Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/flaim.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/flaim.m	(revision 11219)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/flaim.m	(revision 11220)
@@ -5,19 +5,19 @@
 
 classdef flaim
 	properties (SetAccess=public) 
-		targets            = modelfield('default','','marshall',false);
-		tracks             = modelfield('default','','marshall',false);
-		flightreqs         = modelfield('default',struct(),'marshall',false);
-		criterion          = modelfield('default',NaN,'marshall',false);
-		gridsatequator     = modelfield('default',200000,'marshall',false);
-		usevalueordering   = modelfield('default',true,'marshall',false);
-		split_antimeridian = modelfield('default',true,'marshall',false);
-		solution           = modelfield('default','','marshall',false);
-		quality            = modelfield('default',0,'marshall',false);
-		path_optimize      = modelfield('default',false,'marshall',false);
-		opt_ndir           = modelfield('default',1,'marshall',false);
-		opt_dist           = modelfield('default',25,'marshall',false);
-		opt_niter          = modelfield('default',30000,'marshall',false);
+		targets            = ''
+		tracks             = ''
+		flightreqs         = struct()
+		criterion          = NaN
+		gridsatequator     = 200000
+		usevalueordering   = true
+		split_antimeridian = true
+		solution           = ''
+		quality            = 0
+		path_optimize      = false
+		opt_ndir           = 1
+		opt_dist           = 25
+		opt_niter          = 30000
 	end
 	methods
 		function obj = flaim(varargin) % {{{
@@ -37,13 +37,6 @@
 		end % }}}
 		function obj = setdefaultparameters(obj) % {{{
 
-			%first, use the defaults provided by the properties definition above. 
-			fieldnames=fields(obj);
-			for i=1:length(fieldnames),
-				fieldname=fieldnames{i};
-				obj.(fieldname)=obj.(fieldname).default;
-			end
-
 		end % }}}
 		function checkconsistency(obj,md,solution,analyses) % {{{
 
Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/radaroverlay.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/radaroverlay.m	(revision 11219)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/radaroverlay.m	(revision 11220)
@@ -5,9 +5,9 @@
 
 classdef radaroverlay
 	properties (SetAccess=public) 
-		pwr = modelfield('default',NaN,'marshall',false);
-		x   = modelfield('default',NaN,'marshall',false);
-		y   = modelfield('default',NaN,'marshall',false);
+		pwr = NaN;
+		x   = NaN;
+		y   = NaN;
 	end
 	methods
 		function obj = radaroverlay(varargin) % {{{
@@ -27,12 +27,6 @@
 		end % }}}
 		function obj = setdefaultparameters(obj) % {{{
 
-			%first, use the defaults provided by the properties definition above. 
-			fieldnames=fields(obj);
-			for i=1:length(fieldnames),
-				fieldname=fieldnames{i};
-				obj.(fieldname)=obj.(fieldname).default;
-			end
 		end % }}}
 		function disp(obj) % {{{
 			disp(sprintf('   radaroverlay parameters:'));
Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/model/modelfield.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/model/modelfield.m	(revision 11219)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/model/modelfield.m	(revision 11220)
@@ -1,31 +0,0 @@
-%MODELFIELD class definition
-%
-%   Usage:
-%      modelfield(varargin)
-
-classdef modelfield
-	properties (SetAccess=public) 
-		marshall=false;
-		default=0;
-		preprocess='';
-		format='Int';
-		mattype=0;
-		parameters=false;
-		enum=NoneEnum;
-	end
-	methods
-		function mf = modelfield(varargin)
-
-			options=pairoptions(varargin{:});
-			for i=1:size(options.list,1),
-				fieldname=options.list{i,1};
-				fieldvalue=options.list{i,2};
-				if ismember(fieldname,properties('modelfield')),
-						mf.(fieldname)=fieldvalue;
-				else
-					disp(['''' fieldname ''' is not a property of modelfield']);
-				end
-			end
-		end
-	end
-end
Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/inversion.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/inversion.m	(revision 11219)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/classes/inversion.m	(revision 11220)
@@ -5,23 +5,23 @@
 
 classdef inversion
 	properties (SetAccess=public) 
-		iscontrol                   = modelfield('default',0,'marshall',true,'format','Boolean');
-		control_parameters          = modelfield('default',NaN,'marshall',true,'preprocess','marshallcontroltype','format','DoubleMat','mattype',3);
-		nsteps                      = modelfield('default',0,'marshall',true,'format','Integer');
-		maxiter_per_step            = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',3);
-		cost_functions              = modelfield('default',NaN,'marshall',true,'preprocess','marshallcmresponses','format','DoubleMat','mattype',3);
-		cost_functions_coefficients = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',1);
-		gradient_scaling            = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',3);
-		cost_function_threshold     = modelfield('default',0,'marshall',true,'format','Double');
-		min_parameters              = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',3);
-		max_parameters              = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',3);
-		step_threshold              = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',3);
-		gradient_only               = modelfield('default',0,'marshall',true,'format','Boolean');
-		vx_obs                      = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',1);
-		vy_obs                      = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',1);
-		vz_obs                      = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',1);
-		vel_obs                     = modelfield('default',NaN,'marshall',false);
-		thickness_obs               = modelfield('default',NaN,'marshall',true,'format','DoubleMat','mattype',1);
+		iscontrol                   = 0
+		control_parameters          = NaN
+		nsteps                      = 0
+		maxiter_per_step            = NaN
+		cost_functions              = NaN
+		cost_functions_coefficients = NaN
+		gradient_scaling            = NaN
+		cost_function_threshold     = 0
+		min_parameters              = NaN
+		max_parameters              = NaN
+		step_threshold              = NaN
+		gradient_only               = 0
+		vx_obs                      = NaN
+		vy_obs                      = NaN
+		vz_obs                      = NaN
+		vel_obs                     = NaN
+		thickness_obs               = NaN
 	end
 	methods
 		function obj = inversion(varargin) % {{{
@@ -41,13 +41,6 @@
 		end % }}}
 		function obj = setdefaultparameters(obj) % {{{
 
-			%first, use the defaults provided by the properties definition above. 
-			fieldnames=fields(obj);
-			for i=1:length(fieldnames),
-				fieldname=fieldnames{i};
-				obj.(fieldname)=obj.(fieldname).default;
-			end
-
 			 %parameter to be inferred by control methods (only
 			 %drag and B are supported yet)
 			 obj.control_parameters={'FrictionCoefficient'};