projected 2001-11-06 true false http://www.opengis.net/def/crs/EPSG/0/27574 NTF (Paris) / Lambert zone IV Introduced 1972. Replaces NTF (Paris) / Lambert Corse (code 27564). France - Corsica onshore. 8.5 9.63 41.31 43.07 OGP 2014-05-01 false false http://www.opengis.net/def/area/EPSG/0/1327 France - Corsica onshore Large and medium scale topographic mapping and engineering survey. conversion IGN Paris. 2003-01-16 true false http://www.opengis.net/def/coordinateOperation/EPSG/0/18084 Lambert zone IV Longitude is referenced to the Paris meridian. Introduced 1972. Replaces Lambert Corse (code 18094). France - Corsica onshore. 8.5 9.63 41.31 43.07 OGP 2014-05-01 false false http://www.opengis.net/def/area/EPSG/0/1327 France - Corsica onshore Large and medium scale topographic mapping and engineering survey. ISO 1000. 1995-06-02 false http://www.opengis.net/def/uom/EPSG/0/9001 metre Also known as International metre. SI standard unit. length 0 EPSG guidance note #7-2, http://www.epsg.org 2001-06-05 false true For Projected Coordinate System JAD69 / Jamaica National Grid Parameters: Ellipsoid: Clarke 1866, a = 6378206.400 m., 1/f = 294.97870 then e = 0.08227185 and e^2 = 0.00676866 Latitude Natural Origin 18°00'00"N = 0.31415927 rad Longitude Natural Origin 77°00'00"W = -1.34390352 rad Scale factor at origin 1.000000 False Eastings FE 250000.00 m False Northings FN 150000.00 m Forward calculation for: Latitude: 17°55'55.80"N = 0.31297535 rad Longitude: 76°56'37.26"W = -1.34292061 rad first gives m0 = 0.95136402 t0 = 0.72806411 F = 3.39591092 n = 0.30901699 r = 19643955.26 r0 = 19636447.86 theta = 0.00030374 t = 0.728965259 Then Easting E = 255966.58 m Northing N = 142493.51 m Reverse calculation for the same easting and northing first gives theta' = 0.000303736 t' = 0.728965259 m0 = 0.95136402 r' = 19643955.26 Then Latitude = 17°55'55.800"N Longitude = 76°56'37.260"W http://www.opengis.net/def/method/EPSG/0/9801 Lambert Conic Conformal (1SP) Note: These formulas have been transcribed from EPSG Guidance Note #7-2. Users are encouraged to use that document rather than the text which follows as reference because limitations in the transcription will be avoided. To derive the projected Easting and Northing coordinates of a point with geographical coordinates (lat,lon) the formulas for the one standard parallel case are: E = FE + r sin(theta) N = FN + r0 - r cos(theta) where n = sin lat0 r = a F t^n k0 for r0, and r m = cos(lat)/(1 - e^2 sin^2(lat))^0.5 for m0, lat0, and m2, lat2 where lat1 and lat2 are the latitudes of the standard parallels. t = tan(pi/4 - lat/2)/[(1 - e sin(lat))/(1 + e sin(lat))]^(e/2) for t0 and t using lat0 and lat respectively. F = m0/(n t1^n) theta = n(lon - lon0) The reverse formulas to derive the latitude and longitude of a point from its Easting and Northing values are: lat = pi/2 - 2arctan{t'[(1 - esin(lat))/(1 + esin(lat))]^(e/2)} lon = theta'/n +lon0 where theta' = arctan[(E - FE)/{r0 -(N - FN)}] r' = +/-[(E - FE)^2 + {r0 - (N - FN)}^2]^0.5 taking the sign of n t' = (r'/(a k0 F))^(1/n) and n, F, and rF are derived as for the forward calculation. 2 2 46.85 EPSG guidance note number 7. 1999-09-09 false The latitude of the point from which the values of both the geographical coordinates on the ellipsoid and the grid coordinates on the projection are deemed to increment or decrement for computational purposes. Alternatively it may be considered as the latitude of the point which in the absence of application of false coordinates has grid coordinates of (0,0). http://www.opengis.net/def/parameter/EPSG/0/8801 Latitude of natural origin 0 Abbeviated as "CM". Abbreviation for "Central Meridian". EPSG guidance note number 7. 2002-06-22 false The longitude of the point from which the values of both the geographical coordinates on the ellipsoid and the grid coordinates on the projection are deemed to increment or decrement for computational purposes. Alternatively it may be considered as the longitude of the point which in the absence of application of false coordinates has grid coordinates of (0,0). Sometimes known as "central meridian (CM)". http://www.opengis.net/def/parameter/EPSG/0/8802 Longitude of natural origin 0.99994471 EPSG guidance note number 7. 1999-09-09 false The factor by which the map grid is reduced or enlarged during the projection process, defined by its value at the natural origin. http://www.opengis.net/def/parameter/EPSG/0/8805 Scale factor at natural origin 234.358 This alias applies only in the case of projection methods which have an axis positive west, e.g. Transverse Mercator (South Orientated). EPSG guidance note number 7. 2002-07-31 false Since the natural origin may be at or near the centre of the projection and under normal coordinate circumstances would thus give rise to negative coordinates over parts of the mapped area, this origin is usually given false coordinates which are large enough to avoid this inconvenience. The False Easting, FE, is the value assigned to the abscissa (east or west) axis of the projection grid at the natural origin. http://www.opengis.net/def/parameter/EPSG/0/8806 False easting 4185861.369 This alias applies only in the case of projection methods which have an axis positive south, e.g. Transverse Mercator (South Orientated). EPSG guidance note number 7. 2002-07-31 false Since the natural origin may be at or near the centre of the projection and under normal coordinate circumstances would thus give rise to negative coordinates over parts of the mapped area, this origin is usually given false coordinates which are large enough to avoid this inconvenience. The False Northing, FN, is the value assigned to the ordinate (north or south) axis of the projection grid at the natural origin. http://www.opengis.net/def/parameter/EPSG/0/8807 False northing geographic 2D 2010-03-30 true false http://www.opengis.net/def/crs/EPSG/0/4807 NTF (Paris) France - onshore - mainland and Corsica. -4.87 9.63 41.31 51.14 OGP 2012-01-05 true false http://www.opengis.net/def/area/EPSG/0/3694 France - onshore - mainland and Corsica Superset of areas 1326 and 1327. Geodetic survey. ellipsoidal OGP 2002-11-18 false http://www.opengis.net/def/cs/EPSG/0/6403 Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: grads. Used in geographic 2D coordinate reference systems. http://www.opengis.net/def/axis/EPSG/0/58 Lat north http://www.opengis.net/def/axis/EPSG/0/59 Long east geodetic 2010-03-30 true false http://www.opengis.net/def/datum/EPSG/0/6807 Nouvelle Triangulation Francaise (Paris) Topographic mapping. Fundamental point: Pantheon. Latitude: 54.273618g N, longitude: 0.0106921g E (of Paris). 1895-01-01 Cartesian OGP 2001-04-29 false http://www.opengis.net/def/cs/EPSG/0/4499 Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m. Used in projected and engineering coordinate reference systems. http://www.opengis.net/def/axis/EPSG/0/41 X east http://www.opengis.net/def/axis/EPSG/0/42 Y north