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Versions: 5
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Contents
require 'neo4j/spatial/listener'
require 'neo4j/spatial/database'
require 'tempfile'
module Neo4j
module Spatial
class ImageExporter
include Database
def initialize(options={})
default(options)
database(options)
@exporter = org.neo4j.gis.spatial.geotools.data.StyledImageExporter.new(@db.graph)
@exporter.setExportDir(options[:dir])
@exporter.setZoom(options[:zoom].to_f)
@exporter.setOffset((options[:offset_x].to_f || options[:offset]).to_f, (options[:offset_y].to_f || options[:offset]).to_f)
@exporter.setSize(options[:width].to_i, options[:height].to_i)
end
def default(options)
options[:dir] ||= "target/export"
options[:zoom] ||= 3.0
options[:offset] ||= 0.0
options[:width] ||= 600
options[:height] ||= 400
end
def export(layer_name,options={})
@layer_name = layer_name
options[:path] ||= layer_name+'.png'
if block_given?
puts "block is given"
end
if options[:sld].nil?
puts "SLD nil"
end
if options[:sld].nil? && block_given?
Tempfile.open 'neo4j-spatial-sld' do |out|
options[:sld] = out.path
sld = Amanzi::SLD::Document.new layer_name
yield sld
out.puts sld.to_xml :tab => ' '
end
end
options[:sld] ||= 'neo.sld.xml'
puts "Exporting #{layer_name} to #{options[:path]} using style #{options[:sld]}"
@exporter.saveLayerImage(layer_name, options[:sld], options[:path])
end
def format
"PNG"
end
def to_s
@layer_name || format
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems