97 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			97 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| #--
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| # Copyright (c) 2006  Doug Fales 
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| #
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| # Permission is hereby granted, free of charge, to any person obtaining
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| # a copy of this software and associated documentation files (the
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| # "Software"), to deal in the Software without restriction, including
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| # without limitation the rights to use, copy, modify, merge, publish,
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| # distribute, sublicense, and/or sell copies of the Software, and to
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| # permit persons to whom the Software is furnished to do so, subject to
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| # the following conditions:
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| #
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| # The above copyright notice and this permission notice shall be
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| # included in all copies or substantial portions of the Software.
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| #
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| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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| # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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| # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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| # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| #++
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| 
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| module GPX
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| 
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|   # This class supports the concept of a waypoint.  Beware that this class has
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|   # not seen much use yet, since WalkingBoss does not use waypoints right now. 
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|   class Waypoint < Point
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| 
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|     SUB_ELEMENTS = %w{ magvar geoidheight name cmt desc src link sym type fix sat hdop vdop pdop ageofdgpsdata dgpsid extensions } 
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| 
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|     attr_reader :gpx_file
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|     SUB_ELEMENTS.each { |sub_el| attr_accessor sub_el.to_sym }
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| 
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|     # Not implemented
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|     def crop(area)
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|     end
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| 
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|     # Not implemented
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|     def delete_area(area)
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|     end
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| 
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|     # Initializes a waypoint from a XML::Node.
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|     def initialize(opts = {})
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|       if(opts[:element] and opts[:gpx_file])
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|         wpt_elem = opts[:element]
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|         @gpx_file = opts[:gpx_file]
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|         super(:element => wpt_elem, :gpx_file => @gpx_file)
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|         instantiate_with_text_elements(wpt_elem, SUB_ELEMENTS, @gpx_file.ns)
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|       else
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|         opts.each do |key, value|
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|           assignment_method = "#{key}="
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|           if self.respond_to?(assignment_method)
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|             self.send(assignment_method, value)
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|           end
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|         end
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|       end
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|     end
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| 
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|     # Prints out a friendly summary of this track (sans points).  Useful for
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|     # debugging and sanity checks.
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|     def to_s
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|       result = "Waypoint \n"
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|       result << "\tName: #{name}\n"
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|       result << "\tLatitude: #{lat} \n"
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|       result << "\tLongitude: #{lon} \n"
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|       result << "\tElevation: #{elevation}\n "
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|       result << "\tTime: #{time}\n"
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|       SUB_ELEMENTS.each do |sub_element_attribute|
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|         val = self.send(sub_element_attribute)
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|         result << "\t#{sub_element_attribute}: #{val}\n" unless val.nil?
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|       end
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|       result
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|     end
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| 
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|     # Converts a waypoint to a XML::Node.
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|     def to_xml(elem_name = 'wpt')
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|       wpt = Node.new(elem_name)
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|       wpt['lat'] = lat.to_s
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|       wpt['lon'] = lon.to_s
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|       SUB_ELEMENTS.each do |sub_element_name|
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|         if(self.respond_to?(sub_element_name) and (!self.send(sub_element_name).nil?))
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|           sub_elem_node = Node.new(sub_element_name)
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|           sub_elem_node <<  self.send(sub_element_name) 
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|           wpt <<  sub_elem_node
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|         end
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|       end
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|       unless(self.elevation.nil?)
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|         ele_node = Node.new('ele')
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|         ele_node <<  self.elevation
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|         wpt <<  ele_node
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|       end
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|       wpt
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|     end
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|   end
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| end
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