Module: RGeo::Geographic::SphericalLineStringMethods

Included in:
SphericalLineImpl, SphericalLineStringImpl, SphericalLinearRingImpl
Defined in:
lib/rgeo/geographic/spherical_feature_methods.rb

:nodoc:

Instance Method Details

#_arcs ⇒ Object

 ``` 140 141 142 143 144 145 146 147``` ```# File 'lib/rgeo/geographic/spherical_feature_methods.rb', line 140 def _arcs unless defined?(@arcs) @arcs = (0..num_points-2).map do |i_| SphericalMath::ArcXYZ.new(point_n(i_)._xyz, point_n(i_+1)._xyz) end end @arcs end```

#is_simple? ⇒ Boolean

Returns:

• (Boolean)
 ``` 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173``` ```# File 'lib/rgeo/geographic/spherical_feature_methods.rb', line 150 def is_simple? arcs_ = _arcs len_ = arcs_.length return false if arcs_.any?{ |a_| a_.degenerate? } return true if len_ == 1 return arcs_[0].s != arcs_[1].e if len_ == 2 arcs_.each_with_index do |arc_, index_| nindex_ = index_ + 1 nindex_ = nil if nindex_ == len_ return false if nindex_ && arc_.contains_point?(arcs_[nindex_].e) pindex_ = index_ - 1 pindex_ = nil if pindex_ < 0 return false if pindex_ && arc_.contains_point?(arcs_[pindex_].s) if nindex_ oindex_ = nindex_ + 1 while oindex_ < len_ oarc_ = arcs_[oindex_] return false if !(index_ == 0 && oindex_ == len_-1 && arc_.s == oarc_.e) && arc_.intersects_arc?(oarc_) oindex_ += 1 end end end true end```

#length ⇒ Object

 ``` 176 177 178``` ```# File 'lib/rgeo/geographic/spherical_feature_methods.rb', line 176 def length _arcs.inject(0.0){ |sum_, arc_| sum_ + arc_.length } * SphericalMath::RADIUS end```