New Skx Sub Forum

[Jim]

This is the first post in a new Ruby Sub-Forum called "Skx Extension Library"

Skx is a project to create an extension library for SketchUp's Ruby API.

My original intention was simply to organize all of the code snippets floating around the Ruby forum and on my computer, to document them, and to make them available as a versioned package so other scripts could take advantage of them. That remains one of the primary goals.

To facilitate collaboration (another primary goal), I set up the skx project on Google Code. Google Code was a mostly arbitrary decision selected because that is what some other people were using (citygen, SketchyPhysics, surdebug and others).

This forum is for documenting the design process and related discussions.

[Jim]

I might be able to help, but i've got a few questions like; can the snippets use variables other than just local variables (@close_point, etc.) ? If so, I've got a snippet called 'closest_point', that is used to find the closest point from an array of points, to the Point3d object ( a is a point3d object, b is an array of points. a.closest_point b). The issue is that it uses variables, and I don't know if they can or not.

Code: Select all

#  Created by •BTM on 16/06/09.
#

class Geom::Point3d
   def closest_point a
   point = self
      a.each do |e|
         if point != e
         dist = self.distance e
         @close_dist = dist if not @close_dist
            if dist <= @close_dist
            @close_dist = dist
            @close_point = e
            end
         end
      end
   return @close_point
   end
      
   
end

[thomthom]

Code: Select all

class Geom::Point3d
   def closest_point a
      point = self
      close_dist = nil # just init the variable here first - this should work.
      close_point = nil
      a.each do |e|
         if point != e
         dist = self.distance e
         close_dist = dist if not close_dist
            if dist <= close_dist
            close_dist = dist
            close_point = e
            end
         end
      end
   return close_point
   end
end

If you initialise the variable before the loop you can use then inside the loop and after the loop.

[•BTM]

Ah, thanks