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ILWIS (''Integrated L and Water Information System'') is a GIS / Remote sensing software for both vector and raster processing. ILWIS features include digitizing, editing, analysis and display of data as well as production of quality maps. ILWIS was initially developed and distributed by ITC Enschede (International Institute for Geo-Information Science and Earth Observation) in the Netherlands for use by its researchers and students, but since 1 July 2007 it has been distributed under the terms of the GNU General Public License and is thus free software.〔. 〕 Having been used by many students, teachers and researchers for more than two decades, ILWIS is one of the most user-friendly integrated vector and raster software programmes currently available. ILWIS has some very powerful raster analysis modules, a high-precision and flexible vector and point digitizing module, a variety of very practical tools, as well as a great variety of user guides and training modules all available for downloading. The current version is ILWIS 3.8.1. Similar to the GRASS GIS in many respects, ILWIS is currently available natively only on Microsoft Windows. However, a Linux Wine manual has been made available. ==History== In late 1984, ITC was awarded a grant from the Dutch Ministry of Foreign Affairs, which led to the development of a Geographic Information System (GIS) which could be used as a tool for land use planning and watershed management studies. By the end of 1988 the DOS version 1.0 of the Integrated Land and Water Information System (ILWIS) was released. Two years later, ILWIS was made commercial with ITC establishing a worldwide distributors network. ILWIS 2.0 for Windows was released at the end of 1996, and ILWIS 3.0 by mid-2001. On 1 January 2004, ILWIS 3.2 was released as a shareware (one-month trial offer). Since July 1, 2007, ILWIS has been distributed as an open source software under GPL license. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ILWIS」の詳細全文を読む スポンサード リンク
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