Semiaxes
This zip file contains 2 functions to transform generic (nD) quadratic hyper-surfaces from homogeneous form (that is [x' 1]*E*[x;1]=0) to center form (that is (x'-c')*inv(Q)*(x-c)=1, which is used for example in the ellipsoidal toolbox).Examples:% zero-centered ellipse of semiaxes 1 and 2% center...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (45): quadforms Download |
GIS::Distance::Vincenty Perl module contains Thaddeus Vincenty distance calculations. SYNOPSIS my $calc = GIS::Distance::Vincenty->new(); my $distance = $calc->distance( $lon1, $lat1 => $lon2, $lat2 ); For the benefit of the terminally obsessive (as well as the genuinely needy), Thaddeus...
Platforms: *nix
License: Freeware | Size: 8.19 KB | Download (125): GIS::Distance::Vincenty Download |