Select all faces facing a road

[ryangarnett]

Hello All,

I was wondering if there is a way, or a plugin, that will select all faces that face a road. For example, if I have a series of rowhouses that face a road, is there a way to just select the road facing faces? I would be ok with drawing a temporary line that would represent the road, if that is needed for the selection process. I have attached an image of the sample rowhouses and the road orientation.

Thanks...

---

[sdmitch]

I imported your image and drew the outline of the row houses, pushpulled the up, drew a single generally down the road, selected it and ran the following script

mod = Sketchup.active_model
ent = mod.active_entities
sel = mod.selection
edg = sel.first;sel.clear
faces = ent.select{|f| f.class==Sketchup;;Face}
for f in faces
 fp = f.bounds.min
 pp = fp.project_to_line edg.line
 norm=f.normal;vec=fp.vector_to pp
 sel.add f if norm.angle_between(vec) < 45.degrees
end

which produced this result where only the front faces are selected.

[ryangarnett]

Thats awesome. Thank you. I am going to test this.

Thanks again.

[ryangarnett]

Did you run this from the Ruby Console? I haven't run scripts within SU before, so this may be a really dumb question.

[sdmitch]

No not the Ruby Console but from Ruby Web Console which is a plugin that opens a window that allows you enter and execute code.

[ryangarnett]

Thank you. I was doing that with no results, but it was because my buildings are Groups. I suppose I will have to ungroup them in order to select the face?

Thanks again.

[mitcorb]

Good job, Sam:
I think you might be dangerous.

[sdmitch]

Dangereous? You have no idea.

Ryan, I can add code so groups and/or components can be checked. The code previously posted was just a quick and dirty effort to show how it might be done.

[ryangarnett]

Thank you Mitch, I really can't thank you enough.