Move groups with different measures?

pilou


model = Sketchup.active_model
entities = model.entities
selection = model.selection
groups = []
z=0

selection.each do |e| # update!
  # Skip all entities that aren't groups
  next unless e.is_a? Sketchup;;Group
  # Now we process the groups
     point = Geom;;Point3d.new 0,0,z
  t = Geom;;Transformation.new point
  # Apply the transformation
  e.transform!(t)
  z = z*2 + 100
end

Perfect (I put the z=z*2+100 at the end for have the first group of selection with no move)
Last thing I obtain 254 cm ( I suppose that is a conversion between inch/cm ?)
My first volume is at level z = 0 and I work in cm

TIG

Pilou

Do you want to move each of the selected groups by the same amount (my code - e.g. 100.mm) or by an ever changing amount ?

If you want it to change then you need to define how, and add this into the loop - e.g. z=1..... then loop... z += 2*z
exponential type increase !

If you are applying different offsets, and you have made the groups in order, then the increments will apply in that way; but it would be possible to 'stack' groups made at different times and the loop would process then in their made order, but not the 'stacked' order you want ! Perhaps you need to add in another test... for each of the group.bounds.min.z. which sorts them by their relative heights, so at least the groups array would be in the height order you expect...

pilou

@unknownuser said:

If you want 100mm type 100.mm

Yes! Works like a charm!
For my first one that was not like a true romance but with your help, ThomThom, Tig (yet a lot of cryptic for me , and the Chris tutorial and a dash of milk of Tod Burch
Many thx for the helps

Next will maybe an "explode view" of several groups
Just need to know position of a group

PS @ Tig Sorry but I had no chance with yours! (see previous page)
And yes I want any sort of increments so now I can have any sort of it! Thx!
Just play with parameters
I keep your group.bounds.min.z. trick in my mind!

eclaté.jpg

TIG

for a completely random offset try


selection.each do |e|
    next unless e.is_a? Sketchup;;Group
    ###point = Geom;;Point3d.new 0,0,(1000.mm * rand)
    ### offset in Z somewhere between 0m and 1m - 'rand' makes a random number 0><1
    point = Geom;;Point3d.new (1000.mm * rand),(1000.mm * rand),(1000.mm * rand)
    ### offset in all XYZ axes by 0 to 1m
    t = Geom;;Transformation.new point
    e.transform!(t)
end

Swap the ### between the different points = to see the effect

thomthom

The entities are not returned in their order in z height. You would need to sort the objects by their Z position before applying the transformations.

pilou

Before testing your new randomizer plug

I have a little problem
I have used "Grow" by Tig for make the "volume" on the left (50 groups), then my "Plug" Thomthomised
with a normal interval of course!
Seems there is something wrong somewhere
Groups are not recorded following the "grow" generation?

pilou

So i must use the Tig Advertissement more soon than I have expected

pilou

This group.bounds.min.z. can be found somewhere or the sorting of Groups must be forged again?
(nothing about sort, sorting in the API helping)

thomthom

Build a hash with the entities as the key and their Z posiiton as value and then sort the hash by the values.

pilou

Each groups has not a "time creation" trace board? So no need to remake a sorting ?
Seems I have re-open a new nightmare door

Chris Fullmer

Awesome Pilou! Keep it up, its looking great. You've got lots of good help around here.

Chris

TIG

Try something like...


zeds=[]
index=0
groups.each{|group|
   zeds.push(group.bounds.min.z, index)
   index+=1
}
zeds.sort!
sorted_groups=[]
zeds.each{|z|sorted_groups.push(groups[z[1]]) }
### sorted_groups is now groups sorted by Z

pilou

Does the group.bounds.min.z only valuable in SU 7?
Edit seems not

little try but seems I miss something (any doubt selection but the sorted_groups gives nothing on the screen)

model = Sketchup.active_model
entities = model.entities
selection = model.selection
groups = []
z=0
zeds=[]
index=0
groups.each{|group|
   zeds.push(group.bounds.min.z, index)
   index+=1
}
zeds.sort!
sorted_groups=[]
zeds.each{|z|sorted_groups.push(groups[z[1]]) }
### sorted_groups is now groups sorted by Z

sorted_groups.each do |e| 
  point = Geom;;Point3d.new 0,0,z
  t = Geom;;Transformation.new point
  e.transform!(t)  
  z =  z + 1000.mm
end

pilou

it's like a snowball on the top of the mountain

TIG

groups = [] then nothing set !!!
You emptied the groups array...
You need to fill it from the selection...

groups=[];selection.each{|entity|groups.push(entity) if entity.kind_of?(Sketchup;;Group)}

pilou

another try found: undefined method ‘[]’

model = Sketchup.active_model
entities = model.entities
selection = model.selection

z=0
zeds=[]
index=0
sorted_groups=[]

groups=[];selection.each{|entity|groups.push(entity) if entity.kind_of?(Sketchup;;Group)}

groups.each{|group|zeds.push(group.bounds.min.z, index)
   index+=1
}
zeds.sort!
zeds.each{|z|sorted_groups.push(groups[z[1]]) }
### sorted_groups is now groups sorted by 

sorted_groups.each do |e| # update!
  # Now we process the groups
  point = Geom;;Point3d.new 0,0,z
  t = Geom;;Transformation.new point
  # Apply the transformation
  e.transform!(t)
  z = z + 100.cm
end

thomthom

Is that the only error message you get?

@unknownuser said:

it's like a snowball on the top of the mountain

You're hooked now! No way back!

TIG

Here's some tweaked code

def test()
    model = Sketchup.active_model
  model.start_operation("Move in Z")
    entities = model.entities
    selection = model.selection

    zeds=[]
    index=0
    sorted_groups=[]

    groups=[];selection.each{|entity|groups.push(entity) if entity.kind_of?(Sketchup;;Group)}

    groups.each{|group|zeds.push([group.bounds.min.z, index])
       index+=1
    }
    zeds.sort!
    zeds.each{|z|sorted_groups.push(groups[z[1]]) }
    ### sorted_groups is now groups sorted by

    z = 0.0
    sorted_groups.each do |e| # update!
      # Now we process the groups
      t = Geom;;Transformation.new(Geom;;Point3d.new(0,0,z))
      # Apply the transformation
      e.transform!(t)
      z = z + 100.cm
    end
    
  model.commit_operation
  return nil
  
end#def

Runs as ' test'.
I made a typo - it needed an array [] of two items adding to zeds: zeds.push([group.bounds.min.z, index]) not two 'loose' items as in zeds.push(group.bounds.min.z, index).
I made your z = 0 into z = 0.0 as it needs the number as a float, not an integer...
Removed 'point' variable and set the point definition directly inside the transformation - not necessary but fewer variables...
I added a model.start_operation("")...model.commit_operation so it becomes a one step undo.
I added return nil at end so the Ruby-Console doesn't get clogged with info...

Tested it - it works...

pilou

Seems indeed that some corrections were necessary
This time works like a charm! Excellent! TIG + Thomthom! Bravo!
I will see all that more in detail for learn this little cryptic language !
Very funny plug!
For the next Pilou's foolish...
...I need to know the "centroïd" (xyz) of a "bounding box's group"
Here of course without different measure, just for little test! (click image)

TIG

@unknownuser said:

...I need to know the "centroïd" (xyz) of a "bounding box's group"

centre_point=group.bounds.center

See http://code.google.com/apis/sketchup/docs/ for all these details