[Playerstage-users] Global plan failed with lower resolution map on robot

[fung <fun...@au...>]

We are trying to use the wavefront planner with a indoor map. we built two
maps with the same data but different grid resolutions. With a mapfile of
640 X 480 , at 0.100 m/pix, the robot moves but is never able to get to a
goal point. With a mapfile of 200x200 at .025 ,m/pix, the robot shows the
following error
new goal: 0.500000, 0.000000, 0.000000
Wavefront: global plan failed
Wavefront (port 6665):
  No path from (0.000,0.000,0.000) to (0.500,0.000,0.000)
new goal: 0.625000, -0.250000, 0.099669
Wavefront (port 6665):
  No path from (0.000,0.000,0.000) to (0.625,-0.250,5.711)
new goal: 0.900000, 0.075000, 0.165149
Wavefront (port 6665):
  No path from (0.000,0.000,0.000) to (0.900,0.075,9.462)
new goal: 0.775000, -0.275000, -0.165149
We also get the following error in both cases 
error   : unable to locate suitable map device
error   : failed to get laser map
error   : failed to setup sensor 1
error   : Driver failed to Setup (-1)
Attached are the cfg files and the map pgm files.

What can be the problem?

http://old.nabble.com/file/p33507250/wavefront_amcl_wavefront_robot.cfg
wavefront_amcl_wavefront_robot.cfg 
http://old.nabble.com/file/p33507250/dp3_indoor_200x200.pgm
dp3_indoor_200x200.pgm 
http://old.nabble.com/file/p33507250/dp3_indoor_640x480.pgm
dp3_indoor_640x480.pgm 
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