"Scaled array"

[museummaker]

I was working on a model and found myself drawing (for lack of a better name) a scaled array. Where a component repeats but linearly gets smaller each time it copies.

Attached is a simplified picture, you see this type of construction in cranes, etc.


I ended up doing it manually but I wondered if a ruby existed that could do a copy / scale / array type action?

[mitcorb]

Check out Grow by TIG. The examples I have seen from Pilou in this forum appear to be similar. However, I do not currently have this plugin, so I don't know if it will "ungrow".
This is based on the premise that you want to keep the data as components.
Don't worry someone else will have your answer directly.
mitcorb

[pilou]

Grow by TIG makes maybe not that you want but another thing

Seems you can make something also with Protrude by Jim Foltz

[pilou]

Grow makes the trick but you must add another plug for align drop objects! Align by Didier Bur
After the Scale
x = 0.8
y = 0.8
z = 0.8
because the Z Spacing don't accept a coefficient but just a value in cm

Maybe Tig can make something
Another plug must be created "Drop" on an existing object
Seems Didier Bur has a drop inside Spray tool but...

align.jpg

[museummaker]

Thank you for the tips.

I have been experiementing and quite get the perfect results.

It is helpful and faster than doing it by hand but still end up tweaking things.

I will continue to explore what these great rubys can do. Always things to learn.

[TIG]

Try changing the order of operations - scale then move then rotate, move then scale then rotate etc... This will produce differing results

[pilou]

How change order as all is in the same dialog box???
Sorry but seems impossible or I miss something for the Duh thread

Seems that the Zspacing accepting a % will be very cool?

I have the 1.0 20070207

[TIG]

There is a separate dialog at the end asking for 'order of operations'...

The latest version of 'Grow' is now available for download here viewtopic.php?p=324331#p324331

[pilou]

Indeed that is a big Duhduh
I had a very old version!
So I must learn your new opus

[pilou]

Ok that works like a charm
except that we must find first the "Growth point"!!!
the "bottom point base" of the troncated crossing edges top Pyramid!

Maybe this can be automatic because in this case its' easy to find it but in case of complex form?
Or biggest volume?

Mr TIG it's your turn

[utiler]

Gee, I'm glad i stumbled on this; I like Pilou had an old version....TIG, is this only relatively new? I just went to http://www.crai.archi.fr/RubyLibraryDep ... i_page.htm and the old one still downloads.....

TIG, Have you produced a instructions sheet with this latest version? I am having trouble executing what i want to do. I seem to be confused as the the 'X' and 'Y' planes....
I assume 'X' is red direction; left and right,
'Y' is green direction; up and down the screen,
and
'Z' is obvious.

When I rotate a vertical ['Z' plane] object around what i think is the RED direction it actually rotates it around the GREEN...['Y']

Also, TIG, can you give a little detailed explanation of the order of parameters...?
I have been getting an awful lot of Bugspats!!!!

Don't get me wrong, I think once I get the concept of it I will have found my new favourite plugin!!!

[pilou]

@Utiler
Z Is not obvious, with it your model goes in the 3D space up & down!
there is a little help text inside the code plug! Open it

When I rotate a vertical ['Z' plane] object around what i think is the RED direction it actually rotates it around the GREEN...['Y']

It's around the BLUE AXIS

Order gives you the natural order of transformations

About the first problem seems you can't oblige to have 80% for have perfect fit if you don't know the other X,Y,Z measures!
it's depending of the measure of the first start volume!
See my example above! I have 50% for this one (of course with my start measures volume)


My regulates and don't forget the Growth point position (see image above)
nb copy 3
X spacing = 0
Y spacing = 0
Z spacing = 100 cm
Scaling = Yes

Xspacing scaling = 1
Yspacing scaling = 1
Zspacing scaling = 0.5

Xcopy scaling = 0.5
Ycopy scaling = 0.5
Zcopy scaling = 0.5

(all exponential+ by default)

Move Scale Rotate order (or Move Rotate Scale as the is no rotation in this one)

[utiler]

Thanks Pilou,
I believe Z is always vertical [blue axis in SU]. If the ground plane is the ground then it makes sence to me that Z [blue axis is vertical....

See the simple Palm tree attached.

GrowTest01.png

Say I want to rotate copy and move the palm fron as noted on the attached image. Still getting weird outcomes when I try to do so...

thanks in advance.

[pilou]

Something like this?

[utiler]

No, Pilou. As a Palm fron grows [pardon the pun], it faces the sky with it's flat side facing up. Sometimes, slightly rotated but for the purpose of the exersice, lets keep it simple....
This is what i mean.

GrowTest02.png

Then copy and rotate various frons to thicken up the folage...

GrowTest03.png

Then do a little 'Fredo' bending....

GrowTest04.png

So thats what i want to do with grow, however I just did this example manually...
Skippy attached FYI...
Thanks for your help with this idea, Pilou, much appreciated!!

[pilou]

Ok I see
Maybe monday a result

[utiler]

Thanks Pilou, look forward to your reply..

[pilou]

Maybe this
But in fact all gives cool results just try different little variations
Palm's pull up is given by negative value
Here with these regulates (click image)

palm1.jpg

Palm2.jpg

[utiler]

Pilou, My Grow dialouge Box looks a little different.... older or newer?

[utiler]

Still not working....
Not getting the same result as you even though I am imputting the same data...

Ready to un-install.

[pilou]

You have an older version!
The last version were in this same thread always by TIG

[utiler]

Damn!
I hate it when i feel amateurish...
Thanks Pilou, I think I am on the right track now. I will post some updates later.

Thank you kindly for your persistence.

[utiler]

Ok, I have loaded the new 2.1 version...

Did a little axis directions text [see attached.] It eems that the X axis directions are back to front. I would have thought that the postive directions would have been forward and the negative direction would be backwards....

Grow_-_AxisDirections1.png

Also, rotations around the Z axis are anti-clockwise. I thought it makes sense to have postive rotations clockwise and negative rotations anticlockwise.... [see also attached]

TIG, is there any reason for this?

Eitherway, I think i have it worked out.

[hsjzyangbin]

HI,TIG,i wish the picture just like show

[TIG]

HI,TIG,i wish the picture just like show

You need to experiment with the 'Growth Point' origin in different places ?

[thomthom]

HI,TIG,i wish the picture just like show

hm... I wonder if there is a copy+rotate plugin out here already...

[TIG]

My Grow.rb already does this - there is an example of how to make a helical staircase in its threads...

[thomthom]

My Grow.rb already does this - there is an example of how to make a helical staircase in its thread...

I'm not finding it easy to find it - is it this? viewtopic.php?f=180&t=20195&p=168380&hilit=+grow#p168380

It'd be best if it was in a thread by itself and not buried inside another thread.

[TIG]

Grow.rb is a pretty old thing - probably predates the Forum !
It's available from Didier's Depot and if you search by author [TIG] and 'Grow' there are several threads about it where I uploaded a version for convenience, there are also examples in some threads...
Perhaps we could start a new thread to resurrect it - next week ?

[thomthom]

Perhaps we could start a new thread to resurrect it - next week ?

That would be good.
Didier and Fredo had/has some old versions laying around as well. I noticed the last week several users seemed to have been downloading them instead of the new versions - despite noticed about newer versions. So I wanted to do a sweep of the plugin section and remove old versions and lock old obsolete threads. With the permission of the authors - in case they deliberately left them out there for legacy reasons.