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How to save the poses which on the global_path topic into a txt file?

asked 2015-05-06 21:01:59 -0500

jxl gravatar image

updated 2015-05-06 21:02:30 -0500

hello everyone ,

I want to save the path from start pose to goal published by the global path planner like Dijkstar in the navfn package , so i am ready to write a node which subscribes that topic.In the callback , i want to save those poses into a txt file,which Matlab can read in , so i can plot them in the Matlab and also analyse the path length and the smoothness .

my question is simple :

in the callback ,how can i save that messages into a txt file or something else,sorry ,i don't know how to write the body of the callback.

Thank you in advance.

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Can't ROSMATLAB read bagfiles?

BennyRe gravatar image BennyRe  ( 2015-05-07 04:19:42 -0500 )edit

Unfortunately, just now, I knew matlab can actually support the ROS.,that's amazing!!But when I see the MathWorks site ,there are many things of ROSMATLAB i have to learn ,it will take a long time .so does you know how to do this job on the ROSUbuntu ??

jxl gravatar image jxl  ( 2015-05-07 08:45:29 -0500 )edit

Hi, I don't know the answer..

RB gravatar image RB  ( 2015-05-07 11:13:16 -0500 )edit

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answered 2015-08-24 10:15:14 -0500

jxl gravatar image

My final solution is :first save that global path topic into a txt file using command ,then make a C project to process that file to extract the useful information ,then plot that data on matlab.

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Asked: 2015-05-06 21:01:59 -0500

Seen: 383 times

Last updated: Aug 24 '15