Ag Leader SMS Basic and Advanced Manual - Manual (Page 115)

How to ...
Adding or deleting ranges can cause undesired results to the existing prescription dataset. A link to
the reference layer is not stored, so the prescription dataset is not updating based your changes in
regard to the reference layer that was originally used to create it. Adding ranges and assigning
values will cause the prescription dataset color and value assignments to shift. Changes to the
number of ranges and the order of values are not recommended and if desired you should create a
new prescription dataset with the changes in mind.
4. Once the desired edits have been made you can click the Export button to generate an export for any of the
supported export file formats. Skip this step if you don’t want to export a file based on the edited prescription
dataset without saving the edit dataset into the management tree.
5. To save the edited or new prescription dataset into the Management Tree, click the Save button. If the
prescription dataset is new you will be prompted to enter in the management information. If the dataset was
an existing one that was edited, then the changes will be automatically saved to the proper place in the
Management Tree. If you want to keep your original dataset in the Management Tree and also create a
saved dataset of the edited dataset select Save As… to save a new dataset without affecting the original.
Once saved, click the Close button to exit the Prescription Editor.
How to create a soil sampling dataset.
Follow these steps to create a soil sampling dataset:
1. Create a new map or add a layer to a map that you intend to create soil sampling points, grids, or regions off
of.
2. From the File Menu, select New then Soil Sampling Layer or click the New Soil Sampling icon on the Map
Toolbar.
3. The Soil Sampling Editor dialog will now appear with a copy of the layer(s) that was in the Map window.
4. You have several options for creating a soil sampling points. The following are your options:

Manually Add Points-Select the Add Sample Point tool and click on the map to add sample points
manually. Manually adding points can be done at any time, even if you select to use one of the
two methods that will generate a gridded or region sampling set for you.

Soil Sampling Wizard-Select the Generate Samples tool and follow the steps in the wizard to
create a gridded or region based soil sampling dataset.

Select a Region to Grid-Select the Select Sampling region tool, draw a polygon region to grid on
the map, and follow the gridding steps to create a gridded soil sampling dataset.
5. If you select the Generate Samples tool follow these steps, if not skip to step 6:

Select a layer and/or sub-layer to base your sampling dataset of off and click NEXT>. This step is
very useful if you are creating a sampling dataset by Soil Type, and allows you to select particular
soil types from a layer to generate sample points, grids, or regions for.

Now select the objects that you would like to base your sampling dataset on. Use the provided
selection tools to make the desired object(s) selection. Click NEXT> once you have made your
selection(s).

Sampling Parameters must now be set in order to generate the sampling dataset. Three options
for creating the sampling dataset are provided:

Create Sample Points - Select this option to create sample points.

Create Sample Grids - Select this option to create sample grids.

Create Sample Regions - Select this option to create sample regions from a selected
polygon(s), like a soil type layer or management zones.

Once you have selected the type of sampling dataset you want to create the parameters below
the options will allow entries or selections depending on what is appropriate for the creation type
you selected. If the Create Sample Points or Grids option was selected then enter an X and Y grid
size to base the sample point spacing off of. Then select a Grid Pattern that will decide where the
sample points are placed in the grid cells that are created. You must also pick a Grid Start location
that will be the place where the first sample point is placed and then a Grid Direction is needed
that specifies in what direction points will be placed from the start point. Click NEXT> once all the
parameters have been set. The Create Sample Regions has no sampling parameters and strictly
uses the polygon objects you selected in the first two items of step 5 to create your sampling
dataset.

A preview of the sampling grid and points that will be created will now appear. The grid and its
points can be shift left/right and up/down or rotated 360 degrees about the grid center. Click the
Reset Button to reset the grid location to the position it was when the preview was first created.
Click the Finish button when you are ready to create the sample points and add them to the Soil
Sampling editor map. A preview is not shown if you selected the Create Sample Regions option.
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