Find your
farm with the zoom-in tool
Activate the zoom-in tool (1) in the toolbar. When you click on that tool
a rectangle is drawn around the icon.
Use the mouse to zoom-in. Click at the upper left corner of your county with the
left button of your mouse and hold that button down and drag the
mouse to the lower right corner of the county and release the mouse-button. The tool will say: "Loading".
You can zoom-in using 2 or 3 steps to find your farm.
In each scale of the
zoom-in process appropriate layers will show up, like roads, rivers, streams.
When the scale of townships has been reached aerial photos will show up in the
background. Photos of the fall of the year 2000 after harvest have been incorporated.
Identify individual fields
Activate the polygon-tool (5) in the toolbar. Draw each field by clicking 4
or more corners of a field on the map. Double-click or Control-click for the
last corner of the field. The application will generate a new map with an arrow
in the center of the field indicating the
slope direction down hill. A result
table is created at the bottom of the page. Each user can identify 8 fields. With the show all fields-button
you can show a map with all your fields. Each map can be displayed in a new
window, for saving and printing purposes on your own computer, through
tool 9. Notice: allow pop-ups in your Windows XP to get that page.
Your feedback
Please give us feedback on this mapping tool at
evo@iastate.edu or call 515-292-7055.
We would like to work on your suggestions, remarks and questions, before we make
further announcements for a larger public.
Ed van Ouwerkerk & Amritpal Kang,
August 5, 2005