Deed plots and the drifting of the magnetic north pole

The Earth’s magnetic north pole has been drifting over time. During the last few decades, it has moved by an average of about 30 miles per year. This means that our compasses are pointing in a different direction as they did yeas ago. Therefore, the difference between truth north and magnetic north, what we call the magnetic declination, has been changing as well. Consequently, those of you who work with very old deed descriptions based on the magnetic north will need to take this into consideration.

Ref:
https://earthsky.org/earth/magnetic-north-rapid-drift-blobs-flux

https://theconversation.com/old-stone-walls-record-the-changing-location-of-magnetic-north-112827

When you enter deed calls into the program can you start it on a specified corner then rotate to another known GPS’d corner?

Yes. The Deed Calls app as well as the Deed Calls function in some of our apps will let you change the first node location and the orientation of the deed plot.

Deed Calls Pro 1.0.3 update

The Deed Calls Pro app for iPad has been updated with the following changes:

1. The deed plot area will be filled with the specified area pattern when the closing error is less than 1 meter.

2. The issue reported by a user that Auto-close did not work properly with non-zero Orientation has been fixed.

Forester GPS GIS 1.0.5 update

The Forester GPS GIS app for iPad has been updated with the following changes to the Create Deed Calls function:

1. The deed plot area will be filled with the specified area pattern when the closing error is less than 1 meter.

2. The issue reported by a user that Auto-close did not work properly with non-zero Orientation has been fixed.

Farming GPS GIS 1.05 update

The Farming GPS GIS app for iPad has been updated with the following changes to the Create Deed Calls function:

1. The deed plot area will be filled with the specified area pattern when the closing error is less than 1 meter.

2. The issue reported by a user that Auto-close did not work properly with non-zero Orientation has been fixed.

Deed Calls & Stakeout 1.0.3 update

The changes in the 1.0.3 update of the Deed Calls & Stakeout app for iPad and iPhone are:

1. The deed plot area will be filled with the specified area pattern when the closing error is less than 1 meter.

2. The issue reported by a user that Auto-close did not work properly with non-zero Orientation has been fixed.

Entering Deed Calls with non-zero orientation angle

A Deed Calls & Stakeout user reported a couple issues:

“1) I can only get the fill to work if I use auto close.

2) Deeds I’m working with specify directions in magnetic north, so I use the orientation angle to correct for magnetic declination. When using an orientation angle to correct for magnetic declination, auto close does not work correctly.

. . . . . Are these bugs, or am I using the app incorrectly? If they are bugs, any chance these will be fixed? Thanks for the great apps”

Thank you very much for reporting these issues.

1) We will modify the app such that the area will be filled with the area pattern when the closing error is less than 1 meter.

2) The issue of Auto-close with non-zero Orientation will be fixed in the next update. Meanwhile you could complete the deed plot with Orientation set to 0 then enter the actual orientation angle to rotate the plot.

 

Deed Calls – Area – Perimeter updated to version 1.1.1

Version 1.1.1 of the Deed Calls – Area – Perimeter app for iPhone and iPad is now available for download from the App Store. The update provides the following changes:

1. Changed the default label positions in the deed plot such that the angle label will show above a line segment, and the distance label will show below the line segment.

2. In Menu\Setup\Feature Labels, added the options to display the angle label above or below the line segment in the deed plot.

3. Changed the order of the Horizontal Distance and Horizontal Angle fields in the Deed Calls input screen.

4. Fixed bug in displaying angles in DMS when the Decimal Digits is set to 0 for angles.

5. Disabled map tilt in Show Standard Map mode.

6. Added Orientation field to enable re-orientation of the deed plot.

Can Deed Calls & Stakeout and Deed Calls – Area – Perimeter share data files?

A land surveyor using Deed Calls & Stakeout asked if there was an economical way of providing his clients with the deed calls data to enable them to go out and see where they are in relation to their property lines.

As the Deed Calls – Area – Perimeter app can read the .dcf files created by the Deed Calls & Stakeout app, the clients could purchase the less expensive Deed Calls – Area – Perimeter app and use it to view the deed plot.

The current Deed Calls – Area – Perimeter app does not provide the Orientation field to reorient a deed plot. Therefore, the client will see the exact same plot as the surveyor only if the deed plot has the correct orientation without needing a non-zero value entered into the Orientation field in Deed Calls & Stakeout. However, we’ve just received news from our software programmers that the next update to the Deed Calls – Area – Perimeter app will provide the ability to change the orientation of a deed plot.

Can Deed Calls & Stakeout help me locate a property boundary?

“If I have a survey and want to identify the boundary line between my property and my neighbors do you have an app that can accommodate that. Doesn’t have to be exact I’m just looking for an idea of where the property line is.”

There are two apps that you could consider.

Both the Deed Calls – Area – Perimeter app and the Deed Calls & Stakeout app will let you enter the direction and length of the boundary line and plot it on the map.

The Line Stakeout function in the Deed Calls & Stakeout app will report your distance from the line as you move parallel to the line. The Deed Calls – Area – Perimeter app does not provide the Stakeout functions. This means that you will visually judge your distance from the property line by watching the GPS marker on the screen that represents your position.

The Deed Calls – Area – Perimeter app does not provide the Stakeout functions, but you can judge your distance from the property line by watching the GPS marker on the screen that represents your position.

Now, with either app, you will need to specify the point at which the boundary line starts. With the Apple Map displayed on the screen, select that point as the first node, then add one line segment and enter the distance and bearing of S2-18-46E provided on your printed survey map.

If you are unable to identify the starting point of the boundary line, then try to find another corner of the property that can be easily identified on the displayed Apple Map, such as a road intersection. Then enter all the line segments leading to and including the boundary line.

How to rotate a deed plot

You can create a deed plot by entering the distance and bearing information into the Deed Calls – Area – Perimeter app, the Farming GPS GIS app, or the Forester GPS GIS app.

Sometimes the deed plot does not align with the background map, and you would like to be able to re-orient the deed plot.

The ability to re-orient the deed plot is provided by PC-GIS X. You can save the deed calls in a .dcf file and open it in PC-GIS X. In PC-GIS X you can specify an orientation angle for rotating the deed plot. PC-GIS X will let you display the deed plot on top of a geo-referenced raster image (*.tif, *.jpg, *.sid, *.ecw). You could also have a Feature created based on the deed plot and export the Feature in .kml format to display on Google Earth.

You could use PC-GIS X to create a deed plot then save it in .dcf format for use with your Deed Calls – Area – Perimeter, Farming GPS GIS, or Forester GPS GIS.

Edited 7/23/13: You can rotate a deed plot using the newly released Deed Calls Pro app for the iPad.

Edited 5/19/14: You can rotate a deed plot using Deed Calls & Stakeout or the updated version 1.1.1 of the Deed Calls – Area – Perimeter app.