Wrapped interpolation function in try-except to provide better error …

…message than that mentioned in issue #19
AIFDR · Aug 14, 2011 · f467032 · f467032
1 parent dd6601b
commit f467032
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/impact/engine/interpolation.py b/impact/engine/interpolation.py
@@ -34,7 +34,11 @@ def raster_spline(longitudes, latitudes, values):
     A = numpy.flipud(values)
 
     # Call underlying spline
-    F = RectBivariateSpline(latitudes, longitudes, A)
+    try:
+        F = RectBivariateSpline(latitudes, longitudes, A)
+    except:
+        msg = 'Interpolation failed. Please zoom out a bit and try again'
+        raise Exception(msg)
 
     # Return interpolator
     return Interpolator(F, longitudes, latitudes)