[Plugin] Cloud.rb for SU6

Didier Bur · 5 Nov 2007, 00:15

RTFM

Gaieus · 5 Nov 2007, 00:16

@didier bur said:

RTFM

May I suspect what this means, Didier?

SchreiberBike · 5 Nov 2007, 00:16

@gaieus said:

May I suspect what this means, Didier?

I found a source to Read the Manual at: http://www.crai.archi.fr/RubyLibraryDepot/Ruby/Cloud.pdf

And I've got a question.
What data sources do you use for this? Are there terrain maps on the web in this format?

Gaieus · 5 Nov 2007, 00:17

@schreiberbike said:

I found a source to Read the Manual at: http://www.crai.archi.fr/RubyLibraryDepot/Ruby/Cloud.pdf

Yeah, it's right next to the script - as Didier noted above.

As for the input - use simple text files with the x,y,z coordinates of every single point entered into a line each.

The source of this data file... well, wherever you can get it. I enter my own measurements or use a survey station and get the data as a text file or anything.

This script is mainly for you to use your own data than for importing because by importing you can usually have your mesh already.

Fletch · 5 Nov 2007, 00:18

Didier, thank you for ALL your ruby scripts at your site... found a couple new ones I hadn't seen before.

you have a tiny glitch...
http://www.crai.archi.fr/RubyLibraryDepot/Ruby/Roof-v2-1.zip is missing the '.zip' in the link, so that it's a broken link. I just added the ".zip" to my address line, and it d/ls just fine.

thanks again for your site.
The pushpull multiple faces with 2 selected points is going to be my new favorite tool! It's just what I came here looking for!

Didier Bur · 5 Nov 2007, 00:18

Thanks Fletch,
Normally Rick Wilson's freebies links are redirecting you to Smustard as he requested. So the link is buggy twice. Will fix that asap.
Regards,

linea · 5 Nov 2007, 00:19

Didier. Just downloaded cloud.rb. I had not come across this script until now. I haven't worked with point clouds before but this could be brilliant for my work.

Thanks

Monotonx · 17 Oct 2008, 21:02

I have a Problem with a large point cloud:

I'm able to import the Points (round about 80.000) with your script but if I tell the script to triangulate the points my Pc hangs up (It's just to much point at once)

Is there a posibility or another script to mesh only a few points at once to prevent sketchup from hanging up?

I hope anyone can help me

greetings

Markus

Monotonx · 17 Oct 2008, 21:26

I tried to attach the text file with the model - but it was too large.

so i divided the koordinates into three separate files and also attached a zipped file with the point cloud as sketchup-file

first part of Koordinates

second part of Koordinates

third part of Koordinates

fourth part of Koordinates

all points as zipped sketchup file

TaffGoch · 18 Oct 2008, 02:20

Monotonx,

Before "Cloud" there was...

At the Ruby Library Depot (http://www.crai.archi.fr/RubyLibraryDepot/Ruby/en_geo_page.htm) there is a plugin named, "points_cloud_triangulation" that you need to download, and drop into your SketchUp "plugins" folder.
http://www.crai.archi.fr/RubyLibraryDepot/Ruby/points_cloud_triangulation.rb

You can use "cloud" to import the guidepoints, but skip the triangulation. Then, select only a portion of the the guidepoints, and triangulate with "points_cloud_triangulation." This plugin will permit you to complete the task in selected sections.

This ruby requires another rubyscript to function, "delauney2.rb" (but the link is broken.) Playing around, I found that it's misspelled. The correct download link is:
http://www.crai.archi.fr/RubyLibraryDepot/Ruby/delauney2.rb
(Also drop in the "plugins" folder.)

When you next start SketchUp, a new menu item will appear in the "Plugins" menu list -- "Triangulate points"

To use it, select a set of guidepoints then run "Triangulate points". I should caution you not to select too many points. I selected ~8,000 guidepoints, and it took over 15 minutes to parse through them. It was, however, successful at producing the edges and triangular faces, although some outer edge cleanup is required.

Might that serve your purpose?

Regards,
Taff

Gaieus · 18 Oct 2008, 05:15

Hi Markus,

You may have actually solved your problem already: dividing the text file into portions may also work.

However note that a mesh with 80,000 points (and the respective amount of edges and faces) will always kill your machine even after you succesfully create it.

Monotonx · 18 Oct 2008, 05:45

Thank you TaffGoch and Gaieus,

I'll try the Points_cloud_trangulation later (no time at this Moment ) But it sounds like this ist exactly what I'm looking for.

the mesh is a killer - I thougth something like that, but when I SEE the points, I'll get an Idea which point's I need, or I can delete evere second row and column By selecting them very simply. Doing things like this would be much more difficult for me with the text editor

Maybe this way I have a chance to get it "working" - I'LL give a post about how it works.

there could be (sometimes if someone ist willing to) a modification/upgrade to the existing cloud.rb, a "simplyfy mesh" routine. (easy-way: leave every scond point unused, great way: check which point are planar or nearly planar so it doesn't give much additional information )

but for now, I'm absolutely happy

thanks a Lot

Gaieus · 18 Oct 2008, 05:57

@monotonx said:

...there could be (sometimes if someone ist willing to) a modification/upgrade to the existing cloud.rb, a "simplyfy mesh" routine. (easy-way: leave every scond point unused, great way: check which point are planar or nearly planar so it doesn't give much additional information )

With another plugin by Didier it is easily possible:
http://www.sketchucation.com/forums/scf/viewtopic.php?f=180&t=11320

Monotonx · 19 Oct 2008, 08:31

Heey...

Finally It worked out with the Points_cloud_triangulation

...sure it's hell of a file now, and it's really not easy to work with it.
but THAT I have the model is, what counts for me at this moment.

I'll try to simplify the mesh with that terrain-reshaper, but I don't know if this is the right tool for this - I mean the terrain is already regular, but there are way to much lines and polygones to work fluent.

again - thank you all

Gaieus · 19 Oct 2008, 08:37

Well, with the reshaper it would be possible to set a less dense network of points which means smaller file size / better performance.

The overall appearance of the mesh would not change drastically.

Monotonx · 19 Oct 2008, 08:41

here some pics

Gaieus · 19 Oct 2008, 08:49

Well, that's a large one for sure!

Arkadiusz · 18 Dec 2008, 08:37

@Didier Bur
Great Work! Your scripts are very useful.

@TaffGoch
Thanks for helpfull info!

“Do not go where the path may lead; go instead where there is no path and leave a trail”

Btw, I'm looking for *.rb to approximate edge from cloud points.

SAnderka · 1 Feb 2010, 17:15

Just tried the plugin with both SU6 free and SU7 free, but after selecting a file (even example.dat provided by the author) in the "select points cloud file" dialog, nothing happens.

Are there any dependencies that I'm missing?

johnpa · 8 Feb 2010, 21:37

Take a look at this post and download the revised script and you should be good to go. The link to the script is in the post at the top of the thread.

http://forums.sketchucation.com/viewtopic.php?f=323&t=15807&p=209535&hilit=cloud#p209535

JP