Module: Floorplanner::ColladaExport

Included in:
Design
Defined in:
lib/floorplanner/collada_export.rb

Constant Summary collapse

DESIGN_QUERY = 
"/project/floors/floor/designs/design[id='%s']"
ASSET_QUERY = 
DESIGN_QUERY+"/assets/asset[@id='%s']"
ASSETS_QUERY = 
DESIGN_QUERY+"/assets/asset"
OBJECTS_QUERY = 
DESIGN_QUERY+"/objects/object"

Instance Method Summary collapse

Instance Method Details

#assets ⇒ Object 



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# File 'lib/floorplanner/collada_export.rb', line 37

def assets
  return @assets if @assets
  @assets = {}
  @xml.find(ASSETS_QUERY % @design_id).each do |asset_node|
    asset_id = asset_node.attributes['id']
    name  = asset_node.find('name').first.content
    url3d = asset_node.find('url3d').first
    next unless url3d
    url3d = url3d.content

    # TODO: store asset bounding box
    asset = Floorplanner::Asset.get(asset_id,name,url3d)
    next unless asset
    @assets.store(asset_id, asset)
  end
  @assets
end

#objects ⇒ Object 



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# File 'lib/floorplanner/collada_export.rb', line 55

def objects
  result = []
  @xml.find(OBJECTS_QUERY % @design_id).each do |object|
    begin
      refid = object.find('asset').first.attributes['refid']
      next unless assets[refid]

      asset    = assets[refid]
      position = Geom::Number3D.from_str(object.find('points').first.content)
      # correct Flash axis issues
      position.y *= -1.0

      # correct Flash rotation issues
      rotation = unless object.find('rotation').empty?
        object.find('rotation').first.content
      else
        '0 0 0'
      end
      rotation = Geom::Number3D.from_str(rotation)
      rotation.z += 360 if rotation.z < 0
      rotation.z += 180

      # find proper scale for object
      size     = object.find('size').first.content
      scale    = asset.scale_ratio(Geom::Number3D.from_str(size))

      mirrored = object.find('mirrored').first
      reflection = Geom::Matrix3D.reflection(Geom::Plane.new(Geom::Number3D.new(0.0,1.0,0.0), Geom::Number3D.new))
      if mirrored
        mirror   = Geom::Number3D.from_str(mirrored)
        if mirror.x != 0 || mirror.y != 0 || mirror.z != 0
          mirror.x = mirror.x > 0 ? 1 : 0
          mirror.y = mirror.y > 0 ? 1 : 0
          mirror.z = mirror.z > 0 ? 1 : 0

          origin = Geom::Number3D.new
          plane  = Geom::Plane.new(mirror,origin)
          reflection = Geom::Matrix3D.reflection(plane).multiply reflection
        end
      end

      result << {
        :asset => asset,
        :position => position,
        :rotation => rotation,
        :scale    => scale,
        :matrix   => reflection
      }
    rescue
      # TODO: handle text
    end
  end
  result
end

#save_textures(root_path) ⇒ Object 



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# File 'lib/floorplanner/collada_export.rb', line 110

def save_textures(root_path)
  img_path = File.join(root_path,'textures')
  FileUtils.mkdir_p img_path
  assets.each_value do |asset|
    asset.save_textures img_path
  end
end

#to_dae(xrefs = false) ⇒ Object 



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# File 'lib/floorplanner/collada_export.rb', line 21

def to_dae(xrefs=false)
  raise "No geometries to export. Call build_geometries first" unless @areas && @walls
  @assets   = assets
  @elements = objects

  # somehow...
  @walls.reverse
  @areas.each {|a| a.reverse}
  @xrefs = xrefs

  template = ERB.new(
    File.read(
      File.join(File.dirname(__FILE__), '..', '..', 'views', 'design.dae.erb')))
  template.result(binding)
end