UMN Mapserver packages
REPOSITORIES REMOVED BY ADMIN DUE AS ANNOUNCED

The Geospatial Data Abstraction Library (GDAL) is a unifying C/C++ API for
accessing raster geospatial data, and currently includes formats like
GeoTIFF, Erdas Imagine, Arc/Info Binary, CEOS, DTED, GXF, and SDTS. It is
intended to provide efficient access, suitable for use in viewer
applications, and also attempts to preserve coordinate systems and
metadata. Python, C, and C++ interfaces are available.

GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS). As such, it aims to contain the complete functionality of JTS in C++. This includes all the OpenGIS "Simple Features for SQL" spatial predicate functions and spatial operators, as well as specific JTS topology functions such as IsValid().

MapServer is a CGI based Web mapping application development tool. It
processes user defined configuration files and templates to allow for
a wide variety of applications to be developed, including interactive
mapping, and spatial query definition and processing. It supports
several data formats. Key features include scale dependent map
rendering, automatic scalebar and legend building, feature labeling
with collision avoidance, logical and thematic classifications, and
on-the-fly projection of raster and vector data. The application can
also access other WMS servers as a cascading map server.

The proj library provides cartographic reprojection support used in GIS software for
converting shapes from one coordinate system to another.