GEOREFIMG - georeferencing of raster images in plain AutoCAD
 (C)2025, ARKANCE CZ (CAD Studio)   http://www.arkance.world
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GeoRefImg is a LISP utility for AutoCAD 2004, 2005, 2006, 2007,
2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
(plus Architecture, Mechanical, MEP) which can automatically
reposition raster images used in a drawing to the position defined
in the images' World files.
World files define geo-position and other parameters of a
raster image (TIF, CIT, JPG, JP2, PNG, GIF, BMP, ECW, SID...).

Load this utility with _APPLOAD or use the automatic installer
from Autodesk Apps.

Manual install for AutoCAD 2012/13/14/15/16/17: copy the whole
"GeoRefImg.bundle" folder as a subfolder to:
C:\Program Files\Autodesk\ApplicationPlugins
or (XP):
C:\Documents and Settings\<usrname>\Application Data\Autodesk\ApplicationPlugins
or (Win10/Win8/Win7/Vista):
C:\Users\<usrname>\AppData\Roaming\Autodesk\ApplicationPlugins
-- GeoRefImg will be loaded automatically (see _APPAUTOLOADER)

Start GeoRefImg by typing the GEOREFIMG command.
GeoRefImg prompts to select objects (existing images) and
then performs the repositioning and scaling controlled by
the World files (TFW, TFWx, JGW, JPW, J2W, PGW, GFW, BPW, SDW,
EWW, WLD...).
World files are searched in the folders of the original
raster image files.

The additional command WORLDOUT can create a new world
file from an existing positioned image. Rotated images
are supported since version 2.5.

The additional command IMAGESATTACH can attach multiple images
at once (one below one). Since version 3.1.

Since V3.2 you can use the AGRI command (toggle) to enable a reactor
which will try to georeference images automatically right after you
attach them. You can preset the autoreference mode with:
(setq _georefimg_agri T)

GeoRefImg communicates in English, Czech and Hungarian (auto-switch).

GEOREFIMG checks the format of the world file and refuses
to update images with "suspect" world files. You can control
the tolerance (precision) and some of the pre-flight checks:
(setq GeoRefCheckTol 0.03)
(setq GeoRefCheckIgnore T)

Hint: rotation defined in the world file (rarely used) is
applied only since GeoRefImg version 1.5 (and fixed in V1.10)
Hint: GeoRefImg is useful even in AutoCAD Map and Civil3D
(already contain georeferencing) as WorldOut works there.
Hint: since V2.7 you can use GeoRefImg also in AutoCAD for Mac,
load the "(Mac)" version (a .FAS file).

License: GEOREFIMG is a free utility by ARKANCE CZ, do not
publish it online on other than ARKANCE's or CADstudio's
web servers.

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Contact:
Arkance Systems CZ s.r.o. (formerly known as CAD Studio)
Libalova 2348/1, 149 00 Praha 4, Czech Republic
info.cz@arkance.world
www.arkance.world     www.cadforum.cz
