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I am not 100% happy about the way the Compositions work.
(Assignment and Visibility).
The way Bricscad chooses Wall Directions by default, (inner/outer side),
is still pretty random for my purposes.
I could live much better with a simple strict rule, like, Walls outer side
will be always "left" along drawing axis. So you know you have to draw your
Walls in a clockwise manner - and if you need to draw it from right to left,
you will know that means the Wall is flipped and you have to flip
it back manually.
This is not my main issue, but it just means that Wall's Directions are
very likely flipped in the wrong way, which is the start situation when
talking about Compositions.
When assigning a Composition, that may mean that the Wall Thickness
has to change, it is very nice (!) that there is now the Highlighting of
Wall's Face that the Thicken Modification will originate from
(or to control in which direction the wall will extend)
plus the Flip Icons to change that "direction".
This feature is very important and I make great use of it.
(As there is #1. situation described above)
Unfortunately that will work only if "Display Composition" is OFF.
On the other hand, once you applied/changed your Compositions,
to be able to see/check Compositions Directions,
you will need "Display Composition" to be ON again.
I find it pretty tedious to switch "Display Composition" the way it is
(Selection loss, tedious Selection of related objects using
"Display Composition", ...)
Therefore, my main point :
I think there needs to be a "global", easy accessible,
"Display Composition" Switch
(While it can be argued if the current local setting needs to stay to
allow selective overwriting the global "Display Composition")
I want to either work in a low LOD workflow with Display OFF for
all elements or in a high LOD detail workflow whith Display ON
but very seldom in a mixture between ON+OFF elements anyway.
And I would like to switch that fast and offen so see it as a View
Mode switch - like between BIM and Modeling View Mode.
I think "displaying" Compositions (to better read your Model) and
"modeling" at Compositions Detail Level,
are 2 completely separate things.
I often want to see my Compositions to check if Wall directions are
accurate and such things, although I do'tn not want to edit Objects
at Detail Level, at the same time, at all.
It looks like all my Walls,
after changing (thickness by) Composition with the use of the
initial origin Face change option (as in #2.)
the Composition Plies are flipped - and I need to BIMFLIP again.
(Which fortunately only mirrors the Plies but keeps the Wall's location)
First I thought about Bricscad using another convention about how Plies
needing to be stacked in a Composition and I would do it wrong but
I see that also Bricscad Composition Templates use the upper side
of the Plies List as the Walls outer side.
So if there is a connection between Wall's overall Directions and
Composition's ply directions, which I think should be,
in my opinion, that linking currently works flipped.
About the Walls Composition usage in practice.
Normally you may start BIM at a lower LOD, like single Ply Compositions.
So at the beginning, Compositions my be just applied for better Wall
sorting and differentiating purposes, while LOD and Compositions
complexity may arise later.
That is when changes in Wall's Thicknesses and the need to control
the center from which the change in thickness expands.
(Otherwise you would need to relocate the Walls manually)
And that will mostly not concern interior Walls, as being mostly still
single-ply, "symmetric" Compositions or even the need to expand
from the Wall's middle Axis (which currently is not possible).
So it is mainly about exterior Walls, that may once have been single-ply
and now get an Insulation package.
In this common case,
I think the Wall should expand from the structural core - so (simplified)
originating from the Walls inner side.
So to make my point :
If I get it right, Bricscad prefers by default the outer Face, to expand
from, which I think is wrong or flipped.
What I stated in #4. a)
Beside my points above,
nevertheless, as long as there is no more detailed control when changing
Elements compositions, like Axis control left/middle/right + choosing from
which Ply, there will happen many situations when Walls need to be
In Apps where I have such Controls, I change elements Compositions
Or I just need to change my Compositions/Styles, which does open these
Controls, as being mandatory when Compositions Changes cause also
changes in thicknesses.
I seem to have problems with Walls being shorter than their widths.
(BIMCONNECT failing, Compositions flipped 90°)
I'm not 100% sure about that,
it may be that I did not use Polysolid to model these combinations, which
form kind of a Z-path (which Polysolid does correctly)
but it may also be that these "too short" Walls flipped their direction by 90°
by itself, after applying Compositions to them or when BIMIFYING.
Nevertheless, also trying to rotate them correctly later, I am not able to
BIMCONNECT them, although that geometrically would be possible.
Currently assigning Compositions to "rounded" Walls is pretty useless.
Even rounded Walls itself (and even Arcs in Polylines for Slab Extrusions)
cause nothing but problems for me (on Mac ?)
(Rejecting BIMCONNECT with other Walls, Inaccurate Thickness Display,
inability/corruption to BIMDRAG or PUSHPULL the curved Face,
lagging and crashing even when trying to BIMDRAG/PUSHPULL one of their
"non-rounded" Faces, ...)
So as long as that is the case, I would even prefer to prohibit rounded Walls
Better automatically convert these Ars into edgy n-Gons with a reasonable
curve resolution - without cluttering the amount of Wall numbers by keeping
these combined in any way as a single Wall.