Once we get more details and give more advice, you'll probably find you can use your GIS. So, it is quite possible that neither GIS nor legal description are wrong. As a minimum, there are usually scaling and rotation issues to deal with. Hence the need for grid-to-ground and ground-to-grid conversions. Legal plans (plats) and legal descriptions are not in any projection (grid) system they are on a local, ground-based plane. This is a screenshot of the legal description I have been using. The polygon is supposed to surround the smaller buildings in the middle. This is a screenshot of what I have been working on. I can't make any recommendations until I figure out what the issue is and whether it can be fixed. So that leaves me with thinking I made a technical user error. I am also not convinced that the legal description is wrong. I am having a hard time believing the legal description is right and our building feature class is wrong because that would mean all the data we have in our database is wrong. It just needs to move to the south about 100 ft. It is very very close, but the boundary I COGO'ed does not cover all the apartments in my building feature class that it needs to. So far I can't report yay or nay because yes I successfully mapped using a legal description, but no it did not end up where it should. If more details about my steps are still needed please let me know, but for now I am trying to keep it simple to avoid boring or dissuading the reader from reading.Īlso, for information purposes, this project was given to me to see if it was possible to use GIS to map Legal Descriptions. From the True Point of Beginning I use the COGO traverse tool again to create a polygon for the property boundary based on the legal description.
I started an editing session and began using the COGO traverse tool to create a polyline feature that according to the legal description commences at the corner of section 28 (remember I have quarter section map, which has the referenced section) and ends at the "True Point of Beginning.".I checked the "Ground to Grid Connection" box, then I made the "Distance Factor" 1 since my projection is in State Plane US Feet. In my editor toolbar I went to editing options and changed the "Direction Type" to Quadrant Bearing, and the "Direction Units" to Degrees Minutes Seconds.Creating a polyline shapefile and a polygon shapefile.Again, all data is set to the same projection. This image is based on the legal description and comes from the engineers who worked on the apartment complex. I also have a georeferenced image in my map that shows the property boundary surrounding the particular apartments I am looking at. The data I already have for the area is vast, but I am using a buildings feature class (polygon features), and a quarter section feature class (polygon features) from the datasets in our database. The projections for all of the data in the map are the same so I'm not sure if it is because there is a specific projection used for legal descriptions or what. I did not expect it to line up perfectly, but I did expect it to be closer than it was. My issue arose because it did not line up with data I already have of the area. Once your GPS is configured in ExpertGPS, just click Receive from GPS on the GPS menu or toolbar, and all of your waypoints, routes, and tracks will be copied from your GPS to ExpertGPS.I successfully used the COGO traverse tool to create a polygon for a piece of property described in a legal description.
#Mapping legal land descriptions in expertgps serial#
If you have a USB to Serial Adapter cable, read this. Magellan and Lowrance should use 4800 or 9600 baud. Garmin GPS receivers always use 9600 baud. If you have an older GPS with a serial port, find the Interface or COM Port setting on the GPS, and make sure the baud rate matches that in ExpertGPS. If you have a new (2009 or later) Garmin GPS that uses a USB cable, just plug it in and make sure it is in USB Mass Storage Mode. Click OK.Ĭonfigure Your GPS Receiver's Settings. Find and click on your exact GPS model in the list to the right. Select the manufacturer of your GPS receiver (Garmin, e.g.). Click Preferences on the Edit menu in ExpertGPS, and click on the My GPS Receivers tab. Add and Configure Your GPS Receiver in ExpertGPS.
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