RemoveInCollisionGoals

Looks over the input port goals and removes any waypoint that has a point or footprint cost above a certain threshold. This may be used to cull goal points passed from ComputePathThroughPoses to avoid waiting indefinitely on occupied waypoints.

Input Ports

service_name

Type

Default

string

/global_costmap/get_cost_global_costmap

Description

costmap service name responsible for getting the cost.

input_goals

Type

Default

geometry_msgs::msg::PoseStamped

N/A

Description

A vector of goals to check if in collision

cost_threshold

Type

Default

double

254.0

Description

The cost threshold above which a waypoint is considered in collision and should be removed. If use_footprint = false, consider setting to 253 for occupied.

use_footprint

Type

Default

bool

true

Description

Whether to use the footprint cost or the point cost.

consider_unknown_as_obstacle

Type

Default

bool

false

Description

Whether to consider unknown cost (255) as obstacle.

Output Ports

output_goals

Type

Default

geometry_msgs::msg::PoseStamped

N/A

Description

A vector of goals containing only those that are not in collision.

Example

<RemoveInCollisionGoals input_goals="{goals}" output_goals="{goals}" cost_threshold="254.0" use_footprint="true" service_name="/global_costmap/get_cost_global_costmap" />