2. Toolbar Buttons

  2.a Map Operations
      Zoom in - Zoom into the center of the image.
      Zoom out - Zoom out from the center of the image.
      Pan - Click and drag within the map to move layers around the display.
      Drag Zoom - Click to define a rectangular area to zoom to.
      Home  - Return to the default view of the US.
      Refresh - Click to refresh the data
      Previous View - Click to go to previous views
      Next View - Click to go to the next views
      Save the Current Extent - Click to Save Current Extent for Use Next Time


  2.b Info Query
      Identify Crop at Pixel - Identify the land cover category, category value number, and color associated with a certain pixel.
      County Census Information (2007) - Click within a county to identify county name, state name, FIPS county code, total crop acreage, and total irrigated crop acreage.


  2.c AOI Operations
      Define Area of Interest by State/ Agricultural Statistics District(ASD)/County - Use this tool to focus on a particular state, ASD, County, or combination of state and ASD or county.
      Define Rectangle Area of Interest - Click and drag to define rectangular area of interest.
      Define Polygon Area of Interest - Define area of interest by clicking around boundary of interest. Double click to complete polygon.
      Define Circular Area of Interest - Click to define center of circle and drag to define size.
      Import Vector File to Define Area of Interest - Click to import the vector file (in GML or ESRI Shapefile format) to define area of interest.
      Export the Defined Area of Interest - Click to export the current area of interest o a GML or ESRI Shapefile file.
      Clear the Defined Area of Interest - Click to erase the selected area of interest.


  2.d Statistics
      Area of Interest Statistics - Generate table of pixel counts and acreage totals for all categories within the area of interest.
                View Table - View table of results in a separate window
                Print - Print table
                Export Table - Export the table as a .csv file
                Pie Chart - Display all table values in a pie chart
                Bar Chart - Display all table values in a histogram
                Export the selected crop(s) for mapping - Produces .tif picture of selected crops


  2.e Change Analysis
      Change Analysis - Find difference in land cover between two different years over a defined area of interest.
                View Table - View table of results in a separate window
                Print - Print table
                Export Table - Export the changes as a .csv file
                Preview Changes - Preview the crop changes and download them in a .tif file
                Export the selected crop changes for mapping - Produces .tif picture of selected crop changes

      Swipe CDL Images -  Swipe CDL images for tow years to compare them in details.


  2.f PDF Creation
      Create PDF - Generate the PDF file with various paper size of the defined area of interest


  2.g CDL Retrieval
      Download CDL -  Download the CDL of the defined area of interest for the specified years
                Save - Save the CDL files to local computer
                Preview - Preview the CDL files
                Export to Google Earth - Generate the KML file for display in Google Earth