Class: RGeoServer::ShapefileInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/rgeoserver/utils/shapefile_info.rb

Defined Under Namespace

Classes: ShapefileInfoGeometryNotExpected

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file_path) ⇒ ShapefileInfo

Returns a new instance of ShapefileInfo.



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# File 'lib/rgeoserver/utils/shapefile_info.rb', line 19

def initialize file_path
  @file_path = file_path
end

Instance Attribute Details

#file_path ⇒ Object (readonly)

Returns the value of attribute file_path.



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# File 'lib/rgeoserver/utils/shapefile_info.rb', line 17

def file_path
  @file_path
end

Instance Method Details

#bounds ⇒ Object 



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# File 'lib/rgeoserver/utils/shapefile_info.rb', line 23

def bounds
  resource_init

  bbox = BoundingBox.new
  RGeo::Shapefile::Reader.open(@shp_path) do |shp|
    shp.each do |record|
      geometry = record.geometry
      envelope = geometry.envelope
      envelope_type = envelope.geometry_type
      points = case envelope_type
               when RGeo::Feature::Point
                 [envelope]
               when RGeo::Feature::Polygon
                 envelope.exterior_ring.points
               else
                 raise ShapefileInfoGeometryNotExpected, envelope_type
               end
      points.each { |point| bbox.add point.x, point.y }
    end
  end

  resource_destroy

  bbox.expand if [bbox.minx, bbox.miny] == [bbox.maxx, bbox.maxy]

  bbox
end

#srid ⇒ Object 



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# File 'lib/rgeoserver/utils/shapefile_info.rb', line 51

def srid
  resource_init

  srid = 0
  RGeo::Shapefile::Reader.open(@shp_path) do |shp|
    srid = shp.factory.srid
  end

  resource_destroy

  srid
end