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+====== vmp.CreateSMP ======
+===== Motivation =====
+Please refer to the [[Processing stream - Surface projection|Surface projection]] page for information on why to use this method and a practical example output.
+===== Method reference ('vmp.Help('CreateSMP')') =====
+<file> VMP::CreateSMP  - sample SMPs from the maps in a VMP
+ FORMAT:       smp = vmp.CreateSMP(srf, opts)
+ Input fields:
+       srf         required surface file
+       opts        1x1 struct with optional fields
+        .interp    method ('nearest', {'linear'}, 'cubic')
+        .ipfrom    interpolate from P + n * normal vector, default: -3
+        .ipstep    interpolation stepsize, default: 1 (in normal vectors)
+        .ipto      interpolate to P + n * normal vector, default: 1
+        .mapsel    map selection, default: all maps in VMP
+        .method    method to get value ('max', {'mean'}, 'median', 'min')
+        .recalcn   boolean, recalc normals before sampling, default: false
+ Output fields:
+       smp         SMP object with as many maps as selected
+ Note: results slightly differ from BV's results (sampling method)</file>
+===== Usage examples =====
+  * simple conversion of all maps in a VMP with default parameters: <code matlab vmp_createsmp_example1.m>% load VMP and SRF
+vmp = xff('*.vmp', 'Please select a VMP for SMP creation...');
+srf = xff('*.srf', 'Please select a surface to sample VMP at...');
+% convert to SMP
+smp = vmp.CreateSMP(srf);
+% save as and clear all VMP/SRF objects
+smp.SaveAs;
+vmp.ClearObject;
+srf.ClearObject;</code>
+  * only convert first map with cubic interpolation and sampled just at the vertex: <code matlab vmp_createsmp_example2.m>smpcreateopts = struct( ...
+    'interp', 'cubic', ...
+    'ipfrom', 0, ...
+    'ipto',   0, ...
+    'mapsel', 1);
+smp = vmp.CreateSMP(srf, smpcreateopts);</code>
+  * recreate normals before sampling: <code matlab vmp_createsmp_example3.m>smp = vmp.CreateSMP(srf, struct('recalcn', true));</code>