| File Information |
| Description |
A collection of geodetic functions that solve a variety of problems in geodesy. Supports a wide range of common and user-defined reference ellipsoids. Most functions are vectorized. Functions include:
Angle Conversions
deg2rad - Degrees to radians
dms2deg - Degrees,minutes,seconds to degrees
dms2rad - Degrees,minutes,seconds to radians
rad2deg - Radians to degrees
rad2dms - Radians to degrees,minutes,seconds
rad2sec - Radians to seconds
sec2rad - Seconds to radians
Coordinate Conversions
ell2utm - Ellipsoidal (lat,long) to UTM (N,E) coordinates
ell2xyz - Ellipsoidal (lat,long) to Cartesian (x,y,z) coodinates
sph2xyz - Shperical (az,va,dist) to Cartesian (x,y,z) coordinates
xyz2sph - Cartesian (x,y,z) to spherical (az,va,dist) coordinates
xyz2ell - Cartesian (x,y,z) to ellipsoidal (lat,long,ht) coordinates
xyz2ell2 - xyz2ell with Bowring height formula
xyz2ell3 - xyz2ell using complete Bowring version
Coordinate Transformations
refell - Reference ellipsoid definition
ellradii - Various radii of curvature
cct2clg - Conventional terrestrial to local geodetic cov. matrix
clg2cct - Local geodetic to conventional terrestrial cov. matrix
ct2lg - Conventional terrestrial (ECEF) to local geodetic (NEU)
dg2lg - Differences in Geodetic (lat,lon) to local geodetic (NEU)
lg2ct - Local geodetic (NEU) to conventional terrestrial (ECEF)
lg2dg - Local geodetic (NEU) to differences in geodetic (lat,lon)
direct - Direct geodetic problem (X1,Y1,Z1 + Az,VA,Dist to X2,Y2,Z2)
inverse - Inverse geodetic problem (X1,Y1,Z1 + X2,Y2,Z2 to Az,VA,Dist)
simil - Similarity transformation (translation,rotation,scale change)
Date Conversions
cal2jd - Calendar date to Julian date
dates - Converts between different date formats
doy2jd - Year and day of year to Julian date
gps2jd - GPS week & seconds of week to Julian date
jd2cal - Julian date to calenar date
jd2dow - Julian date to day of week
jd2doy - Julian date to year & day of year
jd2gps - Julian date to GPS week & seconds of week
jd2yr - Julian date to year & decimal year
yr2jd - Year & decimal year to Julian date
Error Ellipses
errell2 - Computes error ellipse semi-axes and azimuth
errell3 - Computes error ellipsoid semi-axes, azimuths, inclinations
plterrel - Plots error ellipse for covariance matrix
Miscellaneous
findfixed - Finds fixed station based on 3D covariance matrix
pltnet - Plots network of points with labels
Example Scripts
DirInv - Simple partial GUI script for direct and inverse problems
DirProb - Example of direct problem
Dist3D - Example to compute incremental 3D distances between points.
InvProb - Example of inverse problem
PltNetEl - Example plot of network error ellipses
ToUTM - Example of conversion from latitude,longitude to UTM
Most recent version can be found at <ftp://geod.nrcan.gc.ca/pub/GSD/craymer/software/matlab/geodetic/>. |
| Acknowledgements |
This submission has inspired the following:
, Equinoxes and Solstices
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| MATLAB release |
MATLAB 7.3 (R2006b)
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| Zip File Content |
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| Other Files |
Contents.m, DirInv.m, DirProb.m, Dist3D.m, InvProb.m, PltNetEl.m, ToUTM.m, cal2jd.m, cct2clg.m, clg2cct.m, ct2lg.m, dates.m, dates_old.m, deg2rad.m, dg2lg.m, direct.m, dms2deg.m, dms2rad.m, doy2jd.m, ell2utm.m, ell2xyz.m, ellradii.m, errell2.m, errell3.m, findfixed.m, gps2jd.m, inverse.m, jd2cal.m, jd2dow.m, jd2doy.m, jd2gps.m, jd2yr.m, lg2ct.m, lg2dg.m, plterrel.m, pltmap.m, pltnet.m, rad2deg.m, rad2dms.m, rad2sec.m, refell.m, rotct2lg.m, rotlg2ct.m, sec2rad.m, simil.m, sph2xyz.m, txyz2ell.m, xyz2ell.m, xyz2ell2.m, xyz2ell3.m, xyz2sph.m, yr2jd.m
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| Comments and Ratings (7) |
| 15 Jun 2007 |
John D'Errico
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| 28 Jun 2007 |
Nice Work
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| 05 Oct 2007 |
Ali Ebrahimi
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| 25 Feb 2008 |
Jagkrich A.warangkul
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| 01 Mar 2008 |
Ray Borough
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| 09 Jul 2008 |
Gene Newton
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| 11 Sep 2008 |
jaime torres
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