TIGER Map
Service
|
<INPUT TYPE=IMAGE...>
. I think Netcom NetCruiser still has this problem, and older versions of other web browsers. You'll need to upgrade your web browser.
INTERNAL POINT
An internal point is a set of geographic coordinates (latitude and longitude) that is located within a specified geographic entity. A single point is identified for each entity; for many entities, this point represents the approximate geographic center of that entity. If the shape of the entity caused this point to be located outside the boundaries of the entity, it is relocated from the center so that it is within the entity. If the internal point for a block falls in a water area, it is relocated to a land area within the block. On machine-readable products, internal points are shown to six decimal places; the decimal point is implied.
All of the geographic location (lat/lon) values from the "New Location" button and the U.S. Gazetteer are derived from these calculated values. Alternate geographic values may be obtained from the USGS Geographic Names Information System (GNIS) database or by telnet at the site martini.eecs.umich.edu at port 3000. Please remember the TMS input is in decimal degrees and not Degrees:Minutes:Seconds.
http://tiger.census.gov/cgi-bin/mapsurfer?lon=-77.028&lat=38.89&wid=.06&ht=.01&mark=-77.0364,38.8973,redpin,White+House;-77.01,38.8895,blueball,Capitol
Here is an inventory of available symbols. If you would like a custom symbol, please send e-mail to mapsurf@geo.census.gov.
Multiple Marks may be placed on the URL only. There currently is not an interactive mechanism for placing multiple markers on the map, one at a time.
Last Revised: Thursday, 18-Feb-99 13:59:37