Hi
you can have a look in the empty.sdf world.
Inserting:
ign service -s /world/empty/create \
--reqtype ignition.msgs.EntityFactory \
--reptype ignition.msgs.Boolean \
--timeout 300 \
--req 'sdf: '\
'"<?xml version=\"1.0\" ?>'\
'<sdf version=\"1.6\">'\
'<model name=\"spawned_model\">'\
'<link name=\"link\">'\
'<visual name=\"visual\">'\
'<geometry><sphere><radius>1.0</radius></sphere></geometry>'\
'</visual>'\
'<collision name=\"visual\">'\
'<geometry><sphere><radius>1.0</radius></sphere></geometry>'\
'</collision>'\
'</link>'\
'</model>'\
'</sdf>" '\
'pose: {position: {z: 10}} '\
'name: "new_name" '\
'allow_renaming: true'
Deleting
ign service -s /world/empty/remove \
--reqtype ignition.msgs.Entity \
--reptype ignition.msgs.Boolean \
--timeout 300 \
--req 'name: "new_name" type: MODEL'