Examples of org.geotools.referencing.datum.DefaultEllipsoid.orthodromicDistance()

Class org.geotools.referencing.datum.DefaultEllipsoid

Examples of org.geotools.referencing.datum.DefaultEllipsoid.orthodromicDistance()

org.geotools.referencing.datum.DefaultEllipsoid.orthodromicDistance()
Returns the orthodromic distance between two geographic coordinates. The orthodromic distance is the shortest distance between two points on a sphere's surface. The default implementation delegates the work to {@link #orthodromicDistance(double,double,double,double)}. @param P1 Longitude and latitude of first point (in decimal degrees). @param P2 Longitude and latitude of second point (in decimal degrees). @return The orthodromic distance (in the units of this ellipsoid).

        for (int i=0; i<100; i++) {
            final double y1 =  -90 + 180*random.nextDouble();
            final double y2 =  -90 + 180*random.nextDouble();
            final double x1 = -180 + 360*random.nextDouble();
            final double x2 = -180 + 360*random.nextDouble();
            final double distance = s.orthodromicDistance(x1, y1, x2, y2);
            assertTrue("Range of legal values", distance>=0 && distance<=circumference);
        }
    }


    /**

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                final double altitude = Math.max(array0[base+2], array0[base+5]);
                final DefaultEllipsoid ellip = DefaultEllipsoid.createFlattenedSphere("Temporary",
                                               ellipsoid.getSemiMajorAxis()+altitude,
                                               ellipsoid.getInverseFlattening(),
                                               ellipsoid.getAxisUnit());
                double orthodromic = ellip.orthodromicDistance(array0[base+0], array0[base+1],
                                                               array0[base+3], array0[base+4]);
                orthodromic = Math.hypot(orthodromic, array0[base+2] - array0[base+5]);
                if (i < orthodromicDistance.length) {
                    assertEquals("Orthodromic distance["+i+']', orthodromicDistance[i], orthodromic, 0.1);
                }

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