snappyrobotics/snappy-ros

A collection of Node-red nodes for connecting with ROS (Robot Operating System)

snappy-gui

The frontend GUI for snappy core

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snappy-ros's Issues

When sending topic, receive an incorrect message. Related to issue #7

Hello,

I got some troubles when sending topic by publisher node.

Use this node-red example
[{"id":"ae61e4d1.67f2d8","type":"ros-publisher","z":"188aa311.be25ed","topicname":"/test_array2","typepackage":"sensor_msgs","typename":"LaserEcho","x":430,"y":640,"wires":[]},{"id":"ce3405fe.1b8e68","type":"ros-subscriber","z":"188aa311.be25ed","topicname":"/test_array2","typepackage":"sensor_msgs","typename":"LaserEcho","x":250,"y":720,"wires":[["be611075.10172"]]},{"id":"be611075.10172","type":"debug","z":"188aa311.be25ed","name":"","active":true,"console":"false","complete":"false","x":430,"y":720,"wires":[]},{"id":"bcb1fbbc.5d7c78","type":"inject","z":"188aa311.be25ed","name":"","topic":"","payload":"{\"echoes\":[1.1,2,3]}","payloadType":"json","repeat":"","crontab":"","once":false,"x":230,"y":640,"wires":[["ae61e4d1.67f2d8"]]}]

When I am sending topic sensor_msgs/LaserEcho

Whether subscribe by node-red subscriber node or command line rostopic echo /test_array2,
I will get empty array array[0]

In the file /ros-publisher/ros-publisher.js    

node.on('input', function(msg) {
    var msgType = rosnodejs.require(config.typepackage).msg[config.typename]

    var x = new msgType()
    x.data = msg.payload <<----

    node.pub.publish(x)
})

I think the problem should be caused by this part of the program?

Do not work in humble (ubuntu 22.04)

Hello. everybody.
I use last version(0.3.4).
I want control property. But it's error state.
snappy-ros/ros-subscriber/ros-subscriber.html
line 63 javascript code. there is an error.
browser error message ar2.length --> ar2 is undefine.
May be window.list is null. So I can't modify ros subscriber.
Could you help me. how to fixed it.

Hi!.. this is working for NODE-RED in ROS Noetic 64 bits?

I have a raspberry pi 4 running Rasp OS 64 bits. Installed NODE-RED and ROS Noetic but does not working. Do not allow fill properties in subscribe and publishing nodes. And also have error installing from node-red.

Some ideas?

Thanks in advanced and happy new year

Only one ROS-node config will work at any given time

TypeError: Cannot read property 'split' of undefined

After installation of snappy-ros packages it gives this error. I tried it with different version of node-red. I couldn't find what breakdown this package. It was working well.
2 Sep 10:04:19 - [info] - snappy-ros:ros-subscriber : TypeError: Cannot read property 'split' of undefined
2 Sep 10:04:19 - [info] - snappy-ros:ros-publisher : TypeError: Cannot read property 'split' of undefined

Not working when running on Ubuntu Mate (Raspberry Pi)

Hello

I'm trying to get subscriptions to work but something is not working as expected.

When I add a Subscribe node the data packagetype is empty and also the datatype combo boxes. What am I doing wrong. The robot/ROS is working fine, are there any dependencies for rosnodejs except running Kinteic version of ROS?

I'm running node version 4.2.6 if that could be a problem
pabi@pabi-desktop:~/.node-red$ node -v
v4.2.6

[ERROR] [1497473691.086] (ros.rosnodejs): Exception trying to subscribe to topic /left_rpm
[INFO] [1497473691.691] (ros): Connected to master at http://localhost:11311!
[WARN] [1497473691.703] (ros): Unable to setup ros logging stream
[WARN] [1497473691.711] (ros): Unable to setup ros logging services
[ERROR] [1497473691.779] (ros.rosnodejs): Exception trying to subscribe to topic /rgb

I haven't used rosnodejs but I guess it need to generate the message types in some way?

Can not output complete topic msg.

Hi
When I subscribing topic like std_msgs/Int32MultiArray.

std_msgs/MultiArrayLayout layout
int32[] data

The node only output int32[] data .
Lost contents of layout.

Similar looks and feels with existing Node RED nodes

Hi there,

I was debugging a Node RED flow from my colleague and realise that your nodes have very a similar look and feel to an existing Node RED node that I wrote: node-red-contrib-ros. This has caused us a little confusion while working with our project.

Could you please make an update to your nodes so that it looks a little bit different to avoid later inconveniences?

In particular, you can change your colour a little bit.

And thanks for the nodes, they're very well made. Keep up the work.

Thank you very much.