rs_d400_and_t265.launch

<launch>
  <arg name="device_type_camera1"    		default="t265"/>
  <arg name="device_type_camera2"    		default="d4.5"/>		<!-- Note: using regular expression. match D435, D435i, D415... -->
  <arg name="serial_no_camera1"    			default=""/>
  <arg name="serial_no_camera2"    			default=""/>
  <arg name="camera1"              			default="t265"/>
  <arg name="camera2"              			default="d400"/>
  <arg name="tf_prefix_camera1"         default="$(arg camera1)"/>
  <arg name="tf_prefix_camera2"         default="$(arg camera2)"/>
  <arg name="initial_reset"             default="false"/>
  <arg name="enable_fisheye"            default="false"/>
  <arg name="color_width"               default="640"/>
  <arg name="color_height"              default="480"/>
  <arg name="depth_width"               default="640"/>
  <arg name="depth_height"              default="480"/>
  <arg name="clip_distance"             default="-2"/>
  <arg name="topic_odom_in"             default="odom_in"/>
  <arg name="calib_odom_file"           default=""/>

  <group ns="$(arg camera1)">
    <include file="$(find realsense2_camera)/launch/includes/nodelet.launch.xml">
      <arg name="device_type"           value="$(arg device_type_camera1)"/>
      <arg name="serial_no"             value="$(arg serial_no_camera1)"/>
      <arg name="tf_prefix"         		value="$(arg tf_prefix_camera1)"/>
      <arg name="initial_reset"         value="$(arg initial_reset)"/>
      <arg name="enable_fisheye1"       value="$(arg enable_fisheye)"/>
      <arg name="enable_fisheye2"       value="$(arg enable_fisheye)"/>
      <arg name="topic_odom_in"         value="$(arg topic_odom_in)"/>
      <arg name="calib_odom_file"       value="$(arg calib_odom_file)"/>
      <arg name="enable_pose"           value="true"/>
    </include>
  </group>

  <group ns="$(arg camera2)">
    <include file="$(find realsense2_camera)/launch/includes/nodelet.launch.xml">
      <arg name="device_type"           value="$(arg device_type_camera2)"/>
      <arg name="serial_no"             value="$(arg serial_no_camera2)"/>
      <arg name="tf_prefix"		          value="$(arg tf_prefix_camera2)"/>
      <arg name="initial_reset"         value="$(arg initial_reset)"/>
      <arg name="align_depth"           value="true"/>
      <arg name="filters"               value="pointcloud"/>
      <arg name="color_width"           value="$(arg color_width)"/>
      <arg name="color_height"          value="$(arg color_height)"/>
      <arg name="depth_width"           value="$(arg depth_width)"/>
      <arg name="depth_height"          value="$(arg depth_height)"/>
      <arg name="clip_distance"         value="$(arg clip_distance)"/>
    </include>
  </group>
  <node pkg="tf" type="static_transform_publisher" name="t265_to_d400" args="0 0 0 0 0 0 /$(arg tf_prefix_camera1)_link /$(arg tf_prefix_camera2)_link 100"/>
</launch>