After converting the compass degree headings to cartesian degrees, we convert them to radians and use basic trigonometry to convert the angle and distance into distances in x and y. Knowing this, it is probably easier to decipher the code below. The first quadrant N-E is from 0°-90°, the second quadrant N-W from 90°-180°, the third quadrant S-W from 180°-270° and the fourth quadrant S-E from 270°-360°. This is then converted to cartesian degrees by the nested if/then. The angle is calculated as degrees+minutes/60+seconds/3600. The elements of a list or a tuple are indexed by a number starting with zero. Deedpoint is a list of tuples, while 'd' is a tuple. In Python, the code for converting looks as shown below. A positive angle is measured counterclockwise from the x-axis. You can do the conversions in a spreadsheet, but it is kind of complicated as you can see below because of the compass degree headings.īasically, in a cartesian coordinate system, the positive x-axis goes to the right from the origin (east in compass degree headings), and the y-axis goes up (north in compass degree headings). Using a homemade protractor like mine, chances are you'll have to fudgeĪ bit at the end to make your property close up. Your final line will end up hitting your first dot, but don't be tooĬoncerned if it's a short distance off. (I recommend plotting yourīoundaries in pencil and erasing your direction dots as you go along so Now, go back and mark the distance and direction for That zero is at the first dot, with the ruler making a straight line On top of the dot (making sure north was lined up correctly), and madeĪ mark at what I estimate to be 63.3 degrees in the northeast quadrant. Location in the upper left side of the paper. Northwest corner of the property, I set my first dot in a random Working with mentioned that the boundaries listed start at the Fifteen minutes later, I had the homemade protractor The center of the protractor to allow me to line the tool up The protractor extend onto the transparent tape, then cut out a hole in I just printed out the image to the left, cut out a circle of paperĬontaining the protractor, and coated it with clear tape that extended Remember how to orient the protractor to deal with all the directions anyway, I lost my tenth grade protractor somewhere or other and didn't want to Reasons I'll explain tomorrow), a ruler, and a protractor. Map! You'll need a sheet of paper (graph paper is better, for Again, setting up your spreadsheetĬarefully makes it easy to convert from these older measurements to Spreadsheet and let it do all the math for me.Ī side note, older deeds often list distances in poles and links.Ī pole (also known as a perch or a rod) is equal to 16.5 feet and a Measure in inches, but my rulers tend to divide inches up into eighthsĪnd centimeters into tenths, which makes it easier to deal withĭecimals on the centimeber side. Larger property or to 50 feet on a smaller property. After playingĪround with my sheet of graph paper, I settled on 1 centimeter for 200įeet - you might want to set 1 centimeter equal to 100 feet on a Spreadsheet shows how many centimeters I'll measure on my map for eachĭistance, which requires me to choose a scale. Spreadsheet rather than jotting down the numbers in a notebook since IĬan set up a formula to do all the math for me. Seconds by 360, the minutes by 60, and leave the degrees alone, then addĪll three numbers together for each point. Two columns come from? To calculate decimal degrees, divide the Six columns are copied directly from the deed, but where did the other The one shown below to keep myself on track. I like to sum up all of the points in a spreadsheet like Only have four corners, but most properties in our neck of the woodsĪre oddly shaped and contain ten or twenty points, which complicates Have a section a bit like the first image in this post which lists a Out where the real boundaries are? The geekily inclined willĮnjoy pulling out their deed and mapping the property boundaries Shape of your property on the tax assessor's map could be wrong. How to map property boundaries from a deed
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