How to use proxy graphics and object enabler settings to view Vehicle Tracking data.
In Autodesk Vehicle Tracking, the path entity is a custom object that is calculated and drawn by Vehicle Tracking. Systems must therefore have Vehicle Tracking installed in order to update and maintain these objects.
AutoCAD caters for drawings that contain custom objects without their authoring application being present using a system called proxy graphics. Proxy graphics are similar to an anonymous block containing an exploded version of the custom object. However, the proxy graphics will only be visible if certain system variables are set correctly on both the authoring and receiving systems.
Authoring system
- In order for proxy graphics to be saved with the drawing the authoring system must have the system variable PROXYGRAPHICS set to 1 and INDEXCTRL set to 3. When you start Vehicle Tracking, these are set along with PROXYSHOW set to 1 and DEMANDLOAD set to 3.
Receiving system
- If the receiving system has Vehicle Tracking installed and the startup system setting Load Vehicle Tracking When Opening Drawing Containing Vehicle Tracking Data is switched on, Vehicle Tracking data will be visible just like any other entity. Likewise, if the AutoCAD object enabler is installed, then any Vehicle Tracking data will be visible. For more details of the object enabler refer to AutoCAD object enabler.
- If the receiving system either does not have Vehicle Tracking installed, or has Vehicle Tracking installed but Load Vehicle Tracking When Opening Drawing Containing Vehicle Tracking Data is switched off, AutoCAD will report the missing application only if the system variable PROXYNOTICE is set to 1. This prompt may give the user options Show Proxy Graphics and/or Do Not Show Proxy Graphics. Note however that if proxy graphics have not been saved with the drawing (see above) then even opting to Show Proxy Graphics will not make them visible. Note also that if the default was Do Not Show Proxy Graphics and you selectShow Proxy Graphics then you will need to issue a REGEN command to see the objects.
- If you decide not to show the proxy graphics at the start then setting PROXYSHOW to 1 will make them visible after the next REGEN if they are saved in the drawing.