3 Helpful “add-ons” for Civil 3D/Map 3D Users

With the popularity of third-party apps for your CAD software growing by the day, there are a numerous amounts of “add-ons” available for Civil 3D/Map 3D users.  Of course some “add-ons” are more helpful than others, so I thought I would share my 3 personal favorites in no particular order.
So, here it goes:

Plex.Earth 3.4


  • Import images and create seamless mosaics with aerial imagery from any provider, such as Google Earth/Maps, Bing Maps, OpenStreetMap or any WMS server (e.g. USGS).
  • Export your design models directly to Google Earth, quickly and easily, in both KML and compressed KMZ format for greater versatility.
  • Import KML files into AutoCAD
  • Create terrain models with elevation data fetched directly by Google Earth.
  • Full package for surface creation by any data set, such as breaklines, boundaries, points or even elevation data extracted by plain text in AutoCAD.
  • Advanced image processing capabilities, such as to merge and clip (while retaining georeference), and the ability to create World Files, thus allowing imagery transfer between AutoCAD and any other CAD/GIS system.
  • Supports the basic edition of AutoCAD 2010-2016 and verticals (AutoCAD Civil 3D, Map 3D, Architecture and Mechanical Desktop).
  • 3,000+ supported coordinate systems worldwide.

Maximize Application  


  • Use the ribbon button to cause the application to fill all your screens available. If you have only one monitor, it will just maximize to that screen. 
  • Command SplitAtScreen that will split your modelspace into viewports with their edges aligned to the edge of your physical monitors.




  • GeoRefImg is a LISP utility for AutoCAD®2016, 2015, 2014, 2013 and 2012 (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, PNG, GIF, BMP, ECW, SID…).
  • Start it 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, JGW, PGW, GFW, BPW, WLD…).
  • World files are searched in the folders of the original raster file. The additional command WORLDOUT can create a new world file from an existing positioned image. 


Honorable Mentions

[youtube https://www.youtube.com/watch?v=ZzyQIXg4qJA&w=560&h=315]

Happy Holidays – Michael DeJesus

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