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What is the Projection Engine?

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What is the Projection Engine?

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The Projection Engine is a developer’s library that provides map projection and datum transformation support. The data model is derived from a modified version of the European Petroleum Survey Group’s (EPSG) coordinate system model. The Projec…

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The Projection Engine is a developer’s library that provides map projection and datum transformation support. The data model is derived from a modified version of the European Petroleum Survey Group’s (EPSG) coordinate system model. The Projec… • Select the correct geographic (datum) transformation when projecting between datums It is necessary to specify a geographic (datum) transformation when using the ArcToolBox Project Wizard (ArcGIS version 8.x) or Project Tool (ArcGIS version 9.x) to project shapefiles or geodatabase feature classes between different geographic coo… • What do the terms geoid, ellipsoid, spheroid and datum mean, and how are they related? The geoid is defined as the surface of the earth’s gravity field, which is approximately the same as mean sea level. It is perpendicular to the direction of gravity pull. Since the mass of the Earth is not uniform at all points, and t… • After installing ArcGIS – ArcInfo 9.x the Coverage Tools are missing from ArcToolBox Af

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