For this weeks lab we created a geoprocessing model that was used to create a script that was used to create a tool. The results of the model can be seen below. Creating the model was a first a bit confusing. The instructions were very basic, however, it made me think a bit more about what I was doing to get to the desired results. Once I got in the right frame of mind, setting up the model was rather simple. When written out it seems rather long and complicated, but it is mostly repetitive.
The model I created was used to:
1. Clip the Soils layer to the Basin layer
2. Select the Soils that were classified as "Not Prime Farmland"
3. Erase the previously selected soils from the basin layer
 |
| Basin soil with non prime farmland removed |
The steps I tool to create the model included:
1.
Open ArcMAP
2.
Add basin.shp and soils.shp to the map via the
Add Data tool or ArcCatalog
3.
Right click Mod2_jwilliams.tbx (previously
created)
4.
Click on Model
5.
Drag the Basin and Soil layers into the Model
window
6.
Open ArcToolbox
7.
Expand the Analysis Toolbox and the Extract tool
set
8.
Click and drag the Clip tool to the Model window
9.
Click the Connect tool in the Model window
10.
Click on the soils layer and then click the clip
tool
11.
Choose Input Feature
12.
Click on the basin layer and then click the clip
tool again
13.
Choose Clip Feature
14.
The Clip tool and output feature class shapes
will change to solid colors and the output feature class will be renamed to
soils_clip.shp
15.
Right click the clip tool and run it – this will
populate the output which is necessary for the next step
16.
Go back
to the ArcToolbox
17.
Clip and drag the Select to the Model window
18.
Click the Connect tool
19.
Click on the soils_clip.shp and then click the Select tool
20.
Double click the Select tool and configure the expression
as "FARMLNDCL" = 'Not prime farmland'
21.
The Select tool and output feature class shapes will change
to solid colors and the output feature class will be renamed to soils_clip_select.shp
22.
Right click the select tool and run it – this will
populate the output which is necessary for the next step
23.
Go back to the ArcToolbox
24.
Expand the Overlay toolset
25.
Click and drag the Erase tool to the Model window
26.
Click the Connect tool
27.
Click the Basin layer and then click the Erase
tool
28.
Select Input Feature
29.
Click the soils_clip_select.shp output and then click
the Erase tool
30.
Select Erase Feature
31.
The Select tool and output feature class shapes will change
to solid colors and the output feature class will be renamed to soils_clip_select_erase.shp
32. Right
click the select tool and run it
33. You
can add the layers to the map from the Add Data tool or the ArcCatalog
