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webots_plugin/20231126_53.txt
nano hello_webots/resource/my_robot.urdf <?xml version="1.0" ?> <robot name="My robot"> <webots> <plugin type="hello_webots.my_webot_driver.MyRobotDriver" /> </webots> </robot>
webots_plugin/Ros2RangeFindercpp_14.txt
if (mCameraInfoPublisher->get_subscription_count() > 0) mCameraInfoPublisher->publish(mCameraInfoMessage);
webots_plugin/Ros2RangeFindercpp_13.txt
if (mIsEnabled) { publishImage(); publishPointCloud(); }
webots_plugin/20231126_83.txt
def main(args=None): rclpy.init(args=args) avoider = ObstacleAvoider() rclpy.spin(avoider) # Destroy the node explicitly # (optional - otherwise it will be done automatically # when the garbage collector destroys the node object) avoider.destroy_node() ...
webots_plugin/InstallationUbuntuht_26.txt
Alternatively, you can also let ` webots_ros2 ` download and install Webots automatically. This option appears when you launch an example of the package and no Webots installation is found.
webots_plugin/20231126_77.txt
In ` my_robot.urdf ` replace the whole contents with:
webots_plugin/InstallationUbuntuht_36.txt
Install ` webots_ros2 ` distributed package Install ` webots_ros2 ` from sources
webots_plugin/20231126_91.txt
This will add an entry point for the ` obstacle_avoider ` node.
webots_plugin/20231126_31.txt
![ROS2 Webots Robot Simulation](/assets/images/ROS2_Webots_01-f73ff01f788c47cf0979b3848ff6cfa7.webp)
webots_plugin/20231126_86.txt
The node sends a message to the ` /cmd_vel ` topic when a measurement from the right sensor is received. The ` command_message ` will register at least a forward speed in ` linear.x ` in order to make the robot move when no obstacle is detected. If any of the two sensors detect an obstacle, ` command_message ` will als...
webots_plugin/InstallationUbuntuht_15.txt
* Background
webots_plugin/20231126_64.txt
### Test Run
webots_plugin/InstallationUbuntuht_44.txt
cd ~/ros2_ws git clone --recurse-submodules https://github.com/cyberbotics/webots_ros2.git src/webots_ros2
webots_plugin/20231126_92.txt
Go to the file ` robot_launch.py ` and add the obstacle avoider to ` generate_launch_description() ` with:
webots_plugin/20231126_43.txt
Open ` hello_webots/hello_webots/my_webot_driver.py ` and replace its contents with the following:
webots_plugin/Ros2RangeFindercpp_10.txt
// Point cloud publisher mPointCloudPublisher = mNode->create_publisher<sensor_msgs::msg::PointCloud2>(mTopicName + mPointCloudSuffix, rclcpp::SensorDataQoS().reliable()); mPointCloudMessage.header.frame_id = mFrameName; m...
webots_plugin/20231126_14.txt
![TST, Hongkong](/assets/images/photo- kt443t6d_64hdh43hfh6dgjdfhg4_d-252551beac0b36b4ba53ccd380897f8e.jpg)
webots_plugin/20231126_58.txt
The ` WebotsLauncher ` object is a custom action that allows you to start a Webots simulation instance. You have to specify in the constructor which world file the simulator will open.
webots_plugin/Ros2RangeFindercpp_5.txt
mCameraInfoSuffix = parameters.count("cameraInfoSuffix") ? parameters["cameraInfoSuffix"] : "/camera_info"; mImageSuffix = parameters.count("imageSuffix") ? parameters["imageSuffix"] : "/image"; mPointCloudSuffix = parameters.count("pointCloudSuffix") ? parameters["pointCloudSuffix"] : "/point_cloud";
webots_plugin/InstallationUbuntuht_4.txt
* [ Setting up a robot simulation (Basic) ](Setting-Up-Simulation-Webots-Basic.html) * [ Setting up a robot simulation (Advanced) ](Setting-Up-Simulation-Webots-Advanced.html) * [ Gazebo ](../Gazebo/Simulation-Gazebo.html) * [ Setting up a robot simulation (Gazebo) ](../Gazebo/Gaze...
webots_plugin/20231126_109.txt
* Installation * Robot Simulation and Control * Create the Package Structure * Edit the Driver Plugin * Declare the Plugin * Create the Launch File * Add added Files to Plugin Setup * Test Run * Integrating Sensors * Updating the Plugin Declaration * Creating a ROS Sensor...
