deleting old folder after move

[geo.git] / edit_wp5_web_folder / geo / mapviewer_copy / proj4js / lib / projCode / eqdc.js

diff --git a/edit_wp5_web_folder/geo/mapviewer_copy/proj4js/lib/projCode/eqdc.js b/edit_wp5_web_folder/geo/mapviewer_copy/proj4js/lib/projCode/eqdc.js
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-/*******************************************************************************\r
-NAME                            EQUIDISTANT CONIC \r
-\r
-PURPOSE:       Transforms input longitude and latitude to Easting and Northing\r
-               for the Equidistant Conic projection.  The longitude and\r
-               latitude must be in radians.  The Easting and Northing values\r
-               will be returned in meters.\r
-\r
-PROGRAMMER              DATE\r
-----------              ----\r
-T. Mittan              Mar, 1993\r
-\r
-ALGORITHM REFERENCES\r
-\r
-1.  Snyder, John P., "Map Projections--A Working Manual", U.S. Geological\r
-    Survey Professional Paper 1395 (Supersedes USGS Bulletin 1532), United\r
-    State Government Printing Office, Washington D.C., 1987.\r
-\r
-2.  Snyder, John P. and Voxland, Philip M., "An Album of Map Projections",\r
-    U.S. Geological Survey Professional Paper 1453 , United State Government\r
-    Printing Office, Washington D.C., 1989.\r
-*******************************************************************************/\r
-\r
-/* Variables common to all subroutines in this code file\r
-  -----------------------------------------------------*/\r
-\r
-Proj4js.Proj.eqdc = {\r
-\r
-/* Initialize the Equidistant Conic projection\r
-  ------------------------------------------*/\r
-  init: function() {\r
-\r
-    /* Place parameters in static storage for common use\r
-      -------------------------------------------------*/\r
-\r
-    if(!this.mode) this.mode=0;//chosen default mode\r
-    this.temp = this.b / this.a;\r
-    this.es = 1.0 - Math.pow(this.temp,2);\r
-    this.e = Math.sqrt(this.es);\r
-    this.e0 = Proj4js.common.e0fn(this.es);\r
-    this.e1 = Proj4js.common.e1fn(this.es);\r
-    this.e2 = Proj4js.common.e2fn(this.es);\r
-    this.e3 = Proj4js.common.e3fn(this.es);\r
-\r
-    this.sinphi=Math.sin(this.lat1);\r
-    this.cosphi=Math.cos(this.lat1);\r
-\r
-    this.ms1 = Proj4js.common.msfnz(this.e,this.sinphi,this.cosphi);\r
-    this.ml1 = Proj4js.common.mlfn(this.e0, this.e1, this.e2,this.e3, this.lat1);\r
-\r
-    /* format B\r
-    ---------*/\r
-    if (this.mode != 0) {\r
-      if (Math.abs(this.lat1 + this.lat2) < Proj4js.common.EPSLN) {\r
-            Proj4js.reportError("eqdc:Init:EqualLatitudes");\r
-            //return(81);\r
-       }\r
-       this.sinphi=Math.sin(this.lat2);\r
-       this.cosphi=Math.cos(this.lat2);   \r
-\r
-       this.ms2 = Proj4js.common.msfnz(this.e,this.sinphi,this.cosphi);\r
-       this.ml2 = Proj4js.common.mlfn(this.e0, this.e1, this.e2, this.e3, this.lat2);\r
-       if (Math.abs(this.lat1 - this.lat2) >= Proj4js.common.EPSLN) {\r
-         this.ns = (this.ms1 - this.ms2) / (this.ml2 - this.ml1);\r
-       } else {\r
-          this.ns = this.sinphi;\r
-       }\r
-    } else {\r
-      this.ns = this.sinphi;\r
-    }\r
-    this.g = this.ml1 + this.ms1/this.ns;\r
-    this.ml0 = Proj4js.common.mlfn(this.e0, this.e1,this. e2, this.e3, this.lat0);\r
-    this.rh = this.a * (this.g - this.ml0);\r
-  },\r
-\r
-\r
-/* Equidistant Conic forward equations--mapping lat,long to x,y\r
-  -----------------------------------------------------------*/\r
-  forward: function(p) {\r
-    var lon=p.x;\r
-    var lat=p.y;\r
-\r
-    /* Forward equations\r
-      -----------------*/\r
-    var ml = Proj4js.common.mlfn(this.e0, this.e1, this.e2, this.e3, lat);\r
-    var rh1 = this.a * (this.g - ml);\r
-    var theta = this.ns * Proj4js.common.adjust_lon(lon - this.long0);\r
-\r
-    var x = this.x0  + rh1 * Math.sin(theta);\r
-    var y = this.y0 + this.rh - rh1 * Math.cos(theta);\r
-    p.x=x;\r
-    p.y=y;\r
-    return p;\r
-  },\r
-\r
-/* Inverse equations\r
-  -----------------*/\r
-  inverse: function(p) {\r
-    p.x -= this.x0;\r
-    p.y  = this.rh - p.y + this.y0;\r
-    var con, rh1;\r
-    if (this.ns >= 0) {\r
-       var rh1 = Math.sqrt(p.x *p.x + p.y * p.y); \r
-       var con = 1.0;\r
-    } else {\r
-       rh1 = -Math.sqrt(p.x *p. x +p. y * p.y); \r
-       con = -1.0;\r
-    }\r
-    var theta = 0.0;\r
-    if (rh1 != 0.0) theta = Math.atan2(con *p.x, con *p.y);\r
-    var ml = this.g - rh1 /this.a;\r
-    var lat = this.phi3z(this.ml,this.e0,this.e1,this.e2,this.e3);\r
-    var lon = Proj4js.common.adjust_lon(this.long0 + theta / this.ns);\r
-\r
-     p.x=lon;\r
-     p.y=lat;  \r
-     return p;\r
-    },\r
-    \r
-/* Function to compute latitude, phi3, for the inverse of the Equidistant\r
-   Conic projection.\r
------------------------------------------------------------------*/\r
-  phi3z: function(ml,e0,e1,e2,e3) {\r
-    var phi;\r
-    var dphi;\r
-\r
-    phi = ml;\r
-    for (var i = 0; i < 15; i++) {\r
-      dphi = (ml + e1 * Math.sin(2.0 * phi) - e2 * Math.sin(4.0 * phi) + e3 * Math.sin(6.0 * phi))/ e0 - phi;\r
-      phi += dphi;\r
-      if (Math.abs(dphi) <= .0000000001) {\r
-        return phi;\r
-      }\r
-    }\r
-    Proj4js.reportError("PHI3Z-CONV:Latitude failed to converge after 15 iterations");\r
-    return null;\r
-  }\r
-\r
-    \r
-};
\ No newline at end of file