Hello @pascal
I recently came across a new command to create an untrimmed surface where the control points get rearranged in to a clean untrimmed surface after trimming.
Could you remind me where I can find this?!!
Thanks
Sach
1 Like
Hi Sach - testTrimRefit is probably what youâre after.
-Pascal
2 Likes
this seems to work very well. Are there more hidden gems you can share @pascal ?
2 Likes
Hi Gijs - there are⌠all in the test stage -
testSplitRefit - split a surface and get back untrimmed surfaces
testFitCurveToSurface - fits a curve on a surface to match the surface parameterization.
testFitCurveToEdge - as above but makes a new curve from an edge curve.
testFilletSrfCrv - creates a fillet from a surface to a curve that is not on that surface at a user defined radius:
testFilletSrfToRail - creates a fillet between two surfaces, letting the user define the rail on one surface. The fillet radius varies accordingly, there is no radius input from the user, only the rail shape.
testFilletSrfNonRational - Like the current âFilletSrfâ command but offers control of the arc section degree and the rail fitting (e.g. Bezier sections).
-Pascal
9 Likes
@pascal
Thatâs the one.
Thanks!
@pascal a few notes:
commands ask to âpickâ rather than âselectâ --> select is used normally for selecting things in Rhino
testFitCurveToSurface seems to do nothing
testFitCurveToEdge works well
testFilletSrfCrv works butâŚwhatâs the idea behind it?
testFilletSrfToRail works but gives only partial results. Fillet doesnât extend all the way. Also when selecting the curve that is on the surface, then select the opposite surface first, then the surface that the curve was on, Rhino crashes. EDIT: actually it can also crash Rhino when picking in ârightâ order I just found
testFilletSrfNonRational works but a few things should be changed:
UI should appear right after running the command, not after selecting the first surface.
When the UI appears, I cannot enter the radius by entering a number like with FilletSrf
Trim/Split: option could be done like FilletSrf
Hi Gijs - yes to all your points about ui, and more.
testFilletCrvSrf allows this type of fillet:
Degree 5 surface. Red = Input curve (projected), Cyan = testFitCurveToSurface:
Hope that helps someâŚ
-Pascal
thatâs nice to see. Strange name though. In SW itâs an option ⌠keep edge. Would be better if it was integrated into FilletSrf eventually. It could in fact be an option for FilletSrf so that when it reaches the edge that it continues along it. I just tested it with a fillet that only partially can reach the edge and then depending on where you click it makes the part that works, the part that fails or both:
Where it fails the ball starts rolling on the wrong side of the edge it seems
TestFilletCrvSrf.3dm (135.9 KB)
Hi Gijs - Yep, on this one as things stand, you have to piece it together with several FilletSrfs.
-Pascal
@pascal
Great stuff.
Is there any tool where you can fit a fillet/blend through 3 surfaces?
So if we imagine an extruded âUâ shape with three surfaces.
A bit like the arc tangent to 3 curves tool⌠but for surfaces?
yes that would be nice too, like this in SW:
2 Likes
Hi Sach - nope⌠nothing on that yet Iâm afraid.
https://mcneel.myjetbrains.com/youtrack/issue/RH-780
-Pascal
just found that it didnât work with two trimmed edges. So when it has 2 trimmed edges, I have to untrim 1 edge first then run testTrimRefit, then trim the other edge again and run testTrimRefit again. Other than that it is a very nice surface tool. The tool doesnât give any feedback when it fails.
Yep - only one trim that crosses the entire U or V extents. Presumably it should be possible on either of two trims in the same direction - not sure beyond that.
-Pascal
that I was trying but that failed
Sorry to bump this old thread, but I couldnât find any more info on these commands with a google search. Are there any resources on them at this point in time? Or would someone mind showing how these tools are supposed to be used in a video? If they are still in the WIP version, that is. 
Test commands are usually not intended for general use. Some test commands become regular commands, sometimes with different names. Some test commands are incorporated into other regular commands. Some test commands just disappear.