Index: /issm/trunk/src/m/classes/public/buildoverlaycolorbar.m
===================================================================
--- /issm/trunk/src/m/classes/public/buildoverlaycolorbar.m	(revision 2708)
+++ /issm/trunk/src/m/classes/public/buildoverlaycolorbar.m	(revision 2709)
@@ -1,3 +1,3 @@
-function colorbar_rgb=buildoverlaycolorbar(md,field,transparency);
+function colorbar_rgb=buildoverlaycolorbar(md,data,transparency);
 %BUILDOVERLAYCOLORBAR - creates the colorbar associated with an averlay plot option
 %
@@ -6,5 +6,5 @@
 %
 %   Usage:
-%      colorbar_rgb=buildoverlaycolorbar(md,field,transparency);
+%      colorbar_rgb=buildoverlaycolorbar(md,data,transparency);
 %
 %   Example:
@@ -14,11 +14,5 @@
 
 %recover results
-if isfield(struct(md),field)
-	data=eval(['md.' field ';']);
-else
-	data=field;
-end
-
-results=min(data):(max(data)-min(data))/256:max(data);
+results=max(1.5,min(data)):(max(data)-min(data))/256:max(data);
 
 %Build hsv color image from radar and results
@@ -28,5 +22,5 @@
 %hue
 %cut results under 1.5, and log
-results(find(results<1.5))=1.5;
+%results(find(results<1.5))=1.5;
 h=bytscl((results))/(255+1); %1 offset on colormap
 
Index: /issm/trunk/src/m/classes/public/plot/plot_overlay.m
===================================================================
--- /issm/trunk/src/m/classes/public/plot/plot_overlay.m	(revision 2708)
+++ /issm/trunk/src/m/classes/public/plot/plot_overlay.m	(revision 2709)
@@ -124,20 +124,18 @@
 	set(colorbar_image_handle,'CData',colorbar_rgb);
 	set(colorbar_handle,'Position',getfieldvalue(options,'colorbarpos'));
+	set(colorbar_handle,'FontSize',getfieldvalue(options,'fontsize',14));
 
 	%modify ticks.
-	data(find(data<1.5))=1.5;
 	scalestring=get(colorbar_handle,'YTickLabel');
-	scalevalues=get(colorbar_handle,'YTick');
-	scaleminmax=caxis;
-	numvalues=length(scalevalues);
+	numvalues=length(get(colorbar_handle,'YTick'));
 
 	scalestring=[];
+	scaleminmax=[max(min(data),1.5) max(data)];
 	for i=1:numvalues,
-		fraction=(scalevalues(i)-scaleminmax(1))/(scaleminmax(2)-scaleminmax(1));
-		scalevalues(i)=round_ice(exp(min(log(data))+(max(log(data))-min(log(data)))*fraction),2);
+		fraction=(i-1)/(numvalues-1);
+		scalevalues(i)=round_ice(scaleminmax(1)+(scaleminmax(2)-scaleminmax(1))*fraction,2);
 		scalestring=[scalestring; sprintf('%8.4g',scalevalues(i))];
 	end
 	set(colorbar_handle,'YTickLabel',scalestring);
 	set(colorbar_handle,'YColor','y');
-	set(colorbar_handle,'FontSize',getfieldvalue(options,'fontsize',14));
 end