Trim command crashing Rhino when using '_SelBrush

Rhino
1

Hi there,

The trim command is super important, and very intuitive to use. However, I can only reliably use the drag window over items to trim. If I use -selbrush to make quicker and more accurate selections, it works sometimes, but often causes a fatal freeze, which on about 5 occasions has lost me 40mins of work.

I just did this test, and it froze.

Using the trim command, I selected the internal rectangle as the cutting object, then did '_SelBrush and selected the internal lines which worked (1, 2). When doing the same thing but brushing the curves outside the rectangle, it freezes indefinitely(3).

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image1969×1064 104 KB

2.
image
image1480×675 70.8 KB

3
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image1310×763 117 KB

Is this something which can be fixed?

I’ve attached the file for testing if you want.
test.3dm (470.8 KB)

Best,
Jeremy

2

Hi Jeremy- I see this, thanks - selFence does it as well. It seems to go south when it gets a curve that cannot be trimmed by the selected cutters - is that what you see?
RH-68721 Trim chokes with SelBrush

-Pascal

3

@jdelavaulx

In the meantime, for these situations, you might try the following. Will be even faster than using SelBrush inside Trim.

MultiNestedBoundaryTrimCurves.py (4.1 KB)

4

Oh wowowow… this is just a bit of an epic script.

I think that it will be beneficial for global trims, but for trims using open curves, the fixed selbrush/selfence will still be very useful.

Best,
Jeremy