webots_plugin/20231126_30.txt
ros2 launch webots_ros2_universal_robot multirobot_launch.py
webots_plugin/InstallationUbuntuht_56.txt
export WEBOTS_HOME=/usr/local/webots
webots_plugin/20231126_87.txt
def __right_sensor_callback(self, message): self.__right_sensor_value = message.range command_message = Twist() command_message.linear.x = 0.1 if self.__left_sensor_value < 0.9 * MAX_RANGE or self.__right_sensor_value < 0.9 * MAX_RANGE: command_me...
webots_plugin/Ros2RangeFindercpp_0.txt
// Copyright 1996-2023 Cyberbotics Ltd. // // 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 agr...
costmap_subscript/nav2costmap2d2Fplugi_12.txt
RCLCPP_INFO( logger_, "Subscribing to the map topic (%s) with %s durability", map_topic_.c_str(), map_subscribe_transient_local_ ? "transient local" : "volatile");
costmap_subscript/3017_544.txt
7 tasks
costmap_subscript/3017_145.txt
Sorry, something went wrong.
costmap_subscript/3017_452.txt
edited
costmap_subscript/3017_102.txt
Member
costmap_subscript/indexhtml_35.txt
This state will allow the node to process information and be fully setup to run. The configuration stage, triggering the ` on_configure() ` method, will setup all parameters, ROS networking interfaces, and for safety systems, all dynamically allocated memory. The activation stage, triggering the ` on_activate() ` met...
costmap_subscript/3017_261.txt
[ ![@SteveMacenski](https://avatars.githubusercontent.com/u/14944147?s=80&u=0925d37e9d3569c71d930114b66e6394c2efb3c6&v=4) ](/SteveMacenski)
costmap_subscript/indexhtml_4.txt
* [ Common Sensor Messages ](../setup_guides/sensors/setup_sensors.html#common-sensor-messages) * [ Simulating Sensors using Gazebo ](../setup_guides/sensors/setup_sensors.html#simulating-sensors-using-gazebo) * [ Adding Gazebo Plugins to a URDF ](../setup_guides/sensors/setup_sensors.html#adding-...
costmap_subscript/3017_294.txt
Sorry, something went wrong.
costmap_subscript/nav2costmap2d2Fplugi_54.txt
if (!layered_costmap_->isRolling()) { // if not rolling, the layered costmap (master_grid) has same coordinates as this layer if (!use_maximum_) { updateWithTrueOverwrite(master_grid, min_i, min_j, max_i, max_j); } else { updateWithMax(master_grid, min_i, min_j, max_i, max_j); } } else {...
costmap_subscript/3017_159.txt
1. some mostly static object, like an obstacle zone, which is set once and then stays. Here, the node that configures the obstacle zone wants a confirmation that it was actually set. 2. moving objects, such as other robots, that constantly change. Here, we need to verify that the information about their footprint ...
costmap_subscript/3613_30.txt
# Saved searches
costmap_subscript/3613_153.txt
2 participants
costmap_subscript/3017_388.txt
[ ![@AlexeyMerzlyakov](https://avatars.githubusercontent.com/u/60094858?s=80&u=bb82ce480f0854e3758a8c4f07129af932258cb1&v=4) ](/AlexeyMerzlyakov)
costmap_subscript/addingsubscribertocu_61.txt
[ about ](/about/) | [ faq ](/faq/) | [ help ](/help/ "help") | [ privacy policy ](/privacy/) | [ terms of service ](/terms/)
costmap_subscript/3017_278.txt
> I suppose we could support both services and topics, though not my ideal > outcome. I would want clear warnings to users informing them that topics are > not recommended, but may be useful in certain circumstances.
costmap_subscript/3613_40.txt
[ ros-planning ](/ros-planning) / **[ navigation2 ](/ros- planning/navigation2) ** Public
costmap_subscript/indexhtml_118.txt
© Copyright 2020.
costmap_subscript/indexhtml_56.txt
The task of a planner is to compute a path to complete some objective function. The path can also be known as a route, depending on the nomenclature and algorithm selected. Two canonical examples are computing a plan to a goal (e.g. from current position to a goal) or complete coverage (e.g. plan to cover all free spac...
