Map Room

This is a memo how to use the Digital Chart of the World. The DCW is not a public domain. The Penn State only has permission to redistribute the data by country. The data is held by ESRI. The orignial data are from the Denfence Mapping Agency.

The Map Room is a Digital Chart of the World Service of the Pennsylvania State University.

The top link is:

http://maproom.dlt.psu.edu/dcw/.

First we get a map of the world where we can select one of the continens:

• Africa
• Antarctica
• Asia
• Australia
• North America
• Central / South America and the Caribbean

If we select for example Europe, we get with the cgi href and cgi paramater:

http://maproom.dlt.psu.edu/cgi-bin/dcw/dcwarea.cgi?Europe

the new world map and a list the countries of Europe.

Albania Andorra Austria Belarus Belgium Bulgaria Cyprus Czechoslovakia Denmark Estonia Faeroe Islands Finland France Germany Gibraltar Greece Guernsey Hungary Iceland Ireland Isle of Man Italy Jan Mayen Jersey Latvia Liechtenstein Lithuania Luxembourg Malta Moldova Monaco Netherlands Norway Poland Portugal Romania San Marino Spain Sweden Switzerland United Kingdom Yugoslavia

The web form action is /cgi-bin/dcw/dcwcountry0.cgi with the hidden option area set to the continent and the selected option set to the country, in our example Europe and Switzerland:

We then get the web from where we can selected to download the GIS digital chart for or to display the chart image of Switzerland:

This will allow you to download GIS data in ARC/INFO and ARCVIEW formats1

This will allow you to view layers as GIF files, and to copy these images to your hard drive.

Chart Image Case

To downlad the GIS data for switzerland the web form action is /cgi-bin/dcw/dcwcountry.cgi with the hidden option country=workspace, srcname=Switzerland, area=Europle, country=, data=1. To display the chart we need data=2.

We then can select wish GIS information we want to map. We pick up all polygon and lines layers:

	Political/Ocean	(Point)
	Populated Places	(Polygon)
	Populated Places	(Point)
	Rail Roads	(Line)
	Roads	(Line)
	Utilities	(Line)
	Drainage	(Network)
	Drainage	(Point)
	Drainage Supplemental	(Point)
	Hypsography	(Network)
	Hypsography	(Point)
	Hypsography Supplemental	(Point)
	Land Cover	(Point)
	Aeronautical	(Point)
	Cultural Landmarks	(Point)
	Transportation Structure	(Line)

Populated Places (Polygon) Rail Roads (Line) Roads (Line) Utilities (Line) Drainage (Network) Hypsography (Network) Color map of Hypsography At least 5 minutes to complete. Simple black and white map of Hypsography   Less than 2 minutes to complete. Transportation Structure (Line) Check here for a postscript image to download.

This is a list of layers you have selected for Switzerland. From this list, select which you wish to see as a gif image. If no layer is selected you will only see a boundary map for Switzerland. Once you have made your selection(s) click the CONTINUE button. Note: The more layers you try to map at one time the more time it will take to compute the gif image. Also mapping the polygon and/or network layers will take longer than mapping the line and/or point layers.

GIS Data Case

Indicate what kind of computer system you will are using.

UNIX (UNIX compression)
PC/NT (PC compression)
NONE
UNIX (ArcView2 )
UNIX (ArcView3 )
Windows 3.x/NT (PC/NT ArcView2 )

Because of the amount of data being processed, this submission may take several minutes. If you receive an error that says Document contains no data, the process may be taking too long. In this event, there are other methods to download the data.

We can take this form as default and continue to:

Nation Border

Population

Drainage

Geography

Utility

Roads

Rail Roads

Transportation

All

-- TWikiAdminUser - 2009-10-26