AutoCAD Plug-in ReadMe

1 Plug-in Description

This plug-in enables you to move objects in AutoCAD 2010 to 2019 with the SpaceController. Furthermore it incorporates AutoCAD's menu commands in the SpaceControl Panel's Key Configuration dialog for easy mapping of commands to the SpaceController's function keys. Due to some restrictions in AutoCAD's API the support for AutoCAD 2010 must be enabled by hand. See file "AutoCAD2010_Readme.html" in folder "C:\Program Files (x86)\SpaceControl\AutoCAD\misc\" how to do that.
Users upgrading from older versions than version 2.6.2 should delete the files "autocad.mnu" and "autocad_plugin.ini" in folder "C:\Users\<Username>\SpaceController\Applications\". They will be recreated when AutoCAD starts the first time with the new plug-in.

The plug-in is an ObjectARX application ("SPCCAutoCADyyyy.arx", where "yyyy" is the year of the AutoCAD release) which is loaded by AutoCAD at start-up. Make sure to install the plug-in after AutoCAD has been installed; otherwise the plug-in's installer cannot enable this autostart feature.

To avoid a security warning generated by AutoCAD when loading the plug-in add the plug-in's installation path to the so called trusted locations: "AutoCAD Options/System/Security Options/Browse.../Add/OK".


The plug-in can also be loaded by hand with AutoCAD's command "appload". Supported operating systems are Windows XP to Windows 10, both 32 and 64 bit.

2 Setting the Rotation Center

There are some possibilities how you can rotate the scene with the SpaceController. These differ in the center point of rotation and how the user can select it.

2.1 Rotating around the Scene's Origin or the Screen's Midpoint

There are some possibilities how you can move and rotate an object with the SpaceController. Basically you can change between the "scene" perspective (moving the cap seemes to move the scene you are looking at) and the "camera" perspective (moving the cap moves the virtual camera looking into the scene). Further settings control the rotation center, switch a special hover mode on and off or lock the horizon. All this can be configured with the SpaceController Panel's Advanced Configuration dialog in the Move Mode panel:

Advanced Configuration Dialog

See chapter Advanced Configuration in the SpaceController's user manual for details.

The mode Camera Mode: Rotate around Camera and Hover will work only in AutoCAD's perspective mode. In parallel mode the first one will have unexpected results, the second one will not work at all due to mathematical restrictions.

3 Special functions

There are four special functions available in AutoCAD which can be used when they have been assigned to a key or the Wheel Function Launcher. To activate them open the Function Assignment dialog, open the branch "AutoCAD/SpaceControl" in the function tree and drag the functions therein to the function keys:

Function Assignment

Pressing the SpaceController keys will toggle the function now. The following functions are available:
These functions can be executed as well using the SpaceController menu items integrated in AutoCAD's menu bar:

SpaceControl menu in AutoCAD

4 Using AutoCAD's built-in 3D Controller Interface

AutoCAD has a built-in 3D controller interface. It fetches the controller's data and moves the scene by itself (method A). In opposite to this our plug-in needs to reach into AutoCAD from the outside by means of AutoCAD's programming interface (method B). Method B has slightly less performance than method A as you can imagine. In cases where highest performance is necessary (e. g. when handling very large scenes) you can activate method A. Disadvantage: Setting the rotation center as described in section 2 is not longer possible and the special functions as described in section 3 are not available; all of these settings will be ignored.

To activate method A you have to change a parameter in our configuration file "autocad_addin.ini" and another in our file "siapp_dll.ini":

  1. Close AutoCAD.
  2. Make sure our "Universal Plug-in" is installed.
  3. Open file "C:\Users\<Username>\SpaceController\Applications\autocad_addin.ini" with Notepad and change parameter "useInt3dIntrfce" to "on".
  4. Open file "C:\Users\<Username>\SpaceController\siapp_dll.ini" with Notepad and comment out the line starting with "AutoCAD" in section [SUPP_APPLS] by setting the character "#" in the very first column. If the file is not there you have to start AutoCAD once while the Universal Plug-in is installed.
  5. To get rid of our SpaceControl menu embedded in AutoCAD (the menu will not work with method 1) open folder "C:\Users\<Username>\SpaceController\Applications" and delete the files "SpaceControl.cuix", "spacecontrol.mnr" and "spacecontrol_light.mnr". Don't worry, they will be recreated automatically if you switch back to the normal method B.
  6. Start AutoCAD.

5 Change Log

7 June 2018, Version 2.9.2:

23 October 2017, Version 2.9.0:

5 July 2017, Version 2.8.8:

8 November 2016, Version 2.8.6:

31 May 2016, Version 2.8.5:

27 May 2015, Version 2.8.1:

10 February 2015, Version 2.8.0:

24 October 2014, Version 2.7.0:

9 September 2014, Version 2.6.3:

11 June 2014, Version 2.6.2:

2 October 2013, Version 2.6.0:

22 February, Version 2.5.0:

26 October 2012, Version 2.4.0

16 March 2012, Version 2.3.0

20 October 2011, Version 2.2.0

16 June 2011, Version 2.1.0:

15 February 2011, Version 2.0.0:

10 September 2010, Version 1.4.0:

22 July 2010, Version 1.4.0 beta:

SpaceControl GmbH & Co. KG, Am Technologiepark 10, 82229 Seefeld, Germany