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2011-05-16 12:21:47 -0500 | marked best answer | Updating Publishers from CTurtle to Diamondback Looking at the cturtle code path. I don't see any constructor for std_msgs::String for instance which should have allowed for the conversion. Nor can I see any code path for for publisher::publish that would allow it separately. I would expect that the code you posted would not work in CTurtle either. I would go back and double check that it worked in the first place. If it really does work, if you're using eclipse, follow the |
2011-05-12 08:50:37 -0500 | received badge | ● Nice Question (source) |
2011-05-12 06:27:53 -0500 | commented answer | Updating Publishers from CTurtle to Diamondback Ok. So I haven't tracked down how it *works* in CTurtle yet, but I know why it doesn't work in Diamondback. It's the ROS_ASSERT_MSG at line 111 of publisher.h that throws the error. Those ROS_ASSERT_MSG were not present in the publisher.h in CTurtle... |
2011-05-12 02:23:39 -0500 | commented answer | Updating Publishers from CTurtle to Diamondback Eric, I agree that rospy is probably the reason someone wrote this code in the first place, but I can confirm that it absolutely does work in roscpp in CTurtle. I will see if I can track down the invocation or something similar. |
2011-05-10 06:31:27 -0500 | received badge | ● Student (source) |
2011-05-10 01:23:38 -0500 | asked a question | Updating Publishers from CTurtle to Diamondback Hi, I'm in the process of migrating some other people's CTurtle code to Diamondback (while learning ROS at the same time), and I'd like to confirm some behaviour that I haven't seen documented. In the CTurtle code, there are a lot of simple publishers that use std_msgs, such as: or When these are called however, it's not with a std_msgs:: data type, but instead the base data type, e.g.: or This code worked fine under CTurtle, but now that I'm trying to port it to Diamondback it treats the std::string/float32 as a ROS message and as a result throws an error. Specifically: This is easily fixed by pushing the data into the message variable, for e.g.: But I'm just curious if this is an intended change or if I'm missing something? Thanks! |