"Object Reference Tracing" is a valuable extension of the "Object Reference" to draw. Its function consists in laying out temporary vector lines that can be derived from existing "Object References" to signalize and obtain additional points during the execution of drawing commands.
In other words, as we draw and once we have activated the references, Autocad generates temporary lines -which are clearly distinguished from the rest because they are dotted- that allow us to "track" the location of new points. If we activate more than one reference, then what we will obtain will be more than one tracking line and even the intersections that arise between them, as if they were new objects and their respective references.
You should also note that each trace line also has a label where it displays the relative polar coordinates dynamically as we move the cursor so that we can capture points at specific positions marked with those tags. Even once the address of a new point has been established with respect to the reference used, it is possible to capture a distance on the trace line directly in the command window. Let's look at a new example.
In the "Drawing parameters" dialog box, in the "Object references" tab, you can enable or disable the Trace. Although, as we showed at the beginning, we can also do it in the status bar. In turn, the behavior of the visual aids of the tracing, called Autotrack, are configured in the "Options" dialog in the "Drawing" tab that we have used before.