[jsk_fetch_startup] Add fetch gazebo demo using roseus

jsk_fetch_robot/README.md

@@ -101,6 +101,11 @@ roslaunch fetch_gazebo simulation.launch
 roslaunch fetch_moveit_config move_group.launch
 ```
 
+Roseus script can be executed on Gazebo. The whole demo is in `jsk_fetch_gazebo_demo/launch/demo.launch`
+```bash
+roslaunch jsk_fetch_gazebo_demo demo.launch
+```
+
 ## Fetcheus APIs
 
 ### Common

jsk_fetch_robot/jsk_fetch_gazebo_demo/CMakeLists.txt

@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.3)
+project(jsk_fetch_gazebo_demo)
+
+find_package(catkin)
+catkin_package()
+
+install(DIRECTORY euslisp launch config
+  DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
+  USE_SOURCE_PERMISSIONS
+)
+
+if(CATKIN_ENABLE_TESTING)
+  if ("$ENV{ROS_DISTRO}" STRGREATER "lunar")  # >= melodic
+    find_package(catkin REQUIRED COMPONENTS rostest roslaunch)
+    add_rostest(test/jsk_fetch_gazebo_demo.test)
+    add_rostest(test/grasping_objects.test)
+    roslaunch_add_file_check(launch/demo.launch)
+  endif()
+endif()

jsk_fetch_robot/jsk_fetch_gazebo_demo/README.md

@@ -0,0 +1,57 @@
+jsk_fetch_gazebo_demo
+=====================
+
+- This demo is roseus version of [fetch\_gazebo\_demo](https://github.com/fetchrobotics/fetch_gazebo/tree/gazebo9/fetch_gazebo_demo).
+- You can learn how to use roseus and how ROS components are executed. (e.g. pointcloud, navigation, motion planning, ... etc)
+
+## Usage
+- Build this package like [jsk\_fetch\_startup README](https://github.com/jsk-ros-pkg/jsk_robot/tree/master/jsk_fetch_robot#setup-environment)
+```bash
+mkdir -p catkin_ws/src
+cd catkin_ws/src
+git clone https://github.com/jsk-ros-pkg/jsk_robot.git
+rosdep install --from-paths . --ignore-src -y -r
+cd ..
+catkin build jsk_fetch_gazebo_demo
+source devel/setup.bash
+roslaunch jsk_fetch_gazebo_demo demo.launch
+```
+
+- Launch demo
+```bash
+source devel/setup.bash
+roslaunch jsk_fetch_gazebo_demo demo.launch
+```
+
+NOTE
+- fetch\_gazebo is compatible with ROS indigo and melodic, so this repo is compatible with ROS indigo and melodic, too.
+- Fetch in Gazebo9 (melodic) is somehow dark, but it seems no problem.
+
+## Demo
+#### Start of demo
+Fetch generates the costmap (blue and purple thick lines) based on the known room map. AMCL particle (red arrows) is scattered at the beginning.
+
+|Gazebo|Rviz|
+|---|---|
+|![](https://user-images.githubusercontent.com/19769486/78505523-f9f7c180-77ae-11ea-997f-379fdbf94c89.jpg)|![](https://user-images.githubusercontent.com/19769486/78505541-1ac01700-77af-11ea-98eb-e6c1b3e9caaf.png)|
+
+#### Move to table using navigation stacks
+While fetch is moving, AMCL particle (red arrows) come together by comparing laser data (red dotted line) and room map. Navigation path (green line) is calculated based on the costmap.
+
+|Gazebo|Rviz|
+|---|---|
+|![](https://user-images.githubusercontent.com/19769486/78506252-565ce000-77b3-11ea-874d-fd1b966b7d15.jpg)|![](https://user-images.githubusercontent.com/19769486/78505555-3a573f80-77af-11ea-9ad3-e99fa06382be.png)|
+
+#### Recognize obstacles by pointcloud
+Fetch generates collision obstacles (green blocks) based on the table and cube pointcloud.
+
+|Gazebo|Rviz|
+|---|---|
+|![](https://user-images.githubusercontent.com/19769486/78505574-5a86fe80-77af-11ea-803c-d4c45bc4d84d.jpg)|![](https://user-images.githubusercontent.com/19769486/78506589-96bd5d80-77b5-11ea-8220-24e5647998cc.png)|
+
+#### Grasp cube
+Fetch solves IK, moves the arm while avoiding obstacles and grasps the blue cube.
+
+|Gazebo|Rviz|
+|---|---|
+|![](https://user-images.githubusercontent.com/19769486/78505616-9ae67c80-77af-11ea-87d8-dcb0a5714c78.jpg)|![](https://user-images.githubusercontent.com/19769486/78505631-a9cd2f00-77af-11ea-9410-773d85e8081e.png)|