minor fixes

[ros_wild_thumper.git] / scripts / umbmark.py

diff --git a/scripts/umbmark.py b/scripts/umbmark.py
index d103b5c0abf277b6afb0f0a9b544f9ce503af549..398f2be10cde91fb16ff057e3ceb8b5634c49340 100755 (executable)
--- a/scripts/umbmark.py
+++ b/scripts/umbmark.py
@@ -21,10 +21,14 @@
 # beta = (y_cg_cw + y_cg_ccw)/(-4*L)
 # R = (L/2)/sin(beta/2)
 # Ed = Dr/Dl*(R+b/2)/(R-b/2)
+# Da = (Dr + Dl)/2
+# Dl = 2/(Ed + 1) * Da
+# Dr = 2/((1/Ed) + 1) * Da
 # 
 # Wheelbase correction:
 # alpha = (y_cg_cw - y_cg_ccw)/(-4*L) * 180/pi
 # Eb = (90)/(90-alpha)
+# b_new = Eb*b
 
 import sys
 import rospy
@@ -36,6 +40,8 @@ from math import *
 from nav_msgs.msg import Odometry
 from move_base_msgs.msg import MoveBaseAction, MoveBaseGoal
 from actionlib_msgs.msg import GoalStatus
+from optparse import OptionParser
+
 
 class UMBMark:
        def __init__(self):
@@ -74,25 +80,29 @@ class UMBMark:
                        rospy.logerr("The base failed to (%.2f, %2f), %d°" % (x, y, angle*180/pi))
                        raise
 
-       def run(self, direction=-1):
+       def run(self, direction=-1, size=2):
                while self.odom_pose is None:
                        sleep(0.1)
                init_pose = self.odom_pose
                for i in range(4):
-                       self.next_pos(2, 0, 0)
+                       self.next_pos(size, 0, 0)
                        self.next_pos(0, 0, direction*90*pi/180)
                final_pose = map(operator.sub, self.odom_pose, init_pose)
-               print "Odom Pose: x=%.2f, y=%.2f, angle=%.2f°" % (final_pose[0], final_pose[1], final_pose[2]*180/pi)
+               print "Odom Pose: x=%.3f, y=%.3f, angle=%.3f°" % (final_pose[0], final_pose[1], final_pose[2]*180/pi)
 
-       def run_cw(self):
-               self.run(-1)
+       def run_cw(self, size):
+               self.run(-1, size)
 
-       def run_ccw(self):
-               self.run(1)
+       def run_ccw(self, size):
+               self.run(1, size)
 
 if __name__ == "__main__":
+       parser = OptionParser()
+       parser.add_option("-l", "--length", dest="length", default=2, help="Square size")
+       (options, args) = parser.parse_args()
+
        p = UMBMark()
        if len(sys.argv) > 1 and sys.argv[1] == "ccw":
-               p.run_ccw()
+               p.run_ccw(float(options.length))
        else:
-               p.run_cw()
+               p.run_cw(float(options.length))