[GRASS-SVN] r47184 - grass-addons/grass7/raster/r.threshold

[svn_grass at osgeo.org]

Author: madi
Date: 2011-07-20 04:05:25 -0700 (Wed, 20 Jul 2011)
New Revision: 47184

Modified:
   grass-addons/grass7/raster/r.threshold/r.threshold.py
Log:
managing negative values in flow accum map added

Modified: grass-addons/grass7/raster/r.threshold/r.threshold.py
===================================================================
--- grass-addons/grass7/raster/r.threshold/r.threshold.py	2011-07-20 07:37:49 UTC (rev 47183)
+++ grass-addons/grass7/raster/r.threshold/r.threshold.py	2011-07-20 11:05:25 UTC (rev 47184)
@@ -31,7 +31,6 @@
 
 
 import grass.script as grass
-import grass.script.array as garray
 import os, sys
 import math
 import numpy as np
@@ -62,7 +61,10 @@
     index = np.where(distance==min(distance))
     th = area[index]
 
-    grass.message("Suggested threshold is %d" % th )
+    if th < 0:
+        grass.message("Warning: Flow accumulation contains negative values")
+    else:
+        grass.message("Suggested threshold is %d" % th )
 
     grass.message( 'Done!' )