Object Snap tracking is a great tool for making geometries with reference to existing points in a drawing. To use this tool, activate it from the status bar, as in the following screenshot. It's the tool right next to the Object Snap icon:
Figure 3.27: The Object Snap tracking option in the status bar
Now, let's consider a scenario where we want to make a circle at point P, which is the intersection of the AB and ED lines if extended further along the dashed line, as shown:
Figure 3.28: A sample drawing for the Object Snap tracking option
In this case, if we don't make the BP and PD lines, then we won't get the intersection point of these lines, which should be at the center of the circle. So, to get a reference like this, which does not actually exist in the drawing but exists only when existing drawings are extended further, we can...
