Naveed Usmani

[grid_map_costmap_2d] Costmap2DConverter - costTranslationTable for unknown cells

1

In [Costmap2DConverter](https://github.com/ethz-asl/grid_map/blob/master/grid_map_costmap_2d/include/grid_map_costmap_2d/Costmap2DConverter.hpp), [addLayerFromCostmap2D](https://github.com/ethz-asl/grid_map/blob/master/grid_map_costmap_2d/include/grid_map_costmap_2d/Costmap2DConverter.hpp#L153) uses [costTranslationTable](https://github.com/ethz-asl/grid_map/blob/master/grid_map_costmap_2d/include/grid_map_costmap_2d/Costmap2DConverter.hpp#L57) to convert values. However this converts `costmap_2d::NO_INFORMATION (255)` into `-1.0` which later if translated [toOccupancyGrid](https://github.com/ethz-asl/grid_map/blob/master/grid_map_ros/src/GridMapRosConverter.cpp#L251), this value will be [converted to 0](https://github.com/ethz-asl/grid_map/blob/master/grid_map_ros/src/GridMapRosConverter.cpp#L282). The side effect...

adds protocol key to scan

2

It is required in my project. Might be useful for somebody else too. Reported in [#96](https://github.com/rockymeza/wifi/issues/96).

Design by YAML

5

What do you think about the generating trees by parsing yaml file. something like ``` root: name: Reality type: composites.Parallel children: child_a child_a: name: My Timer type: timer.Timer duration: 5.0...

Just planning to take a step from costmap_2d to gridmap/costmap. Wondering if there is already a functionality/layer like [ObstacleLayer in costmap_2d](http://wiki.ros.org/costmap_2d/hydro/obstacles). If not, would it make sense to have it...

Unable to open some workspaces

4

Some of my workspaces don't open in RoboWare Studio resulting in: ``` Path is not ROS workspace The path '/home/me/ws' does not seem to be an effective ROS Workspace on...