All geometry and information on AutoCAD drawings will be on a layer, this may be just one, but in most cases this will be several. It may be useful to find out, or look at what information is on each layer to isolate the information.
This could be done via the Layer Properties Manager dialogue, turning the visibility of layers on or off as required.
However, there may be an easier way of doing this, by using the LAYWALK command.
- Open your drawing in AutoCAD, notice that the different colours and line types are represented by geometry being on different Layers in the drawing.
To help identify which parts of a drawing are external references you can adjust the Fade control to make these stand out against your design work. To access these controls go to the Insert TAB on the Ribbon > click on the Reference panel name to expand the options.
This value is always preset, by default AutoCAD 2011 introduced a fading of 70%, AutoCAD 2013 introduces a default fading of 50%.
In an Inventor 2012 IPN, presentation file, you may have found that after turning a parts Visibility off, a right click > Visibility, does not turn it back on.
