std_marker_demo.py

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#!/usr/bin/python

import rospy
from easy_markers.generator import *

if __name__=='__main__':
    rospy.init_node('some_markers')
    pub = rospy.Publisher('/visualization_marker', Marker)
    gen = MarkerGenerator()
    gen.ns = '/awesome_markers'
    gen.type = Marker.SPHERE_LIST
    gen.scale = [.3]*3
    gen.frame_id = '/base_link'
   
    while not rospy.is_shutdown():
        gen.counter = 0
        t = rospy.get_time()

        gen.color = [1,0,0,1]
        m = gen.marker(points= [(0, i, (i+t)%5.0) for i in range(10)])
        pub.publish(m)
        gen.color = [0,1,0,1]
        m = gen.marker(points= [(0, i, (i-t)%5.0) for i in range(10)])
        pub.publish(m)
        rospy.sleep(.1)