ethz-asl / unreal_cv_ros Goto Github PK

I think the link on line 69 in the readme should be changed from "https://wiki.unrealengine.com/Building_On_Linux" to "https://ue4community.wiki/legacy/building-on-linux-qr8t0si2" or "https://docs.unrealengine.com/en-US/SharingAndReleasing/Linux/BeginnerLinuxDeveloper/SettingUpAnUnrealWorkflow/index.html".

The old link does not work anymore.

Hi, thanks for ur good work! But I have some questions...
In unreal_ros_client.py. I noticed that in the transformation between Unreal and ROS, there is a unit transformation(cm <->m). But in the sensor_model.py, there is no transformation like it. So When I set maximum_distance like 5, all points are almost removed because UnrealCV will return depth in cm. Is that an on-purpose design? Or my misunderstanding. Another question, I think the flatten distance and the maximum distance do the same job, why do we need 2 parameters?

The data set always fails to download, can you provide another download method, such as Google Drive. Thanks!

I am trying to run unreal_cv_ros with voxblox. When I try to use WASD to control the camera, this problem occurs:
ERROR:__init__:174:No message handler to handle message with length 7 Exception in thread Thread-6: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner self.run() File "/opt/ros/kinetic/lib/python2.7/dist-packages/rospy/timer.py", line 235, in run self._callback(TimerEvent(last_expected, last_real, current_expected, current_real, last_duration)) File "/home/wlz/vox_ws/src/unreal_cv_ros/unreal_cv_ros/src/unreal_ros_client.py", line 216, in test_callback self.publish_images(timestamp) File "/home/wlz/vox_ws/src/unreal_cv_ros/unreal_cv_ros/src/unreal_ros_client.py", line 237, in publish_images self.pub.publish(msg) File "/opt/ros/kinetic/lib/python2.7/dist-packages/rospy/topics.py", line 886, in publish raise ROSSerializationException(str(e)) ROSSerializationException: field depth_data must be of type str
Then everything goes wrong. It seems like something wrong with the Client.
It won't happen if I run example_mav.launch or if I do not move the camera.
Does any body know how to sovle this problem?