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+====== vmr.ApplyTRF ======
+===== Motivation =====
+The main motivation for using this function is the ability to flexibly script spatial VMR transformation in Matlab.
+===== Method reference ('vmr.Help('ApplyTRF')') =====
+<file> VMR::ApplyTRF  - apply transformation to VMR
+ FORMAT:       newvmr = vmr.ApplyTRF(trf [, opts])
+ Input fields:
+       trf         TRF object
+       opts        struct with optional fields
+        .asdouble  store output as double (default: false)
+        .inverse   apply inverse transformation (default: false)
+        .method    interpolation, see flexinterpn_method (default: 'linear')
+ Output fields:
+       newvmr      transformed VMR</file>
+===== Usage examples =====
+  * using a TRF that was created in BrainVoyager (and instead of the file selector in the first two lines, this can be scripted!): <code matlab vmr_applytrf_bvtrf.m>%load VMR and TRF
+vmr = xff('*.vmr');
+trf = xff('*.trf');
+% apply transformation with cubic interpolation
+trfvmr = vmr.ApplyTRF(trf, struct('method', 'cubic'));
+trfvmr.SaveAs;
+% clear objects
+vmr.ClearObject;
+trf.ClearObject;
+trfvmr.ClearObject;</code>
+  * using two VMRs, coregister them, then transform the first: <code matlab vmr_applytrf_coreg.m>% load two VMRs
+vmr1 = xff(sourcevmr);
+vmr2 = xff(targetvmr);
+% run coregistration (requires SPM5 or SPM8 on the path!!)
+% vmr2 is the target space (stationary), vmr1 the one to be resampled!
+trf = vmrspmcoreg(vmr1, vmr2)
+% resample vmr1 using sinc (lanczos3) interpolation
+vmr1_in_vmr2_space = vmr1.ApplyTRF(trf, struct('method', 'lanczos3'));
+% save TRF and VMR
+[sourcepath, sourcefile] = fileparts(sourcevmr);
+if isempty(sourcepath)
+    sourcepath = '.';
+end
+[nullpath, targetfile] = fileparts(targetvmr);
+trf.SaveAs(sprintf('%s/%s-TO-%s.trf', sourcepath, sourcefile, targetfile));
+vmr1_in_vmr2_space.SaveAs(sprintf('%s/%s-TO-%s.vmr', sourcepath, sourcefile, targetfile));
+% clear objects
+clearxffobjects({vmr1, vmr2, trf, vmr1_in_vmr2_space});</code>