[Plugin] VolumeCalculator v1.8

[TIG]

Here's v1.8. For some reason it's just started to Bugsplat on my new PC (Vista). It didn't before ! This new version avoids a splat since it has a two step undo. The splat seems to come from after it's intersected the volume slicing disc group to make entities inside another vol group and then it is trying to erase that disc group within the same commit/undo as the rest. By making 2 undo steps it doesn't splat - go figure ?

[Tobobo]

Thanks

[AdamB]

This all seems quite a complex way of getting the volume.. The following analytic approach works nicely.

Code: Select all

def calculateVolume(container)
   
   volume = 0
   for face in container
      next unless face.kind_of? Sketchup::Face

      volume += (2 * face.area * (face.vertices[0].position.dot face.normal)) / 6      
   end
   volume
end

[AdamB]

Doh. And you need to have Geom::Point3d#dot defined - (which is beyond me why it isn't as standard)

Code: Select all

class Geom::Point3d
   def dot(v)
      self.x * v.x + self.y * v.y + self.z * v.z
   end
end