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(9) Coordinate System

2021, Geofive : Advanced Intelligence Technology

‫أساسيات هظم املعلىمات الجغسافية ‪GIS Fundamentals‬‬ ‫‪Lecture(9) : Coordinate System‬‬ ‫د‪ .‬طه الفضل طه علي ‪Taha Alfadul Taha Ali‬‬ ‫أستاذ مشازك‪ ،‬كلية علىم الحاسىب وثقاهة املعلىمات‪ ،‬جامعة الصعيم الاشهسي‬ ‫مديس مؤسسة جيىفايف للمدن الركية املستدامة‬ ‫ثخصص ثكنىلىجيا وثطبيقات علىم البياهات املكاهية‬ ‫‪Geospatial Data Science & Applications‬‬ ‫‪[email protected]‬‬ ‫‪1‬‬ Lecture(9) : Coordinate System 2 GIS Components : Coordinate System A geographic coordinate system (GCS) is a reference framework that defines the locations of features on a model of the earth. It’s shaped like a globe—spherical. Its units are angular, usually degrees. A projected coordinate system (PCS) is flat. It contains a GCS, but it converts that GCS into a flat surface, using math (the projection algorithm) and other parameters. Its units are linear, most commonly in meters. 3 Dr. Taha Alfadul Taha(GeoFive), [email protected]