@dave r said:

What is the "correct order"? How is that determined?

Thanks very much Dave!!, I now realize that it is indeed a bit of a shady definition!
I just meant that each polygon has a begin and an end-point and the "correct" order is getting the sequential line segments in that order. So for example for a polyline consisting of 3 line segments I would get 4 co-ordinates in order that makes up the polyline:

x1,y1 start line segment a
x2,y2 end line segment a, start line segment b
x3,y3 end line segment b, start line segment c
x4,y4 end line segment c

I think this is the only way to rebuild a polyline if all you have are the co-ordinates.

Regards
Michiel

I have asked this question before but I guess its now somewhere on the bottom of the pile and I have not had a response yet Before I abandon this idea I would like to give it one more try:

I need to draw polygons (trace a scaled map) and export co-ordinates in the correct order to a csv.
I found this great plugin from TIG (Export Vertices to CSV), which works fine, except it dumps the coordinates not by following the line segment order. I am trying to read the generated point file into a python script that redraws the polygon for me... but I get quite a mess this way...

Thanks in advance!
Michiel

Hi is there perhaps a way this plugin (or other) can export the co-ordinates of the polyline segments in the correct order? I am trying to reconstruct a polygon by loading in the co-ordinates from the csv, but I need them in the correct order. At the moment I am basically getting a point cloud

Thanks
Michiel

Does anybody know if there is a plugin to export a polygon to a csv file with the coordinates in the correct order? I found this great plugin from TIG (Export Vertices to CSV), which works fine, except it dumps the coordinates not by following the line segment order. I am trying to read the generated point file into a python script that redraws the polygon for me... but I get quite a mess this way...

Thanks in advance!
Michiel

@fredo6 said:

One possibility is to convert the original to Polyline, which will give you the sequence of control points. Indeed, make a copy of the original bezier curve before.

@mluy said:

wow, I am honoured to get a response from the great Frodo himself!, you are a absolute hero just wanted to say that.

But I am not quite sure what you mean, because if I convert the bezier curve to a polyline (which I did) I just get a polyline....where are the control points ?

oops initial response too fast I got it now!, thanks very much!!

oops too fast I got it now!, thanks very much!!

@fredo6 said:

One possibility is to convert the original to Polyline, which will give you the sequence of control points. Indeed, make a copy of the original bezier curve before.

wow, I am honoured to get a response from the great Frodo himself!, you are a absolute hero just wanted to say that.

But I am not quite sure what you mean, because if I convert the bezier curve to a polyline (which I did) I just get a polyline....where are the control points ?

@dave r said:

Usually I approach it from the other direction and create identifiable location for the control points of the Bezier curve. Would that be possible in your case?

Thanks Dave!
That would not work in my case as I want to trace a shape (imported image) and then I trying to adjust set the control points to get the shape I need

@dave r said:

Are you still using SketchUp 2015 Make as your profile indicates?

Oh I need to update that, I am using Sketchup pro 2019

Does anybody know how to get the co-ordinates of the control points of a Bezier curve?
I am using Fredo6 BZ_Toolbar and I have been unable to figure it out
Any help / tips appreciated, perhaps I need another plugin (which?) but I really like this one

Thanks!
Michiel

@pilou said:

You can resize your object by 1000
then use CleanUp by Thomthom it finds many problems and repears
Then Joint PushPull by Fredo for give a thickness

Then solid Solver by Tig

But despit of that seems there are always problems, too little surfaces, maybe intersect faces etc...

where does this object come from? An unfolding one ?...

Thanks Piloe, its the result of an intersection with two solids from a topographic survey but its a complete mess. I just spend 3 hours to do it manually and finally managed to get a clean solid (joint push pull V) I guess there is no easy way when you get a shape like this