Update help.tcl

add ae2dir and viewdir help statements

src/tclscripts/mged/help.tcl

@@ -38,6 +38,7 @@ set mged_help_data(3ptarb)	{{}	{makes arb given 3 pts, 2 coord of 4th pt, and th
 set mged_help_data(adc)		{{[<a1|a2|dst|dh|dv|hv|dx|dy|dz|xyz|reset|help> [value(s)]]}	{control the angle/distance cursor}}
 set mged_help_data(adjust)	$helplib_data(wdb_adjust)
 set mged_help_data(ae)		$helplib_data(vo_aet)
+set mged_help_data(ae2dir)	{{[-i] az el}	{return direction vector using inputed azimuth and elevation}}	
 set mged_help_data(analyze)	{{[arbname]}	{analyze faces of ARB}}
 set mged_help_data(apropos)	{{keyword}	{finds commands whose descriptions contain the given keyword}}
 set mged_help_data(aproposlib)	{{keyword}	{finds library commands whose descriptions contain the given keyword}}
@@ -340,6 +341,7 @@ set mged_help_data(units)	$helplib_data(wdb_units)
 set mged_help_data(vars)	{{[var=opt]}	{get/set mged variables}}
 set mged_help_data(vdraw)	{{write|insert|delete|read|length|send [args]}	{draw custom data into the wireframe view}}
 set mged_help_data(view)	{{center|size|eye|ypr|quat|aet}	{get/set view parameters (local units).}}
+set mged_help_data(viewdir)	{{[-i]}	{return direction vector based on current view}}
 set mged_help_data(vnirt)	{{x y}  	{trace a single ray from x y}}
 set mged_help_data(voxelize)	{{[-s "dx dy dz"] [-d n] [-t f] new_obj old_obj [old_obj2 old_obj3 ...]} {convert object to its constituent voxels, i.e.the RPPs which approximate it.