gtReconstruct6DLaunchAlgorithm: updated to allow for passing extra arguments (like an ODF)

Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>

5_reconstruction/gtReconstruct6DLaunchAlgorithm.m

-function [algo, good_or] = gtReconstruct6DLaunchAlgorithm(sampler, rec_opts, parameters, det_index)
-% FUNCTION algo = gtReconstruct6DLaunchAlgorithm(sampler, rec_opts, parameters, det_index)
+function [algo, good_or] = gtReconstruct6DLaunchAlgorithm(sampler, rec_opts, parameters, varargin)
+% FUNCTION algo = gtReconstruct6DLaunchAlgorithm(sampler, rec_opts, parameters, varargin)
 %
 
-    if (~exist('det_index', 'var') || isempty(det_index))
-        det_index = 1;
-    end
+    conf = struct('det_index', 1, 'ODF', []);
+    conf = parse_pv_pairs(conf, varargin);
 
     rec_factory = Gt6DReconstructionAlgorithmFactory(parameters, ...
         'volume_downscaling', rec_opts.volume_downscaling, ...
@@ -12,7 +11,7 @@ function [algo, good_or] = gtReconstruct6DLaunchAlgorithm(sampler, rec_opts, par
         'rspace_oversize', rec_opts.rspace_oversize, ...
         'use_predicted_scatter_ints', rec_opts.use_predicted_scatter_ints, ...
         'shape_functions_type', rec_opts.shape_functions_type, ...
-        'det_index', det_index );
+        'det_index', conf.det_index );
 
     num_interp = rec_opts.num_interp;
     if (num_interp < 0)
@@ -23,6 +22,9 @@ function [algo, good_or] = gtReconstruct6DLaunchAlgorithm(sampler, rec_opts, par
 
     [algo, good_or] = rec_factory.getReconstructionAlgo(sampler, num_interp);
 
+    % Adding extra parameters/constraints
+    algo.ODF = conf.ODF;
+
     geom_memory = sum(arrayfun(@(x)x.get_memory_consumption_geometry(), sampler));
     grain_memory = sum(arrayfun(@(x)x.get_memory_consumption_graindata(), sampler));