topic Re: how to create a fill section for a (morph) object in Libraries & objects

how to create a fill section for a (morph) object

Anonymous — Fri, 14 Apr 2017 18:28:42 GMT

hey,

i created an object through use of gdl, and used the definition of a morph to define it. Now i would like to add a section fill to the object. However this seems to be impossible (the morph is defined by verts/edges/polygons and doesn't contain a mass). When using the SECT_ATTRS command it won't show anything.

In an attempt to "solve" this i thought of using the MODEL SOLID command first before using the SECT_ATTRS, but without success.

So my question is: is it possible to transform the morph to a solid object and give it a section fill?

or is this impossible to do and i'll have to redefine the whole object using primitives

thank you

Re: how to create a fill section for a (morph) object

Bruce — Fri, 14 Apr 2017 22:42:45 GMT

It is possible. Near the beginning of the script created by ARCHICAD is a "sect_attr" command. This is where the cut fill is set.

You will also find a "material" and "pen" command too. Be aware that the material and pen are set further down the script as well. If your morph only has the one pen and material, you can get rid of these other commands, and just keep the material and pen settings at the beginning.

Re: how to create a fill section for a (morph) object

Ruben V — Mon, 17 Apr 2017 19:38:17 GMT

Does the Morph, used for the GDL-object have to be 'solid' to achieve this?

Re: how to create a fill section for a (morph) object

Bruce — Mon, 17 Apr 2017 20:21:29 GMT

The material and pen settings will still work, but if an object is not solid, by definition, it will have no section fill. So yes, the morph needs to be solid.

Re: how to create a fill section for a (morph) object

Ruben V — Mon, 17 Apr 2017 22:37:03 GMT

How do you mean "by definition"?

If you leave out a the definition for one of the six faces of a cube, it won't be solid, but what if you've defined a pyramid-like form, with multiple (layered) materials, and al faces show properly in 3D, how can this 'become' non-solid?

What happens in my case is that when starting with any morph for a GDL-object, everything is fine. Combining multiple morphs and/or substituting multiple values with variables? Things start going wrong in the field of fills...

Re: how to create a fill section for a (morph) object

Bruce — Mon, 17 Apr 2017 23:29:11 GMT

'by definition' is just a turn of phrase - not a coding expression.

I don't know how you're trying to combine multiple morphs. If it was me, I would either:

1. If the separate morphs are to all be joined in the final geometry, then use boolean operations, and check morph solidity, prior to converting to GDL.

2. If separate geometries, then I would save them as separate GDL objects, each one called by the main object script.

I would use a CALL from the main object in any case, as it keeps the code cleaner.

Re: how to create a fill section for a (morph) object

Piotr Dobrowolski — Tue, 18 Apr 2017 07:34:56 GMT

Regarding morphs to GDL:

Create the final geometry (-ies if more of morphs)
As Bruce said (clean, solidity check and so on)

move the geometry to the base point as desired....

now tricky:

right click and create morph from selection
and reset textures

(those avoid the unneeded translations in the final script)
if more morphs and not wiling to separate - ID all parts so to find them in the generated script.

Save to gdl...now You can remove the all translations and del's to optimize the script...of course do jumps etc to get it cleaner.
(remove XXXe-YYY...if possible to speedup)

Best Regards,
Piotr

Re: how to create a fill section for a (morph) object

Ruben V — Tue, 18 Apr 2017 11:14:54 GMT

thanks for this clear overview!

Re: how to create a fill section for a (morph) object

Ruben V — Thu, 18 May 2017 09:34:24 GMT

Still working on this problem...

Actually created a complex form using VERTS, EDGES and PGONS...

Seems to me that only primitives and PRISMS behave well regarding the 'solid 3D' and section Fill issue...

