Using add_line to automatically create a new face

[ziocleto]

Hi all,

first message here, nice to meet you all. I'm a newbie with sketchup but ok at programming.
Now my question is:

let's say I have built a piece of geometry, which is beautiful,

From Sketchup UI:
Adding just 1 line (from point A to point B) skectchup auto-generates a new polygon.

From Ruby script API:
Using the same points A,B and using entities.add_line ... or add_edges etc there is indeed a line appearing in the model but it doesn't auto-generate the polygon.

How can I auto-generate a polygon from the same configuration in the Ruby API?

Cheers

[TIG]

entities.add_face(args)
Where 'args' is a variety of things - e.g. a list or an array of [ordered] vertices or points or edges...
You might get those from a polygon/circle or your own added edges: but with points the edges are generated by the passed array.
http://www.sketchup.com/intl/en/developer/docs/ourdoc/entities#add_face
To make all faces that an edge can support, try using edge.find_faces
There are many ways to achieve what you want...
It depends where you start...

[ziocleto]

Hi TIG,

I've tried entities.add_face(args), which is how I create geometry normally. But the problem I have is more subtle.
It's the different behaviour between adding a line in sketchup (UI from mouse) and adding the same line from API call.

If I draw the same line with the same points in sketchup (UI from mouse) on that particular piece of geometry it adds automatically a face (polygon), which is the intended result and it's correct.

If I call entities.add_face(edge) from ruby API either I get an error (too few parameters, at least 3 edges) or if I use entities.add_line(pointA, pointB) or entities.add_edge(pointA, pointB) it draws a line/edge but fails to create the face (polygon), which is not the same behaviour that I have if I do it manually with the mouse.

So is there a soft of global function to set to automagically create faces in those circumstances form API?

[ziocleto]

Sorry it looks like it's all working fine now.
I'm not quite sure what triggered it work maybe quitting sketchup and reloading it after a long session fixed it.

[TIG]

To repeat from my previous post...
To make all faces that an edge can support, try using edge.find_faces
If that edge can form a face [or faces] then the face[s] get added to the same context...

[ziocleto]

Thanks I've missed that edge.find_faces, it works great.
I think the naming put me off as I wasn't expecting that it will also add faces, I just thought it was going to find potential faces, I think it should may be renamed: find_and_add_faces just for clarity.