opensim-core: Required format for printing external loads files can't be met (Matlab)

When printing out forces from a c3d, you have to rely on STOFileAdapter(), which prints external loads in a non-compliant .mot format.

%% import java libraries
import org.opensim.modeling.*

%% Use a c3dAdapter to turn read a c3d file
adapter = C3DFileAdapter();
forces = adapter.read(filepath).tables.get('forces');

%% flatten the Vec3 table to a table of doubles. 
postfix = StdVectorString(); postfix.add('_x');postfix.add('_y');postfix.add('_z');
forces_flattened = forces_rot.flatten(postfix);
% make a sto adapter and write the forces table to file.
STOFileAdapter().write(forces_flattened,[filepath '.mot']);

The output file header looks like this

CalibrationMatrices=Corners=DataRate=2000.000000
Origins=Types=events=DataType=double
version=2
endheader
time	f1_x	f1_y	f1_z	m1_x	m1_y	m1_z	p1_x	p1_y	p1_z	f2_x	f2_y	f2_z	m2_x	m2_y	m2_z	p2_x	p2_y	p2_z
0	1.472130060195923	17.71418762207031	-2.357758045196534	61.67040961382952	742.0819913723619	-98.77109934038099	827.2036135380047	3.6909246695582e-14	602.7737421316849	0	22.82806015014648	0.04444999992847303	2.273736754432321e-13	814.478227169007	1.585923503849422	318.8885687585697	3.419024461569678e-14	558.3690683632433

There are a few issues with this. (i) the header information is not compliant with standard .mot file format, and (ii) the order of colomns is also incorrect (we require f1,p1,f2,p2,…fn,pn, m1,m2,…mn).

I should be able to open the .mot in the (3.3) GUI to test/visualize, which I currently can not do.