Plugin to create all possible lines between points

liquid98

Hi,

My first question:

I have a set of construction points, which coordinates I want to catch in an Array.
How do I do that?

Second question:

I want to draw al the possible lines to connect all the cpoints in that Array.

I think I have to use line = entities.add_line point1,point2

But how do I iterate through the couples in the array?

Examplearray = [A, B, C]

Gives me these three couples / lines:
AB
AC
BC

And of course BA CA and CB but these are duplicate lines..

But how to automate this process??

Thanxs for your input!

fredo6

@liquid98 said:

Hi,

My first question:

I have a set of construction points, which coordinates I want to catch in an Array.
How do I do that?

Second question:

I want to draw al the possible lines to connect all the cpoints in that Array.

I think I have to use line = entities.add_line point1,point2

But how do I iterate through the couples in the array?

Examplearray = [A, B, C]

Gives me these three couples / lines:
AB
AC
BC

And of course BA CA and CB but these are duplicate lines..

But how to automate this process??

Thanxs for your input!

For the first question, you have to tell how is the "set of construction point", i.e., is it a list of Point3d? if so, you get the [x, y, z] of a Point3d <pt> with pt.to_a
For the multi-connection, use that code


def messy_connect_points(entities, list_points)
   n = list_points.length - 1
   for i in 0..n
       pti = list_points[i]
       for j in i+1..n
           entities.add_line pti, list_points[j]
       end
   end
end

Fredo

sdmitch

if the construction points are in the model

mod = Sketchup.active_model
ent = mod.entities
sel = mod.selection
pts=[];#initialize the points array
#find all the construction points
ent.each{|p| pts.push p.position if p.is_a?(Sketchup;;ConstructionPoint)}
#draw all possible lines
for i in 0...pts.length-1
  for j in 1...pts.length
    ent.add_line(pts[i],pts[j])
  end
end

liquid98

Hi Sam and Fredo,

Thnx for your help! Exactly what I was after..

@Sam
pts=[];#initialize the points array
why the ; ??

Thnx

sdmitch

force of habit. the ; just seperates multiple statements on a single line. In this case the # is used to comment the remainder of the line.

liquid98

Sam,

Well, I'm supposed to know the use of the ; but i forgot..

Again thanx for your help. The Math part was easier than the constructionpointarraycreation.