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PTO_VAR(1)			     HUGIN			    PTO_VAR(1)

       pto_var - change	image variables	inside Hugin .pto project files

       pto_var [options] --opt|--link|--unlink|--set "image variables list

       pto_var is a command line tool, suitable	for inclusion in shell
       scripts,	and allows the change of image variables inside	a Hugin	.pto
       project file.  Optimisation variables can be set, altered, linked and
       unlinked, The following image variables are allowed:

	   position: y,	p, r, TrX, TrY,	TrZ lens parameters: v,	a, b, c, d, e,
	   g, t	photometric parameters:	EeV, Er, Eb, Vb, Vc, Vd, Vx, Vy, Ra,
	   Rb, Rc, Rd, Re (Vignetting and response parameter will treated as

       The image numbers start with zero.  If the number is missing this
       applies to the variables	of all images (In this case a special
       treatment applies to the	position of the	anchor image).	An exclamation
       mark before the variable	will remove the	variable from the list of
       variables to optimised.

       -o|--output = file.pto
	   Output Hugin	PTO file. Default: <filename>_var.pto

	   Shows help

       --opt varlist
	    Change optimizer variables

	      Modify the existing optimizer variables
	      (without pto_var will start with an
	       empty variables set)
	      --opt=y,p,r	    Optimize yaw, pitch	and roll of all	images
				    (special treatment for anchor image	applies)
	      --opt=v0,b2	    Optimize hfov of image 0 and barrel	distortion
				    of image 2
	      --opt=v,!v0	    Optimize field of view for all images except
				    for	the first image
	      --modify-opt --opt=!v will not optimize field of view.
	      --opt=!a,!b,!c	    Don't optimise distortion (works only with
				    switch --modify-opt	together)

       --link varlist
	      --link=v3		 Link hfov of image 3
	      --link=a1,b1,c1	 Link distortions parameter for	image 1

       --unlink	varlist
	      --unlink=v5	 Unlink	hfov for image 5
	      --unlink=a2,b2,c2	 Unlink	distortions parameters for image 2

       --set varlist
	      --set=y0=0,r0=0,p0=0  Resets position of image 0
	      --set=Vx4=-10,Vy4=10  Sets vignetting offset for image 4
	      --set=v=20	    Sets the field of view to 20 for all images
	      --set=y=val+20	    Increase yaw by 20 deg for all images
	      --set=v=val*1.1	    Increase fov by 10 % for all images
	      --set=y=i*20	  Set yaw to 0,	20, 40,	...

       --set-from-file filename
				    Sets variables to new values
				    It reads the varlist from a	file

       Thomas Modes

"Version: 2019.2.0"		  2016-01-25			    PTO_VAR(1)


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