Create Poly Line in a loop

Developers Ruby API
1

Dear Friends,
Would you please let me know how can I make a poly line (path) from series of points in a loop (for)?

Thank you in advance

2

The PolyLine objects are not yet exposed to the Ruby API.

Do you want a set of connect edges ?

If you need to use a for loop for calculating the point positions, then push the points into an array as you calculate them. Then afterward call the #add_curve() method as shown below.

pts = [ ORIGIN ] # A new array with the model origin as the 1st point

for i in 0..10
  x = i + 2
  y = x / 2
  pts << Geom::Point3d.new( x, y, 0 )
end

Once you have an array with points in it, you can just feed the array to the #add_curve() method.

model = Sketchup.active_model
ents = model.active_entities
ents.add_curve(pts)

dezmo is correct it’s the #add_curve method (not #add_edges.)

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3

Entities#add_curve-instance_method

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4

for j in 0…@st - 1
path = $ent.add_line @pt[j], @pt[j + 1]
end

This loop works but make separate lines and cannot use for path. How can I make one path with these series of 3d points?

5

As Dan and me posted above in an example and link:
Assuming @pt is already an array of Point3D’s

path = $ent.add_curve(@pt)

NOTE: AVOID USING GLOBAL VARIABLE ( starting with $ )

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6

Thank you so much for your help…

7

You are great!! Thank you so much for your help… following command solve my problem… path = $ent.add_curve @pt[0…@st]. Fortunately no need any loop.

8

Please do not use global variables.

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