Module: Soby

Included in:
Presentation
Defined in:
lib/soby/transforms.rb

Instance Method Summary collapse

Instance Method Details

#create_mat4x4(mat) ⇒ Object 



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# File 'lib/soby/transforms.rb', line 45

def create_mat4x4(mat) 
  Matrix4x4.new(mat.m00, mat.m01, mat.m02, mat.m03,\
                mat.m10, mat.m11, mat.m12, mat.m13,\
                mat.m20, mat.m21, mat.m22, mat.m23,\
                mat.m30, mat.m31, mat.m32, mat.m33)
end

#get_angle(mat) ⇒ Object 



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# File 'lib/soby/transforms.rb', line 40

def get_angle (mat)
  Math.atan2(mat.m01, mat.m00) 
end

#get_global_transform(element) ⇒ Object 



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# File 'lib/soby/transforms.rb', line 20

def get_global_transform element
  e = element
  global_transform = PMatrix3D.new

  attr = e.attributes

  global_transform.translate(attr["x"].value.to_f, attr["y"].value.to_f)

  while  e.class != Nokogiri::XML::Document do 
    t = e.attribute("transform")
    if (t != nil) 
      tr = read_transform(t.value)
      global_transform.preApply(tr)
    end
    e = e.parent
  end
  
  [global_transform , attr["width"].value.to_f, attr["height"].value.to_f]
end

#read_transform(text) ⇒ Object 



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# File 'lib/soby/transforms.rb', line 6

def read_transform (text)
  if(text.match("matrix"))
    text = text.split(/[,\(]/)  # split with  , or  (
    return PMatrix2D.new(text[1].to_f, text[3].to_f, text[5].to_f, \
                         text[2].to_f, text[4].to_f, text[6].to_f)   if(text.size == 7)
  end
  
  if(text.match("translate")) 
    text = text.split(/[,\(]/)  
    return PMatrix2D.new(1, 0, text[1].to_f, 0, 1, text[2].to_f)   
  end
end