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Re: Importing Maps

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Follow these steps to import data from Ag Link software (from Agris):

1. Have the data exported from AgLink in a Surfer Format. This is a space delimited format that has its data arranged in columns that correlate with specific values for what was tested (pH, P, K, etc..). The person that provides you with the data should be able to provide you with a description of what is in each column.
2. Make sure that your map has been geo-referenced. The best options for creating geo-referenced maps is to use the Auto-Draw feature (if you have yield data) or use Farm Site Mobile with a laptop and GPS receiver to drive the field boundaries. If your field boundaries are not based on accurate GPS coordinates, the data will not be imported at the exact position.
3. Use the Registration Points tool to register a point in the Southwest corner of the field that you have samples from. Be sure to give the point a name (such as SW corner of Field#1). You need to register the point because the data is in Local Plane coordinates in feet from the Southwest corner of the field.
4. Create a layer for the soil tests. Be sure to set the layer up to work with all of the different items that are included with the AgLink data (such as Sample ID, pH, P, K, Ca, etc..) and is a Point Layer. In addition to the information stored in the file, you may wish to add a spot for Sample Date.
5. Go to the Import box and use Generic Import and select the file to be imported (the AgLink file) and select the layer you created in Step#4 as the layer. Click on the Import button.
6. In the Generic Import box enter an Import Description (such as "Aglink" or "Surfer") and click on the Save this Format option. This will allow you to recall this format later (and you won%92t have to go through the following steps for subsequent imports).
7. The data is space delimited and the coordinates are in Local-Plane Feet. There are 0 header lines in the file. Do NOT select "Match file data to layer data points."
8. In the area below in the Position or Value area, define which column each test value is in. In the Set Value By area, select "From File" so it uses information located in the file. You will see an example of the first line of information. Repeat this step for every field. If you added a Sample Date to the layer then select Constant Value for the Set Value By and enter the date the samples were taken in the Position or Value box.
9. When you are done filling in the table click on the Import button and you will be asked for the coordinate of the South West corner of the field. Select the name that you registered in Step#3 and select the OK button and the data will be imported.
10. You will need to make a legend for each field. You can then grid and average the data and make contours with the data. Try using different contour types, grid sizes, etc to achieve different maps.

R. Scott Nusbaum CPA
Farm Works Software

SubjectAuthorPosted

Importing Maps

Jim Hemminger February 04, 1997 12:00AM

Re: Importing Maps

Adolph Schaefer February 14, 1997 12:00AM

Re: Importing Maps

R. Scott Nusbaum - Farm Works Software February 04, 1997 12:00AM



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