Sweetwater County Map Server Help Page
Contents
- Navigation: Zoom In, Zoom Out, Re-Center the map
- Getting information from the map (Info Tool)
- Finding things on the map (Jump To... Find)
- Controlling what is displayed on the map (Layer Control)
- Measuring distances and areas
- Printing, Saving & Sharing a map view
- Adjoiner buffer list
- Technical information
Navigation
To Zoom In - Select the
tool from the tool bar and then either:
- Click on the map to zoom by a factor of 2
and re-center the map on your click point.
- Or hold the mouse key down to drag a box
over the area on interest.
To Zoom Out - Select the
tool and then click on the map.
- Click on the map to zoom out by a factor
of 2 and re-center the map on your click point.
- Or hold the mouse key down to drag a box
Mouse Wheel Zooming
- Roll the mouse wheel forward to zoom in closer
- Roll the mouse wheel back to zoom further
out
To Pan - Pick the
tool.
Drag your mouse to pan the map.
Next and Previous Views
After you have moved around om the map by panning and/or zooming,
the
and
buttons will allow you to quickly move backwards and
forward through your views.
The "JumpTo ..." drop-down list provides a means to
quickly re-orient the map to various areas in the County.
Pick the desired area from the list and wait a moment
while the map re-draws.
|
 |
Zoom to Longitude / Latitude
Select the
tool from the tool bar and enter the longitude and latitude of the location that you wish to center the map on.
Longitude and latitude may be entered in various ways:
| Format |
Longitude |
Latitude |
Notes |
| Decimal Degrees |
-107.0726 |
43.7380 |
negative sign before longitude is not required |
| Degrees Minutes Seconds |
107 04 28.65 |
43 44 16 |
degrees minutes and seconds separated by a single space
seconds can have decimal fractions |
| Degrees Decimal Minutes |
107 04.4592 |
43 44.18 |
degrees and minutes separated by a single space
minutes can have decimal fractions
|
The longitude and latitude that you enter must be on either the
NAD83 or WGS84 datum (generally used in GPS and newer maps) and not NAD27
which was used on the original USGS topo maps. Entering a NAD27 longitude / latitude
could cause the map postion to be off by several hundred feet.
Getting Information from the map
Select the
tool from the tool bar and then either:
- Click on the map
- Or hold the mouse key down on the map and
drag a box over the area on interest to select
multiple lots or parcels.
A pop-up info window will display information
on the parcel(s) you picked. Your browser
must allow pop-ups for this site. Most of
the information shown in the window comes
from the County Tax Roll.
Finding things on the map
The MapServer can find properties by:
- Street address
- Legal description (Subdivision and Lot, or
Township, Range, Section)
- Property owner name
- Parcel ID Number (PIDN) or Tax Roll Account
number
Searches can be entered either as free-form
text in the search box, or in the "advanced
search" by clicking the search button.
- Search by Street Address
- You may enter a street address number (not
required), and a street name. Generally it
is best to leave off the "Road",
"Street", "Ave", etc.
In the free-form text search, a full street
name is required. In the advanced search,
a partial street name works (this is handy
if you are not sure of the spelling of a
street name). You will be presented with
a list of addresses matching your search.
From the list you may pick an address to
map.
- Search by Legal Description
- You can enter a subdivision lot number (optional)
and a subdivision name. You will be presented
with a list of matching lots. From the
list
you can pick a single lot to be mapped.
- Township, Range, Section searches generally
take the form of: T20N R90W SEC 4. The free-form text search
- Search by Owner
- You may search by property owner name. A
list of matching property owner names will
be presented, from which you may select a
property to be mapped.
- Search by Parcel Number
- PIDNs are formatted as: 2090-04-1-00-001-00 however a partial PIDN works also
- Tax Roll Account Numbers must begin with
a letter followed by 7 digits (all padding
zeros must be included) e.g. R0012345
After you have used the "Map It"
button to highlight a selection from any
of the above searches, the selection will
remain highlighted until another searches
is run, or until it is "Unselected"
by clicking the
button.
Map Layers
There is too much information to show all
of at one time, so the map is organized in
"layers" of data. A list of available
layers is displayed to the right of the map.
