pal-robotics/tiago_robot

doubt about Astra S location in URDF

bmegli opened this issue · 0 comments

We seem to be experiencing some offset of Astra S xtion_rgb_frame compared to real hardware

  • seems to be 2 cm on each axis

In particular, should xtion_orbbec_aux_joint_frame and link be set to (0,0,0)?

<!-- frame of camera origin provided by Orbbec, need this intermediate frame for backwards compatibility with xtion_pro_live
to reuse same camera origin -->
<joint name="${name}_orbbec_aux_joint" type="fixed">
<!-- Assuming we have 0.0908 0.08 0.0 from default camera_position, and rotated -90 deg on x.-->
<!-- Pending confirmation from Orbbec about the position of the frames, going with old defaults-->
<!-- <origin xyz="0.0107 0.008 0.015" rpy="0 0 0" />-->
<origin xyz="0 0 0" rpy="0 0 0" />
<parent link="${name}_link" />
<child link="${name}_orbbec_aux_joint_frame"/>
</joint>

Should data extracted from tf2 tree for TIAGo Astra S camera, in particular xtion_rgb_optical_frame, under which both depth and rgb data is published, reflect reality?