How to use

constructCopy

method

in

ucar.unidata.geoloc.projection.sat.MSGnavigation

  @Test
  public void testConstructCopy() throws Exception {
    // These are the same as the values used in MSGnavigation() except for the 2nd, lon0. For the purposes of
    // this test, that's the only argument I care about.
    MSGnavigation msgNav =
        new MSGnavigation(0.0, 180, R_EQ, R_POL, SAT_HEIGHT, SAT_HEIGHT - R_EQ, SAT_HEIGHT - R_EQ);

    Assert.assertEquals(Math.PI, msgNav.getLon0(), 1e-6);  // 180° = π radians.

    // The 2 tests below failed prior to TDS-575 being fixed.

    MSGnavigation msgNavCopy1 = (MSGnavigation) msgNav.constructCopy();
    Assert.assertEquals(Math.PI, msgNavCopy1.getLon0(), 1e-6);  // 180° = π radians.

    MSGnavigation msgNavCopy2 = (MSGnavigation) msgNavCopy1.constructCopy();
    Assert.assertEquals(Math.PI, msgNavCopy2.getLon0(), 1e-6);  // 180° = π radians.
  }
}