Package com.nr.fft

Examples of com.nr.fft.WrapVecDoub


    boolean localflag=false, globalflag=false;

    // Test Wrapdouble[], interface1
    System.out.println("Testing WrapVecDoub[], interface1");

    WrapVecDoub data = new WrapVecDoub(2*N);
    for (i=0;i<N;i++) data.set(i,new Complex(2*i,2*i+1));
    for (i=0;i<N;i++)
      localflag = localflag || (data.real(i) != 2*i) || (data.imag(i) != 2*i+1);
    globalflag = globalflag || localflag;
    if (localflag) {
      fail("*** WrapVecDoub[], interface1: Failure to write complex, and read with .real() and .imag()");
     
    }

    for (i=0;i<N;i++) {
      data.setReal(i,2.0*(N-1)-2.0*i+1.0);
      data.setImag(i,2.0*(N-1)-2.0*i);
    }
    for (i=0;i<N;i++)
      localflag = localflag || (!data.get(i).equals(new Complex(2.0*(N-1)-2.0*i+1.0,2.0*(N-1)-2.0*i)));
    globalflag = globalflag || localflag;
    if (localflag) {
      fail("*** WrapVecDoub[], interface1: Failure to write with .real() and .imag(), and read complex");
     
    }

    // test conversion operator
    localflag = localflag || maxel(data.get()) != 2.0*N-1.0;
    globalflag = globalflag || localflag;
    if (localflag) {
      fail("*** WrapVecDoub[], interface1: Failure to convert WrapVecDoub[] to double[]");
     
    }

    // test the periodic indexing
    for (i=0;i<N;i++)
      localflag = localflag || data.get(i).sub(data.get(i-N)).abs()!= 0;
    globalflag = globalflag || localflag;
    if (localflag) {
      fail("*** WrapVecDoub[], interface1: Failure of indexing to have period of N");
     
    }
   
    // Test WrapVecDoub[], interface2
    System.out.println("Testing WrapVecDoub[], interface2");
    double[] dat = new double[2*N];
    for (i=0;i<2*N;i++) dat[i]=i;
    WrapVecDoub data2 = new WrapVecDoub(dat);

    for (i=0;i<N;i++)
      localflag = localflag || (data2.real(i) != 2*i) || (data2.imag(i) != 2*i+1);
    globalflag = globalflag || localflag;
    if (localflag) {
      fail("*** WrapVecDoub[], interface2: Incorrect values recovered with .real() and .imag() from initialized WrapVecDoub[]");
     
    }

    for (i=0;i<N;i++)
      localflag = localflag || !data2.get(i).equals(new Complex(2.0*i,2.0*i+1.0));
    globalflag = globalflag || localflag;
    if (localflag) {
      fail("*** WrapVecDoub[], interface: Incorrect values recovered with [] from initialized WrapVecDoub[]");
     
    }
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