Added ruby

scripts/ruby/wgs84_vh1903.rb

@@ -0,0 +1,201 @@
+# The MIT License (MIT)
+#
+# Copyright (c) 2014 Federal Office of Topography swisstopo, Wabern, CH
+# Copyright (c) 2017 Michael Monay https://github.com/micmonay
+# Copyright (c) 2019 Bernhard Flühmann, Realstuff Informatik AG, Bern, CH, https://www.realstuff.ch
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+#  of this software and associated documentation files (the "Software"), to deal
+#  in the Software without restriction, including without limitation the rights
+#  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+#  copies of the Software, and to permit persons to whom the Software is
+#  furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+#  all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+#  THE SOFTWARE.
+#
+
+class Swisstopo
+
+    # Convert CH (LVS 03 and LV95) to WGS84 Return a array of double that contain lat, long,
+    # and height
+    #
+    # @param east
+    # @param north
+    # @param height
+    # @return
+    #
+    def CHtoWGS84(east, north, height)
+
+        # Remove LV95 east offset
+        offsetEast = 2000000
+        if east >= offsetEast
+            east = east - offsetEast
+        end
+
+       # Remove LV95 north offset
+       offsetNorth = 1000000
+       if north >= offsetNorth
+           north = north - offsetNorth
+       end
+
+        d = Array.new(3)
+
+        d.insert(0, CHtoWGSlat(east, north))
+        d.insert(1, CHtoWGSlng(east, north))
+        d.insert(2, CHtoWGSheight(east, north, height))
+        return d
+    end
+
+    # Convert WGS84 to LV95 Return an array of double that contain east,
+    # north, and height
+    #
+    # @param latitude
+    # @param longitude
+    # @param ellHeight
+    # @return
+    #
+    def WGS84toLV95(lat, lng, ellHeight)
+
+        lv03 = WGS84toLV03(lat, lng, ellHeight)
+
+        offsetEast = 2000000
+        offsetNorth = 1000000
+
+        lv95 = Array.new(3)
+
+        lv95.insert(0, (lv03[0] + offsetEast))
+        lv95.insert(1, (lv03[1] + offsetNorth))
+        lv95.insert(2, lv03[2])
+
+        return lv95
+
+    end
+
+    # Convert WGS84 to LV03 Return an array of double that contain east,
+    # north, and height
+    #
+    # @param latitude
+    # @param longitude
+    # @param ellHeight
+    # @return
+    #
+    def WGS84toLV03(lat, lng, ellHeight)
+
+        d = Array.new(3)
+
+        d.insert(0, WGStoCHy(lat, lng))
+        d.insert(1, WGStoCHx(lat, lng))
+        d.insert(2, WGStoCHheight(lat, lng, ellHeight))
+        return d
+    end
+
+    # Convert CH y/x to WGS lat
+    def CHtoWGSlat(y, x)
+        # Converts military to civil and to unit = 1000km
+        # Auxiliary values (% Bern)
+        Float y_aux = (y - 600000) / 1000000
+        Float x_aux = (x - 200000) / 1000000
+
+        # Process lat
+        Float lat = (16.9023892 + (3.238272 * x_aux)) - (0.270978 * y_aux**2) - (0.002528 * x_aux**2) - (0.0447 * y_aux**2 * x_aux) - (0.0140 * x_aux**3)
+
+        # Unit 10000" to 1 " and converts seconds to degrees (dec)
+        lat = (lat * 100) / 36
+
+        return lat
+    end
+
+    # Convert CH y/x to WGS long
+    def CHtoWGSlng(y, x)
+        # Converts military to civil and to unit = 1000km
+        # Auxiliary values (% Bern)
+        y_aux = (y - 600000) / 1000000
+        x_aux = (x - 200000) / 1000000
+
+        # Process long
+        lng = (2.6779094 + (4.728982 * y_aux) + (0.791484 * y_aux * x_aux) + (0.1306 * y_aux * x_aux**2)) - (0.0436 * y_aux**3)
+
+        # Unit 10000" to 1 " and converts seconds to degrees (dec)
+        lng = (lng * 100) / 36
+
+        return lng
+    end
+
+    def CHtoWGSheight(y, x, h)
+        # Converts military to civil and to unit = 1000km
+        # Auxiliary values (% Bern)
+        Float y_aux = (y - 600000) / 1000000
+        Float x_aux = (x - 200000) / 1000000
+
+        # Process height
+        h = (h + 49.55) - (12.60 * y_aux) - (22.64 * x_aux)
+
+        return h
+    end
+
+    # Convert WGS lat/long (° dec) to CH x
+    def WGStoCHx(lat, lng)
+        # Converts dec degrees to sex seconds
+        lat = DecToSexAngle(lat)
+        lng = DecToSexAngle(lng)
+
+        # Auxiliary values (% Bern)
+        lat_aux = (lat - 169028.66) / 10000
+        lng_aux = (lng - 26782.5) / 10000
+
+        # Process X
+        x = ((200147.07 + (308807.95 * lat_aux) + (3745.25 * lng_aux**2) + (76.63 * lat_aux**2)) - (194.56 * lng_aux**2 * lat_aux)) + (119.79 * lat_aux*3)
+
+        return x
+    end
+
+   # Convert WGS lat/long (° dec) to CH y
+    def WGStoCHy(lat, lng)
+        # Converts dec degrees to sex seconds
+        lat = DecToSexAngle(lat)
+        lon = DecToSexAngle(lng)
+
+        # Auxiliary values (% Bern)
+        lat_aux = (lat - 169028.66) / 10000
+        lng_aux = (lon - 26782.5) / 10000
+
+        # Process Y
+        y = (600072.37 + (211455.93 * lng_aux)) - (10938.51 * lng_aux * lat_aux) - (0.36 * lng_aux * lat_aux**2 - lng_aux**3)
+
+        return y
+    end
+
+    # Convert WGS lat/long (° dec) and height to CH h
+    def WGStoCHheight(lat, lng, h)
+        # Converts dec degrees to sex seconds
+        lat = DecToSexAngle(lat)
+        lng = DecToSexAngle(lng)
+
+        # Auxiliary values (% Bern)
+        lat_aux = (lat - 169028.66) / 10000
+        lng_aux = (lng - 26782.5) / 10000
+
+        # Process h
+        h = (h - 49.55) + (2.73 * lng_aux) + (6.94 * lat_aux)
+
+        return h
+    end
+
+    # Convert decimal angle (degrees) to sexagesimal angle (seconds)
+    def DecToSexAngle (dec)
+        deg = dec.floor
+        min = ((dec - deg) * 60).floor
+        sec = (((dec - deg) * 60) - min) * 60
+
+        return sec + min*60.0 + deg*3600.0
+    end
+end