! TEST-script

model Solid

Material choose_surf
FILL hatch
sect_fill hatch,19,101,1

GOSUB 100
GOSUB 200


END

100:

Group "slab1"

base

! VERTS----------------

!ground plain
VERT 0,0,0					!#1
VERT 1,0,0					!#2
VERT 1,1,0					!#3
VERT 0,1,0					!#4

!vertical plains
vert 0,0,0					!#5
vert 1,0,0					!#6
vert 1,0,0.5				!#7
vert 0,0,0.5				!#8

vert 1,0,0					!#9
vert 1,1,0					!#10
vert 1,1,0.5				!#11
vert 1,0,0.5				!#12

vert 1,1,0					!#13
vert 0,1,0					!#14
vert 0,1,0.5				!#15
vert 1,1,0.5				!#16

vert 0,1,0					!#17
vert 0,0,0					!#18
vert 0,0,0.5				!#19
vert 0,1,0.5				!#20

!intermediate plain
VERT 0,0,0.5				!#21
VERT 1,0,0.5				!#22
VERT 1,1,0.5				!#23
VERT 0,1,0.5				!#24

!EDGES-----------------

!ground plain
EDGE 1,2,-1,-1,0			!#1
EDGE 2,3,-1,-1,0			!#2
EDGE 3,4,-1,-1,0			!#3
EDGE 4,1,-1,-1,0			!#4

!vertical edges
EDGE 5,6,-1,-1,0			!#5
EDGE 6,7,-1,-1,0			!#6
EDGE 7,8,-1,-1,0			!#7
EDGE 8,5,-1,-1,0			!#8

EDGE 9,10,-1,-1,0			!#9
EDGE 10,11,-1,-1,0			!#10
EDGE 11,12,-1,-1,0			!#11
EDGE 12,9,-1,-1,0			!#12

EDGE 13,14,-1,-1,0			!#13
EDGE 14,15,-1,-1,0			!#14
EDGE 15,16,-1,-1,0			!#15
EDGE 16,13,-1,-1,0			!#16

EDGE 17,18,-1,-1,0			!#17
EDGE 18,19,-1,-1,0			!#18
EDGE 19,20,-1,-1,0			!#19
EDGE 20,17,-1,-1,0			!#20

!intermediate plain
EDGE 21,22,-1,-1,0			!#21
EDGE 22,23,-1,-1,0			!#22
EDGE 23,24,-1,-1,0			!#23
EDGE 24,21,-1,-1,0			!#24

!PGONS------------------

!ground plain
PGON 4,0,-1,1,2,3,4

!vertical plains
PGON 4,0,-1,5,6,7,8
PGON 4,0,-1,9,10,11,12
PGON 4,0,-1,13,14,15,16
PGON 4,0,-1,17,18,19,20

!intermediate plain
PGON 4,0,-1,21,22,23,24


endgroup

placegroup "slab1"

return

200:
Group "slab2"

base

! VERTS----------------

!intermediate plain (overlapping)
VERT 0,0,0.5					!#1
VERT 1,0,0.5					!#2
VERT 1,1,0.5					!#3
VERT 0,1,0.5					!#4

!vertical plains
vert 0,0,0.5					!#5
vert 1,0,0.5					!#6
vert 1,0,1						!#7
vert 0,0,1						!#8

vert 1,0,0.5					!#9
vert 1,1,0.5					!#10
vert 1,1,1						!#11
vert 1,0,1						!#12

vert 1,1,0.5					!#13
vert 0,1,0.5					!#14
vert 0,1,1						!#15
vert 1,1,1						!#16

vert 0,1,0.5					!#17
vert 0,0,0.5					!#18
vert 0,0,1						!#19
vert 0,1,1						!#20

!top plain
VERT 0,0,1						!#21
VERT 1,0,1						!#22
VERT 1,1,1						!#23
VERT 0,1,1						!#24

!EDGES-----------------

!intermediate plain (overlapping)
EDGE 1,2,-1,-1,0			!#1
EDGE 2,3,-1,-1,0			!#2
EDGE 3,4,-1,-1,0			!#3
EDGE 4,1,-1,-1,0			!#4

!vertical edges
EDGE 5,6,-1,-1,0			!#5
EDGE 6,7,-1,-1,0			!#6
EDGE 7,8,-1,-1,0			!#7
EDGE 8,5,-1,-1,0			!#8

