Getting a handle on the weather

Third Thursday talk was presented by Devin Eyre of Impact Weather. Tclshp implements the C API of shapelib in Tcl. Shapelib processes shapefiles which are used to store geographic shapes. Used in Geographical Information Systems (GIS) applications.

contains the shape data
contains index to data in the shape file
contains data about the individual shapes

Other languages have APIs for shapelib too (Delphi, Python, .NET, Visual Basic, Java, Perl, etc).

Various code examples shown. Showed a demo, using the Tcl plugin, of forecasts from advanced predictions during last years Hurricane Katrina.

Extension is licensed under the LGPL and is available on SourceForge.

—Michael A. Cleverly

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