added distance per stroke metric

rowers/dataprep.py

@@ -1567,6 +1567,9 @@ def dataprep(rowdatadf,id=0,bands=True,barchart=True,otwpower=True,
             drivenergy = drivelength*averageforce
         
     distance = rowdatadf.ix[:,'cum_dist']
+    velo = 500./p
+
+    distanceperstroke = 60.*velo/spm
 
     
     data = DataFrame(
@@ -1588,6 +1591,7 @@ def dataprep(rowdatadf,id=0,bands=True,barchart=True,otwpower=True,
 	    distance=distance,
 	    drivespeed=drivespeed,
             rhythm=rhythm,
+            distanceperstroke=distanceperstroke,
 	    )
 	)
 
@@ -1667,6 +1671,7 @@ def dataprep(rowdatadf,id=0,bands=True,barchart=True,otwpower=True,
 
         velo = 500./p
 
+
         ergpw = 2.8*velo**3
         efficiency = 100.*ergpw/power
 

rowers/metrics.py

@@ -23,7 +23,8 @@ axes = (
     ('effectiveangle', 'Effective Drive Length (deg)',40,140,'pro'),
     ('rhythm', 'Stroke Rhythm (%)',20,55,'pro'),
     ('efficiency', 'OTW efficiency (%)',0,110,'pro'),
-     ('None', 'None',0,1,'basic'),
+    ('distanceperstroke','Distance per Stroke (m)',0,15,'pro'),
+    ('None', 'None',0,1,'basic'),
     )
     
 axlabels = {ax[0]:ax[1] for ax in axes}

rowers/models.py

@@ -560,6 +560,7 @@ class StrokeData(models.Model):
     totalangle = models.FloatField(default=0.0,null=True,verbose_name='Total Stroke Length (deg)')
     effectiveangle = models.FloatField(default=0.0,null=True,verbose_name='Effective Stroke Length (deg)')
     efficiency = models.FloatField(default=-1,null=True,verbose_name='OTW Efficiency')
+    distanceperstroke = models.FloatField(default=-1,null=True,verbose_name='Distance per Stroke')
     
 # A wrapper around the png files
 class GraphImage(models.Model):