widgets

This module contains useful widgets than can be used for larger applications. In the following example, we use the action client widget to present an interface similar to the default axclient.py program.

from flexx import config
from flexxros import node
from flexxros.node import ROSNode
from flexxros.widgets import ROSActionClientWidget
from flexxros.msg import TestAction, TestFeedback, TestResult
import rospy
import actionlib

node_name = "action_example_interface"
config.hostname = "localhost"
config.port = 8097

class ActionServer(object):

    _feedback = TestFeedback()
    _result = TestResult()

    def __init__(self, name):
        self._as = actionlib.SimpleActionServer(name, TestAction, execute_cb=self.execute_cb, auto_start=False)
        self._as.start()

    def execute_cb(self, goal):
        self._feedback.data = "Got " + goal.data + ", started running..."
        self._as.publish_feedback(self._feedback)
        rospy.sleep(1.)
        self._feedback.data = "Almost done..."
        self._as.publish_feedback(self._feedback)
        rospy.sleep(1.)
        self._result.data = "Success with " + goal.data + "!"
        self._as.set_succeeded(self._result)

class ActionExampleInterface(ROSNode):

    def init(self):
        self.client = ROSActionClientWidget(node_name, "flexxros/Test")

rospy.init_node(node_name, anonymous=True)
server = ActionServer(node_name)
node.spin(ActionExampleInterface)

class flexxros.widgets.ROSActionClientWidget(*init_args, **kwargs)

flx.Widget subclass that presents a widget similar to the normal axclient.py

CSS = ''

JS

alias of ROSActionClientWidget

class flexxros.widgets.ROSDynReconfigWidget(*init_args, **kwargs)

flx.Widget subclass that dynamically creates a form to set parameters through dynamic reconfigure

CSS = ''

JS

alias of ROSDynReconfigWidget

add_children(ev)

action – add_children

class flexxros.widgets.ROSTopicPlotter(*init_args, **kwargs)

flx.Widget subclass that subscribes to a topic and plots it using a flx.PlotWidget

CSS = ''

JS

alias of ROSTopicPlotter