Index: /issm/trunk/src/m/model/plot/processdata.m
===================================================================
--- /issm/trunk/src/m/model/plot/processdata.m	(revision 6707)
+++ /issm/trunk/src/m/model/plot/processdata.m	(revision 6708)
@@ -126,5 +126,6 @@
 	if exist(options,'log'),
 		bounds=getfieldvalue(options,'caxis',[min(data(:)) max(data(:))]);
-		if any(data<=0) & min(bounds)<0,
+		data(find(data<bounds(1)))=bounds(1);
+		if any(data<=0),
 			error('Log option cannot be applied on negative values. Use caxis option (Rignot''s settings: [1.5 max(data)])');
 		end