@Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        PointValue that = (PointValue) o;

        if (Float.compare(that.diffX, diffX) != 0) return false;
        if (Float.compare(that.diffY, diffY) != 0) return false;
        if (Float.compare(that.originX, originX) != 0) return false;
        if (Float.compare(that.originY, originY) != 0) return false;
        if (Float.compare(that.x, x) != 0) return false;
        if (Float.compare(that.y, y) != 0) return false;
        if (!Arrays.equals(label, that.label)) return false;

        return true;
    }
Set target values that should be reached when data animation finish then call {@link Chart#startDataAnimation()}
hellocharts-library/src/lecho/lib/hellocharts/model/PointValue.java