/******************************************************************************
 * Copyright 2017 The Apollo Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *****************************************************************************/

/**
 * @file curve1d.h
 **/

#pragma once

#include <string>

namespace apollo {
namespace planning {

// Base type for various types of 1-dimensional curves

class Curve1d {
 public:
  Curve1d() = default;

  virtual ~Curve1d() = default;

  virtual double Evaluate(const std::uint32_t order,
                          const double param) const = 0;

  virtual double ParamLength() const = 0;

  // virtual std::string ToString() const = 0;
};

}  // namespace planning
}  // namespace apollo
