Ohayo !
wanna ask about techincal aspects hiding behind cad modeling
what's the reason to have always a solid shape ? why can't be done a bool operation of a plane and a surface knowing the plane normals ?

I believe it's essentially for Print 3D : you must have a thickness different than "0"
so a solid and not a simple plane surface who can't exist in the reality! ;)

And some practical for know how cost some volumes of materials for building or what is the density of something! ;)

But in Moi you can make Boolean operations with plane, surface with thickness = "0" !

HI Tudor,

re:
> why can't be done a bool operation of a plane and a surface knowing the plane normals ?

That's because MoI is designed to try and not behave differently depending on which direction an open surface happens to have as the "positive" normal direction.

The booleans are based on working with solids. If you are working on all surfaces you should use the Trim command instead of booleans usually.

- Michael

ohayo
dragging points from a curve doesn't snaps to points of the same curve

Hi Tudor,

> dragging points from a curve doesn't snaps to points of the same curve

Yes, that's intentional to avoid having consecutive points get stacked up on top of each other too easily, such stacking degrades some of the mathematical properties of the curve and can cause problems.

- Michael

ohayo !
have a rectangle, wanna draw a small chamfer - at a good zoomout.
Q: It impossible draw without disabling snapping ? i'm asking about an option for snap distance !

Trim
t - trim add point
s - trim single segment ( can crash if not selected from object that was separated, idk how to fix)
added
c - join curves after deleting unwanted segments

fixed UnionJoin script
earlier opened surfaces where duplicating

Have you somewhere a repository of all your cool things ?

Hi Tudor,

re:
> ohayo !
> have a rectangle, wanna draw a small chamfer - at a good zoomout.
> Q: It impossible draw without disabling snapping ? i'm asking about an option for snap distance !

In general it's difficult to work on something where you're zoomed out so that it is too small on screen. It's good to zoom in in such situations so you have some room on screen to work with.

There is a setting though for how far your mouse cursor needs to be from a snap point for the snap to engage, that's under Options > Snaps > Object snap options > "Snap radius".

- Michael

i might forgot, but this should work after copy/paste with coordinate frame
moi.ui.alert(moi.ui.getLastOrientationPickerFrame().origin.x)

1. construction lines + align on surface + rect center
drag construction lines & place the first point, second point I think should be autoaligned to surface

2. pointpicker.addSnapPoint( startpt, moi.ui.getText('Closed') ) I dont see text toolbox- is any trick behind

Hi Tudor, re: #2:

> 2. pointpicker.addSnapPoint( startpt, moi.ui.getText('Closed') ) I dont see text toolbox- is any trick behind

When you call moi.ui.getText( 'textid' ); that looks up text in the current language's string table for the text of the given id value.

There is no id value for "Closed" so your call there is going to return an empty string.

To fix it you could just pass some text directly instead of calling moi.ui.getText(), or use a valid textid like 'Closed snap'.

- Michael

Hi Tudor,

re:
> 1. construction lines + align on surface + rect center
> drag construction lines & place the first point, second point I think should be autoaligned to surface

It's a bug where snap plane alignment is not happening when the base point is on a center object snap. I've got it on my list to get fixed up for v5.

- Michael

ohayo !
Wanna ask if in cad is such thing like keep same edge fillet distance (similar to subd will be bevel). I know there's pipe and cut, blend surfaces, but can this be done automatically ?
left - current fillet, right- desired

Hi Tudor, try the "constant distance" type fillet shape.

The regular one called a "rolling ball" fillet generates arcs all of the same radius, with the arc length being longer or shorter depending on the angle between surfaces.

The constant distance method makes the fillet rails to be a given distance apart from each other instead.

- Michael

it very often fails

Hi Tudor, yes unfortunately it's a pretty buggy area in the geometry library. It should work on the type of case that you showed though:



- Michael

ohayo
curves/lines -> merge. It should cut objects like one with circle, it doesn't

Hi Tudor, boolean difference seems to do what you want on #3 and #4, but seems to be buggy on #1 and #2, I'll put it on my list to investigate.

- Michael