Class: ChemScanner::ChemDraw::ChemGeometry

Inherits:
BaseNode
  • Object
show all
Defined in:
lib/chem_scanner/chem_draw/node/chem_geometry.rb

Overview

Geometry parser

Constant Summary

Constants included from BaseValue

BaseValue::ARROW_NOGO_CROSS, BaseValue::CDXML_ARROW_TYPE, BaseValue::CDXML_ATOM_EXTERNAL_CONNECTION_TYPE, BaseValue::CDXML_CDX_POINT, BaseValue::CDXML_GRAPHIC_TYPE, BaseValue::CDXML_LINE_TYPE, BaseValue::CDXML_NODE_TYPE, BaseValue::CDXML_ORBITAL_TYPE, BaseValue::CDXML_OVAL_TYPE, BaseValue::TEXT_ATTRIBUTES

Instance Attribute Summary collapse

Attributes inherited from BaseNode

#id, #parser, #parser_type, #polygon

Instance Method Summary collapse

Methods inherited from BaseNode

#assign_center, #bounding_box, #cdx_read, #cdxml_read, #center_x, #center_y, #get_tempid, #post_parse_node, #pre_parse_node, #read, #set_cdx, #set_cdxml

Methods included from BaseValue

#binary_chunks, #cdx_styles, #cdx_text, #cdxml_text, #do_unhandled, #point_2d, #point_3d, #polygon_from_bb, #read_bounding_box, #read_ids, #read_int, #read_type, #read_value

Constructor Details

#initialize(parser, parser_type, id) ⇒ ChemGeometry

Returns a new instance of ChemGeometry.



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 9

def initialize(parser, parser_type, id)
  super(parser, parser_type, id)

  @middle_points = []
  @line_type = 0
end

Instance Attribute Details

#head ⇒ Object (readonly)

Returns the value of attribute head.



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 7

def head
  @head
end

#head_type ⇒ Object (readonly)

Returns the value of attribute head_type.



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 7

def head_type
  @head_type
end

#line_type ⇒ Object (readonly)

Returns the value of attribute line_type.



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 7

def line_type
  @line_type
end

#nogo ⇒ Object (readonly)

Returns the value of attribute nogo.



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 7

def nogo
  @nogo
end

#tail ⇒ Object (readonly)

Returns the value of attribute tail.



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 7

def tail
  @tail
end

Instance Method Details

#cross? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 53

def cross?
  !@nogo.nil?
end

#headless ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 49

def headless
  @arrow_head != 2
end

#line ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 45

def line
  segment.to_line
end

#parse_node(tag, _nid, data) ⇒ Object

NOTE: head —-> tail (head at tail)



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 17

def parse_node(tag, _nid, data)
  case @props_ref[tag]
  when "3DTail"
    x, y = read_value(tag, data)
    @tail = { x: x, y: y }
  when "3DHead"
    x, y = read_value(tag, data)
    @head = { x: x, y: y }
  when "Arrow_ArrowHead_Head"
    @arrow_head = read_type(tag, data, CDXML_ARROW_TYPE)
  when "Arrow_NoGo" then @nogo = read_value(tag, data)
  when "Line_Type"
    @line_type = read_type(tag, data, CDXML_LINE_TYPE)
  else do_unhandled(tag)
  end
end

#segment ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 34

def segment
  Geometry::Segment.new_by_arrays(
    [@tail[:x], @tail[:y]],
    [@head[:x], @head[:y]],
  )
end

#vector ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/chem_geometry.rb', line 41

def vector
  segment.to_vector
end