RE: [Vxl-maintainers] Preference

[Kelliher, T. P (Research) <kel...@cr...>]

  From the standpoint of enabling automated wrapping, a la VTK, separating out this way would appear
to have an advantage. 

-----Original Message-----
From: Pet...@es...
[mailto:Pet...@es...]
Sent: Thursday, October 03, 2002 8:05 AM
To: vxl...@li...; mu...@le...
Subject: Re: [Vxl-maintainers] Preference


> eg  vil2_algo_convolve_1d(src_im,DEST_IM,kernel,start_edge_option,end_edge_option)

There IS an other possibility, which avoids confusion of argument order altogether.

It requires however to turn these functions into classes.
Then one could e.g. say:

------------ 8<
vil2_algo_convolve_1d p;
p.set_source_image(src_im);
p.set_dest_image(DEST_IM);
p.set_end_edge_option(end_edge_option);
// implicitly set all other parameters to there default value

p.run();

// This thus gives the user the possibility to use the default value
// for *any* parameter (not just for the ones that happen to be last
// in the list).

// And even run the algo once again, without losing any
// (possibly expensive) initialisation:

for (i=-10; i<10; ++i) { kernel[0]=i; p.set_kernel(kernel); p.run(); }

------------- 8<


	Peter.


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