Commit 7af5d8cb authored by Oleg Dzhimiev's avatar Oleg Dzhimiev
Browse files

tested E^2 calced via eigen vs short formula

parent ae181bee

js/x3dom_deltas.js

+10 −1
Original line number Original line Diff line number Diff line
@@ -166,7 +166,7 @@ function x3dom_delta_markers(){ 
  E = E.multComponents(new x3dom.fields.SFVec3f(1/es_a, 1/es_b, 1/es_c));

  E = E.multComponents(new x3dom.fields.SFVec3f(1/es_a, 1/es_b, 1/es_c));





  console.log(E.toString());

  console.log(E.toString());

  console.log(E.length()*E.length());

  console.log("E^2 from eigen: " +E.length()*E.length());





  // scale the result ellipsoid so it with touch another marker

  // scale the result ellipsoid so it with touch another marker

  // and it did - it only tests that the scale is correct

  // and it did - it only tests that the scale is correct
@@ -177,6 +177,15 @@ function x3dom_delta_markers(){ 
    Oz: RES.e2().multiply(E.length()*es_c)

    Oz: RES.e2().multiply(E.length()*es_c)

  },transparency=0.7);

  },transparency=0.7);





  // alternative calculations where E^2 = delta^T x C^-1 x delta

  var delta = e1_c.subtract(e2_c);

  var Ci = C.inverse();



  var Ci_x_delta = Ci.multMatrixVec(delta);

  var E2 = delta.dot(Ci_x_delta);



  console.log("E^2 from d^T x C^-1 x d: "+E2);



  return 0;

  return 0;





}

}