Program Listing for File draw_trajectories.h

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/*
 * Copyright 2016 The Cartographer Authors
 *
 * 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.
 */

#ifndef CARTOGRAPHER_IO_DRAW_TRAJECTORIES_H_
#define CARTOGRAPHER_IO_DRAW_TRAJECTORIES_H_

#include "cairo/cairo.h"
#include "cartographer/io/color.h"
#include "cartographer/mapping/proto/trajectory.pb.h"
#include "cartographer/transform/rigid_transform.h"

namespace cartographer {
namespace io {

using PoseToPixelFunction =
    std::function<Eigen::Array2i(const transform::Rigid3d& pose)>;

// Draws the 'trajectory' with the given 'color' onto 'surface'. The
// 'pose_to_pixel' function must translate a trajectory node's position into the
// pixel on 'surface'.
void DrawTrajectory(const mapping::proto::Trajectory& trajectory,
                    const FloatColor& color,
                    const PoseToPixelFunction& pose_to_pixel,
                    cairo_surface_t* surface);

}  // namespace io
}  // namespace cartographer

#endif  // CARTOGRAPHER_IO_DRAW_TRAJECTORIES_H_