---
name: "dcposn"
section: "1"
platform: "linux"
package: "dicom3tools"
version: "1.00~20240118131615-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/dcposn"
---

# dcposn(1)

ACR/NEMA DICOM PS3 ... DICOM PS3 - DICOM locate position

## NAME

dcposn - ACR/NEMA DICOM PS3 ... DICOM PS3 - DICOM locate position

## SYNOPSIS

**dcposn** \[ **-col\|x n** \] \[ **-row\|y n** \] \[ **-v\|verbose** \] \[ **-filename** \]

## DESCRIPTION

**dcposn** reads the named dicom input file and locates the requested image pixel position in 3D space using the attributes of the Image Plane module (Image Position Patient and Image Orientation Patient) if present.

The spatial position is described as patient (not gantry) relative x, y and z co-ordinates, where x is +ve leftwards, y is +ve anteriorly and z is +ve cranially.

## OPTIONS

The co-ordinates and verbose output go to standard error.

The basic input switches are described in [dcintro(1)](/dcintro/1.md). Options specific to this program are:

- **-col\|x n -row\|y n**

  The specified image pixel position begins from 0 in the top left hand corner of the image.

- **-verbose**

  Display byte offset from file start and message start, in hexadecimal, and dump contents while reading and once read.

- **-filename**

  Show the name of the file supplied in the arguments; a hyphen will be reported if no filename was supplied.

## ENVIRONMENT

## EXAMPLES

%dcposn -x 0 -y 0 expmeta.dc3

Row=0 Col=0   X=45.0 Y=-119.5 Z=119.5

## FILES

## SEE ALSO

**[dcintro(1)](/dcintro/1.md)**

## AUTHOR

Copyright (c) 1993-2022, David A. Clunie DBA PixelMed Publishing. All rights reserved.

## BUGS

This program really only exists for automated testing of the image plane module.