There are labels, foreground layers, and
background layers. The foreground layers
are lines and hatches, which are more or
less transparent, so you can turn on as many
as you want. The background layers are opaque,
so it is only possible to turn on one background
at a time.
Many of the layers are scale dependent, especially
the labels. This means that even if a layer
is turned on it may not be displayed if the
scale is too large or small (if you are zoomed
in too far, or zoomed out to far). For example,
street address numbers simply can't be read
at scales smaller than 1:10,000 so they are
not displayed. If you do not see a layer
that you have turned on, try zooming in a
bit.
Measuring Distances and Areas
Approximate distances may be scaled from
a map using the "Ruler" tool
. Select the tool, and then click a starting
point on the map. Subsequent clicks on the
map allow you to measure distances along
a route or around a polygon. Double click
to terminate a distance sequence, and the
total distance will be displayed on the left
side of the bottom status bar.
Approximate areas may be calculated by using
the "Area" tool
. Clicking points on the map will draw a
polygon. Double click to finish the polygon,
and the total area will be displayed on
the left side of the bottom status bar.
Saving & Sharing a Map View
Printing, Saving & Sharing a Map View
Printing: The "print" link places the current
map view into a new browser window without
the toolbars, legend, or other map elements.
Use your browsers print options to print
the window. Before using the "print"
link, you should size your browser appropriately
for landscape or portrait orientation. e.g.
if you want a portrait orientation, adjust
the size and shape of your browser window
so that it is taller than it is wide before
clicking on the "print" link.
If you would like to save a view of the map
to your favorites (bookmarks) or email a
view to someone, click link. This will copy information into your brower's
address bar that defines the center of your
map, the zoom, the layers that you have turned
on, and anything that you have selected on
the map. You can now use your browser's "Add
to Favorites" or "Bookmark This
Page" menu option to save the view.
To email a view, click link and then copy the contents of your browser's
address bar into an email. Be sure to get
the whole address (URL) which may be quite
long. Below is an example of a long link
centered on the Sweetwater County Courthouse
with the aerial photography layer on.
http://www.sweet.wy.us/mapserver/map.html?zoom=8.457229523355837&lat=376010.81498&lon=1772079.47395&layers=TB&mslayers=ownership%20roads%20aerial09&filter=pidn%3D%271807-22-1-13-005-00%27&qlayer=ownershipq
If you don't like such a long URL, you can
use a free service of tinyurl.com to shorten it.
Saving to your computer: Saving a link is usually preferable to saving
the image, but if you do need to save the
image, printing to PDF from the print window
is usually the most reliable method of saving
a copy of a map view to your own computer.
If you do not have a PDF writer, the print
window can be used to save the map as a GIF,
JPG or BMP image. Right click on the map
and select "Save Picture As" or
"Save Image As". Your browser may
not correctly identify the image type, so
you may have to help it. If you have aerial
photography turned on, try saving as JPG.
If you do not have aerial photography on,
try saving as GIF. If neither of these options
work, try BMP. Also note that not all picture
viewing software reads all image formats
correctly - if your picture viewer says "Invalid
format" or something simular, try opening
the file with a different program.
Adjoiner Buffer List
The buffer
tool creates a list of all parcels within
a specified radius of a parcel(s) and also
shows all of the parcels within the radius
on the map. This can be used to create an
adjoiner notification list.
- Before the buffer tool can be used, one or
more parcels must be selected (highlighted).
Parcels are selected by using the Map It link on either the Info Tool window or the
query Results List page.
- With a parcel(s) selected, click the buffer
tool. You will be prompted to specify a buffer
radius. All parcels within your specified
radius will be selected even if only a very
small part of the parcels lie within your
buffer
- A mailing address list suitable for use in
a Mail Merge is created, and the map window
is updated.
- The buffer radius is shown in blue.
- The parcels within the buffer radius are
outlined in orange.
Technical Information
Firefox may not move the active window to
the front if that window is already open.
To change this behavior:
- Open the Firefox Options panel
- Select the Content tab.
- Click the Advanced... button to the right of "Enable Javascript".
- Check to enable the Raise or lower windows option.
The Sweetwater County Web Map Server was
developed by Greenwood Mapping, Inc.
The system is powered by MapServer, OpenLayers, and PostGIS Open Source software.