How Do I Script Pushing a Face To The Opposite Side of a Box?

Developers Ruby API
19

Sorry, it was a “boo-boo” on my part. I did not know you would be inside a group.
When this is true, the instance path array returned by model.raytest has more than 1 member in it, so [0] cannot be used because it assumes only 1 member in the array.

This should explain it better …

# encoding: UTF-8

module Majid866
  module BoxTest

    class Box

      def activate
        @mod = Sketchup.active_model
        # Define 4 points:
        pts = [
          [0, 0, 0],
          [2, 0, 0],
          [2, 10, 0],
          [0, 10, 0]
        ]
        # Make a group
        grp = @mod.active_entities.add_group
        face1 = grp.entities.add_face(*pts)
        # Pushpull into 3D:
        face1.pushpull(-10)
        # Draw a face to select:
        pts = [
          [2, 2, 2],
          [2, 8, 2],
          [2, 8, 8],
          [2, 2, 8]
        ]
        face1 = grp.entities.add_face(*pts)
        instance_path = Sketchup::InstancePath.new([grp])
        @mod.active_path= instance_path
        Sketchup.status_text = "Choose a face ..."
        @state = 1
      end

      def deactivate(view)
        view.invalidate
        Sketchup.status_text = ""
      end

      def suspend(view)
        view.invalidate
        Sketchup.status_text = ""
      end

      def resume(view)
        view.invalidate
        Sketchup.status_text = "Choose a face ..." if @state == 1
      end

      def onLButtonDown(flags, x, y, view)
        # @mod is set as the active model
        # Select face
        input = Sketchup::InputPoint.new
        input.pick(view, x, y)
        #@model.active_path = input.instance_path.valid? ? input.instance_path : nil
        face1 = input.face
        if face1 && face1.is_a?(Sketchup::Face)
          Sketchup.status_text = ""
          @state = 2
          push_through(face1)
        end
      end ### onLButtonDown()

      def push_through(face1)
        # Given a face referenced as: face1
        pt1 = face1.outer_loop.vertices[0].position
        # Fire a ray in the reverse direction of face1's normal vector:
        result = @mod.raytest( [ pt1, face1.normal.reverse ] )
        # Check the result. nil if failure:
        if result
          # The point that the ray hit:
          pt2 = result.first
          instance_path = result.last
          # The face that the ray hit:
          puts "the result object: #{instance_path.last.inspect}"
          if instance_path.last.is_a?(Sketchup::Face)
            face2 = instance_path.last
            # Distance between pt1 and pt2 (on face2):
            dist = pt1.distance(pt2)
            # PushPull in negative direction:
            face1.pushpull(-dist)
          end
        end
      end ### push_through()

    end # class Box

    unless defined? @loaded
      @loaded = true
      UI.menu("Plugins").add_item("Box") {
        Sketchup.active_model.select_tool(Box.new)
      }
    end

  end # module BoxTest
end # module Majid866
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