Could you show me the way to perform offset entity like SW Mania 2008 @ 04:03. I don't know how to do that!
Lines and arcs have a "direction" depending on which endpoint was created first. The default direction of the offset is determined by the direction of the entity from this creation direction and the reverse direction is the opposite of that. So in your case, if you delete the line and recreate it in the opposite direction from how it was created the first time, then the offset will be the other direction by default.
My guess is that in the video, it was just by chance that the line was created from left to right and the arc from right to left which results in their directions being opposite and the offsets being opposite. But, it very well could be that, because the guys making the video are so experienced with the software, they know that this is how it works and did it purposely to save themselves a couple of seconds and not have to use the offset command multiple times.
I want 2 yellow lines to offset inside 2 blue lines!!!
Do offset one arc/line at one time. Then repeat for second
Awesome!! It worked for me. Not sure if I'll ever remember it but learnt something new. This should be an option in the offset command to have internal or external offset of multiple items.
Kevin Pymm wrote: This should be an option in the offset command to have internal or external offset of multiple items.
Kevin Pymm wrote:
This should be an option in the offset command to have internal or external offset of multiple items.
Offsetting disconnected entities compared to connected entities (where the direction for all entities is automatically set to the same direction regardless of creation direction) is somewhat rare. And "internal" vs "external" offset of multiple items, especially more than 2, is a hard thing to define depending on how the entities are placed (or what if it is only 2 entities, but they are perpendicular). We could add a selection list and the ability to select each entity in the list and reverse the direction for each individual entity like we do for some features. But in those feature cases, there are benefits to having a single feature in the tree vs. multiple features. With offset, the geometric/constraint set result of doing the offset in one command vs. running the command multiple times is exactly the same.
So, instead of cluttering up the UI for offset to account for all these "edge cases" we've instead decided to just keep it very simple since the time to execute the command multiple times would be about the same amount of time as fiddling with the options to get what you want, and the resulting geometry created would be exactly the same.
Agreed, that is awesome. Never knew there was any logic to it. Does seem like one to many things to think about when constructing a sketch though. Sometimes you don't even know you'll want to offset the sketches later, some extended options would be good, or you just offset an entire chain then delete the unwanted segments.
Jim, thanks for the explanation. It adds another trick in the pocket
"It was just by chance that the line was created from left to right and the arc from right to left which results in their directions being opposite and the offsets being opposite"
Thanks for your explanation!
I did not know that! Awesome. If that ever happened to me, I just did a "both ways" and deleted the ones I didn't need.
Did you know why expert could do it at one time as you have seen???
Well that never worked for me, so not sure what trick Mark used to do that
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