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Initial pose for robot_localization within a given map

asked 2018-07-23 18:36:11 -0600

tuandl
358 ●10 ●16 ●21

Hi, I am able to run r_l package fuing wheel odometry, imu and gps. Now I want to run the localization within a predefined map.

As briefly mentioned here, I have to initialize a robot pose within a map before calling navsat_tranform.

I don't know how to do it. Let's say the robot starts within a map with an arbitrary pose, I wonder is there any way to set that pose before calling navsat_transform?

For example, my current localization result within a prior looks like this: image description

The blue arrows are fused odometry using wheel encoder, imu and gps. The localization result in world_frame is satisfying.

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answered 2018-07-23 19:25:25 -0600

billy
1850 ●24 ●87 ●47

updated 2018-07-23 19:25:47 -0600

The initial pose has it's own topic. You can publish to this topic from a node. RVIZ publishes to this topic when you set initial pose using the mouse.

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@billy yes you are right. But setting the pose using rviz only effects the initial pose of amcl right? Since robot localization package didn't subscribe to any initial pose topic then how can you set an initial pose for it? Or maybe I miss something?