costmap_subscript/3017_80.txt
**[ SteveMacenski ](/SteveMacenski) ** commented Jun 15, 2022 •
costmap_subscript/3017_214.txt
**[ SteveMacenski ](/SteveMacenski) ** commented Oct 5, 2022 •
costmap_subscript/indexhtml_102.txt
Various costmap layers are implemented as pluginlib plugins to buffer information into the costmap. This includes information from LIDAR, RADAR, sonar, depth, images, etc. It may be wise to process sensor data before inputting it into the costmap layer, but that is up to the developer.
costmap_subscript/3017_355.txt
* Proc1. Best performance for this kind of task * Proc2. Feature intention clarity and simplicity * Cons. Can not cover OccupancyGrid maps
costmap_subscript/addingsubscribertocu_46.txt
Asked: ** 2023-04-10 14:45:27 -0500 **
costmap_subscript/addingsubscribertocu_43.txt
Follow
costmap_subscript/3017_401.txt
> I think this was miscategorized. That's a con for D2. D1 is far more simple > conceptually and enables re-use of existing costmap filters just with the > input being from the vector object server, not the map file.
costmap_subscript/3613_130.txt
**[ dharanish-nh ](/dharanish-nh) ** commented Jun 12, 2023
costmap_subscript/3613_117.txt
Sorry, something went wrong.
costmap_subscript/3017_247.txt
[ ![@SteveMacenski](https://avatars.githubusercontent.com/u/14944147?s=80&u=0925d37e9d3569c71d930114b66e6394c2efb3c6&v=4) ](/SteveMacenski)
costmap_subscript/3017_46.txt
**Have a question about this project?** Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
costmap_subscript/3017_108.txt
Great to hear it and look forward to hearing about it! --- 👍 1 GMahmoud reacted with thumbs up emoji
costmap_subscript/3613_81.txt
[planner_server-6] [INFO] [1686316127.923998800] [planner_server]: Planner Server has GridBased planners available. [lifecycle_manager-11] [INFO] [1686316127.932865559] [lifecycle_manager_navigation]: Configuring behavior_server [behavior_server-7] [INFO] [1686316127.933067396] [behavior_server]: Configuri...
costmap_subscript/3017_351.txt
* * *
costmap_subscript/indexhtml_104.txt
### Costmap Filters ¶
costmap_subscript/3017_160.txt
In case 2), the sender (robot B) constantly produces new information. So, over the (unstable) network I don't think there's a need for retransmitting, as new information will be available soon anyway. Now, the "up-to-date verification" needs to be on the receiver side (robot A). I think it makes sense to do it in a s...
costmap_subscript/3017_441.txt
How would you communicate to the client which shape should be used for which application to interpret the costs?
costmap_subscript/3613_74.txt
I am using a custom costmap plugin for creating high costs around the people(gazebo actor model). I am using the social layer [ github_repo ](https://github.com/robotics-upo/nav2_social_costmap_plugin) . However, this code was built for ros2 foxy and I am using ros2 humble. I made some changes to updatecosts and upda...
costmap_subscript/3613_105.txt
Member
costmap_subscript/3017_286.txt
In this case we to utilize only polygons, the design will be really simple, and we do not need to have that universal ` Shape.msg ` . Pretty good option, if nobody minds.
