Comments (3)
You can use the grid_map_visualization node to convert a grid map topic into several others including an occupancy grid. Most of the grid_map demos do this in their launch file.
Also, you can include grid_map_ros/GridMapRosConvertor.hpp to convert a grid_map to other ros representations including a costmap2d.
from grid_map.
Thank you for your reply. Honestly, I am quite versatile with python and ros and not with c ++ and im quite unsure how to use this node from the repo, could you please explain a bit elaborately so that I can try it out? I am currently working on my thesis and it would be really helpful for me to implement this.
Thanks!
from grid_map.
Looking at it again, the toCostmap
function is only available in the ros2 branch. You can use the grid_map_visualization
node to output a occupancy grid like shown here (launch) for traversability. Then use a costmap_2d_node
with a static layer listening to the occupancy grid topic.
Or if you want to directly output a costmap2d. I think you can use Costmap2DConverter
. Pseudo code:
// variables
grid_map::GridMap map;
costmap_2d::Costmap2D outputMap;
grid_map::Costmap2DConverter<grid_map::GridMap> converter;
// initialize
converter.initializeFromGridMap(grid, costmap);
// create costmap
converter.setCostmap2DFromGridMap(grid, "layer name", costmap);
from grid_map.
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from grid_map.