WORLDDATAMAP wraps the Mapping Toolbox function WORLDMAP and adds data to the map. The data may consist of vector data from shapefiles or surface data from a regular data grid.
The design goal of WORLDDATAMAP is to create a function which wraps the Mapping Toolbox version 2.1 of WORLDMAP but provide the same functionality of WORLDMAP in versions prior to 2.1 (MATLAB versions R14SP1 and earlier). The goal of the interface design is for users to only add DATA to the function call WORLDMAP to view a similar figure as in prior versions of the function WORLDMAP.
WORLDDATAMAP uses the following sample data sets, which are provided with the demos in Version 2.1 of the Mapping Toolbox:
The landareas.shp file is the default vector dataset.
The worldcities.shp file displays the names and locations of the major metropolitan cities, if requested.
The worldrivers.shp and worldlakes.shp files display the the world's rivers and lakes, if requested.
Several new options are available for WORLDDATAMAP that do not exist in WORLDMAP. These include the following new FeatureType options:
In addition to the new FeatureType options, a FILENAME option has been added to provide data from a different shapefile. For example:
The SHAPEFILENAME must end in '.shp', or '.dbf'. This option provides the flexibility to use a different shapefile other than landareas.shp. The coordinate values of the shapefile must be in degrees.
The default region attribute field name is 'Name'. The field names are queried with SHAPEINFO. The default field name may be changed using the cell syntax, {FILENAME, REGIONATTRIBUTE}. For example:
This example will extract and display 'my_region' from the attribute field, 'Region' in the shapefile, 'filename.shp'.
WORLDDATAMAP verifies that Mapping Toolbox version 2.1 or higher is installed and that the Mapping Toolbox datasets exist.