Package sk.fiit.jim.math

Examples of sk.fiit.jim.math.Vector3D.negate()

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    //                        (Y_2 - Y_1) . (Y_2 - Y_1)
    Vector3D z2 = z1.subtract(y2MinusY1.crossProduct(z1.subtract(y1)).crossProduct(y2MinusY1).divide(y2MinusY1.dotProduct(y2MinusY1)));
    Vector3D zAxis = z1.subtract(z2).toUnitVector();
   
    if (absolute.get(order[2]).getZ() == 0.0)
      zAxis = zAxis.negate();
     
    Vector3D xAxis = yAxis.crossProduct(zAxis).toUnitVector();
   
    double rotationX = asin(-xAxis.getZ());
    double rotationZ = atan2( -xAxis.rotateOverX(rotationX).getY() / cos(rotationX), xAxis.rotateOverX(rotationX).getX() / cos(rotationX));
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    assertThat(one.add(cartesian(0, 0, 0)), is(equalTo(one)));
    assertThat(one.add(cartesian(1, 0, 0)), is(equalTo(cartesian(2, 1, 1))));
    assertThat(one.multiply(5.0), is(cartesian(5, 5, 5)));
    assertThat(one.divide(0.2), is(equalTo(cartesian(5, 5, 5))));
    assertThat(one.subtract(cartesian(0, 1, 0)), is(equalTo(cartesian(1, 0, 1))));
    assertThat(one.negate(), is(equalTo(cartesian(-1, -1, -1))));
    assertThat(one.addX(1.0), is(equalTo(cartesian(2, 1, 1))));
    assertThat(one.addY(-1.0), is(equalTo(cartesian(1, 0, 1))));
    assertThat(one.addZ(0.0), is(one));
//    original vector should remain the same
    assertThat(one, is(one));
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    //                        (Y_2 - Y_1) . (Y_2 - Y_1)
    Vector3D z2 = z1.subtract(y2MinusY1.crossProduct(z1.subtract(y1)).crossProduct(y2MinusY1).divide(y2MinusY1.dotProduct(y2MinusY1)));
    Vector3D zAxis = z1.subtract(z2).toUnitVector();

    if (absolute.get(order[2]).getZ() == 0.0)
      zAxis = zAxis.negate();

    Vector3D xAxis = yAxis.crossProduct(zAxis).toUnitVector();

    double rotationX = asin(-xAxis.getZ());
    double rotationZ = atan2( -xAxis.rotateOverX(rotationX).getY() / cos(rotationX), xAxis.rotateOverX(rotationX).getX() / cos(rotationX));
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