costmap_subscript/addingsubscribertocu_54.txt
[ service call without blocking other callbacks ](/question/379465/service- call-without-blocking-other-callbacks/)
costmap_subscript/addingsubscribertocu_17.txt
* [ 1.ros2 ](/questions/scope:all/sort:activity-desc/tags:1.ros2/page:1/)
costmap_subscript/nav2costmap2d2Fplugi_42.txt
unsigned int di = 0; for (unsigned int y = 0; y < update->height; y++) { unsigned int index_base = (update->y + y) * size_x_; for (unsigned int x = 0; x < update->width; x++) { unsigned int index = index_base + x + update->x; costmap_[index] = interpretValue(update->data[di++]); } }
costmap_subscript/3017_347.txt
Collaborator
costmap_subscript/3017_72.txt
[ @GMahmoud ](https://github.com/GMahmoud) FYI --- The text was updated successfully, but these errors were encountered:
costmap_subscript/3613_11.txt
By Solution
costmap_subscript/3017_126.txt
For this, robot A would publish the received footprint of robot B on a topic, and this new plugin would then add it to the costmap. I think services would add too much latency here, in case robot B is moving. --- All reactions
costmap_subscript/3017_101.txt
Copy link
costmap_subscript/3613_70.txt
## Bug report
costmap_subscript/nav2costmap2d2Fplugi_3.txt
#include "pluginlib/class_list_macros.hpp" #include "tf2/convert.h" #include "tf2_geometry_msgs/tf2_geometry_msgs.hpp"
costmap_subscript/3017_62.txt
Labels
costmap_subscript/3017_509.txt
One more thing about the design. Since one VO-server node is used to be launched per each filter (e.g. if we are using ` KeepoutFilter ` and ` SpeedFilter ` , we need to have 2 instances of VO-server running), all vector shapes could be described in one launch- file, as ROS-parameters' array:
costmap_subscript/3017_150.txt
What do you think of having a ` stream ` from the client side for this case ? We could make available a ` ros action ` for example in addition to ` request- reply ` for addition and remove of elements. This action will deal with dynamic elements and client could supervisor the process by listening to the feedback t...
costmap_subscript/indexhtml_66.txt
* Interface with a tool
costmap_subscript/3017_541.txt
[ ![@AlexeyMerzlyakov](https://avatars.githubusercontent.com/u/60094858?s=40&u=bb82ce480f0854e3758a8c4f07129af932258cb1&v=4) ](/AlexeyMerzlyakov) [ AlexeyMerzlyakov ](/AlexeyMerzlyakov) mentioned this issue Nov 2, 2023
costmap_subscript/3017_250.txt
###
costmap_subscript/nav2costmap2d2Fplugi_16.txt
void StaticLayer::activate() { }
costmap_subscript/3017_421.txt
**[ AlexeyMerzlyakov ](/AlexeyMerzlyakov) ** commented Feb 7, 2023 •
costmap_subscript/3017_342.txt
All reactions
costmap_subscript/3613_112.txt
Copy link
costmap_subscript/3017_427.txt
Moving forward, we need to have separate input topic, each one per each type of shape: Polygon, BrokenLine and Circle. They e.g. could be automatically generated by user-defined prefix. Something, if we have name of VO-server to be equal to ` /vo_server ` , name of input topics could be:
costmap_subscript/nav2costmap2d2Fplugi_43.txt
has_updated_data_ = true; }
costmap_subscript/3017_256.txt
For circles, I think we'd need some special case for sure. Another question is about pose of the shape. If we want to set a box of points making up a 1m box, do I need to transform them to the pose already or can I have a pose of the center of the shape. I think that's more relevent for the ` add shape ` service than t...
costmap_subscript/3613_60.txt
# robot doesn't navigate in custom costmap layer. #3613
costmap_subscript/3017_218.txt
I looked very briefly at the code, there's alot going on there. If you were to define a ` Polygon ` as a series of connected line segments, I'm not entirely sure why the difference between convex/concave is important (or using so many external polygon libraries). Obviously I'm not in the middle of this development, so ...
costmap_subscript/3017_134.txt
Sorry, something went wrong.
costmap_subscript/3613_106.txt
###
costmap_subscript/3613_57.txt
Closed
costmap_subscript/3017_75.txt
* 🎉 1 reaction
costmap_subscript/3017_60.txt
# Feature Request: Custom/Virtual Obstacle Layer #3017
costmap_subscript/3613_98.txt
> [planner_server-6] [INFO] [1686316129.043376579] > [global_costmap.global_costmap]: Timed out waiting for transform from > base_link to map to become available, tf error: Lookup would require > extrapolation into the past. Requested time 5.979000 but the earliest data > is at time 6.015000, when looking up transform ...
costmap_subscript/3017_382.txt
It would likely be stored either way (e.g. in the costmap), so its more about the transport.
costmap_subscript/3017_536.txt
Collaborator
costmap_subscript/3017_400.txt
The other question - do we really need these abilities?
costmap_subscript/3017_131.txt
**[ GMahmoud ](/GMahmoud) ** commented Jun 17, 2022
costmap_subscript/3017_417.txt
[ ![@AlexeyMerzlyakov](https://avatars.githubusercontent.com/u/60094858?s=80&u=bb82ce480f0854e3758a8c4f07129af932258cb1&v=4) ](/AlexeyMerzlyakov)