EDGE 9,10,-1,-1,0			!#9
EDGE 10,11,-1,-1,0			!#10
EDGE 11,12,-1,-1,0			!#11
EDGE 12,9,-1,-1,0			!#12

EDGE 13,14,-1,-1,0			!#13
EDGE 14,15,-1,-1,0			!#14
EDGE 15,16,-1,-1,0			!#15
EDGE 16,13,-1,-1,0			!#16

EDGE 17,18,-1,-1,0			!#17
EDGE 18,19,-1,-1,0			!#18
EDGE 19,20,-1,-1,0			!#19
EDGE 20,17,-1,-1,0			!#20

!top plain
EDGE 21,22,-1,-1,0			!#21
EDGE 22,23,-1,-1,0			!#22
EDGE 23,24,-1,-1,0			!#23
EDGE 24,21,-1,-1,0			!#24

!PGONS------------------

!intermediate plain (overlapping)
PGON 4,0,-1,1,2,3,4

!vertical plains
PGON 4,0,-1,5,6,7,8
PGON 4,0,-1,9,10,11,12
PGON 4,0,-1,13,14,15,16
PGON 4,0,-1,17,18,19,20

!top plain
PGON 4,0,-1,21,22,23,24


endgroup

placegroup "slab2"

return

this gives a 'non solid' object without a 2D fill in the section view...

What am I missing? Should it also be fully scripted in 2D or should a standard PROJECT2 suffice?

Re: how to create a fill section for a (morph) object

Ruben V — Thu, 18 May 2017 09:35:17 GMT

2D view (section)

Re: how to create a fill section for a (morph) object

Ruben V — Thu, 18 May 2017 09:36:14 GMT

the GSM test-object (complete object is much more complex, parametric and so on...)

Re: how to create a fill section for a (morph) object

Ruben V — Fri, 26 May 2017 08:01:02 GMT

Nobody?

I understand the 3D script quite well, but the 2D scripting is still somewhat mysterious... Does every object need a full 2D script?

Any tips to understand this better (help files, guides, ...)?

Thanks (and apologies for bumping, but I really want to finish this object...)

Re: how to create a fill section for a (morph) object

Barry Kelly — Fri, 26 May 2017 08:06:48 GMT

I haven't had a look at this but just wanted to point out that a section view is not a 2D view.
Sections and elevations show what is in your 3D script.
The 2D script is only for the plan view.

Barry.

Re: how to create a fill section for a (morph) object

Ruben V — Fri, 26 May 2017 08:10:13 GMT

Thx for the reply Barry!

that is what I thought, and that is why I figured out that the reason for not seeing a section fill has to do with the object not being 'solid'...

So bottom line: are only prisms and primitives "capable" of being solid within GDL?

Re: how to create a fill section for a (morph) object

Erwin Edel — Fri, 26 May 2017 08:34:41 GMT

I think your script is missing some... BODY (yeahhhhhhh)

All jokes aside, take a look at the BODY command. It should combine all those primitives into a solid, if memory serves. GDL reference guide page 139 and onwards.

Re: how to create a fill section for a (morph) object

Barry Kelly — Fri, 26 May 2017 08:36:26 GMT

B.E.A.T. wrote:
Thx for the reply Barry!

that is what I thought, and that is why I figured out that the reason for not seeing a section fill has to do with the object not being 'solid'...

So bottom line: are only prisms and primitives "capable" of being solid within GDL?

Primitives are only surfaces so unless they form a closed form they can not be solid.

I just created a couple of quick morphs and deleted the face on one.
This of course creates an empty box.
When save as an object the closed one is solid but the empty box is not.

If you look I the GDL manual all the 3D shapes can be solid but the trick is you must give the MODEL SOLID command before scripting them.

You can also make them MODEL SURFACE (in which case they will be empty inside) or MODEL WIRE (in which case they will just be edge lines).

The primitive elements are just 2D planes but if put together to form a fully enclosed shape they can be solid - but only with the MODEL SOLID command first.

Hope this helps a bit.

Barry.

Re: how to create a fill section for a (morph) object

Ruben V — Fri, 26 May 2017 15:20:28 GMT

Great info guys! Will test as soon as possible!

Barry: I did similar tests, but didn't find the piece of cod that made the difference

Erwin: the actual script is much longer and had the "body" command. I probably made a misstaken in it somewhere...

PS: wonderkind how the BM-option in GDL for AC21 will simplify the representation of objects in 2D/3D...