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In order to speed up the download process of geometry files, MAPresso
uses a compact polygon boundary format (.psc). The Java application
shp2psc converts ArcInfo polygon shapefiles to
this format.
 Prepare
your shapefile
The necessary files for shapefile xxx are:
- xxx.shp
- xxx.dbf
In the later process you have to identify an ID and a name variable.
 The
ID variable in the dbf file must be numeric and the values
must be greater than 0; ID=0 are holes in the polygons (as lakes).
All thematic
data provided to MAPresso has to be in the order of this ID variable.
If there is no numeric ID variable, you have to enter one as a
column in the dbf file (use e.g. a spreadsheet program).
 Start
shp2psc
Select the shapefile and identify ID and name.
The program writes the following files:
- xxx.psc
- xxx.nam
- xxx.txt (all variables of the .dbf file)
- xxx.vnm (dito)
- index.html
 Put
a MAPresso.jar file into the same directory
If in the same directory there is a MAPresso.jar you should be
able to start the map by opening index.html in your browser. The
files can be a starting point for customizing your map (e.g. define
the data units and variable types in xxx.vnm and add or change the
parameters in index.html using a text editor).
It is not a very sophisticated application. Please mail problems.
Mac OS X: Unstuff and start the downloaded Application.
Other operating systems: start the downloaded
file shp2psc.jar with the command:
java -jar shp2psc.jar
Some debugging output is written to the Java console.
Download shp2psc
Send me your shapefile, I'll
try to send you the corresponding xxx.fil file.
This allows you to use the Dorling cartogram option and
the generalization tool.
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