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clarify comment (#1196)

master
gaschler 2018-06-15 13:06:02 +02:00 committed by Wally B. Feed
parent 0e25fafc47
commit 849f2a66ac
1 changed files with 5 additions and 2 deletions
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7
cartographer/mapping/internal/2d/pose_graph_2d.cc
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@ -702,12 +702,15 @@ PoseGraph2D::GetLandmarkNodes() const {
std::map<int, PoseGraphInterface::TrajectoryData> std::map<int, PoseGraphInterface::TrajectoryData>
PoseGraph2D::GetTrajectoryData() const { PoseGraph2D::GetTrajectoryData() const {
return {}; // Not implemented yet in 2D. // The 2D optimization problem does not have any 'TrajectoryData'.
return {};
} }
sensor::MapByTime<sensor::FixedFramePoseData> sensor::MapByTime<sensor::FixedFramePoseData>
PoseGraph2D::GetFixedFramePoseData() const { PoseGraph2D::GetFixedFramePoseData() const {
return {}; // Not implemented yet in 2D. // FixedFramePoseData is not yet implemented for 2D. We need to return empty
// so serialization works.
return {};
} }
std::vector<PoseGraphInterface::Constraint> PoseGraph2D::constraints() const { std::vector<PoseGraphInterface::Constraint> PoseGraph2D::constraints() const {