class GCPS2TILES::GCPs
Attributes
csv[R]
Public Class Methods
new(csv_file_path)
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# File lib/gcps2tiles/gcps.rb, line 16 def initialize(csv_file_path) @csv = CSV.table(csv_file_path) end
Public Instance Methods
lat_avg()
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# File lib/gcps2tiles/gcps.rb, line 56 def lat_avg (lat_min + lat_max) / 2 end
lat_max()
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# File lib/gcps2tiles/gcps.rb, line 48 def lat_max transform_3857_to_4326(mapx_max, mapy_max).y * Proj4::RAD_TO_DEG end
lat_min()
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# File lib/gcps2tiles/gcps.rb, line 44 def lat_min transform_3857_to_4326(mapx_min, mapy_min).y * Proj4::RAD_TO_DEG end
lon_avg()
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# File lib/gcps2tiles/gcps.rb, line 52 def lon_avg (lon_min + lon_max) / 2 end
lon_max()
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# File lib/gcps2tiles/gcps.rb, line 40 def lon_max transform_3857_to_4326(mapx_max, mapy_max).x * Proj4::RAD_TO_DEG end
lon_min()
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# File lib/gcps2tiles/gcps.rb, line 36 def lon_min transform_3857_to_4326(mapx_min, mapy_min).x * Proj4::RAD_TO_DEG end
mapx_max()
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# File lib/gcps2tiles/gcps.rb, line 24 def mapx_max @csv.map{ |e| e[:mapx] }.max end
mapx_min()
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# File lib/gcps2tiles/gcps.rb, line 20 def mapx_min @csv.map{ |e| e[:mapx] }.min end
mapy_max()
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# File lib/gcps2tiles/gcps.rb, line 32 def mapy_max @csv.map{ |e| e[:mapy] }.max end
mapy_min()
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# File lib/gcps2tiles/gcps.rb, line 28 def mapy_min @csv.map{ |e| e[:mapy] }.min end
to_h()
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# File lib/gcps2tiles/gcps.rb, line 60 def to_h { mapx_min:mapx_min, mapx_max:mapx_max, mapy_min:mapy_min, mapy_max:mapy_max, lon_min:lon_min, lon_max:lon_max, lat_min:lat_min, lat_max:lat_max, lon_avg:lon_avg, lat_avg:lat_avg, } end
transform_3857_to_4326(rw, hw, zw=0)
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# File lib/gcps2tiles/gcps.rb, line 10 def transform_3857_to_4326(rw, hw, zw=0) proj_epsg_3857 = Proj4::Projection.new(['init=epsg:3857']) proj_epsg_4326 = Proj4::Projection.new(['init=epsg:4326']) proj_epsg_3857.transform(proj_epsg_4326, Proj4::Point.new(rw, hw, zw)) end