Commit 7ee3c97b authored by Jesse Mapel's avatar Jesse Mapel
Browse files

Fixed caching 0 degree polynomials (#4546) 

* Fixed caching single position

* Added changelog
parent e5def871

isis/src/base/objs/SpicePosition/SpicePosition.cpp

+1 −1
Original line number Diff line number Diff line
@@ -762,7 +762,7 @@ namespace Isis { 
      p_et = p_cacheTime[0];

      SetEphemerisTime(p_et);

      std::vector<ale::State> stateCache;

      stateCache.push_back(p_coordinate);

      stateCache.push_back(ale::Vec3d(p_coordinate));

      std::vector<double> timeCache;

      timeCache.push_back(p_cacheTime[0]);

      if (m_state != NULL) {

isis/src/base/objs/SpicePosition/SpicePosition.truth

+5 −0
Original line number Diff line number Diff line
@@ -384,3 +384,8 @@ Velocity (J) = 1 1 1 
Test loading cache from an ALE ISD with non-SPICE SpicePosition

**PROGRAMMER ERROR** SpicePosition::LoadCache(json) only supports Spice source.



Test loading cache from 0th degree polynomial

Source = 1

Has velocity? No

Time           = 1

Spacecraft (J) = 1 2 3

isis/src/base/objs/SpicePosition/unitTest.cpp

+23 −0
Original line number Diff line number Diff line
@@ -354,4 +354,27 @@ int main(int argc, char *argv[]) { 
  }



  cout <<endl;



  // Test loading cache from 0th degree polynomial

  cout << "Test loading cache from 0th degree polynomial" << endl;

  json zeroDegreeIsd = {{"spk_table_start_time"    , 1.0},

                        {"spk_table_end_time"      , 1.0},

                        {"spk_table_original_size" , 1},

                        {"ephemeris_times"       , {1.0}},

                        {"positions"            , {{1.0, 2.0, 3.0}}}};

  SpicePosition zeroDegreePoly(-94, 499);

  zeroDegreePoly.LoadCache(zeroDegreeIsd);

  zeroDegreePoly.ComputeBaseTime();

  zeroDegreePoly.SetPolynomialDegree(0);

  zeroDegreePoly.SetPolynomial();

  Table zeroDegreeTable = zeroDegreePoly.Cache("TestZeroDegree");

  SpicePosition singlePosition(-94, 499);

  singlePosition.LoadCache(zeroDegreeTable);

  cout << "Source = " << singlePosition.GetSource() << endl;

  cout << "Has velocity? " << (singlePosition.HasVelocity() ? "Yes" : "No") << endl;

  singlePosition.SetEphemerisTime(1.0);

  vector<double> singlePos = singlePosition.Coordinate();

  cout << "Time           = " << 1.0 << endl;

  cout << "Spacecraft (J) = " << singlePos[0] << " " << singlePos[1] << " " << singlePos[2] << endl;



}