ShapeExample.xml

<?xml version="1.0"?>
<!--
 (c) 2005-2015 Copyright, Real-Time Innovations, Inc.  All rights reserved.
 RTI grants Licensee a license to use, modify, compile, and create derivative
 works of the Software.  Licensee has the right to distribute object form only
 for use with RTI products.  The Software is provided "as is", with no warranty
 of any type, including any warranty for fitness for any purpose. RTI is under
 no obligation to maintain or support the Software.  RTI shall not be liable for
 any incidental or consequential damages arising out of the use or inability to
 use the software.
 -->

<dds xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:noNamespaceSchemaLocation="http://community.rti.com/schema/5.1.0/rti_dds_profiles.xsd" version="5.1.0">

    <!-- Qos Library -->
	<qos_library name="QosLibrary">
		<qos_profile name="DefaultProfile" is_default_qos="true">
			<participant_qos>
				<transport_builtin>
				    <mask>UDPV4 | SHMEM</mask>
				</transport_builtin>

				<!-- Turn on monitoring -->
				<!-- Begin Monitoring
				<property>
					<value>
						<element>
							<name>rti.monitor.library</name>
							<value>rtimonitoring</value>
						</element>
						<element>
							<name>rti.monitor.create_function_ptr</name>
							<value>$(NDDS_MONITOR)</value>
						</element>
					</value>
				</property>
				 End Monitoring -->
			</participant_qos>
		</qos_profile>
	</qos_library>

    <!-- types -->
    <types>

	   	<struct name="ShapeType" extensibility="extensible">
			<member name="color" stringMaxLength="128" id="0" type="string" key="true"/>
			<member name="x" id="1" type="long"/>
			<member name="y" id="2" type="long"/>
			<member name="shapesize" id="3" type="long"/>
		</struct>
		<enum name="ShapeFillKind" extensibility="extensible">
			<enumerator name="SOLID_FILL" value="0"/>
			<enumerator name="TRANSPARENT_FILL" value="1"/>
			<enumerator name="HORIZONTAL_HATCH_FILL" value="2"/>
			<enumerator name="VERTICAL_HATCH_FILL" value="3"/>
		</enum>
		<struct name="ShapeTypeExtended" baseType="ShapeType" extensibility="extensible">
			<member name="fillKind" id="4" type="nonBasic" nonBasicTypeName="ShapeFillKind"/>
			<member name="angle" id="5" type="float"/>
		</struct>
    </types>


    <!-- Domain Library -->
    <domain_library name="MyDomainLibrary">
        <domain name="MyDomain" domain_id="0">
            <register_type name="ShapeType" kind="dynamicData" type_ref="ShapeType" />
            <topic name="Square"    register_type_ref="ShapeType"/>

        </domain>

                <domain name="MyDomainOne" domain_id="1">
                    <register_type name="ShapeType" kind="dynamicData" type_ref="ShapeType" />
                    <topic name="Square"    register_type_ref="ShapeType"/>

                </domain>
    </domain_library>


    <!-- Participant library -->
    <participant_library name="MyParticipantLibrary">
      <domain_participant name="Zero" domain_ref="MyDomainLibrary::MyDomain">

        <publisher name="MyPublisher">
				  <data_writer name="MySquareWriter" topic_ref="Square" />
        </publisher>

        <subscriber name="MySubscriber">
          <data_reader name="MySquareReader" topic_ref="Square" />
        </subscriber>

		  </domain_participant>

            <domain_participant name="One" domain_ref="MyDomainLibrary::MyDomainOne">

              <publisher name="MyPublisher">
      				  <data_writer name="MySquareWriter" topic_ref="Square" />
              </publisher>

              <subscriber name="MySubscriber">
                <data_reader name="MySquareReader" topic_ref="Square" />
              </subscriber>

      		  </domain_participant>
   </participant_library>
</dds>

writer.py

##############################################################################
# Copyright (c) 2005-2015 Real-Time Innovations, Inc. All rights reserved.
# Permission to modify and use for internal purposes granted.
# This software is provided "as is", without warranty, express or implied.
##############################################################################
import sys
import os
filepath = os.path.dirname(os.path.realpath(__file__))
sys.path.append(filepath + "/../../../");
import time
import rticonnextdds_connector as rti

connector = rti.Connector("MyParticipantLibrary::Zero", filepath + "/../ShapeExample.xml");
output    = connector.getOutput("MyPublisher::MySquareWriter")

connectorOne = rti.Connector("MyParticipantLibrary::One", filepath + "/../ShapeExample.xml");
outputOne    = connectorOne.getOutput("MyPublisher::MySquareWriter")

for i in range(1,500):
	output.instance.setNumber("x", i);
	output.instance.setNumber("y", i);
	output.instance.setNumber("shapesize", i);
	output.instance.setString("color", "BLUE");
	output.write();
	outputOne.instance.setNumber("x", i*2);
	outputOne.instance.setNumber("y", i*2);
	outputOne.instance.setNumber("shapesize", i*2);
	outputOne.instance.setString("color", "RED");
	outputOne.write();
	time.sleep(2)