add *2ned functions, use function-based tests

+matmap3d/aer2ecef.m

@@ -38,7 +38,7 @@
 
 end
 %%
-%  Copyright (c) 2014-2018 Michael Hirsch, Ph.D.
+%  Copyright (c) 2020 Michael Hirsch
 %  Copyright (c) 2013, Felipe Geremia Nievinski
 %
 %  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

+matmap3d/aer2enu.m

@@ -29,7 +29,7 @@
 
 end
 %%
-% Copyright (c) 2014-2018 Michael Hirsch, Ph.D.
+% Copyright (c) 2020 Michael Hirsch
 % Copyright (c) 2013, Felipe Geremia Nievinski
 %
 % Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

+matmap3d/aer2geodetic.m

@@ -28,7 +28,7 @@
 
 end
 %%
-% Copyright (c) 2014-2018 Michael Hirsch, Ph.D.
+% Copyright (c) 2020 Michael Hirsch
 % Copyright (c) 2013, Felipe Geremia Nievinski
 %
 % Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

+matmap3d/aer2ned.m

@@ -0,0 +1,31 @@
+function [north, east, down] = aer2ned (az, el, slantRange, angleUnit)
+%% aer2ned  convert azimuth, elevation, range to NED coordinates
+%
+%%% Inputs
+% * az, el, slantrange: look angles and distance to point under test (degrees, degrees, meters)
+% * az: azimuth clockwise from local north
+% * el: elevation angle above local horizon
+% * angleUnit: string for angular units. Default 'd': degrees
+%
+%%% Outputs
+% * north, east, down:  coordinates of points (meters)
+arguments
+  az {mustBeNumeric,mustBeReal}
+  el {mustBeNumeric,mustBeReal}
+  slantRange {mustBeNumeric,mustBeReal}
+  angleUnit (1,1) string = "d"
+end
+
+[east, north, up] = matmap3d.aer2enu(az, el, slantRange, angleUnit);
+
+down = -up;
+
+end
+%%
+% Copyright (c) 2020 Michael Hirsch
+% Copyright (c) 2013, Felipe Geremia Nievinski
+%
+% Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+% 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+% 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+matmap3d/ecef2enu.m

@@ -1,5 +1,5 @@
-function [e,n,u] = ecef2enu (x, y, z, lat0, lon0, alt0, spheroid, angleUnit)
-%% ecef2enu  convert ECEF to ENU
+function [east, north, up] = ecef2enu (x, y, z, lat0, lon0, alt0, spheroid, angleUnit)
+%% ecef2ned  convert ECEF to NED
 %
 %%% Inputs
 % * x,y,z: Earth Centered Earth Fixed (ECEF) coordinates of test point (meters)
@@ -8,7 +8,7 @@
 % * angleUnit: string for angular units. Default 'd': degrees
 %
 %%% outputs
-% * e,n,u:  East, North, Up coordinates of test points (meters)
+% * East, North, Up coordinates of test points (meters)
 arguments
   x {mustBeNumeric,mustBeReal}
   y {mustBeNumeric,mustBeReal}
@@ -21,10 +21,11 @@
 end
 
 [x0, y0, z0] = matmap3d.geodetic2ecef(spheroid, lat0, lon0, alt0, angleUnit);
-[e, n, u]    = matmap3d.ecef2enuv(x - x0, y - y0, z - z0, lat0, lon0, angleUnit);
+[east, north, up] = matmap3d.ecef2enuv(x - x0, y - y0, z - z0, lat0, lon0, angleUnit);
+
 end
 %%
-% Copyright (c) 2014-2018 Michael Hirsch, Ph.D.
+% Copyright (c) 2020 Michael Hirsch
 % Copyright (c) 2013, Felipe Geremia Nievinski
 %
 % Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

+matmap3d/ecef2geodetic.m

@@ -67,7 +67,7 @@
 
 end % function
 %%
-% Copyright (c) 2014-2018 Michael Hirsch, Ph.D.
+% Copyright (c) 2020 Michael Hirsch
 %
 % Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 % 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

+matmap3d/ecef2ned.m

@@ -0,0 +1,36 @@
+function [north, east, down] = ecef2ned (x, y, z, lat0, lon0, alt0, spheroid, angleUnit)
+%% ecef2enu  convert ECEF to ENU
+%
+%%% Inputs
+% * x,y,z: Earth Centered Earth Fixed (ECEF) coordinates of test point (meters)
+% * lat0, lon0, alt0: ellipsoid geodetic coordinates of observer/reference (degrees, degrees, meters)
+% * spheroid: referenceEllipsoid
+% * angleUnit: string for angular units. Default 'd': degrees
+%
+%%% outputs
+% * North,East,Down: coordinates of points (meters)
+
+arguments
+  x {mustBeNumeric,mustBeReal}
+  y {mustBeNumeric,mustBeReal}
+  z {mustBeNumeric,mustBeReal}
+  lat0 {mustBeNumeric,mustBeReal}
+  lon0 {mustBeNumeric,mustBeReal}
+  alt0 {mustBeNumeric,mustBeReal}
+  spheroid (1,1) matmap3d.referenceEllipsoid = matmap3d.wgs84Ellipsoid()
+  angleUnit (1,1) string = "d"
+end
+
+[east, north, up] = ecef2enu(x,y,z,lat0,lon0,alt0,spheroid,angleUnit);
+
+down = -up;
+
+end
+%%
+% Copyright (c) 2020 Michael Hirsch
+% Copyright (c) 2013, Felipe Geremia Nievinski
+%
+% Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+% 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+% 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+matmap3d/geodetic2enu.m

@@ -1,4 +1,4 @@
-function [e, n, u] = geodetic2enu(lat, lon, alt, lat0, lon0, alt0, spheroid, angleUnit)
+function [east, north, up] = geodetic2enu(lat, lon, alt, lat0, lon0, alt0, spheroid, angleUnit)
 %% geodetic2enu    convert from geodetic to ENU coordinates
 %
 %%% Inputs
@@ -8,7 +8,7 @@
 % * angleUnit: string for angular units. Default 'd': degrees
 %
 %%% outputs
-% * e,n,u:  East, North, Up coordinates of test points (meters)
+% * east,north,up: coordinates of points (meters)
 arguments
   lat {mustBeNumeric,mustBeReal}
   lon {mustBeNumeric,mustBeReal}
@@ -27,7 +27,7 @@
 dy = y1-y2;
 dz = z1-z2;
 
-[e, n, u] = matmap3d.ecef2enuv(dx, dy, dz, lat0, lon0, angleUnit);
+[east, north, up] = matmap3d.ecef2enuv(dx, dy, dz, lat0, lon0, angleUnit);
 
 end
 %%