAD's extend/trim.
'Adjust' which lets you pick target line[s] and then pick/wipe-over lines/arcs to extend/trim to the target[s].
Lines are adjusted to suit.
Arcs are remade to extend to the new intersection points...
See its help etc, and practice it... -
does 2D tools works in all planes, I have them
but have not examined all carefully these is something on my to do list these year 
First thing about them I could not find out how to use them in other planes, not only x,y flat plane in top view.
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The main 2d drawing tools are on a flat 2d plane.
But several others in the set work in other planes too...
And of course to 'fillet' or 'adjust' edges they do need to be in a 2d plane so that they can/could intersect, but then that plane need not be 'flat'...
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