Flavio,
This is a bit ugly, but should do what you want:
There is a simulation method from the robot for general access to a
simulator. In the PyrobotSimulator there is also an .eval() method. You
can pass in a string that will get evaluated in the simulator, where
self if the sim.
For example, after starting the simulator and connecting onto it:
robot.simulation[0].eval("self.drawLine(0, 0, 1, 1, fill='blue',
tag='particle')")
will draw a blue line from (0,0) to (1,1) in the coordinates of the
room, with the tag "particle".
The lines aren't very persistent and will go away if the window is
completely redraw. You can force them to go away with:
robot.simulation[0].eval("self.remove('particle')")
But, that should do what you want. Consider adding a method to
pyrobot/simulators/pysim.py (and contribute it back to pyrobot). You
could also add a module on this to the pyrobot wiki materials, if you
like. Also, if you make a movie, I hope you show it!
Good luck!
-Doug
Flavio Coelho wrote:
Hi,
I am trying to implement a localization algorithm in a brain script
using the particle filter method.
I want to draw the particles in the simulator canvas to illustrate the
progression of the localization algorithm.
For those who don't know what this algorithm is all about, all I want to
do is to draw and erase pixels on the main simulator canvas where the
robot is moving
is there an easy way to do that?
thanks,
Flávio
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