.\"
.\" Copyright (c) 2009 Hypertriton, Inc. <http://hypertriton.com/>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
.\" (INCLUDING BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd $Mdocdate: March 29 2009 $
.Dt CNCPOS 2
.Os
.Sh NAME
.Nm cncpos
.Nd return current absolute machine coordinates
.Sh SYNOPSIS
.Fd #include <sys/cnc.h>
.Ft int
.Fn cncpos "cnc_vec_t *pos"
.Sh DESCRIPTION
.Nm
returns a vector describing the current absolute machine coordinates.
The vector is returned into
.Fa pos .
.Sh RETURN VALUES
If the operation is successful, a 0 value is returned.
A return value of \-1 indicates an error, which is further specified in the
global
.Va errno .
.Sh ERRORS
The
.Fn cncpos
will fail if:
.Bl -tag -width Er
.It Bq Er EFAULT
.Fa pos
points to an invalid address.
.It Bq Er ENODEV
The kernel has been compiled without support for trajectory planning.
.El
.Sh SEE ALSO
.Xr cnc 3 ,
.Xr cncjog 2 ,
.Xr cncjogstep 2 ,
.Xr cncmove 2
.Sh HISTORY
The
.Nm
function appeared in FabBSD 1.0.