[REQ] Random Profiles

sdmitch

If not yet existing

Drawn in Y, in first time without constaint in Y so just "raws"

In second time (if courageaous) with same constaint than in X so columns + raws

Here the possibilities drawn in X
[attachment=0:2m70jbmg]Random_profiles.jpg[/attachment:2m70jbmg]

Your example profiles don't appear to be very "random". "raws"? Perhaps you mean "rows".

The following code will generate a 10 X 10 X 10 random set of profiles.

for y in 0..10
 p=[]
 for x in 0..10
  p<<Geom;;Point3d.new(x,y,rand(10))
 end
 for i in 1..10
  ent.add_line(p[i-1],p[i])
 end
end

pilou

Yes Row

And yes not very randomly : just 45°, -45°, 0° and yes or not 90° permit from the start
For have curves like section's rivers, quiet valley ...

pilou

Hum
I have indroduced your code in the Webconsole by Jim Foltz
but seems nothing is made

Just an
@unknownuser said:

(eval):7:in ‘initialize’: undefined local variable or method ‘ent’ for #WebConsole:0x1d8be9d8

I have tried to use Ruby language in the past but it's not a language fluent for me alas!

sdmitch

I use Web Console also but I didn't include the first three lines where mod, ent, and sel are defined. Try this

mod = Sketchup.active_model
ent = mod.entities
sel = mod.selection

for y in 0..10
 p=[];z=5
 for x in 0..10
  case rand(3)
   when 0; z -= 1 if z > 0
   when 2; z += 1 if z < 10
  end
  p<<Geom;;Point3d.new(x,y,z)
 end
 for i in 1..10
  ent.add_line(p[i-1],p[i])
 end
end

pilou

Sure better

Problem : Start and End must be the same

Or better between each Start (on the Y) just the 3 possibilities 45°, -45°, 0°, (or 90° if enable)
Same for the Ends(on the Y)
Same for each segment(on the Y)

sdmitch

Added statement to make start=end

mod = Sketchup.active_model
ent = mod.entities
sel = mod.selection

for y in 0..10
 p=[];z=5
 for x in 0..10
  case rand(3)
   when 0; z -= 1 if z > 0
   when 2; z += 1 if z < 10
  end
  z = 5 if x==10#<<< to make start=end
  p<<Geom;;Point3d.new(x,y,z)
 end
 for i in 1..10
  ent.add_line(p[i-1],p[i])
 end
end

pilou

Cool but as I said in last post

that will great if from the first profile
Next Start, next vertex, next End on Y will take the 3 possibilities
for more smoothing forms

Here I have just take the first profile and rotate by 90° so too symmetric

sdmitch

Code added to vary start/end z

mod = Sketchup.active_model
ent = mod.entities
sel = mod.selection
start_z=5
for y in 0..10
 p=[];z=start_z
 for x in 0..10
  case rand(3)
   when 0; z -= 1 if z > 0
   when 2; z += 1 if z < 10
  end
  z = start_z if x==10
  p<<Geom;;Point3d.new(x,y,z)
 end
 for i in 1..10
  ent.add_line(p[i-1],p[i])
 end
  case rand(3)
   when 0; start_z -= 1 if start_z > 0
   when 2; start_z += 1 if start_z < 10
  end
end

pilou

This can't be exist on Y: too big

In fact the first profile gives a curve
then second will be made on the Y from this first result from each vertex
then third from the second etc...

pilou

Perfect!
and if the first random profile don't please just relaunch the script!
Bravo!

sdmitch

So each point on subsequent profiles should be determined like the starting Z.

mod = Sketchup.active_model
ent = mod.entities
sel = mod.selection
 p=[];z=5;y=0
 for x in 0..10
  p<<Geom;;Point3d.new(x,y,z)
  case rand(3)
   when 0; z -= 1 if z > 0
   when 2; z += 1 if z < 10
  end
  z=5 if x==9
 end
for y in 1..10
 for i in 1..10
  ent.add_line(p[i-1],p[i])
 end
 for i in 0..10
  p[i].y=y
  case rand(3)
   when 0; p[i].z -= 1 if p[i].z > 0
   when 2; p[i].z += 1 if p[i].z < 10
  end
 end
 p[10].z=p[0].z
end