Things You'll Need
Instructions
Open the map blueprint and place it on a table or desk. Set the compass down on the document.
View the needle on the compass, then reposition the document so that the top is oriented to "North."
Determine your starting location on the document and place the compass directly over this spot.
Hold the compass to ensure that the needle remains pointing north. Point the direction indicator on the compass in the direction that the structural object is facing.
Make a note of the graduation markings on the edge of the compass. These are the bearing headings to use to indicate the object's position.